Investment Risks |
Oct. 28, 2026 |
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| GraniteShares Autocallable AAPL ETF | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | PRINCIPAL RISKS OF INVESTING IN THE FUND
The principal risks of investing in the Fund are summarized below. As with any investment, there is a risk that you could lose all or a portion of your investment in the Fund. Each risk summarized below is considered a “principal risk” of investing in the Fund, regardless of the order in which it appears. Some or all of these risks may adversely affect the Fund’s net asset value per share (“NAV”), trading price, yield, total return and/or ability to meet its investment objectives. For more information about the risks of investing in the Fund, see the section in the Fund’s Prospectus titled “Additional Information About the Fund — Principal Risks of Investing in the Fund.”
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| GraniteShares Autocallable AAPL ETF | Underlying Asset Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Underlying Asset Risk. The performance of the Underlying Asset, and consequently the Fund’s performance, is subject to the risks of the computer industry. The Underlying Asset is subject to many risks that can negatively impact its revenue and viability including, but are not limited to price volatility risk, management risk, inflation risk, global economic risk, growth risk, supply and demand risk, operations risk, regulatory risk, environmental risk, terrorism risk and the risk of natural disasters. The Underlying Asset performance may be affected by global markets and demand for Apple’s products and services, its ability to develop new products and services, inventory levels, supply chain issues, the performance of third-party software developers, system and network failures, privacy and cybersecurity breaches and changes in international and government regulations. Information technology companies are heavily dependent on patent and intellectual property rights, the loss or impairment of which may adversely affect profitability. Additionally, companies in the information technology sector may face dramatic and often unpredictable changes in growth rates and competition for the services of qualified personnel. The Fund’s daily returns may be affected by many factors but will depend on the performance and volatility of the Underlying Asset.
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| GraniteShares Autocallable AAPL ETF | Derivatives Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Derivatives Risk. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds, interest rates or indexes. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other ordinary investments, including risk related to the market, imperfect correlation with underlying investments, higher price volatility, lack of availability, counterparty risk, liquidity, valuation and legal restrictions. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. The use of derivatives may result in larger losses or smaller gains than directly investing in securities. When the Fund uses derivatives, there may be an imperfect correlation between the value of the Underlying Asset and the derivative, which may prevent the Fund from achieving its investment objectives. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of those amounts initially invested. In addition, the Fund’s investments in derivatives are subject to the following risks:
Options Contracts. The use of options contracts involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which are affected by fiscal and monetary policies and by national and international political, changes in the actual or implied volatility or the reference asset, the time remaining until the expiration of the option contract and economic events. For the Fund, in particular, the value of the options contracts in which it invests is substantially influenced by the value of the Underlying Asset. Selling put options exposes the Fund to the risk of potential loss if the market value of the Underlying Asset falls below the strike price before the option expires. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to such date, the value of an option generally does not increase or decrease at the same rate at the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the underlying instrument, and there may at times not be a liquid secondary market for certain options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. Additionally, the Fund’s practice of “rolling” may cause the Fund to experience losses if the expiring contracts do not generate proceeds enough to cover the costs of entering into new options contracts. Rolling refers to the practice of closing out one options position and opening another with a different expiration date and/or a different strike price. Further, if an option is exercised, the seller (writer) of a put option is obligated to purchase the underlying asset at the strike price, which can result in significant financial and regulatory obligations for the Fund if the market value of the asset has fallen substantially. Furthermore, when the Fund seeks to trade out of puts, especially near expiration, there is an added risk that the Fund may be required to allocate resources unexpectedly to fulfill these obligations. This potential exposure to physical settlement can significantly impact the Fund’s liquidity and market exposure, particularly in volatile market conditions.
Swap Risk: Swaps are subject to tracking risk because they may not be perfect substitutes for the instruments they are intended to hedge or replace. Over the counter swaps are subject to counterparty default. Leverage inherent in derivatives will tend to magnify the Fund’s losses. The swap agreements may reference standardized exchange-traded, FLEX, European Style or American Style put options contracts that are based on the values of the price returns of the Underlying Asset. that generate specific risks.
Counterparty Risk. Counterparty risk is the risk that a counterparty to a financial instrument held by the Fund or by a special purpose or structured vehicle invested in by the Fund may become insolvent or otherwise fail to perform its obligations, and the Fund may obtain no or limited recovery of its investment, and any recovery may be significantly delayed.
Over-the-Counter Market Risk. Securities and options traded in over-the-counter markets may trade less frequently and in limited volumes and thus exhibit more volatility and liquidity risk, and the prices paid by the Fund in over-the-counter transactions may include an undisclosed dealer markup. The Fund is also exposed to default by the over-the-counter option writer who may be unwilling or unable to perform its contractual obligations to the Fund.
In addition, a counterparty (the other party to a transaction or an agreement or the party with whom the Fund executes transactions) to a transaction (including repurchase transaction) with the Fund may be unable or unwilling to make timely principal, interest or settlement payments, or otherwise honor its obligations.
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| GraniteShares Autocallable AAPL ETF | Autocallable Structure Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Autocallable Structure Risk. The Fund’s returns are correlated to the performance of a theoretical portfolio of autocallables. Autocallables have specific structural features that may be unfamiliar to many investors:
Contingent Income Risk. Coupon payments from autocallables are not guaranteed and will not be made if the Underlying Asset falls below the Coupon Barrier on observation dates. This means the Fund may generate significantly less income than anticipated during market downturns. The expected absence of future coupon payments over the term of an autocallable could materially affect its value.
Early Redemption Risk. Autocallables may be called before their scheduled maturity if the Underlying Asset reaches or exceeds the Autocallable Barrier on observation dates. This automatic early redemption could force reinvestment of that portion of the portfolio at lower rates if market yields have declined.
Barrier Risk. If the Underlying Asset falls below the Maturity Barrier at the maturity of an autocallable, that portion of the portfolio will be fully exposed to the negative performance of the Underlying Asset from its initial level. For example, if the Underlying Asset has declined 45% at maturity of a particular autocallable, the portfolio allocated to that autocallable would lose 45% of its value. This conditional protection creates a binary outcome that can result in sudden, significant losses if barriers are breached.
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| GraniteShares Autocallable AAPL ETF | Calculation Methodology Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Calculation Methodology Risk. Autocallables rely on complex calculation methodologies that may not perform as expected under certain market conditions.
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| GraniteShares Autocallable AAPL ETF | Distribution Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective, the Fund seeks to provide current monthly income. There is no assurance that the Fund will make a distribution in any given month. If the Fund makes distributions, the amounts of such distributions will likely vary greatly from one distribution to the next. Additionally, the monthly distributions, if any, may consist of returns of capital, which would decrease the Fund’s NAV and trading price over time. As a result, an investor may suffer significant losses to their investment.
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| GraniteShares Autocallable AAPL ETF | NAV Erosion Risk Due to Distributions [Member] | |||||||||||||||||||
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| GraniteShares Autocallable AAPL ETF | Option Market Liquidity Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Option Market Liquidity Risk. Liquidity risk exists when particular investments are difficult to purchase or sell. The Fund’s investments in illiquid investments may reduce the returns of the Fund because it may be unable to sell the illiquid investments at an advantageous time or price.
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| GraniteShares Autocallable AAPL ETF | Laddered Portfolio Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Laddered Portfolio Risk. A laddered portfolio strategy may not perform as expected if market conditions remain unfavorable over an extended period, multiple autocallable instruments may experience losses simultaneously and/or the reallocation across autocallable instruments may result in suboptimal entry points during rapidly changing markets. A portfolio of autocallables providing exposure to the same Underlying Asset may not be homogeneously affected by a change in that Underlying Asset price as the impact of such change may depend on the tenor of each autocallable. Depending on market conditions, requests to create and/or redeem shares in the Fund may result in the average tenor of the portfolio of autocallables held by the Fund to deviate from the average tenor the Fund intends to achieve.
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| GraniteShares Autocallable AAPL ETF | Concentration Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Concentration Risk. To the extent that the Underlying Asset concentrates its investments in a particular industry, the Fund will be subject to the risks associated with that industry.
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| GraniteShares Autocallable AAPL ETF | ETF Risks [Member] | |||||||||||||||||||
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| Risk [Text Block] | ETF Risks.
Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that are authorized to purchase and redeem Shares directly from the Fund (known as “Authorized Participants” or “APs”). There are a limited number of financial institutions that post collateral for certain trades on an agency basis (i.e. on behalf of other market participants). In such circumstances, the Fund’s market price may be significantly different than its underlying net asset value. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services; or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
Cash Redemption Risk. The Fund currently expects to effect a significant portion of its creations and redemptions for cash, rather than in-kind securities. Paying redemption proceeds in cash rather than through in-kind delivery of portfolio securities may require the Fund to dispose of or sell portfolio securities or other assets at an inopportune time to obtain the cash needed to meet redemption orders. This may cause the Fund to sell a security and recognize a capital gain or loss that might not have been incurred if it had made a redemption in-kind. As a result, the Fund may pay out higher or lower annual capital gains distributions than ETFs that redeem in-kind. The use of cash creations and redemptions may also cause the Fund’s Shares to trade in the market at greater bid-ask spreads or greater premiums or discounts to the Fund’s NAV. Furthermore, the Fund may not be able to execute cash transactions for creation and redemption purposes at the same price used to determine the Fund’s NAV. To the extent that the maximum additional charge for creation or redemption transactions is insufficient to cover the execution shortfall, the Fund’s performance could be negatively impacted.
Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid-ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.
Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant.
Trading. Although Shares are listed on a national securities exchange, such as The Nasdaq Stock Market, LLC (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that an active trading market for the Shares will develop or be maintained or that the Shares will trade with any volume, or at all, on any stock exchange. This risk may be greater for the Fund as it seeks to have exposure to a single underlying stock as opposed to a more diverse portfolio like a traditional pooled investment. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares. Shares trade on the Exchange at a market price that may be below, at or above the Fund’s NAV. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged. In the event of an unscheduled market close for options contracts that reference a single stock, such as the Underlying Asset’s securities being halted or a market wide closure, settlement prices will be determined by the procedures of the listing exchange of the options contracts. As a result, the Fund could be adversely affected and be unable to implement its investment strategies in the event of an unscheduled closing.
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| GraniteShares Autocallable AAPL ETF | High Portfolio Turnover Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | High Portfolio Turnover Risk. The Fund may actively and frequently trade all or a significant portion of the Fund’s holdings. A high portfolio turnover rate increases transaction costs, which may increase the Fund’s expenses. Frequent trading may also cause adverse tax consequences for investors in the Fund due to an increase in short-term capital gains.
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| GraniteShares Autocallable AAPL ETF | Inflation Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the present value of the Fund’s assets and distributions, if any, may decline.
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| GraniteShares Autocallable AAPL ETF | Liquidity Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Liquidity Risk. Some securities held by the Fund, including options contracts, may be difficult to sell or be illiquid, particularly during times of market turmoil. This risk is greater for the Fund as it will hold options contracts on a single security, and not a broader range of options contracts. Markets for securities or financial instruments could be disrupted by a number of events, including, but not limited to, an economic crisis, natural disasters, epidemics/pandemics, new legislation or regulatory changes inside or outside the United States. Illiquid securities may be difficult to value, especially in changing or volatile markets. If the Fund is forced to sell an illiquid security at an unfavorable time or price, the Fund may be adversely impacted. Certain market conditions or restrictions, such as market rules related to short sales, may prevent the Fund from limiting losses, realizing gains or achieving a high correlation with the Underlying Asset. There is no assurance that a security that is deemed liquid when purchased will continue to be liquid. Market illiquidity may cause losses for the Fund.
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| GraniteShares Autocallable AAPL ETF | Management Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Management Risk. The Fund is subject to management risk because it is an actively managed portfolio. In managing the Fund’s investment portfolio, the portfolio managers will apply investment techniques and risk analyses that may not produce the desired result. There can be no guarantee that the Fund will meet its investment objective.
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| GraniteShares Autocallable AAPL ETF | Money Market Instrument Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Repurchase agreements are contracts in which a seller of securities agrees to buy the securities back at a specified time and price. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments, including money market funds, may lose money through fees or other means.
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| GraniteShares Autocallable AAPL ETF | New Fund Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | New Fund Risk. The Fund is a recently organized management investment company with no operating history. As a result, prospective investors do not have a track record or history on which to base their investment decisions.
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| GraniteShares Autocallable AAPL ETF | Non-Diversification Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Non-Diversification Risk. Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer or a smaller number of issuers than if it was a diversified fund. As a result, a decline in the value of an investment in a single issuer or a smaller number of issuers could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio.
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| GraniteShares Autocallable AAPL ETF | Operational Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Operational Risk. The Fund is subject to risks arising from various operational factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund relies on third-parties for a range of services, including custody. Any delay or failure relating to engaging or maintaining such service providers may affect the Fund’s ability to meet its investment objective. Although the Fund and the Adviser seek to reduce these operational risks through controls and procedures, there is no way to completely protect against such risks.
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| GraniteShares Autocallable AAPL ETF | Recent Market Events Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Recent Market Events Risk. U.S. and international markets have experienced significant periods of volatility in recent years due to a number of economic, political and global macro factors, including uncertainty regarding interest rates and inflation, rising government debt in the U.S. and elsewhere, political events, changes in trade policy and armed conflict. Public health emergencies, such as the COVID-19 pandemic, have in the past caused, and may in the future cause, disruptions to business operations and supply chains, reduced consumer demand and significant market volatility. Armed conflict, including the conflict between Russia and Ukraine and conflicts in the Middle East, has caused, and could continue to cause, loss of life and severe adverse effects on regional and global economies and on the markets for certain securities and commodities. The U.S., the European Union and other countries have imposed, and may impose additional, sanctions and other restrictive measures on certain countries, individuals and companies, which could adversely affect the issuers, markets and economies concerned. In addition, the U.S. has imposed, and may continue to impose, tariffs and other trade barriers, and other countries have imposed or may impose retaliatory measures. Trade disputes between the U.S. and other countries could result in additional tariffs, trade barriers and/or investment restrictions. These and other events could adversely affect the Fund’s performance, and their duration and full effects cannot be predicted.
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| GraniteShares Autocallable AAPL ETF | Single Issuer Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Single Issuer Risk. Issuer-specific attributes may cause an investment in the Fund to be more volatile than a traditional pooled investment vehicle which diversifies risk or the market generally. The value of the Fund, which focuses on an individual security (the Underlying Asset), may be more volatile than a traditional pooled investment or the market as a whole and may perform differently from the value of a traditional pooled investment or the market as a whole.
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| GraniteShares Autocallable AAPL ETF | Tax Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Tax Risk. The Fund intends to elect and to qualify each year to be treated as a RIC under Subchapter M of the Code. As a RIC, the Fund will not be subject to U.S. federal income tax on the portion of its net investment income and net capital gain that it distributes to Shareholders, provided that it satisfies certain requirements of the Code. If the Fund does not qualify as a RIC for any taxable year and certain relief provisions are not available, the Fund’s taxable income will be subject to tax at the Fund level and to a further tax at the shareholder level when such income is distributed. To comply with the asset diversification test applicable to a RIC, the Fund will attempt to ensure that the value of the derivatives it holds never exceed 25% of the total value of Fund assets at the close of any quarter. If the Fund’s investments in the derivatives were to exceed 25% of the Fund’s total assets at the end of a tax quarter, the Fund, generally, has a grace period to cure such lack of compliance. If the Fund fails to timely cure, it may no longer be eligible to be treated as a RIC. In addition, distributions received by the Fund from the Underlying Asset may generate “bad income” that could prevent the Fund from meeting the “Income Requirement” of Subchapter M of the Code, which may cause the Fund to fail to qualify as a RIC. The Fund intends to treat any income it may derive from the options and swap contracts as “qualifying income” under the provisions of the Code applicable to RICs. If the income is not qualifying income the Fund may lose its status as a RIC. The Fund will, for each year, distribute substantially all of its net investment income and net capital gains.
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| GraniteShares Autocallable AAPL ETF | Investing In U.S. Equities Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Investing in U.S. Equities Risk. Investing in U.S. issuers subjects the Fund to legal, regulatory, political, currency, security, and economic risks that are specific to the U.S. Certain changes in the U.S., such as a weakening of the U.S. economy or a decline in its financial markets, may have an adverse effect on U.S. issuers.
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| GraniteShares Autocallable AAPL ETF | Affiliated Etfs Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Affiliated ETFs Risk. The Fund may invest in equity securities of other ETFs for which the Adviser serves as investment adviser. It is possible that a conflict of interest may arise. Additionally, to the extent the Fund invests in the securities of another affiliated ETF, the Fund will be subject to the investment risks of the ETF. Shareholders of the Fund are subject to duplicative expenses to the extent of the Fund’s investment in any affiliated ETF. Finally, the shares of the ETFs in which the Fund may invest will be listed on a national securities exchange and the Fund will purchase or sell these shares on the secondary market at its current market price, which may be more or less than its net asset value per share.
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| GraniteShares Autocallable AAPL ETF | Box Spread E T F Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Box Spread ETF Risk. The Fund may invest in LBOX, an affiliated ETF advised by GraniteShares Advisors LLC, the Fund’s investment adviser, that employs a market-neutral box spread strategy to generate short-term, fixed-income-like returns. Box spread positions involve simultaneous long and short synthetic options positions on the same reference asset and are structured to capture an implied financing rate. While box spreads are designed to be market-neutral and to generate a return approximating prevailing short-term interest rates, they are subject to execution risk, counterparty risk with respect to the options positions, and the risk that the implied financing rate embedded in the box spread diverges from prevailing market rates in periods of market stress. The Fund’s investments in LBOX are made pursuant to Section 12(d)(1)(G) of the 1940 Act, which imposes no percentage-of-assets limits on the Fund’s investment in an exchange-traded fund. Accordingly, the Fund could, at any time, hold a material allocation in LBOX. The Fund’s adviser faces a conflict of interest in allocating Fund assets to an affiliated fund such as LBOX; see “Affiliated ETFs Risk.”
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| GraniteShares Autocallable AAPL ETF | U.S. Government And U.S. Agency Obligations Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | U.S. Government and U.S. Agency Obligations Risk. The Fund may invest in securities issued by the U.S. government or its agencies or instrumentalities. U.S. Government obligations include securities issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, such as the U.S. Treasury. Payment of principal and interest on U.S. Government obligations may be backed by the full faith and credit of the United States or may be backed solely by the issuing or guaranteeing agency or instrumentality itself. In the latter case, the investor must look principally to the agency or instrumentality issuing or guaranteeing the obligation for ultimate repayment, which agency or instrumentality may be privately owned. There can be no assurance that the U.S. Government would provide financial support to its agencies or instrumentalities (including government-sponsored enterprises) where it is not obligated to do so.
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| GraniteShares Autocallable AAPL ETF | Fixed Income Securities Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Fixed Income Securities Risk. The market value of Fixed Income Securities will change in response to interest rate changes and other factors, such as changes in the effective maturities and credit ratings of fixed income investments. During periods of falling interest rates, the values of outstanding Fixed Income Securities and related financial instruments generally rise. Conversely, during periods of rising interest rates, the values of such securities and related financial instruments generally decline. Fixed Income Securities are also subject to credit risk.
Investments in Fixed Income Securities may also involve the following risks, depending on the instrument involved:
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| GraniteShares Autocallable AMD ETF | |||||||||||||||||||
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| Risk [Text Block] | PRINCIPAL RISKS OF INVESTING IN THE FUND
The principal risks of investing in the Fund are summarized below. As with any investment, there is a risk that you could lose all or a portion of your investment in the Fund. Each risk summarized below is considered a “principal risk” of investing in the Fund, regardless of the order in which it appears. Some or all of these risks may adversely affect the Fund’s net asset value per share (“NAV”), trading price, yield, total return and/or ability to meet its investment objectives. For more information about the risks of investing in the Fund, see the section in the Fund’s Prospectus titled “Additional Information About the Fund — Principal Risks of Investing in the Fund.”
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| GraniteShares Autocallable AMD ETF | Underlying Asset Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Underlying Asset Risk. The performance of the Underlying Asset, and consequently the Fund’s performance, is subject to the risks of the semiconductor sector. The Underlying Asset is subject to many risks that can negatively impact its revenue and viability including, but are not limited to price volatility risk, management risk, inflation risk, global economic risk, growth risk, supply and demand risk, operations risk, regulatory risk, environmental risk, terrorism risk and the risk of natural disasters. The Underlying Asset performance may be affected by the company’s significant customer losses, its inability to develop and implement new technologies, its reliance on third-party distributors and platforms, cybersecurity attacks, its inability to protect its intellectual property rights and global laws and regulations affecting privacy, data protection and technology protections. The semiconductor industry may also be affected by risks that affect the broader technology sector, including: government regulation; dramatic and often unpredictable changes in growth rates and competition for qualified personnel; and a small number of companies representing a large portion of the technology sector as a whole. The Fund’s daily returns may be affected by many factors but will depend on the performance and volatility of the Underlying Asset.
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| GraniteShares Autocallable AMD ETF | Derivatives Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Derivatives Risk. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds, interest rates or indexes. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other ordinary investments, including risk related to the market, imperfect correlation with underlying investments, higher price volatility, lack of availability, counterparty risk, liquidity, valuation and legal restrictions. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. The use of derivatives may result in larger losses or smaller gains than directly investing in securities. When the Fund uses derivatives, there may be an imperfect correlation between the value of the Underlying Asset and the derivative, which may prevent the Fund from achieving its investment objectives. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of those amounts initially invested. In addition, the Fund’s investments in derivatives are subject to the following risks:
Options Contracts. The use of options contracts involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which are affected by fiscal and monetary policies and by national and international political, changes in the actual or implied volatility or the reference asset, the time remaining until the expiration of the option contract and economic events. For the Fund, in particular, the value of the options contracts in which it invests is substantially influenced by the value of the Underlying Asset. Selling put options exposes the Fund to the risk of potential loss if the market value of the Underlying Asset falls below the strike price before the option expires. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to such date, the value of an option generally does not increase or decrease at the same rate at the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the underlying instrument, and there may at times not be a liquid secondary market for certain options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. Additionally, the Fund’s practice of “rolling” may cause the Fund to experience losses if the expiring contracts do not generate proceeds enough to cover the costs of entering into new options contracts. Rolling refers to the practice of closing out one options position and opening another with a different expiration date and/or a different strike price. Further, if an option is exercised, the seller (writer) of a put option is obligated to purchase the underlying asset at the strike price, which can result in significant financial and regulatory obligations for the Fund if the market value of the asset has fallen substantially. Furthermore, when the Fund seeks to trade out of puts, especially near expiration, there is an added risk that the Fund may be required to allocate resources unexpectedly to fulfill these obligations. This potential exposure to physical settlement can significantly impact the Fund’s liquidity and market exposure, particularly in volatile market conditions.
Swap Risk: Swaps are subject to tracking risk because they may not be perfect substitutes for the instruments they are intended to hedge or replace. Over the counter swaps are subject to counterparty default. Leverage inherent in derivatives will tend to magnify the Fund’s losses. The swap agreements may reference standardized exchange-traded, FLEX, European Style or American Style put options contracts that are based on the values of the price returns of the Underlying Asset. that generate specific risks.
Counterparty Risk. Counterparty risk is the risk that a counterparty to a financial instrument held by the Fund or by a special purpose or structured vehicle invested in by the Fund may become insolvent or otherwise fail to perform its obligations, and the Fund may obtain no or limited recovery of its investment, and any recovery may be significantly delayed.
Over-the-Counter Market Risk. Securities and options traded in over-the-counter markets may trade less frequently and in limited volumes and thus exhibit more volatility and liquidity risk, and the prices paid by the Fund in over-the-counter transactions may include an undisclosed dealer markup. The Fund is also exposed to default by the over-the-counter option writer who may be unwilling or unable to perform its contractual obligations to the Fund.
In addition, a counterparty (the other party to a transaction or an agreement or the party with whom the Fund executes transactions) to a transaction (including repurchase transaction) with the Fund may be unable or unwilling to make timely principal, interest or settlement payments, or otherwise honor its obligations.
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| GraniteShares Autocallable AMD ETF | Autocallable Structure Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Autocallable Structure Risk. The Fund’s returns are correlated to the performance of a theoretical portfolio of autocallables. Autocallables have specific structural features that may be unfamiliar to many investors:
Contingent Income Risk. Coupon payments from autocallables are not guaranteed and will not be made if the Underlying Asset falls below the Coupon Barrier on observation dates. This means the Fund may generate significantly less income than anticipated during market downturns. The expected absence of future coupon payments over the term of an autocallable could materially affect its value.
Early Redemption Risk. Autocallables may be called before their scheduled maturity if the Underlying Asset reaches or exceeds the Autocallable Barrier on observation dates. This automatic early redemption could force reinvestment of that portion of the portfolio at lower rates if market yields have declined.
Barrier Risk. If the Underlying Asset falls below the Maturity Barrier at the maturity of an autocallable, that portion of the portfolio will be fully exposed to the negative performance of the Underlying Asset from its initial level. For example, if the Underlying Asset has declined 45% at maturity of a particular autocallable, the portfolio allocated to that autocallable would lose 45% of its value. This conditional protection creates a binary outcome that can result in sudden, significant losses if barriers are breached.
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| GraniteShares Autocallable AMD ETF | Calculation Methodology Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Calculation Methodology Risk. Autocallables rely on complex calculation methodologies that may not perform as expected under certain market conditions.
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| GraniteShares Autocallable AMD ETF | Distribution Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective, the Fund seeks to provide current monthly income. There is no assurance that the Fund will make a distribution in any given month. If the Fund makes distributions, the amounts of such distributions will likely vary greatly from one distribution to the next. Additionally, the monthly distributions, if any, may consist of returns of capital, which would decrease the Fund’s NAV and trading price over time. As a result, an investor may suffer significant losses to their investment.
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| GraniteShares Autocallable AMD ETF | NAV Erosion Risk Due to Distributions [Member] | |||||||||||||||||||
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| GraniteShares Autocallable AMD ETF | Option Market Liquidity Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Option Market Liquidity Risk. Liquidity risk exists when particular investments are difficult to purchase or sell. The Fund’s investments in illiquid investments may reduce the returns of the Fund because it may be unable to sell the illiquid investments at an advantageous time or price.
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| GraniteShares Autocallable AMD ETF | Laddered Portfolio Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Laddered Portfolio Risk. A laddered portfolio strategy may not perform as expected if market conditions remain unfavorable over an extended period, multiple autocallable instruments may experience losses simultaneously and/or the reallocation across autocallable instruments may result in suboptimal entry points during rapidly changing markets. A portfolio of autocallables providing exposure to the same Underlying Asset may not be homogeneously affected by a change in that Underlying Asset price as the impact of such change may depend on the tenor of each autocallable. Depending on market conditions, requests to create and/or redeem shares in the Fund may result in the average tenor of the portfolio of autocallables held by the Fund to deviate from the average tenor the Fund intends to achieve.
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| GraniteShares Autocallable AMD ETF | Concentration Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Concentration Risk. To the extent that the Underlying Asset concentrates its investments in a particular industry, the Fund will be subject to the risks associated with that industry.
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| GraniteShares Autocallable AMD ETF | ETF Risks [Member] | |||||||||||||||||||
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| Risk [Text Block] | ETF Risks.
Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that are authorized to purchase and redeem Shares directly from the Fund (known as “Authorized Participants” or “APs”). There are a limited number of financial institutions that post collateral for certain trades on an agency basis (i.e. on behalf of other market participants). In such circumstances, the Fund’s market price may be significantly different than its underlying net asset value. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services; or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
Cash Redemption Risk. The Fund currently expects to effect a significant portion of its creations and redemptions for cash, rather than in-kind securities. Paying redemption proceeds in cash rather than through in-kind delivery of portfolio securities may require the Fund to dispose of or sell portfolio securities or other assets at an inopportune time to obtain the cash needed to meet redemption orders. This may cause the Fund to sell a security and recognize a capital gain or loss that might not have been incurred if it had made a redemption in-kind. As a result, the Fund may pay out higher or lower annual capital gains distributions than ETFs that redeem in-kind. The use of cash creations and redemptions may also cause the Fund’s Shares to trade in the market at greater bid-ask spreads or greater premiums or discounts to the Fund’s NAV. Furthermore, the Fund may not be able to execute cash transactions for creation and redemption purposes at the same price used to determine the Fund’s NAV. To the extent that the maximum additional charge for creation or redemption transactions is insufficient to cover the execution shortfall, the Fund’s performance could be negatively impacted.
Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid-ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.
Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant.
Trading. Although Shares are listed on a national securities exchange, such as The Nasdaq Stock Market, LLC (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that an active trading market for the Shares will develop or be maintained or that the Shares will trade with any volume, or at all, on any stock exchange. This risk may be greater for the Fund as it seeks to have exposure to a single underlying stock as opposed to a more diverse portfolio like a traditional pooled investment. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares. Shares trade on the Exchange at a market price that may be below, at or above the Fund’s NAV. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged. In the event of an unscheduled market close for options contracts that reference a single stock, such as the Underlying Asset’s securities being halted or a market wide closure, settlement prices will be determined by the procedures of the listing exchange of the options contracts. As a result, the Fund could be adversely affected and be unable to implement its investment strategies in the event of an unscheduled closing.
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| GraniteShares Autocallable AMD ETF | High Portfolio Turnover Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | High Portfolio Turnover Risk. The Fund may actively and frequently trade all or a significant portion of the Fund’s holdings. A high portfolio turnover rate increases transaction costs, which may increase the Fund’s expenses. Frequent trading may also cause adverse tax consequences for investors in the Fund due to an increase in short-term capital gains.
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| GraniteShares Autocallable AMD ETF | Inflation Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the present value of the Fund’s assets and distributions, if any, may decline.
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| GraniteShares Autocallable AMD ETF | Liquidity Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Liquidity Risk. Some securities held by the Fund, including options contracts, may be difficult to sell or be illiquid, particularly during times of market turmoil. This risk is greater for the Fund as it will hold options contracts on a single security, and not a broader range of options contracts. Markets for securities or financial instruments could be disrupted by a number of events, including, but not limited to, an economic crisis, natural disasters, epidemics/pandemics, new legislation or regulatory changes inside or outside the United States. Illiquid securities may be difficult to value, especially in changing or volatile markets. If the Fund is forced to sell an illiquid security at an unfavorable time or price, the Fund may be adversely impacted. Certain market conditions or restrictions, such as market rules related to short sales, may prevent the Fund from limiting losses, realizing gains or achieving a high correlation with the Underlying Asset. There is no assurance that a security that is deemed liquid when purchased will continue to be liquid. Market illiquidity may cause losses for the Fund.
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| GraniteShares Autocallable AMD ETF | Management Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Management Risk. The Fund is subject to management risk because it is an actively managed portfolio. In managing the Fund’s investment portfolio, the portfolio managers will apply investment techniques and risk analyses that may not produce the desired result. There can be no guarantee that the Fund will meet its investment objective.
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| GraniteShares Autocallable AMD ETF | Money Market Instrument Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Repurchase agreements are contracts in which a seller of securities agrees to buy the securities back at a specified time and price. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments, including money market funds, may lose money through fees or other means.
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| GraniteShares Autocallable AMD ETF | New Fund Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | New Fund Risk. The Fund is a recently organized management investment company with no operating history. As a result, prospective investors do not have a track record or history on which to base their investment decisions.
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| GraniteShares Autocallable AMD ETF | Non-Diversification Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Non-Diversification Risk. Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer or a smaller number of issuers than if it was a diversified fund. As a result, a decline in the value of an investment in a single issuer or a smaller number of issuers could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio.
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| GraniteShares Autocallable AMD ETF | Operational Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Operational Risk. The Fund is subject to risks arising from various operational factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund relies on third-parties for a range of services, including custody. Any delay or failure relating to engaging or maintaining such service providers may affect the Fund’s ability to meet its investment objective. Although the Fund and the Adviser seek to reduce these operational risks through controls and procedures, there is no way to completely protect against such risks.
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| GraniteShares Autocallable AMD ETF | Recent Market Events Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Recent Market Events Risk. U.S. and international markets have experienced significant periods of volatility in recent years due to a number of economic, political and global macro factors, including uncertainty regarding interest rates and inflation, rising government debt in the U.S. and elsewhere, political events, changes in trade policy and armed conflict. Public health emergencies, such as the COVID-19 pandemic, have in the past caused, and may in the future cause, disruptions to business operations and supply chains, reduced consumer demand and significant market volatility. Armed conflict, including the conflict between Russia and Ukraine and conflicts in the Middle East, has caused, and could continue to cause, loss of life and severe adverse effects on regional and global economies and on the markets for certain securities and commodities. The U.S., the European Union and other countries have imposed, and may impose additional, sanctions and other restrictive measures on certain countries, individuals and companies, which could adversely affect the issuers, markets and economies concerned. In addition, the U.S. has imposed, and may continue to impose, tariffs and other trade barriers, and other countries have imposed or may impose retaliatory measures. Trade disputes between the U.S. and other countries could result in additional tariffs, trade barriers and/or investment restrictions. These and other events could adversely affect the Fund’s performance, and their duration and full effects cannot be predicted.
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| GraniteShares Autocallable AMD ETF | Single Issuer Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Single Issuer Risk. Issuer-specific attributes may cause an investment in the Fund to be more volatile than a traditional pooled investment vehicle which diversifies risk or the market generally. The value of the Fund, which focuses on an individual security (the Underlying Asset), may be more volatile than a traditional pooled investment or the market as a whole and may perform differently from the value of a traditional pooled investment or the market as a whole.
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| GraniteShares Autocallable AMD ETF | Tax Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Tax Risk. The Fund intends to elect and to qualify each year to be treated as a RIC under Subchapter M of the Code. As a RIC, the Fund will not be subject to U.S. federal income tax on the portion of its net investment income and net capital gain that it distributes to Shareholders, provided that it satisfies certain requirements of the Code. If the Fund does not qualify as a RIC for any taxable year and certain relief provisions are not available, the Fund’s taxable income will be subject to tax at the Fund level and to a further tax at the shareholder level when such income is distributed. To comply with the asset diversification test applicable to a RIC, the Fund will attempt to ensure that the value of the derivatives it holds never exceed 25% of the total value of Fund assets at the close of any quarter. If the Fund’s investments in the derivatives were to exceed 25% of the Fund’s total assets at the end of a tax quarter, the Fund, generally, has a grace period to cure such lack of compliance. If the Fund fails to timely cure, it may no longer be eligible to be treated as a RIC. In addition, distributions received by the Fund from the Underlying Asset may generate “bad income” that could prevent the Fund from meeting the “Income Requirement” of Subchapter M of the Code, which may cause the Fund to fail to qualify as a RIC. The Fund intends to treat any income it may derive from the options and swap contracts as “qualifying income” under the provisions of the Code applicable to RICs. If the income is not qualifying income the Fund may lose its status as a RIC. The Fund will, for each year, distribute substantially all of its net investment income and net capital gains.
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| GraniteShares Autocallable AMD ETF | Investing In U.S. Equities Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Investing in U.S. Equities Risk. Investing in U.S. issuers subjects the Fund to legal, regulatory, political, currency, security, and economic risks that are specific to the U.S. Certain changes in the U.S., such as a weakening of the U.S. economy or a decline in its financial markets, may have an adverse effect on U.S. issuers.
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| GraniteShares Autocallable AMD ETF | Affiliated Etfs Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Affiliated ETFs Risk. The Fund may invest in equity securities of other ETFs for which the Adviser serves as investment adviser. It is possible that a conflict of interest may arise. Additionally, to the extent the Fund invests in the securities of another affiliated ETF, the Fund will be subject to the investment risks of the ETF. Shareholders of the Fund are subject to duplicative expenses to the extent of the Fund’s investment in any affiliated ETF. Finally, the shares of the ETFs in which the Fund may invest will be listed on a national securities exchange and the Fund will purchase or sell these shares on the secondary market at its current market price, which may be more or less than its net asset value per share.
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| GraniteShares Autocallable AMD ETF | Box Spread E T F Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Box Spread ETF Risk. The Fund may invest in LBOX, an affiliated ETF advised by GraniteShares Advisors LLC, the Fund’s investment adviser, that employs a market-neutral box spread strategy to generate short-term, fixed-income-like returns. Box spread positions involve simultaneous long and short synthetic options positions on the same reference asset and are structured to capture an implied financing rate. While box spreads are designed to be market-neutral and to generate a return approximating prevailing short-term interest rates, they are subject to execution risk, counterparty risk with respect to the options positions, and the risk that the implied financing rate embedded in the box spread diverges from prevailing market rates in periods of market stress. The Fund’s investments in LBOX are made pursuant to Section 12(d)(1)(G) of the 1940 Act, which imposes no percentage-of-assets limits on the Fund’s investment in an exchange-traded fund. Accordingly, the Fund could, at any time, hold a material allocation in LBOX. The Fund’s adviser faces a conflict of interest in allocating Fund assets to an affiliated fund such as LBOX; see “Affiliated ETFs Risk.”
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| GraniteShares Autocallable AMD ETF | U.S. Government And U.S. Agency Obligations Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | U.S. Government and U.S. Agency Obligations Risk. The Fund may invest in securities issued by the U.S. government or its agencies or instrumentalities. U.S. Government obligations include securities issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, such as the U.S. Treasury. Payment of principal and interest on U.S. Government obligations may be backed by the full faith and credit of the United States or may be backed solely by the issuing or guaranteeing agency or instrumentality itself. In the latter case, the investor must look principally to the agency or instrumentality issuing or guaranteeing the obligation for ultimate repayment, which agency or instrumentality may be privately owned. There can be no assurance that the U.S. Government would provide financial support to its agencies or instrumentalities (including government-sponsored enterprises) where it is not obligated to do so.
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| GraniteShares Autocallable AMD ETF | Fixed Income Securities Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Fixed Income Securities Risk. The market value of Fixed Income Securities will change in response to interest rate changes and other factors, such as changes in the effective maturities and credit ratings of fixed income investments. During periods of falling interest rates, the values of outstanding Fixed Income Securities and related financial instruments generally rise. Conversely, during periods of rising interest rates, the values of such securities and related financial instruments generally decline. Fixed Income Securities are also subject to credit risk.
Investments in Fixed Income Securities may also involve the following risks, depending on the instrument involved:
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| GraniteShares Autocallable AMZN ETF | |||||||||||||||||||
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| Risk [Text Block] | PRINCIPAL RISKS OF INVESTING IN THE FUND
The principal risks of investing in the Fund are summarized below. As with any investment, there is a risk that you could lose all or a portion of your investment in the Fund. Each risk summarized below is considered a “principal risk” of investing in the Fund, regardless of the order in which it appears. Some or all of these risks may adversely affect the Fund’s net asset value per share (“NAV”), trading price, yield, total return and/or ability to meet its investment objectives. For more information about the risks of investing in the Fund, see the section in the Fund’s Prospectus titled “Additional Information About the Fund — Principal Risks of Investing in the Fund.”
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| GraniteShares Autocallable AMZN ETF | Underlying Asset Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Underlying Asset Risk. The performance of the Underlying Asset, and consequently the Fund’s performance, is subject to the risks of the online retail industry. Companies that operate in the online marketplace and retail segments are subject to fluctuating consumer demand. Unlike traditional brick and mortar retailers, online marketplaces and retailers must assume shipping costs or pass such costs to consumers. Consumer access to price information for the same or similar products may cause companies that operate in the online marketplace and retail segments to reduce profit margins in order to compete. Due to the nature of their business models, companies that operate in the online marketplace and retail segments may also be subject to heightened cyber security risk, including the risk of theft or damage to vital hardware, software and information systems. The loss or public dissemination of sensitive customer information or other proprietary data may negatively affect the financial performance of such companies to a greater extent than traditional brick and mortar retailers. As a result of such companies being web-based and the fact that they process, store, and transmit large amounts of data, including personal information, for their customers, failure to prevent or mitigate data loss or other security breaches, including breaches of vendors’ technology and systems, could expose companies that operate in the online marketplace and retail segments or their customers to a risk of loss or misuse of such information, adversely affect their operating results, result in litigation or potential liability, and otherwise harm their businesses.
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| GraniteShares Autocallable AMZN ETF | Derivatives Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Derivatives Risk. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds, interest rates or indexes. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other ordinary investments, including risk related to the market, imperfect correlation with underlying investments, higher price volatility, lack of availability, counterparty risk, liquidity, valuation and legal restrictions. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. The use of derivatives may result in larger losses or smaller gains than directly investing in securities. When the Fund uses derivatives, there may be an imperfect correlation between the value of the Underlying Asset and the derivative, which may prevent the Fund from achieving its investment objectives. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of those amounts initially invested. In addition, the Fund’s investments in derivatives are subject to the following risks:
Options Contracts. The use of options contracts involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which are affected by fiscal and monetary policies and by national and international political, changes in the actual or implied volatility or the reference asset, the time remaining until the expiration of the option contract and economic events. For the Fund, in particular, the value of the options contracts in which it invests is substantially influenced by the value of the Underlying Asset. Selling put options exposes the Fund to the risk of potential loss if the market value of the Underlying Asset falls below the strike price before the option expires. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to such date, the value of an option generally does not increase or decrease at the same rate at the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the underlying instrument, and there may at times not be a liquid secondary market for certain options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. Additionally, the Fund’s practice of “rolling” may cause the Fund to experience losses if the expiring contracts do not generate proceeds enough to cover the costs of entering into new options contracts. Rolling refers to the practice of closing out one options position and opening another with a different expiration date and/or a different strike price. Further, if an option is exercised, the seller (writer) of a put option is obligated to purchase the underlying asset at the strike price, which can result in significant financial and regulatory obligations for the Fund if the market value of the asset has fallen substantially. Furthermore, when the Fund seeks to trade out of puts, especially near expiration, there is an added risk that the Fund may be required to allocate resources unexpectedly to fulfill these obligations. This potential exposure to physical settlement can significantly impact the Fund’s liquidity and market exposure, particularly in volatile market conditions.
Swap Risk: Swaps are subject to tracking risk because they may not be perfect substitutes for the instruments they are intended to hedge or replace. Over the counter swaps are subject to counterparty default. Leverage inherent in derivatives will tend to magnify the Fund’s losses. The swap agreements may reference standardized exchange-traded, FLEX, European Style or American Style put options contracts that are based on the values of the price returns of the Underlying Asset. that generate specific risks.
Counterparty Risk. Counterparty risk is the risk that a counterparty to a financial instrument held by the Fund or by a special purpose or structured vehicle invested in by the Fund may become insolvent or otherwise fail to perform its obligations, and the Fund may obtain no or limited recovery of its investment, and any recovery may be significantly delayed.
Over-the-Counter Market Risk. Securities and options traded in over-the-counter markets may trade less frequently and in limited volumes and thus exhibit more volatility and liquidity risk, and the prices paid by the Fund in over-the-counter transactions may include an undisclosed dealer markup. The Fund is also exposed to default by the over-the-counter option writer who may be unwilling or unable to perform its contractual obligations to the Fund.
In addition, a counterparty (the other party to a transaction or an agreement or the party with whom the Fund executes transactions) to a transaction (including repurchase transaction) with the Fund may be unable or unwilling to make timely principal, interest or settlement payments, or otherwise honor its obligations.
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| GraniteShares Autocallable AMZN ETF | Autocallable Structure Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Autocallable Structure Risk. The Fund’s returns are correlated to the performance of a theoretical portfolio of autocallables. Autocallables have specific structural features that may be unfamiliar to many investors:
Contingent Income Risk. Coupon payments from autocallables are not guaranteed and will not be made if the Underlying Asset falls below the Coupon Barrier on observation dates. This means the Fund may generate significantly less income than anticipated during market downturns. The expected absence of future coupon payments over the term of an autocallable could materially affect its value.
Early Redemption Risk. Autocallables may be called before their scheduled maturity if the Underlying Asset reaches or exceeds the Autocallable Barrier on observation dates. This automatic early redemption could force reinvestment of that portion of the portfolio at lower rates if market yields have declined.
Barrier Risk. If the Underlying Asset falls below the Maturity Barrier at the maturity of an autocallable, that portion of the portfolio will be fully exposed to the negative performance of the Underlying Asset from its initial level. For example, if the Underlying Asset has declined 45% at maturity of a particular autocallable, the portfolio allocated to that autocallable would lose 45% of its value. This conditional protection creates a binary outcome that can result in sudden, significant losses if barriers are breached.
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| GraniteShares Autocallable AMZN ETF | Calculation Methodology Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Calculation Methodology Risk. Autocallables rely on complex calculation methodologies that may not perform as expected under certain market conditions.
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| GraniteShares Autocallable AMZN ETF | Distribution Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective, the Fund seeks to provide current monthly income. There is no assurance that the Fund will make a distribution in any given month. If the Fund makes distributions, the amounts of such distributions will likely vary greatly from one distribution to the next. Additionally, the monthly distributions, if any, may consist of returns of capital, which would decrease the Fund’s NAV and trading price over time. As a result, an investor may suffer significant losses to their investment.
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| GraniteShares Autocallable AMZN ETF | NAV Erosion Risk Due to Distributions [Member] | |||||||||||||||||||
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| GraniteShares Autocallable AMZN ETF | Option Market Liquidity Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Option Market Liquidity Risk. Liquidity risk exists when particular investments are difficult to purchase or sell. The Fund’s investments in illiquid investments may reduce the returns of the Fund because it may be unable to sell the illiquid investments at an advantageous time or price.
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| GraniteShares Autocallable AMZN ETF | Laddered Portfolio Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Laddered Portfolio Risk. A laddered portfolio strategy may not perform as expected if market conditions remain unfavorable over an extended period, multiple autocallable instruments may experience losses simultaneously and/or the reallocation across autocallable instruments may result in suboptimal entry points during rapidly changing markets. A portfolio of autocallables providing exposure to the same Underlying Asset may not be homogeneously affected by a change in that Underlying Asset price as the impact of such change may depend on the tenor of each autocallable. Depending on market conditions, requests to create and/or redeem shares in the Fund may result in the average tenor of the portfolio of autocallables held by the Fund to deviate from the average tenor the Fund intends to achieve.
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| GraniteShares Autocallable AMZN ETF | Concentration Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Concentration Risk. To the extent that the Underlying Asset concentrates its investments in a particular industry, the Fund will be subject to the risks associated with that industry.
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| GraniteShares Autocallable AMZN ETF | ETF Risks [Member] | |||||||||||||||||||
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| Risk [Text Block] | ETF Risks.
Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that are authorized to purchase and redeem Shares directly from the Fund (known as “Authorized Participants” or “APs”). There are a limited number of financial institutions that post collateral for certain trades on an agency basis (i.e. on behalf of other market participants). In such circumstances, the Fund’s market price may be significantly different than its underlying net asset value. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services; or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
Cash Redemption Risk. The Fund currently expects to effect a significant portion of its creations and redemptions for cash, rather than in-kind securities. Paying redemption proceeds in cash rather than through in-kind delivery of portfolio securities may require the Fund to dispose of or sell portfolio securities or other assets at an inopportune time to obtain the cash needed to meet redemption orders. This may cause the Fund to sell a security and recognize a capital gain or loss that might not have been incurred if it had made a redemption in-kind. As a result, the Fund may pay out higher or lower annual capital gains distributions than ETFs that redeem in-kind. The use of cash creations and redemptions may also cause the Fund’s Shares to trade in the market at greater bid-ask spreads or greater premiums or discounts to the Fund’s NAV. Furthermore, the Fund may not be able to execute cash transactions for creation and redemption purposes at the same price used to determine the Fund’s NAV. To the extent that the maximum additional charge for creation or redemption transactions is insufficient to cover the execution shortfall, the Fund’s performance could be negatively impacted.
Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid-ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.
Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant.
Trading. Although Shares are listed on a national securities exchange, such as The Nasdaq Stock Market, LLC (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that an active trading market for the Shares will develop or be maintained or that the Shares will trade with any volume, or at all, on any stock exchange. This risk may be greater for the Fund as it seeks to have exposure to a single underlying stock as opposed to a more diverse portfolio like a traditional pooled investment. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares. Shares trade on the Exchange at a market price that may be below, at or above the Fund’s NAV. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged. In the event of an unscheduled market close for options contracts that reference a single stock, such as the Underlying Asset’s securities being halted or a market wide closure, settlement prices will be determined by the procedures of the listing exchange of the options contracts. As a result, the Fund could be adversely affected and be unable to implement its investment strategies in the event of an unscheduled closing.
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| GraniteShares Autocallable AMZN ETF | High Portfolio Turnover Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | High Portfolio Turnover Risk. The Fund may actively and frequently trade all or a significant portion of the Fund’s holdings. A high portfolio turnover rate increases transaction costs, which may increase the Fund’s expenses. Frequent trading may also cause adverse tax consequences for investors in the Fund due to an increase in short-term capital gains.
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| GraniteShares Autocallable AMZN ETF | Inflation Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the present value of the Fund’s assets and distributions, if any, may decline.
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| GraniteShares Autocallable AMZN ETF | Liquidity Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Liquidity Risk. Some securities held by the Fund, including options contracts, may be difficult to sell or be illiquid, particularly during times of market turmoil. This risk is greater for the Fund as it will hold options contracts on a single security, and not a broader range of options contracts. Markets for securities or financial instruments could be disrupted by a number of events, including, but not limited to, an economic crisis, natural disasters, epidemics/pandemics, new legislation or regulatory changes inside or outside the United States. Illiquid securities may be difficult to value, especially in changing or volatile markets. If the Fund is forced to sell an illiquid security at an unfavorable time or price, the Fund may be adversely impacted. Certain market conditions or restrictions, such as market rules related to short sales, may prevent the Fund from limiting losses, realizing gains or achieving a high correlation with the Underlying Asset. There is no assurance that a security that is deemed liquid when purchased will continue to be liquid. Market illiquidity may cause losses for the Fund.
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| GraniteShares Autocallable AMZN ETF | Management Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Management Risk. The Fund is subject to management risk because it is an actively managed portfolio. In managing the Fund’s investment portfolio, the portfolio managers will apply investment techniques and risk analyses that may not produce the desired result. There can be no guarantee that the Fund will meet its investment objective.
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| GraniteShares Autocallable AMZN ETF | Money Market Instrument Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Repurchase agreements are contracts in which a seller of securities agrees to buy the securities back at a specified time and price. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments, including money market funds, may lose money through fees or other means.
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| GraniteShares Autocallable AMZN ETF | New Fund Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | New Fund Risk. The Fund is a recently organized management investment company with no operating history. As a result, prospective investors do not have a track record or history on which to base their investment decisions.
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| GraniteShares Autocallable AMZN ETF | Non-Diversification Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Non-Diversification Risk. Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer or a smaller number of issuers than if it was a diversified fund. As a result, a decline in the value of an investment in a single issuer or a smaller number of issuers could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio.
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| GraniteShares Autocallable AMZN ETF | Operational Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Operational Risk. The Fund is subject to risks arising from various operational factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund relies on third-parties for a range of services, including custody. Any delay or failure relating to engaging or maintaining such service providers may affect the Fund’s ability to meet its investment objective. Although the Fund and the Adviser seek to reduce these operational risks through controls and procedures, there is no way to completely protect against such risks.
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| GraniteShares Autocallable AMZN ETF | Recent Market Events Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Recent Market Events Risk. U.S. and international markets have experienced significant periods of volatility in recent years due to a number of economic, political and global macro factors, including uncertainty regarding interest rates and inflation, rising government debt in the U.S. and elsewhere, political events, changes in trade policy and armed conflict. Public health emergencies, such as the COVID-19 pandemic, have in the past caused, and may in the future cause, disruptions to business operations and supply chains, reduced consumer demand and significant market volatility. Armed conflict, including the conflict between Russia and Ukraine and conflicts in the Middle East, has caused, and could continue to cause, loss of life and severe adverse effects on regional and global economies and on the markets for certain securities and commodities. The U.S., the European Union and other countries have imposed, and may impose additional, sanctions and other restrictive measures on certain countries, individuals and companies, which could adversely affect the issuers, markets and economies concerned. In addition, the U.S. has imposed, and may continue to impose, tariffs and other trade barriers, and other countries have imposed or may impose retaliatory measures. Trade disputes between the U.S. and other countries could result in additional tariffs, trade barriers and/or investment restrictions. These and other events could adversely affect the Fund’s performance, and their duration and full effects cannot be predicted.
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| GraniteShares Autocallable AMZN ETF | Single Issuer Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Single Issuer Risk. Issuer-specific attributes may cause an investment in the Fund to be more volatile than a traditional pooled investment vehicle which diversifies risk or the market generally. The value of the Fund, which focuses on an individual security (the Underlying Asset), may be more volatile than a traditional pooled investment or the market as a whole and may perform differently from the value of a traditional pooled investment or the market as a whole.
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| GraniteShares Autocallable AMZN ETF | Tax Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Tax Risk. The Fund intends to elect and to qualify each year to be treated as a RIC under Subchapter M of the Code. As a RIC, the Fund will not be subject to U.S. federal income tax on the portion of its net investment income and net capital gain that it distributes to Shareholders, provided that it satisfies certain requirements of the Code. If the Fund does not qualify as a RIC for any taxable year and certain relief provisions are not available, the Fund’s taxable income will be subject to tax at the Fund level and to a further tax at the shareholder level when such income is distributed. To comply with the asset diversification test applicable to a RIC, the Fund will attempt to ensure that the value of the derivatives it holds never exceed 25% of the total value of Fund assets at the close of any quarter. If the Fund’s investments in the derivatives were to exceed 25% of the Fund’s total assets at the end of a tax quarter, the Fund, generally, has a grace period to cure such lack of compliance. If the Fund fails to timely cure, it may no longer be eligible to be treated as a RIC. In addition, distributions received by the Fund from the Underlying Asset may generate “bad income” that could prevent the Fund from meeting the “Income Requirement” of Subchapter M of the Code, which may cause the Fund to fail to qualify as a RIC. The Fund intends to treat any income it may derive from the options and swap contracts as “qualifying income” under the provisions of the Code applicable to RICs. If the income is not qualifying income the Fund may lose its status as a RIC. The Fund will, for each year, distribute substantially all of its net investment income and net capital gains.
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| GraniteShares Autocallable AMZN ETF | Investing In U.S. Equities Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Investing in U.S. Equities Risk. Investing in U.S. issuers subjects the Fund to legal, regulatory, political, currency, security, and economic risks that are specific to the U.S. Certain changes in the U.S., such as a weakening of the U.S. economy or a decline in its financial markets, may have an adverse effect on U.S. issuers.
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| GraniteShares Autocallable AMZN ETF | Affiliated Etfs Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Affiliated ETFs Risk. The Fund may invest in equity securities of other ETFs for which the Adviser serves as investment adviser. It is possible that a conflict of interest may arise. Additionally, to the extent the Fund invests in the securities of another affiliated ETF, the Fund will be subject to the investment risks of the ETF. Shareholders of the Fund are subject to duplicative expenses to the extent of the Fund’s investment in any affiliated ETF. Finally, the shares of the ETFs in which the Fund may invest will be listed on a national securities exchange and the Fund will purchase or sell these shares on the secondary market at its current market price, which may be more or less than its net asset value per share.
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| GraniteShares Autocallable AMZN ETF | Box Spread E T F Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Box Spread ETF Risk. The Fund may invest in LBOX, an affiliated ETF advised by GraniteShares Advisors LLC, the Fund’s investment adviser, that employs a market-neutral box spread strategy to generate short-term, fixed-income-like returns. Box spread positions involve simultaneous long and short synthetic options positions on the same reference asset and are structured to capture an implied financing rate. While box spreads are designed to be market-neutral and to generate a return approximating prevailing short-term interest rates, they are subject to execution risk, counterparty risk with respect to the options positions, and the risk that the implied financing rate embedded in the box spread diverges from prevailing market rates in periods of market stress. The Fund’s investments in LBOX are made pursuant to Section 12(d)(1)(G) of the 1940 Act, which imposes no percentage-of-assets limits on the Fund’s investment in an exchange-traded fund. Accordingly, the Fund could, at any time, hold a material allocation in LBOX. The Fund’s adviser faces a conflict of interest in allocating Fund assets to an affiliated fund such as LBOX; see “Affiliated ETFs Risk.”
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| GraniteShares Autocallable AMZN ETF | U.S. Government And U.S. Agency Obligations Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | U.S. Government and U.S. Agency Obligations Risk. The Fund may invest in securities issued by the U.S. government or its agencies or instrumentalities. U.S. Government obligations include securities issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, such as the U.S. Treasury. Payment of principal and interest on U.S. Government obligations may be backed by the full faith and credit of the United States or may be backed solely by the issuing or guaranteeing agency or instrumentality itself. In the latter case, the investor must look principally to the agency or instrumentality issuing or guaranteeing the obligation for ultimate repayment, which agency or instrumentality may be privately owned. There can be no assurance that the U.S. Government would provide financial support to its agencies or instrumentalities (including government-sponsored enterprises) where it is not obligated to do so.
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| GraniteShares Autocallable AMZN ETF | Fixed Income Securities Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Fixed Income Securities Risk. The market value of Fixed Income Securities will change in response to interest rate changes and other factors, such as changes in the effective maturities and credit ratings of fixed income investments. During periods of falling interest rates, the values of outstanding Fixed Income Securities and related financial instruments generally rise. Conversely, during periods of rising interest rates, the values of such securities and related financial instruments generally decline. Fixed Income Securities are also subject to credit risk.
Investments in Fixed Income Securities may also involve the following risks, depending on the instrument involved:
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| GraniteShares Autocallable APP ETF | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | PRINCIPAL RISKS OF INVESTING IN THE FUND
The principal risks of investing in the Fund are summarized below. As with any investment, there is a risk that you could lose all or a portion of your investment in the Fund. Each risk summarized below is considered a “principal risk” of investing in the Fund, regardless of the order in which it appears. Some or all of these risks may adversely affect the Fund’s net asset value per share (“NAV”), trading price, yield, total return and/or ability to meet its investment objectives. For more information about the risks of investing in the Fund, see the section in the Fund’s Prospectus titled “Additional Information About the Fund — Principal Risks of Investing in the Fund.”
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| GraniteShares Autocallable APP ETF | Underlying Asset Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Underlying Asset Risk. The performance of the Underlying Asset, and consequently the Fund’s performance, is subject to the risks of the software and information technology industry. The Underlying Asset is subject to many risks that can negatively impact its revenue and viability including, but are not limited to price volatility risk, management risk, inflation risk, global economic risk, growth risk, supply and demand risk, operations risk, regulatory risk, environmental risk, terrorism risk and the risk of natural disasters. The Underlying Asset performance may be affected by global markets and demand for its products and services, its ability to develop new products and services, inventory levels, supply chain issues, the performance of third-party software developers, system and network failures, privacy and cybersecurity breaches and changes in international and government regulations. Information technology companies are heavily dependent on patent and intellectual property rights, the loss or impairment of which may adversely affect profitability. Additionally, companies in the information technology industry may face dramatic and often unpredictable changes in growth rates and competition for the services of qualified personnel. The Fund’s daily returns may be affected by many factors but will depend on the performance and volatility of the Underlying Asset.
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| GraniteShares Autocallable APP ETF | Derivatives Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Derivatives Risk. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds, interest rates or indexes. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other ordinary investments, including risk related to the market, imperfect correlation with underlying investments, higher price volatility, lack of availability, counterparty risk, liquidity, valuation and legal restrictions. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. The use of derivatives may result in larger losses or smaller gains than directly investing in securities. When the Fund uses derivatives, there may be an imperfect correlation between the value of the Underlying Asset and the derivative, which may prevent the Fund from achieving its investment objectives. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of those amounts initially invested. In addition, the Fund’s investments in derivatives are subject to the following risks:
Options Contracts. The use of options contracts involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which are affected by fiscal and monetary policies and by national and international political, changes in the actual or implied volatility or the reference asset, the time remaining until the expiration of the option contract and economic events. For the Fund, in particular, the value of the options contracts in which it invests is substantially influenced by the value of the Underlying Asset. Selling put options exposes the Fund to the risk of potential loss if the market value of the Underlying Asset falls below the strike price before the option expires. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to such date, the value of an option generally does not increase or decrease at the same rate at the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the underlying instrument, and there may at times not be a liquid secondary market for certain options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. Additionally, the Fund’s practice of “rolling” may cause the Fund to experience losses if the expiring contracts do not generate proceeds enough to cover the costs of entering into new options contracts. Rolling refers to the practice of closing out one options position and opening another with a different expiration date and/or a different strike price. Further, if an option is exercised, the seller (writer) of a put option is obligated to purchase the underlying asset at the strike price, which can result in significant financial and regulatory obligations for the Fund if the market value of the asset has fallen substantially. Furthermore, when the Fund seeks to trade out of puts, especially near expiration, there is an added risk that the Fund may be required to allocate resources unexpectedly to fulfill these obligations. This potential exposure to physical settlement can significantly impact the Fund’s liquidity and market exposure, particularly in volatile market conditions.
Swap Risk: Swaps are subject to tracking risk because they may not be perfect substitutes for the instruments they are intended to hedge or replace. Over the counter swaps are subject to counterparty default. Leverage inherent in derivatives will tend to magnify the Fund’s losses. The swap agreements may reference standardized exchange-traded, FLEX, European Style or American Style put options contracts that are based on the values of the price returns of the Underlying Asset. that generate specific risks.
Counterparty Risk. Counterparty risk is the risk that a counterparty to a financial instrument held by the Fund or by a special purpose or structured vehicle invested in by the Fund may become insolvent or otherwise fail to perform its obligations, and the Fund may obtain no or limited recovery of its investment, and any recovery may be significantly delayed.
Over-the-Counter Market Risk. Securities and options traded in over-the-counter markets may trade less frequently and in limited volumes and thus exhibit more volatility and liquidity risk, and the prices paid by the Fund in over-the-counter transactions may include an undisclosed dealer markup. The Fund is also exposed to default by the over-the-counter option writer who may be unwilling or unable to perform its contractual obligations to the Fund.
In addition, a counterparty (the other party to a transaction or an agreement or the party with whom the Fund executes transactions) to a transaction (including repurchase transaction) with the Fund may be unable or unwilling to make timely principal, interest or settlement payments, or otherwise honor its obligations.
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| GraniteShares Autocallable APP ETF | Autocallable Structure Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Autocallable Structure Risk. The Fund’s returns are correlated to the performance of a theoretical portfolio of autocallables. Autocallables have specific structural features that may be unfamiliar to many investors:
Contingent Income Risk. Coupon payments from autocallables are not guaranteed and will not be made if the Underlying Asset falls below the Coupon Barrier on observation dates. This means the Fund may generate significantly less income than anticipated during market downturns.
Early Redemption Risk. Autocallables may be called before their scheduled maturity if the Underlying Asset reaches or exceeds the Autocallable Barrier on observation dates. This automatic early redemption could force reinvestment of that portion of the portfolio at lower rates if market yields have declined.
Barrier Risk. If the Underlying Asset falls below the Maturity Barrier at the maturity of an autocallable, that portion of the portfolio will be fully exposed to the negative performance of the Underlying Asset from its initial level. For example, if the Underlying Asset has declined 45% at maturity of a particular autocallable, the portfolio allocated to that autocallable would lose 45% of its value. This conditional protection creates a binary outcome that can result in sudden, significant losses if barriers are breached.
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| GraniteShares Autocallable APP ETF | Calculation Methodology Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Calculation Methodology Risk. Autocallables rely on complex calculation methodologies that may not perform as expected under certain market conditions.
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| GraniteShares Autocallable APP ETF | Distribution Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective, the Fund seeks to provide current monthly income. There is no assurance that the Fund will make a distribution in any given month. If the Fund makes distributions, the amounts of such distributions will likely vary greatly from one distribution to the next. Additionally, the monthly distributions, if any, may consist of returns of capital, which would decrease the Fund’s NAV and trading price over time. As a result, an investor may suffer significant losses to their investment.
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| GraniteShares Autocallable APP ETF | NAV Erosion Risk Due to Distributions [Member] | |||||||||||||||||||
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| Risk [Text Block] |
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| GraniteShares Autocallable APP ETF | Option Market Liquidity Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Option Market Liquidity Risk. Liquidity risk exists when particular investments are difficult to purchase or sell. The Fund’s investments in illiquid investments may reduce the returns of the Fund because it may be unable to sell the illiquid investments at an advantageous time or price.
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| GraniteShares Autocallable APP ETF | Laddered Portfolio Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Laddered Portfolio Risk. A laddered portfolio strategy may not perform as expected if market conditions remain unfavorable over an extended period, multiple autocallable instruments may experience losses simultaneously and/or the reallocation across autocallable instruments may result in suboptimal entry points during rapidly changing markets.
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| GraniteShares Autocallable APP ETF | Concentration Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Concentration Risk. To the extent that the Underlying Asset concentrates its investments in a particular industry, the Fund will be subject to the risks associated with that industry.
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| GraniteShares Autocallable APP ETF | ETF Risks [Member] | |||||||||||||||||||
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| Risk [Text Block] | ETF Risks.
Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that are authorized to purchase and redeem Shares directly from the Fund (known as “Authorized Participants” or “APs”). There are a limited number of financial institutions that post collateral for certain trades on an agency basis (i.e. on behalf of other market participants). In such circumstances, the Fund’s market price may be significantly different than its underlying net asset value. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services; or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
Cash Redemption Risk. The Fund currently expects to effect a significant portion of its creations and redemptions for cash, rather than in-kind securities. Paying redemption proceeds in cash rather than through in-kind delivery of portfolio securities may require the Fund to dispose of or sell portfolio securities or other assets at an inopportune time to obtain the cash needed to meet redemption orders. This may cause the Fund to sell a security and recognize a capital gain or loss that might not have been incurred if it had made a redemption in-kind. As a result, the Fund may pay out higher or lower annual capital gains distributions than ETFs that redeem in-kind. The use of cash creations and redemptions may also cause the Fund’s Shares to trade in the market at greater bid-ask spreads or greater premiums or discounts to the Fund’s NAV. Furthermore, the Fund may not be able to execute cash transactions for creation and redemption purposes at the same price used to determine the Fund’s NAV. To the extent that the maximum additional charge for creation or redemption transactions is insufficient to cover the execution shortfall, the Fund’s performance could be negatively impacted.
Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid-ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.
Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant.
Trading. Although Shares are listed on a national securities exchange, such as The Nasdaq Stock Market, LLC (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that an active trading market for the Shares will develop or be maintained or that the Shares will trade with any volume, or at all, on any stock exchange. This risk may be greater for the Fund as it seeks to have exposure to a single underlying stock as opposed to a more diverse portfolio like a traditional pooled investment. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares. Shares trade on the Exchange at a market price that may be below, at or above the Fund’s NAV. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged. In the event of an unscheduled market close for options contracts that reference a single stock, such as the Underlying Asset’s securities being halted or a market wide closure, settlement prices will be determined by the procedures of the listing exchange of the options contracts. As a result, the Fund could be adversely affected and be unable to implement its investment strategies in the event of an unscheduled closing.
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| GraniteShares Autocallable APP ETF | High Portfolio Turnover Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | High Portfolio Turnover Risk. The Fund may actively and frequently trade all or a significant portion of the Fund’s holdings. A high portfolio turnover rate increases transaction costs, which may increase the Fund’s expenses. Frequent trading may also cause adverse tax consequences for investors in the Fund due to an increase in short-term capital gains.
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| GraniteShares Autocallable APP ETF | Inflation Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the present value of the Fund’s assets and distributions, if any, may decline.
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| GraniteShares Autocallable APP ETF | Liquidity Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Liquidity Risk. Some securities held by the Fund, including options contracts, may be difficult to sell or be illiquid, particularly during times of market turmoil. This risk is greater for the Fund as it will hold options contracts on a single security, and not a broader range of options contracts. Markets for securities or financial instruments could be disrupted by a number of events, including, but not limited to, an economic crisis, natural disasters, epidemics/pandemics, new legislation or regulatory changes inside or outside the United States. Illiquid securities may be difficult to value, especially in changing or volatile markets. If the Fund is forced to sell an illiquid security at an unfavorable time or price, the Fund may be adversely impacted. Certain market conditions or restrictions, such as market rules related to short sales, may prevent the Fund from limiting losses, realizing gains or achieving a high correlation with the Underlying Asset. There is no assurance that a security that is deemed liquid when purchased will continue to be liquid. Market illiquidity may cause losses for the Fund.
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| GraniteShares Autocallable APP ETF | Management Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Management Risk. The Fund is subject to management risk because it is an actively managed portfolio. In managing the Fund’s investment portfolio, the portfolio managers will apply investment techniques and risk analyses that may not produce the desired result. There can be no guarantee that the Fund will meet its investment objective.
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| GraniteShares Autocallable APP ETF | Money Market Instrument Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Repurchase agreements are contracts in which a seller of securities agrees to buy the securities back at a specified time and price. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments, including money market funds, may lose money through fees or other means.
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| GraniteShares Autocallable APP ETF | New Fund Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | New Fund Risk. The Fund is a recently organized management investment company with no operating history. As a result, prospective investors do not have a track record or history on which to base their investment decisions.
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| GraniteShares Autocallable APP ETF | Non-Diversification Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Non-Diversification Risk. Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer or a smaller number of issuers than if it was a diversified fund. As a result, a decline in the value of an investment in a single issuer or a smaller number of issuers could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio.
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| GraniteShares Autocallable APP ETF | Operational Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Operational Risk. The Fund is subject to risks arising from various operational factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund relies on third-parties for a range of services, including custody. Any delay or failure relating to engaging or maintaining such service providers may affect the Fund’s ability to meet its investment objective. Although the Fund and the Adviser seek to reduce these operational risks through controls and procedures, there is no way to completely protect against such risks.
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| GraniteShares Autocallable APP ETF | Recent Market Events Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Recent Market Events Risk. U.S. and international markets have experienced significant periods of volatility in recent years due to a number of economic, political and global macro factors, including uncertainty regarding interest rates and inflation, rising government debt in the U.S. and elsewhere, political events, changes in trade policy and armed conflict. Public health emergencies, such as the COVID-19 pandemic, have in the past caused, and may in the future cause, disruptions to business operations and supply chains, reduced consumer demand and significant market volatility. Armed conflict, including the conflict between Russia and Ukraine and conflicts in the Middle East, has caused, and could continue to cause, loss of life and severe adverse effects on regional and global economies and on the markets for certain securities and commodities. The U.S., the European Union and other countries have imposed, and may impose additional, sanctions and other restrictive measures on certain countries, individuals and companies, which could adversely affect the issuers, markets and economies concerned. In addition, the U.S. has imposed, and may continue to impose, tariffs and other trade barriers, and other countries have imposed or may impose retaliatory measures. Trade disputes between the U.S. and other countries could result in additional tariffs, trade barriers and/or investment restrictions. These and other events could adversely affect the Fund’s performance, and their duration and full effects cannot be predicted.
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| GraniteShares Autocallable APP ETF | Single Issuer Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Single Issuer Risk. Issuer-specific attributes may cause an investment in the Fund to be more volatile than a traditional pooled investment vehicle which diversifies risk or the market generally. The value of the Fund, which focuses on an individual security (the Underlying Asset), may be more volatile than a traditional pooled investment or the market as a whole and may perform differently from the value of a traditional pooled investment or the market as a whole.
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| GraniteShares Autocallable APP ETF | Tax Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Tax Risk. The Fund intends to elect and to qualify each year to be treated as a RIC under Subchapter M of the Code. As a RIC, the Fund will not be subject to U.S. federal income tax on the portion of its net investment income and net capital gain that it distributes to Shareholders, provided that it satisfies certain requirements of the Code. If the Fund does not qualify as a RIC for any taxable year and certain relief provisions are not available, the Fund’s taxable income will be subject to tax at the Fund level and to a further tax at the shareholder level when such income is distributed. To comply with the asset diversification test applicable to a RIC, the Fund will attempt to ensure that the value of the derivatives it holds never exceed 25% of the total value of Fund assets at the close of any quarter. If the Fund’s investments in the derivatives were to exceed 25% of the Fund’s total assets at the end of a tax quarter, the Fund, generally, has a grace period to cure such lack of compliance. If the Fund fails to timely cure, it may no longer be eligible to be treated as a RIC. In addition, distributions received by the Fund from the Underlying Asset may generate “bad income” that could prevent the Fund from meeting the “Income Requirement” of Subchapter M of the Code, which may cause the Fund to fail to qualify as a RIC. The Fund intends to treat any income it may derive from the options and swap contracts as “qualifying income” under the provisions of the Code applicable to RICs. If the income is not qualifying income the Fund may lose its status as a RIC. The Fund will, for each year, distribute substantially all of its net investment income and net capital gains.
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| GraniteShares Autocallable APP ETF | Investing In U.S. Equities Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Investing in U.S. Equities Risk. Investing in U.S. issuers subjects the Fund to legal, regulatory, political, currency, security, and economic risks that are specific to the U.S. Certain changes in the U.S., such as a weakening of the U.S. economy or a decline in its financial markets, may have an adverse effect on U.S. issuers.
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| GraniteShares Autocallable APP ETF | Affiliated Etfs Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Affiliated ETFs Risk. The Fund may invest in equity securities of other ETFs for which the Adviser serves as investment adviser. It is possible that a conflict of interest may arise. Additionally, to the extent the Fund invests in the securities of another affiliated ETF, the Fund will be subject to the investment risks of the ETF. Shareholders of the Fund are subject to duplicative expenses to the extent of the Fund’s investment in any affiliated ETF. Finally, the shares of the ETFs in which the Fund may invest will be listed on a national securities exchange and the Fund will purchase or sell these shares on the secondary market at its current market price, which may be more or less than its net asset value per share.
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| GraniteShares Autocallable APP ETF | Box Spread E T F Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Box Spread ETF Risk. The Fund may invest in LBOX, an affiliated ETF advised by GraniteShares Advisors LLC, the Fund’s investment adviser, that employs a market-neutral box spread strategy to generate short-term, fixed-income-like returns. Box spread positions involve simultaneous long and short synthetic options positions on the same reference asset and are structured to capture an implied financing rate. While box spreads are designed to be market-neutral and to generate a return approximating prevailing short-term interest rates, they are subject to execution risk, counterparty risk with respect to the options positions, and the risk that the implied financing rate embedded in the box spread diverges from prevailing market rates in periods of market stress. The Fund’s investments in LBOX are made pursuant to Section 12(d)(1)(G) of the 1940 Act, which imposes no percentage-of-assets limits on the Fund’s investment in an exchange-traded fund. Accordingly, the Fund could, at any time, hold a material allocation in LBOX. The Fund’s adviser faces a conflict of interest in allocating Fund assets to an affiliated fund such as LBOX; see “Affiliated ETFs Risk.”
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| GraniteShares Autocallable APP ETF | U.S. Government And U.S. Agency Obligations Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | U.S. Government and U.S. Agency Obligations Risk. The Fund may invest in securities issued by the U.S. government or its agencies or instrumentalities. U.S. Government obligations include securities issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, such as the U.S. Treasury. Payment of principal and interest on U.S. Government obligations may be backed by the full faith and credit of the United States or may be backed solely by the issuing or guaranteeing agency or instrumentality itself. In the latter case, the investor must look principally to the agency or instrumentality issuing or guaranteeing the obligation for ultimate repayment, which agency or instrumentality may be privately owned. There can be no assurance that the U.S. Government would provide financial support to its agencies or instrumentalities (including government-sponsored enterprises) where it is not obligated to do so.
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| GraniteShares Autocallable APP ETF | Fixed Income Securities Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Fixed Income Securities Risk. The market value of Fixed Income Securities will change in response to interest rate changes and other factors, such as changes in the effective maturities and credit ratings of fixed income investments. During periods of falling interest rates, the values of outstanding Fixed Income Securities and related financial instruments generally rise. Conversely, during periods of rising interest rates, the values of such securities and related financial instruments generally decline. Fixed Income Securities are also subject to credit risk.
Investments in Fixed Income Securities may also involve the following risks, depending on the instrument involved:
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| GraniteShares Autocallable AVGO ETF | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | PRINCIPAL RISKS OF INVESTING IN THE FUND
The principal risks of investing in the Fund are summarized below. As with any investment, there is a risk that you could lose all or a portion of your investment in the Fund. Each risk summarized below is considered a “principal risk” of investing in the Fund, regardless of the order in which it appears. Some or all of these risks may adversely affect the Fund’s net asset value per share (“NAV”), trading price, yield, total return and/or ability to meet its investment objectives. For more information about the risks of investing in the Fund, see the section in the Fund’s Prospectus titled “Additional Information About the Fund — Principal Risks of Investing in the Fund.”
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| GraniteShares Autocallable AVGO ETF | Underlying Asset Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Underlying Asset Risk. The performance of the Underlying Asset, and consequently the Fund’s performance, is subject to the risks of the information technology and semiconductor industries. The Underlying Asset is subject to many risks that can negatively impact its revenue and viability including, but are not limited to price volatility risk, management risk, inflation risk, global economic risk, growth risk, supply and demand risk, operations risk, regulatory risk, environmental risk, terrorism risk and the risk of natural disasters. The Underlying Asset performance may be affected by global markets and demand for its products and services, its ability to develop new products and services, inventory levels, supply chain issues, the performance of third-party software developers, system and network failures, privacy and cybersecurity breaches and changes in international and government regulations. Information technology companies are heavily dependent on patent and intellectual property rights, the loss or impairment of which may adversely affect profitability. Additionally, companies in the information technology industry may face dramatic and often unpredictable changes in growth rates and competition for the services of qualified personnel.
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| GraniteShares Autocallable AVGO ETF | Derivatives Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Derivatives Risk. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds, interest rates or indexes. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other ordinary investments, including risk related to the market, imperfect correlation with underlying investments, higher price volatility, lack of availability, counterparty risk, liquidity, valuation and legal restrictions. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. The use of derivatives may result in larger losses or smaller gains than directly investing in securities. When the Fund uses derivatives, there may be an imperfect correlation between the value of the Underlying Asset and the derivative, which may prevent the Fund from achieving its investment objectives. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of those amounts initially invested. In addition, the Fund’s investments in derivatives are subject to the following risks:
Options Contracts. The use of options contracts involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which are affected by fiscal and monetary policies and by national and international political, changes in the actual or implied volatility or the reference asset, the time remaining until the expiration of the option contract and economic events. For the Fund, in particular, the value of the options contracts in which it invests is substantially influenced by the value of the Underlying Asset. Selling put options exposes the Fund to the risk of potential loss if the market value of the Underlying Asset falls below the strike price before the option expires. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to such date, the value of an option generally does not increase or decrease at the same rate at the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the underlying instrument, and there may at times not be a liquid secondary market for certain options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. Additionally, the Fund’s practice of “rolling” may cause the Fund to experience losses if the expiring contracts do not generate proceeds enough to cover the costs of entering into new options contracts. Rolling refers to the practice of closing out one options position and opening another with a different expiration date and/or a different strike price. Further, if an option is exercised, the seller (writer) of a put option is obligated to purchase the underlying asset at the strike price, which can result in significant financial and regulatory obligations for the Fund if the market value of the asset has fallen substantially. Furthermore, when the Fund seeks to trade out of puts, especially near expiration, there is an added risk that the Fund may be required to allocate resources unexpectedly to fulfill these obligations. This potential exposure to physical settlement can significantly impact the Fund’s liquidity and market exposure, particularly in volatile market conditions.
Swap Risk: Swaps are subject to tracking risk because they may not be perfect substitutes for the instruments they are intended to hedge or replace. Over the counter swaps are subject to counterparty default. Leverage inherent in derivatives will tend to magnify the Fund’s losses. The swap agreements may reference standardized exchange-traded, FLEX, European Style or American Style put options contracts that are based on the values of the price returns of the Underlying Asset. that generate specific risks.
Counterparty Risk. Counterparty risk is the risk that a counterparty to a financial instrument held by the Fund or by a special purpose or structured vehicle invested in by the Fund may become insolvent or otherwise fail to perform its obligations, and the Fund may obtain no or limited recovery of its investment, and any recovery may be significantly delayed.
Over-the-Counter Market Risk. Securities and options traded in over-the-counter markets may trade less frequently and in limited volumes and thus exhibit more volatility and liquidity risk, and the prices paid by the Fund in over-the-counter transactions may include an undisclosed dealer markup. The Fund is also exposed to default by the over-the-counter option writer who may be unwilling or unable to perform its contractual obligations to the Fund.
In addition, a counterparty (the other party to a transaction or an agreement or the party with whom the Fund executes transactions) to a transaction (including repurchase transaction) with the Fund may be unable or unwilling to make timely principal, interest or settlement payments, or otherwise honor its obligations.
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| GraniteShares Autocallable AVGO ETF | Autocallable Structure Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Autocallable Structure Risk. The Fund’s returns are correlated to the performance of a theoretical portfolio of autocallables. Autocallables have specific structural features that may be unfamiliar to many investors:
Contingent Income Risk. Coupon payments from autocallables are not guaranteed and will not be made if the Underlying Asset falls below the Coupon Barrier on observation dates. This means the Fund may generate significantly less income than anticipated during market downturns. The expected absence of future coupon payments over the term of an autocallable could materially affect its value.
Early Redemption Risk. Autocallables may be called before their scheduled maturity if the Underlying Asset reaches or exceeds the Autocallable Barrier on observation dates. This automatic early redemption could force reinvestment of that portion of the portfolio at lower rates if market yields have declined.
Barrier Risk. If the Underlying Asset falls below the Maturity Barrier at the maturity of an autocallable, that portion of the portfolio will be fully exposed to the negative performance of the Underlying Asset from its initial level. For example, if the Underlying Asset has declined 45% at maturity of a particular autocallable, the portfolio allocated to that autocallable would lose 45% of its value. This conditional protection creates a binary outcome that can result in sudden, significant losses if barriers are breached.
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| GraniteShares Autocallable AVGO ETF | Calculation Methodology Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Calculation Methodology Risk. Autocallables rely on complex calculation methodologies that may not perform as expected under certain market conditions.
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| GraniteShares Autocallable AVGO ETF | Distribution Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective, the Fund seeks to provide current monthly income. There is no assurance that the Fund will make a distribution in any given month. If the Fund makes distributions, the amounts of such distributions will likely vary greatly from one distribution to the next. Additionally, the monthly distributions, if any, may consist of returns of capital, which would decrease the Fund’s NAV and trading price over time. As a result, an investor may suffer significant losses to their investment.
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| GraniteShares Autocallable AVGO ETF | NAV Erosion Risk Due to Distributions [Member] | |||||||||||||||||||
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| Risk [Text Block] |
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| GraniteShares Autocallable AVGO ETF | Option Market Liquidity Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Option Market Liquidity Risk. Liquidity risk exists when particular investments are difficult to purchase or sell. The Fund’s investments in illiquid investments may reduce the returns of the Fund because it may be unable to sell the illiquid investments at an advantageous time or price.
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| GraniteShares Autocallable AVGO ETF | Laddered Portfolio Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Laddered Portfolio Risk. A laddered portfolio strategy may not perform as expected if market conditions remain unfavorable over an extended period, multiple autocallable instruments may experience losses simultaneously and/or the reallocation across autocallable instruments may result in suboptimal entry points during rapidly changing markets. A portfolio of autocallables providing exposure to the same Underlying Asset may not be homogeneously affected by a change in that Underlying Asset price as the impact of such change may depend on the tenor of each autocallable. Depending on market conditions, requests to create and/or redeem shares in the Fund may result in the average tenor of the portfolio of autocallables held by the Fund to deviate from the average tenor the Fund intends to achieve.
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| GraniteShares Autocallable AVGO ETF | Concentration Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Concentration Risk. To the extent that the Underlying Asset concentrates its investments in a particular industry, the Fund will be subject to the risks associated with that industry.
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| GraniteShares Autocallable AVGO ETF | ETF Risks [Member] | |||||||||||||||||||
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| Risk [Text Block] | ETF Risks.
Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that are authorized to purchase and redeem Shares directly from the Fund (known as “Authorized Participants” or “APs”). There are a limited number of financial institutions that post collateral for certain trades on an agency basis (i.e. on behalf of other market participants). In such circumstances, the Fund’s market price may be significantly different than its underlying net asset value. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services; or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
Cash Redemption Risk. The Fund currently expects to effect a significant portion of its creations and redemptions for cash, rather than in-kind securities. Paying redemption proceeds in cash rather than through in-kind delivery of portfolio securities may require the Fund to dispose of or sell portfolio securities or other assets at an inopportune time to obtain the cash needed to meet redemption orders. This may cause the Fund to sell a security and recognize a capital gain or loss that might not have been incurred if it had made a redemption in-kind. As a result, the Fund may pay out higher or lower annual capital gains distributions than ETFs that redeem in-kind. The use of cash creations and redemptions may also cause the Fund’s Shares to trade in the market at greater bid-ask spreads or greater premiums or discounts to the Fund’s NAV. Furthermore, the Fund may not be able to execute cash transactions for creation and redemption purposes at the same price used to determine the Fund’s NAV. To the extent that the maximum additional charge for creation or redemption transactions is insufficient to cover the execution shortfall, the Fund’s performance could be negatively impacted.
Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid-ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.
Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant.
Trading. Although Shares are listed on a national securities exchange, such as The Nasdaq Stock Market, LLC (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that an active trading market for the Shares will develop or be maintained or that the Shares will trade with any volume, or at all, on any stock exchange. This risk may be greater for the Fund as it seeks to have exposure to a single underlying stock as opposed to a more diverse portfolio like a traditional pooled investment. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares. Shares trade on the Exchange at a market price that may be below, at or above the Fund’s NAV. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged. In the event of an unscheduled market close for options contracts that reference a single stock, such as the Underlying Asset’s securities being halted or a market wide closure, settlement prices will be determined by the procedures of the listing exchange of the options contracts. As a result, the Fund could be adversely affected and be unable to implement its investment strategies in the event of an unscheduled closing.
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| GraniteShares Autocallable AVGO ETF | High Portfolio Turnover Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | High Portfolio Turnover Risk. The Fund may actively and frequently trade all or a significant portion of the Fund’s holdings. A high portfolio turnover rate increases transaction costs, which may increase the Fund’s expenses. Frequent trading may also cause adverse tax consequences for investors in the Fund due to an increase in short-term capital gains.
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| GraniteShares Autocallable AVGO ETF | Inflation Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the present value of the Fund’s assets and distributions, if any, may decline.
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| GraniteShares Autocallable AVGO ETF | Liquidity Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Liquidity Risk. Some securities held by the Fund, including options contracts, may be difficult to sell or be illiquid, particularly during times of market turmoil. This risk is greater for the Fund as it will hold options contracts on a single security, and not a broader range of options contracts. Markets for securities or financial instruments could be disrupted by a number of events, including, but not limited to, an economic crisis, natural disasters, epidemics/pandemics, new legislation or regulatory changes inside or outside the United States. Illiquid securities may be difficult to value, especially in changing or volatile markets. If the Fund is forced to sell an illiquid security at an unfavorable time or price, the Fund may be adversely impacted. Certain market conditions or restrictions, such as market rules related to short sales, may prevent the Fund from limiting losses, realizing gains or achieving a high correlation with the Underlying Asset. There is no assurance that a security that is deemed liquid when purchased will continue to be liquid. Market illiquidity may cause losses for the Fund.
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| GraniteShares Autocallable AVGO ETF | Management Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Management Risk. The Fund is subject to management risk because it is an actively managed portfolio. In managing the Fund’s investment portfolio, the portfolio managers will apply investment techniques and risk analyses that may not produce the desired result. There can be no guarantee that the Fund will meet its investment objective.
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| GraniteShares Autocallable AVGO ETF | Money Market Instrument Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Repurchase agreements are contracts in which a seller of securities agrees to buy the securities back at a specified time and price. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments, including money market funds, may lose money through fees or other means.
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| GraniteShares Autocallable AVGO ETF | New Fund Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | New Fund Risk. The Fund is a recently organized management investment company with no operating history. As a result, prospective investors do not have a track record or history on which to base their investment decisions.
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| GraniteShares Autocallable AVGO ETF | Non-Diversification Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Non-Diversification Risk. Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer or a smaller number of issuers than if it was a diversified fund. As a result, a decline in the value of an investment in a single issuer or a smaller number of issuers could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio.
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| GraniteShares Autocallable AVGO ETF | Operational Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Operational Risk. The Fund is subject to risks arising from various operational factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund relies on third-parties for a range of services, including custody. Any delay or failure relating to engaging or maintaining such service providers may affect the Fund’s ability to meet its investment objective. Although the Fund and the Adviser seek to reduce these operational risks through controls and procedures, there is no way to completely protect against such risks.
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| GraniteShares Autocallable AVGO ETF | Recent Market Events Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Recent Market Events Risk. U.S. and international markets have experienced significant periods of volatility in recent years due to a number of economic, political and global macro factors, including uncertainty regarding interest rates and inflation, rising government debt in the U.S. and elsewhere, political events, changes in trade policy and armed conflict. Public health emergencies, such as the COVID-19 pandemic, have in the past caused, and may in the future cause, disruptions to business operations and supply chains, reduced consumer demand and significant market volatility. Armed conflict, including the conflict between Russia and Ukraine and conflicts in the Middle East, has caused, and could continue to cause, loss of life and severe adverse effects on regional and global economies and on the markets for certain securities and commodities. The U.S., the European Union and other countries have imposed, and may impose additional, sanctions and other restrictive measures on certain countries, individuals and companies, which could adversely affect the issuers, markets and economies concerned. In addition, the U.S. has imposed, and may continue to impose, tariffs and other trade barriers, and other countries have imposed or may impose retaliatory measures. Trade disputes between the U.S. and other countries could result in additional tariffs, trade barriers and/or investment restrictions. These and other events could adversely affect the Fund’s performance, and their duration and full effects cannot be predicted.
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| GraniteShares Autocallable AVGO ETF | Single Issuer Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Single Issuer Risk. Issuer-specific attributes may cause an investment in the Fund to be more volatile than a traditional pooled investment vehicle which diversifies risk or the market generally. The value of the Fund, which focuses on an individual security (the Underlying Asset), may be more volatile than a traditional pooled investment or the market as a whole and may perform differently from the value of a traditional pooled investment or the market as a whole.
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| GraniteShares Autocallable AVGO ETF | Tax Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Tax Risk. The Fund intends to elect and to qualify each year to be treated as a RIC under Subchapter M of the Code. As a RIC, the Fund will not be subject to U.S. federal income tax on the portion of its net investment income and net capital gain that it distributes to Shareholders, provided that it satisfies certain requirements of the Code. If the Fund does not qualify as a RIC for any taxable year and certain relief provisions are not available, the Fund’s taxable income will be subject to tax at the Fund level and to a further tax at the shareholder level when such income is distributed. To comply with the asset diversification test applicable to a RIC, the Fund will attempt to ensure that the value of the derivatives it holds never exceed 25% of the total value of Fund assets at the close of any quarter. If the Fund’s investments in the derivatives were to exceed 25% of the Fund’s total assets at the end of a tax quarter, the Fund, generally, has a grace period to cure such lack of compliance. If the Fund fails to timely cure, it may no longer be eligible to be treated as a RIC. In addition, distributions received by the Fund from the Underlying Asset may generate “bad income” that could prevent the Fund from meeting the “Income Requirement” of Subchapter M of the Code, which may cause the Fund to fail to qualify as a RIC. The Fund intends to treat any income it may derive from the options and swap contracts as “qualifying income” under the provisions of the Code applicable to RICs. If the income is not qualifying income the Fund may lose its status as a RIC. The Fund will, for each year, distribute substantially all of its net investment income and net capital gains.
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| GraniteShares Autocallable AVGO ETF | Investing In U.S. Equities Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Investing in U.S. Equities Risk. Investing in U.S. issuers subjects the Fund to legal, regulatory, political, currency, security, and economic risks that are specific to the U.S. Certain changes in the U.S., such as a weakening of the U.S. economy or a decline in its financial markets, may have an adverse effect on U.S. issuers.
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| GraniteShares Autocallable AVGO ETF | Affiliated Etfs Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Affiliated ETFs Risk. The Fund may invest in equity securities of other ETFs for which the Adviser serves as investment adviser. It is possible that a conflict of interest may arise. Additionally, to the extent the Fund invests in the securities of another affiliated ETF, the Fund will be subject to the investment risks of the ETF. Shareholders of the Fund are subject to duplicative expenses to the extent of the Fund’s investment in any affiliated ETF. Finally, the shares of the ETFs in which the Fund may invest will be listed on a national securities exchange and the Fund will purchase or sell these shares on the secondary market at its current market price, which may be more or less than its net asset value per share.
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| GraniteShares Autocallable AVGO ETF | Box Spread E T F Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Box Spread ETF Risk. The Fund may invest in LBOX, an affiliated ETF advised by GraniteShares Advisors LLC, the Fund’s investment adviser, that employs a market-neutral box spread strategy to generate short-term, fixed-income-like returns. Box spread positions involve simultaneous long and short synthetic options positions on the same reference asset and are structured to capture an implied financing rate. While box spreads are designed to be market-neutral and to generate a return approximating prevailing short-term interest rates, they are subject to execution risk, counterparty risk with respect to the options positions, and the risk that the implied financing rate embedded in the box spread diverges from prevailing market rates in periods of market stress. The Fund’s investments in LBOX are made pursuant to Section 12(d)(1)(G) of the 1940 Act, which imposes no percentage-of-assets limits on the Fund’s investment in an exchange-traded fund. Accordingly, the Fund could, at any time, hold a material allocation in LBOX. The Fund’s adviser faces a conflict of interest in allocating Fund assets to an affiliated fund such as LBOX; see “Affiliated ETFs Risk.”
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| GraniteShares Autocallable AVGO ETF | U.S. Government And U.S. Agency Obligations Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | U.S. Government and U.S. Agency Obligations Risk. The Fund may invest in securities issued by the U.S. government or its agencies or instrumentalities. U.S. Government obligations include securities issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, such as the U.S. Treasury. Payment of principal and interest on U.S. Government obligations may be backed by the full faith and credit of the United States or may be backed solely by the issuing or guaranteeing agency or instrumentality itself. In the latter case, the investor must look principally to the agency or instrumentality issuing or guaranteeing the obligation for ultimate repayment, which agency or instrumentality may be privately owned. There can be no assurance that the U.S. Government would provide financial support to its agencies or instrumentalities (including government-sponsored enterprises) where it is not obligated to do so.
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| GraniteShares Autocallable AVGO ETF | Fixed Income Securities Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Fixed Income Securities Risk. The market value of Fixed Income Securities will change in response to interest rate changes and other factors, such as changes in the effective maturities and credit ratings of fixed income investments. During periods of falling interest rates, the values of outstanding Fixed Income Securities and related financial instruments generally rise. Conversely, during periods of rising interest rates, the values of such securities and related financial instruments generally decline. Fixed Income Securities are also subject to credit risk.
Investments in Fixed Income Securities may also involve the following risks, depending on the instrument involved:
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| GraniteShares Autocallable BABA ETF | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | PRINCIPAL RISKS OF INVESTING IN THE FUND
The principal risks of investing in the Fund are summarized below. As with any investment, there is a risk that you could lose all or a portion of your investment in the Fund. Each risk summarized below is considered a “principal risk” of investing in the Fund, regardless of the order in which it appears. Some or all of these risks may adversely affect the Fund’s net asset value per share (“NAV”), trading price, yield, total return and/or ability to meet its investment objectives. For more information about the risks of investing in the Fund, see the section in the Fund’s Prospectus titled “Additional Information About the Fund — Principal Risks of Investing in the Fund.”
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| GraniteShares Autocallable BABA ETF | Underlying Asset Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Underlying Asset Risk. The Underlying Asset is subject to many risks that can negatively impact its revenue and viability including, but are not limited to price volatility risk, management risk, inflation risk, global economic risk, growth risk, supply and demand risk, operations risk, regulatory risk, environmental risk, terrorism risk and the risk of natural disasters. The Underlying Asset performance may be affected by trends in commerce, and cloud computing, changes in the economic conditions in China and globally, international trade policies, the company’s investment transactions and changes in governmental regulations. The Fund’s daily returns may be affected by many factors but will depend on the performance and volatility of the Underlying Asset.
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| GraniteShares Autocallable BABA ETF | Derivatives Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Derivatives Risk. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds, interest rates or indexes. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other ordinary investments, including risk related to the market, imperfect correlation with underlying investments, higher price volatility, lack of availability, counterparty risk, liquidity, valuation and legal restrictions. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. The use of derivatives may result in larger losses or smaller gains than directly investing in securities. When the Fund uses derivatives, there may be an imperfect correlation between the value of the Underlying Asset and the derivative, which may prevent the Fund from achieving its investment objectives. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of those amounts initially invested. In addition, the Fund’s investments in derivatives are subject to the following risks:
Options Contracts. The use of options contracts involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which are affected by fiscal and monetary policies and by national and international political, changes in the actual or implied volatility or the reference asset, the time remaining until the expiration of the option contract and economic events. For the Fund, in particular, the value of the options contracts in which it invests is substantially influenced by the value of the Underlying Asset. Selling put options exposes the Fund to the risk of potential loss if the market value of the Underlying Asset falls below the strike price before the option expires. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to such date, the value of an option generally does not increase or decrease at the same rate at the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the underlying instrument, and there may at times not be a liquid secondary market for certain options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. Additionally, the Fund’s practice of “rolling” may cause the Fund to experience losses if the expiring contracts do not generate proceeds enough to cover the costs of entering into new options contracts. Rolling refers to the practice of closing out one options position and opening another with a different expiration date and/or a different strike price. Further, if an option is exercised, the seller (writer) of a put option is obligated to purchase the underlying asset at the strike price, which can result in significant financial and regulatory obligations for the Fund if the market value of the asset has fallen substantially. Furthermore, when the Fund seeks to trade out of puts, especially near expiration, there is an added risk that the Fund may be required to allocate resources unexpectedly to fulfill these obligations. This potential exposure to physical settlement can significantly impact the Fund’s liquidity and market exposure, particularly in volatile market conditions.
Swap Risk: Swaps are subject to tracking risk because they may not be perfect substitutes for the instruments they are intended to hedge or replace. Over the counter swaps are subject to counterparty default. Leverage inherent in derivatives will tend to magnify the Fund’s losses. The swap agreements may reference standardized exchange-traded, FLEX, European Style or American Style put options contracts that are based on the values of the price returns of the Underlying Asset. that generate specific risks.
Counterparty Risk. Counterparty risk is the risk that a counterparty to a financial instrument held by the Fund or by a special purpose or structured vehicle invested in by the Fund may become insolvent or otherwise fail to perform its obligations, and the Fund may obtain no or limited recovery of its investment, and any recovery may be significantly delayed.
Over-the-Counter Market Risk. Securities and options traded in over-the-counter markets may trade less frequently and in limited volumes and thus exhibit more volatility and liquidity risk, and the prices paid by the Fund in over-the-counter transactions may include an undisclosed dealer markup. The Fund is also exposed to default by the over-the-counter option writer who may be unwilling or unable to perform its contractual obligations to the Fund.
In addition, a counterparty (the other party to a transaction or an agreement or the party with whom the Fund executes transactions) to a transaction (including repurchase transaction) with the Fund may be unable or unwilling to make timely principal, interest or settlement payments, or otherwise honor its obligations.
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| GraniteShares Autocallable BABA ETF | Autocallable Structure Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Autocallable Structure Risk. The Fund’s returns are correlated to the performance of a theoretical portfolio of autocallables. Autocallables have specific structural features that may be unfamiliar to many investors:
Contingent Income Risk. Coupon payments from autocallables are not guaranteed and will not be made if the Underlying Asset falls below the Coupon Barrier on observation dates. This means the Fund may generate significantly less income than anticipated during market downturns. The expected absence of future coupon payments over the term of an autocallable could materially affect its value.
Early Redemption Risk. Autocallables may be called before their scheduled maturity if the Underlying Asset reaches or exceeds the Autocallable Barrier on observation dates. This automatic early redemption could force reinvestment of that portion of the portfolio at lower rates if market yields have declined.
Barrier Risk. If the Underlying Asset falls below the Maturity Barrier at the maturity of an autocallable, that portion of the portfolio will be fully exposed to the negative performance of the Underlying Asset from its initial level. For example, if the Underlying Asset has declined 45% at maturity of a particular autocallable, the portfolio allocated to that autocallable would lose 45% of its value. This conditional protection creates a binary outcome that can result in sudden, significant losses if barriers are breached.
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| GraniteShares Autocallable BABA ETF | Calculation Methodology Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Calculation Methodology Risk. Autocallables rely on complex calculation methodologies that may not perform as expected under certain market conditions.
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| GraniteShares Autocallable BABA ETF | Distribution Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective, the Fund seeks to provide current monthly income. There is no assurance that the Fund will make a distribution in any given month. If the Fund makes distributions, the amounts of such distributions will likely vary greatly from one distribution to the next. Additionally, the monthly distributions, if any, may consist of returns of capital, which would decrease the Fund’s NAV and trading price over time. As a result, an investor may suffer significant losses to their investment.
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| GraniteShares Autocallable BABA ETF | NAV Erosion Risk Due to Distributions [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] |
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| GraniteShares Autocallable BABA ETF | Option Market Liquidity Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Option Market Liquidity Risk. Liquidity risk exists when particular investments are difficult to purchase or sell. The Fund’s investments in illiquid investments may reduce the returns of the Fund because it may be unable to sell the illiquid investments at an advantageous time or price.
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| GraniteShares Autocallable BABA ETF | Laddered Portfolio Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Laddered Portfolio Risk. A laddered portfolio strategy may not perform as expected if market conditions remain unfavorable over an extended period, multiple autocallable instruments may experience losses simultaneously and/or the reallocation across autocallable instruments may result in suboptimal entry points during rapidly changing markets. A portfolio of autocallables providing exposure to the same Underlying Asset may not be homogeneously affected by a change in that Underlying Asset price as the impact of such change may depend on the tenor of each autocallable. Depending on market conditions, requests to create and/or redeem shares in the Fund may result in the average tenor of the portfolio of autocallables held by the Fund to deviate from the average tenor the Fund intends to achieve.
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| GraniteShares Autocallable BABA ETF | Concentration Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Concentration Risk. To the extent that the Underlying Asset concentrates its investments in a particular industry, the Fund will be subject to the risks associated with that industry.
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| GraniteShares Autocallable BABA ETF | ETF Risks [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | ETF Risks.
Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that are authorized to purchase and redeem Shares directly from the Fund (known as “Authorized Participants” or “APs”). There are a limited number of financial institutions that post collateral for certain trades on an agency basis (i.e. on behalf of other market participants). In such circumstances, the Fund’s market price may be significantly different than its underlying net asset value. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services; or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
Cash Redemption Risk. The Fund currently expects to effect a significant portion of its creations and redemptions for cash, rather than in-kind securities. Paying redemption proceeds in cash rather than through in-kind delivery of portfolio securities may require the Fund to dispose of or sell portfolio securities or other assets at an inopportune time to obtain the cash needed to meet redemption orders. This may cause the Fund to sell a security and recognize a capital gain or loss that might not have been incurred if it had made a redemption in-kind. As a result, the Fund may pay out higher or lower annual capital gains distributions than ETFs that redeem in-kind. The use of cash creations and redemptions may also cause the Fund’s Shares to trade in the market at greater bid-ask spreads or greater premiums or discounts to the Fund’s NAV. Furthermore, the Fund may not be able to execute cash transactions for creation and redemption purposes at the same price used to determine the Fund’s NAV. To the extent that the maximum additional charge for creation or redemption transactions is insufficient to cover the execution shortfall, the Fund’s performance could be negatively impacted.
Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid-ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.
Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant.
Trading. Although Shares are listed on a national securities exchange, such as The Nasdaq Stock Market, LLC (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that an active trading market for the Shares will develop or be maintained or that the Shares will trade with any volume, or at all, on any stock exchange. This risk may be greater for the Fund as it seeks to have exposure to a single underlying stock as opposed to a more diverse portfolio like a traditional pooled investment. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares. Shares trade on the Exchange at a market price that may be below, at or above the Fund’s NAV. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged. In the event of an unscheduled market close for options contracts that reference a single stock, such as the Underlying Asset’s securities being halted or a market wide closure, settlement prices will be determined by the procedures of the listing exchange of the options contracts. As a result, the Fund could be adversely affected and be unable to implement its investment strategies in the event of an unscheduled closing.
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| GraniteShares Autocallable BABA ETF | High Portfolio Turnover Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | High Portfolio Turnover Risk. The Fund may actively and frequently trade all or a significant portion of the Fund’s holdings. A high portfolio turnover rate increases transaction costs, which may increase the Fund’s expenses. Frequent trading may also cause adverse tax consequences for investors in the Fund due to an increase in short-term capital gains.
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| GraniteShares Autocallable BABA ETF | Inflation Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the present value of the Fund’s assets and distributions, if any, may decline.
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| GraniteShares Autocallable BABA ETF | Liquidity Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Liquidity Risk. Some securities held by the Fund, including options contracts, may be difficult to sell or be illiquid, particularly during times of market turmoil. This risk is greater for the Fund as it will hold options contracts on a single security, and not a broader range of options contracts. Markets for securities or financial instruments could be disrupted by a number of events, including, but not limited to, an economic crisis, natural disasters, epidemics/pandemics, new legislation or regulatory changes inside or outside the United States. Illiquid securities may be difficult to value, especially in changing or volatile markets. If the Fund is forced to sell an illiquid security at an unfavorable time or price, the Fund may be adversely impacted. Certain market conditions or restrictions, such as market rules related to short sales, may prevent the Fund from limiting losses, realizing gains or achieving a high correlation with the Underlying Asset. There is no assurance that a security that is deemed liquid when purchased will continue to be liquid. Market illiquidity may cause losses for the Fund.
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| GraniteShares Autocallable BABA ETF | Management Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Management Risk. The Fund is subject to management risk because it is an actively managed portfolio. In managing the Fund’s investment portfolio, the portfolio managers will apply investment techniques and risk analyses that may not produce the desired result. There can be no guarantee that the Fund will meet its investment objective.
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| GraniteShares Autocallable BABA ETF | Money Market Instrument Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Repurchase agreements are contracts in which a seller of securities agrees to buy the securities back at a specified time and price. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments, including money market funds, may lose money through fees or other means.
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| GraniteShares Autocallable BABA ETF | New Fund Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | New Fund Risk. The Fund is a recently organized management investment company with no operating history. As a result, prospective investors do not have a track record or history on which to base their investment decisions.
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| GraniteShares Autocallable BABA ETF | Non-Diversification Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Non-Diversification Risk. Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer or a smaller number of issuers than if it was a diversified fund. As a result, a decline in the value of an investment in a single issuer or a smaller number of issuers could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio.
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| GraniteShares Autocallable BABA ETF | Operational Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Operational Risk. The Fund is subject to risks arising from various operational factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund relies on third-parties for a range of services, including custody. Any delay or failure relating to engaging or maintaining such service providers may affect the Fund’s ability to meet its investment objective. Although the Fund and the Adviser seek to reduce these operational risks through controls and procedures, there is no way to completely protect against such risks.
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| GraniteShares Autocallable BABA ETF | Recent Market Events Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Recent Market Events Risk. U.S. and international markets have experienced significant periods of volatility in recent years due to a number of economic, political and global macro factors, including uncertainty regarding interest rates and inflation, rising government debt in the U.S. and elsewhere, political events, changes in trade policy and armed conflict. Public health emergencies, such as the COVID-19 pandemic, have in the past caused, and may in the future cause, disruptions to business operations and supply chains, reduced consumer demand and significant market volatility. Armed conflict, including the conflict between Russia and Ukraine and conflicts in the Middle East, has caused, and could continue to cause, loss of life and severe adverse effects on regional and global economies and on the markets for certain securities and commodities. The U.S., the European Union and other countries have imposed, and may impose additional, sanctions and other restrictive measures on certain countries, individuals and companies, which could adversely affect the issuers, markets and economies concerned. In addition, the U.S. has imposed, and may continue to impose, tariffs and other trade barriers, and other countries have imposed or may impose retaliatory measures. Trade disputes between the U.S. and other countries could result in additional tariffs, trade barriers and/or investment restrictions. These and other events could adversely affect the Fund’s performance, and their duration and full effects cannot be predicted.
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| GraniteShares Autocallable BABA ETF | Single Issuer Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Single Issuer Risk. Issuer-specific attributes may cause an investment in the Fund to be more volatile than a traditional pooled investment vehicle which diversifies risk or the market generally. The value of the Fund, which focuses on an individual security (the Underlying Asset), may be more volatile than a traditional pooled investment or the market as a whole and may perform differently from the value of a traditional pooled investment or the market as a whole.
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| GraniteShares Autocallable BABA ETF | Tax Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Tax Risk. The Fund intends to elect and to qualify each year to be treated as a RIC under Subchapter M of the Code. As a RIC, the Fund will not be subject to U.S. federal income tax on the portion of its net investment income and net capital gain that it distributes to Shareholders, provided that it satisfies certain requirements of the Code. If the Fund does not qualify as a RIC for any taxable year and certain relief provisions are not available, the Fund’s taxable income will be subject to tax at the Fund level and to a further tax at the shareholder level when such income is distributed. To comply with the asset diversification test applicable to a RIC, the Fund will attempt to ensure that the value of the derivatives it holds never exceed 25% of the total value of Fund assets at the close of any quarter. If the Fund’s investments in the derivatives were to exceed 25% of the Fund’s total assets at the end of a tax quarter, the Fund, generally, has a grace period to cure such lack of compliance. If the Fund fails to timely cure, it may no longer be eligible to be treated as a RIC. In addition, distributions received by the Fund from the Underlying Asset may generate “bad income” that could prevent the Fund from meeting the “Income Requirement” of Subchapter M of the Code, which may cause the Fund to fail to qualify as a RIC. The Fund intends to treat any income it may derive from the options and swap contracts as “qualifying income” under the provisions of the Code applicable to RICs. If the income is not qualifying income the Fund may lose its status as a RIC. The Fund will, for each year, distribute substantially all of its net investment income and net capital gains.
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| GraniteShares Autocallable BABA ETF | Investing In U.S. Equities Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Investing in U.S. Equities Risk. Investing in U.S. issuers subjects the Fund to legal, regulatory, political, currency, security, and economic risks that are specific to the U.S. Certain changes in the U.S., such as a weakening of the U.S. economy or a decline in its financial markets, may have an adverse effect on U.S. issuers.
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| GraniteShares Autocallable BABA ETF | Affiliated Etfs Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Affiliated ETFs Risk. The Fund may invest in equity securities of other ETFs for which the Adviser serves as investment adviser. It is possible that a conflict of interest may arise. Additionally, to the extent the Fund invests in the securities of another affiliated ETF, the Fund will be subject to the investment risks of the ETF. Shareholders of the Fund are subject to duplicative expenses to the extent of the Fund’s investment in any affiliated ETF. Finally, the shares of the ETFs in which the Fund may invest will be listed on a national securities exchange and the Fund will purchase or sell these shares on the secondary market at its current market price, which may be more or less than its net asset value per share.
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| GraniteShares Autocallable BABA ETF | Box Spread E T F Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Box Spread ETF Risk. The Fund may invest in LBOX, an affiliated ETF advised by GraniteShares Advisors LLC, the Fund’s investment adviser, that employs a market-neutral box spread strategy to generate short-term, fixed-income-like returns. Box spread positions involve simultaneous long and short synthetic options positions on the same reference asset and are structured to capture an implied financing rate. While box spreads are designed to be market-neutral and to generate a return approximating prevailing short-term interest rates, they are subject to execution risk, counterparty risk with respect to the options positions, and the risk that the implied financing rate embedded in the box spread diverges from prevailing market rates in periods of market stress. The Fund’s investments in LBOX are made pursuant to Section 12(d)(1)(G) of the 1940 Act, which imposes no percentage-of-assets limits on the Fund’s investment in an exchange-traded fund. Accordingly, the Fund could, at any time, hold a material allocation in LBOX. The Fund’s adviser faces a conflict of interest in allocating Fund assets to an affiliated fund such as LBOX; see “Affiliated ETFs Risk.”
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| GraniteShares Autocallable BABA ETF | U.S. Government And U.S. Agency Obligations Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | U.S. Government and U.S. Agency Obligations Risk. The Fund may invest in securities issued by the U.S. government or its agencies or instrumentalities. U.S. Government obligations include securities issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, such as the U.S. Treasury. Payment of principal and interest on U.S. Government obligations may be backed by the full faith and credit of the United States or may be backed solely by the issuing or guaranteeing agency or instrumentality itself. In the latter case, the investor must look principally to the agency or instrumentality issuing or guaranteeing the obligation for ultimate repayment, which agency or instrumentality may be privately owned. There can be no assurance that the U.S. Government would provide financial support to its agencies or instrumentalities (including government-sponsored enterprises) where it is not obligated to do so.
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| GraniteShares Autocallable BABA ETF | Fixed Income Securities Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Fixed Income Securities Risk. The market value of Fixed Income Securities will change in response to interest rate changes and other factors, such as changes in the effective maturities and credit ratings of fixed income investments. During periods of falling interest rates, the values of outstanding Fixed Income Securities and related financial instruments generally rise. Conversely, during periods of rising interest rates, the values of such securities and related financial instruments generally decline. Fixed Income Securities are also subject to credit risk.
Investments in Fixed Income Securities may also involve the following risks, depending on the instrument involved:
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| GraniteShares Autocallable COIN ETF | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | PRINCIPAL RISKS OF INVESTING IN THE FUND
The principal risks of investing in the Fund are summarized below. As with any investment, there is a risk that you could lose all or a portion of your investment in the Fund. Each risk summarized below is considered a “principal risk” of investing in the Fund, regardless of the order in which it appears. Some or all of these risks may adversely affect the Fund’s net asset value per share (“NAV”), trading price, yield, total return and/or ability to meet its investment objectives. For more information about the risks of investing in the Fund, see the section in the Fund’s Prospectus titled “Additional Information About the Fund — Principal Risks of Investing in the Fund.”
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| GraniteShares Autocallable COIN ETF | Underlying Asset Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Underlying Asset Risk. The performance of the Underlying Asset, and subsequently the Fund’s performance, is subject to the risks of the digital asset and finance company industries. The Underlying Asset is subject to many risks that can negatively impact its revenue and viability including, but are not limited to price volatility risk, management risk, inflation risk, global economic risk, growth risk, supply and demand risk, operations risk, regulatory risk, environmental risk, terrorism risk and the risk of natural disasters. The Underlying Asset performance may be affected by the value of crypto assets, the volume of transactions on its platform, the overall development and growth of crypto assets, cyberattacks and security breaches affecting its platforms or third-party service providers, increased crypto platform competition and government regulations affecting the crypto industry. Higher levels of regulation could increase costs and adversely impact the current business models of the Underlying Asset and could severely impact its viability. The Fund’s daily returns may be affected by many factors but will depend on the performance and volatility of the Underlying Asset.
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| GraniteShares Autocallable COIN ETF | Derivatives Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Derivatives Risk. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds, interest rates or indexes. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other ordinary investments, including risk related to the market, imperfect correlation with underlying investments, higher price volatility, lack of availability, counterparty risk, liquidity, valuation and legal restrictions. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. The use of derivatives may result in larger losses or smaller gains than directly investing in securities. When the Fund uses derivatives, there may be an imperfect correlation between the value of the Underlying Asset and the derivative, which may prevent the Fund from achieving its investment objectives. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of those amounts initially invested. In addition, the Fund’s investments in derivatives are subject to the following risks:
Options Contracts. The use of options contracts involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which are affected by fiscal and monetary policies and by national and international political, changes in the actual or implied volatility or the reference asset, the time remaining until the expiration of the option contract and economic events. For the Fund, in particular, the value of the options contracts in which it invests is substantially influenced by the value of the Underlying Asset. Selling put options exposes the Fund to the risk of potential loss if the market value of the Underlying Asset falls below the strike price before the option expires. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to such date, the value of an option generally does not increase or decrease at the same rate at the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the underlying instrument, and there may at times not be a liquid secondary market for certain options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. Additionally, the Fund’s practice of “rolling” may cause the Fund to experience losses if the expiring contracts do not generate proceeds enough to cover the costs of entering into new options contracts. Rolling refers to the practice of closing out one options position and opening another with a different expiration date and/or a different strike price. Further, if an option is exercised, the seller (writer) of a put option is obligated to purchase the underlying asset at the strike price, which can result in significant financial and regulatory obligations for the Fund if the market value of the asset has fallen substantially. Furthermore, when the Fund seeks to trade out of puts, especially near expiration, there is an added risk that the Fund may be required to allocate resources unexpectedly to fulfill these obligations. This potential exposure to physical settlement can significantly impact the Fund’s liquidity and market exposure, particularly in volatile market conditions.
Swap Risk: Swaps are subject to tracking risk because they may not be perfect substitutes for the instruments they are intended to hedge or replace. Over the counter swaps are subject to counterparty default. Leverage inherent in derivatives will tend to magnify the Fund’s losses. The swap agreements may reference standardized exchange-traded, FLEX, European Style or American Style put options contracts that are based on the values of the price returns of the Underlying Asset. that generate specific risks.
Counterparty Risk. Counterparty risk is the risk that a counterparty to a financial instrument held by the Fund or by a special purpose or structured vehicle invested in by the Fund may become insolvent or otherwise fail to perform its obligations, and the Fund may obtain no or limited recovery of its investment, and any recovery may be significantly delayed.
Over-the-Counter Market Risk. Securities and options traded in over-the-counter markets may trade less frequently and in limited volumes and thus exhibit more volatility and liquidity risk, and the prices paid by the Fund in over-the-counter transactions may include an undisclosed dealer markup. The Fund is also exposed to default by the over-the-counter option writer who may be unwilling or unable to perform its contractual obligations to the Fund.
In addition, a counterparty (the other party to a transaction or an agreement or the party with whom the Fund executes transactions) to a transaction (including repurchase transaction) with the Fund may be unable or unwilling to make timely principal, interest or settlement payments, or otherwise honor its obligations.
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| GraniteShares Autocallable COIN ETF | Autocallable Structure Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Autocallable Structure Risk. The Fund’s returns are correlated to the performance of a theoretical portfolio of autocallables. Autocallables have specific structural features that may be unfamiliar to many investors:
Contingent Income Risk. Coupon payments from autocallables are not guaranteed and will not be made if the Underlying Asset falls below the Coupon Barrier on observation dates. This means the Fund may generate significantly less income than anticipated during market downturns.
Early Redemption Risk. Autocallables may be called before their scheduled maturity if the Underlying Asset reaches or exceeds the Autocallable Barrier on observation dates. This automatic early redemption could force reinvestment of that portion of the portfolio at lower rates if market yields have declined.
Barrier Risk. If the Underlying Asset falls below the Maturity Barrier at the maturity of an autocallable, that portion of the portfolio will be fully exposed to the negative performance of the Underlying Asset from its initial level. For example, if the Underlying Asset has declined 45% at maturity of a particular autocallable, the portfolio allocated to that autocallable would lose 45% of its value. This conditional protection creates a binary outcome that can result in sudden, significant losses if barriers are breached.
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| GraniteShares Autocallable COIN ETF | Calculation Methodology Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Calculation Methodology Risk. Autocallables rely on complex calculation methodologies that may not perform as expected under certain market conditions.
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| GraniteShares Autocallable COIN ETF | Distribution Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective, the Fund seeks to provide current monthly income. There is no assurance that the Fund will make a distribution in any given month. If the Fund makes distributions, the amounts of such distributions will likely vary greatly from one distribution to the next. Additionally, the monthly distributions, if any, may consist of returns of capital, which would decrease the Fund’s NAV and trading price over time. As a result, an investor may suffer significant losses to their investment.
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| GraniteShares Autocallable COIN ETF | NAV Erosion Risk Due to Distributions [Member] | |||||||||||||||||||
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| Risk [Text Block] |
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| GraniteShares Autocallable COIN ETF | Option Market Liquidity Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Option Market Liquidity Risk. Liquidity risk exists when particular investments are difficult to purchase or sell. The Fund’s investments in illiquid investments may reduce the returns of the Fund because it may be unable to sell the illiquid investments at an advantageous time or price.
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| GraniteShares Autocallable COIN ETF | Laddered Portfolio Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Laddered Portfolio Risk. A laddered portfolio strategy may not perform as expected if market conditions remain unfavorable over an extended period, multiple autocallable instruments may experience losses simultaneously and/or the reallocation across autocallable instruments may result in suboptimal entry points during rapidly changing markets. A portfolio of autocallables providing exposure to the same Underlying Asset may not be homogeneously affected by a change in that Underlying Asset price as the impact of such change may depend on the tenor of each autocallable. Depending on market conditions, requests to create and/or redeem shares in the Fund may result in the average tenor of the portfolio of autocallables held by the Fund to deviate from the average tenor the Fund intends to achieve.
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| GraniteShares Autocallable COIN ETF | Concentration Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Concentration Risk. To the extent that the Underlying Asset concentrates its investments in a particular industry, the Fund will be subject to the risks associated with that industry.
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| GraniteShares Autocallable COIN ETF | ETF Risks [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | ETF Risks.
Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that are authorized to purchase and redeem Shares directly from the Fund (known as “Authorized Participants” or “APs”). There are a limited number of financial institutions that post collateral for certain trades on an agency basis (i.e. on behalf of other market participants). In such circumstances, the Fund’s market price may be significantly different than its underlying net asset value. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services; or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
Cash Redemption Risk. The Fund currently expects to effect a significant portion of its creations and redemptions for cash, rather than in-kind securities. Paying redemption proceeds in cash rather than through in-kind delivery of portfolio securities may require the Fund to dispose of or sell portfolio securities or other assets at an inopportune time to obtain the cash needed to meet redemption orders. This may cause the Fund to sell a security and recognize a capital gain or loss that might not have been incurred if it had made a redemption in-kind. As a result, the Fund may pay out higher or lower annual capital gains distributions than ETFs that redeem in-kind. The use of cash creations and redemptions may also cause the Fund’s Shares to trade in the market at greater bid-ask spreads or greater premiums or discounts to the Fund’s NAV. Furthermore, the Fund may not be able to execute cash transactions for creation and redemption purposes at the same price used to determine the Fund’s NAV. To the extent that the maximum additional charge for creation or redemption transactions is insufficient to cover the execution shortfall, the Fund’s performance could be negatively impacted.
Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid-ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.
Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant.
Trading. Although Shares are listed on a national securities exchange, such as The Nasdaq Stock Market, LLC (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that an active trading market for the Shares will develop or be maintained or that the Shares will trade with any volume, or at all, on any stock exchange. This risk may be greater for the Fund as it seeks to have exposure to a single underlying stock as opposed to a more diverse portfolio like a traditional pooled investment. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares. Shares trade on the Exchange at a market price that may be below, at or above the Fund’s NAV. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged. In the event of an unscheduled market close for options contracts that reference a single stock, such as the Underlying Asset’s securities being halted or a market wide closure, settlement prices will be determined by the procedures of the listing exchange of the options contracts. As a result, the Fund could be adversely affected and be unable to implement its investment strategies in the event of an unscheduled closing.
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| GraniteShares Autocallable COIN ETF | High Portfolio Turnover Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | High Portfolio Turnover Risk. The Fund may actively and frequently trade all or a significant portion of the Fund’s holdings. A high portfolio turnover rate increases transaction costs, which may increase the Fund’s expenses. Frequent trading may also cause adverse tax consequences for investors in the Fund due to an increase in short-term capital gains.
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| GraniteShares Autocallable COIN ETF | Inflation Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the present value of the Fund’s assets and distributions, if any, may decline.
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| GraniteShares Autocallable COIN ETF | Liquidity Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Liquidity Risk. Some securities held by the Fund, including options contracts, may be difficult to sell or be illiquid, particularly during times of market turmoil. This risk is greater for the Fund as it will hold options contracts on a single security, and not a broader range of options contracts. Markets for securities or financial instruments could be disrupted by a number of events, including, but not limited to, an economic crisis, natural disasters, epidemics/pandemics, new legislation or regulatory changes inside or outside the United States. Illiquid securities may be difficult to value, especially in changing or volatile markets. If the Fund is forced to sell an illiquid security at an unfavorable time or price, the Fund may be adversely impacted. Certain market conditions or restrictions, such as market rules related to short sales, may prevent the Fund from limiting losses, realizing gains or achieving a high correlation with the Underlying Asset. There is no assurance that a security that is deemed liquid when purchased will continue to be liquid. Market illiquidity may cause losses for the Fund.
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| GraniteShares Autocallable COIN ETF | Management Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Management Risk. The Fund is subject to management risk because it is an actively managed portfolio. In managing the Fund’s investment portfolio, the portfolio managers will apply investment techniques and risk analyses that may not produce the desired result. There can be no guarantee that the Fund will meet its investment objective.
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| GraniteShares Autocallable COIN ETF | Money Market Instrument Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Repurchase agreements are contracts in which a seller of securities agrees to buy the securities back at a specified time and price. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments, including money market funds, may lose money through fees or other means.
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| GraniteShares Autocallable COIN ETF | New Fund Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | New Fund Risk. The Fund is a recently organized management investment company with limited operating history. As a result, prospective investors do not have a track record or history on which to base their investment decisions.
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| GraniteShares Autocallable COIN ETF | Non-Diversification Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Non-Diversification Risk. Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer or a smaller number of issuers than if it was a diversified fund. As a result, a decline in the value of an investment in a single issuer or a smaller number of issuers could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio.
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| GraniteShares Autocallable COIN ETF | Operational Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Operational Risk. The Fund is subject to risks arising from various operational factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund relies on third-parties for a range of services, including custody. Any delay or failure relating to engaging or maintaining such service providers may affect the Fund’s ability to meet its investment objective. Although the Fund and Adviser seek to reduce these operational risks through controls and procedures, there is no way to completely protect against such risks.
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| GraniteShares Autocallable COIN ETF | Recent Market Events Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Recent Market Events Risk. U.S. and international markets have experienced significant periods of volatility in recent years due to a number of economic, political and global macro factors, including uncertainty regarding interest rates and inflation, rising government debt in the U.S. and elsewhere, political events, changes in trade policy and armed conflict. Public health emergencies, such as the COVID-19 pandemic, have in the past caused, and may in the future cause, disruptions to business operations and supply chains, reduced consumer demand and significant market volatility. Armed conflict, including the conflict between Russia and Ukraine and conflicts in the Middle East, has caused, and could continue to cause, loss of life and severe adverse effects on regional and global economies and on the markets for certain securities and commodities. The U.S., the European Union and other countries have imposed, and may impose additional, sanctions and other restrictive measures on certain countries, individuals and companies, which could adversely affect the issuers, markets and economies concerned. In addition, the U.S. has imposed, and may continue to impose, tariffs and other trade barriers, and other countries have imposed or may impose retaliatory measures. Trade disputes between the U.S. and other countries could result in additional tariffs, trade barriers and/or investment restrictions. These and other events could adversely affect the Fund’s performance, and their duration and full effects cannot be predicted.
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| GraniteShares Autocallable COIN ETF | Single Issuer Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Single Issuer Risk. Issuer-specific attributes may cause an investment in the Fund to be more volatile than a traditional pooled investment vehicle which diversifies risk or the market generally. The value of the Fund, which focuses on an individual security (the Underlying Asset), may be more volatile than a traditional pooled investment or the market as a whole and may perform differently from the value of a traditional pooled investment or the market as a whole.
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| GraniteShares Autocallable COIN ETF | Tax Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Tax Risk. The Fund intends to elect and to qualify each year to be treated as a RIC under Subchapter M of the Code. As a RIC, the Fund will not be subject to U.S. federal income tax on the portion of its net investment income and net capital gain that it distributes to Shareholders, provided that it satisfies certain requirements of the Code. If the Fund does not qualify as a RIC for any taxable year and certain relief provisions are not available, the Fund’s taxable income will be subject to tax at the Fund level and to a further tax at the shareholder level when such income is distributed. To comply with the asset diversification test applicable to a RIC, the Fund will attempt to ensure that the value of the derivatives it holds never exceed 25% of the total value of Fund assets at the close of any quarter. If the Fund’s investments in the derivatives were to exceed 25% of the Fund’s total assets at the end of a tax quarter, the Fund, generally, has a grace period to cure such lack of compliance. If the Fund fails to timely cure, it may no longer be eligible to be treated as a RIC. In addition, distributions received by the Fund from the Underlying Asset may generate “bad income” that could prevent the Fund from meeting the “Income Requirement” of Subchapter M of the Code, which may cause the Fund to fail to qualify as a RIC. The Fund intends to treat any income it may derive from the options and swap contracts as “qualifying income” under the provisions of the Code applicable to RICs. If the income is not qualifying income the Fund may lose its status as a RIC. The Fund will, for each year, distribute substantially all of its net investment income and net capital gains.
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| GraniteShares Autocallable COIN ETF | Investing In U.S. Equities Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Investing in U.S. Equities Risk. Investing in U.S. issuers subjects the Fund to legal, regulatory, political, currency, security, and economic risks that are specific to the U.S. Certain changes in the U.S., such as a weakening of the U.S. economy or a decline in its financial markets, may have an adverse effect on U.S. issuers.
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| GraniteShares Autocallable COIN ETF | Affiliated Etfs Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Affiliated ETFs Risk. The Fund may invest in equity securities of other ETFs for which the Adviser serves as investment adviser. It is possible that a conflict of interest may arise. Additionally, to the extent the Fund invests in the securities of another affiliated ETF, the Fund will be subject to the investment risks of the ETF. Shareholders of the Fund are subject to duplicative expenses to the extent of the Fund’s investment in any affiliated ETF. Finally, the shares of the ETFs in which the Fund may invest will be listed on a national securities exchange and the Fund will purchase or sell these shares on the secondary market at its current market price, which may be more or less than its net asset value per share.
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| GraniteShares Autocallable COIN ETF | Box Spread E T F Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Box Spread ETF Risk. The Fund may invest in LBOX, an affiliated ETF advised by GraniteShares Advisors LLC, the Fund’s investment adviser, that employs a market-neutral box spread strategy to generate short-term, fixed-income-like returns. Box spread positions involve simultaneous long and short synthetic options positions on the same reference asset and are structured to capture an implied financing rate. While box spreads are designed to be market-neutral and to generate a return approximating prevailing short-term interest rates, they are subject to execution risk, counterparty risk with respect to the options positions, and the risk that the implied financing rate embedded in the box spread diverges from prevailing market rates in periods of market stress. The Fund’s investments in LBOX are made pursuant to Section 12(d)(1)(G) of the 1940 Act, which imposes no percentage-of-assets limits on the Fund’s investment in an exchange-traded fund. Accordingly, the Fund could, at any time, hold a material allocation in LBOX. The Fund’s adviser faces a conflict of interest in allocating Fund assets to an affiliated fund such as LBOX; see “Affiliated ETFs Risk.”
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| GraniteShares Autocallable COIN ETF | U.S. Government And U.S. Agency Obligations Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | U.S. Government and U.S. Agency Obligations Risk. The Fund may invest in securities issued by the U.S. government or its agencies or instrumentalities. U.S. Government obligations include securities issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, such as the U.S. Treasury. Payment of principal and interest on U.S. Government obligations may be backed by the full faith and credit of the United States or may be backed solely by the issuing or guaranteeing agency or instrumentality itself. In the latter case, the investor must look principally to the agency or instrumentality issuing or guaranteeing the obligation for ultimate repayment, which agency or instrumentality may be privately owned. There can be no assurance that the U.S. Government would provide financial support to its agencies or instrumentalities (including government-sponsored enterprises) where it is not obligated to do so.
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| GraniteShares Autocallable COIN ETF | Fixed Income Securities Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Fixed Income Securities Risk. The market value of Fixed Income Securities will change in response to interest rate changes and other factors, such as changes in the effective maturities and credit ratings of fixed income investments. During periods of falling interest rates, the values of outstanding Fixed Income Securities and related financial instruments generally rise. Conversely, during periods of rising interest rates, the values of such securities and related financial instruments generally decline. Fixed Income Securities are also subject to credit risk.
Investments in Fixed Income Securities may also involve the following risks, depending on the instrument involved:
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| GraniteShares Autocallable CRCL ETF | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | PRINCIPAL RISKS OF INVESTING IN THE FUND
The principal risks of investing in the Fund are summarized below. As with any investment, there is a risk that you could lose all or a portion of your investment in the Fund. Each risk summarized below is considered a “principal risk” of investing in the Fund, regardless of the order in which it appears. Some or all of these risks may adversely affect the Fund’s net asset value per share (“NAV”), trading price, yield, total return and/or ability to meet its investment objectives. For more information about the risks of investing in the Fund, see the section in the Fund’s Prospectus titled “Additional Information About the Fund — Principal Risks of Investing in the Fund.”
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| GraniteShares Autocallable CRCL ETF | Underlying Asset Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Underlying Asset Risk. The performance of the Underlying Asset, and consequently the Fund’s performance, is subject to information technology industry. The Underlying Asset is subject to many risks that can negatively impact its revenue and viability including, but are not limited to price volatility risk, management risk, inflation risk, global economic risk, growth risk, supply and demand risk, operations risk, regulatory risk, environmental risk, terrorism risk and the risk of natural disasters. The Underlying Asset performance may be affected by global markets and demand for its products and services, its ability to develop new products and services, inventory levels, supply chain issues, the performance of third-party software developers, system and network failures, privacy and cybersecurity breaches and changes in international and government regulations. Information technology companies are heavily dependent on patent and intellectual property rights, the loss or impairment of which may adversely affect profitability. Additionally, companies in the information technology industry may face dramatic and often unpredictable changes in growth rates and competition for the services of qualified personnel. The Fund’s daily returns may be affected by many factors but will depend on the performance and volatility of the Underlying Asset.
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| GraniteShares Autocallable CRCL ETF | Derivatives Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Derivatives Risk. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds, interest rates or indexes. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other ordinary investments, including risk related to the market, imperfect correlation with underlying investments, higher price volatility, lack of availability, counterparty risk, liquidity, valuation and legal restrictions. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. The use of derivatives may result in larger losses or smaller gains than directly investing in securities. When the Fund uses derivatives, there may be an imperfect correlation between the value of the Underlying Asset and the derivative, which may prevent the Fund from achieving its investment objectives. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of those amounts initially invested. In addition, the Fund’s investments in derivatives are subject to the following risks:
Options Contracts. The use of options contracts involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which are affected by fiscal and monetary policies and by national and international political, changes in the actual or implied volatility or the reference asset, the time remaining until the expiration of the option contract and economic events. For the Fund, in particular, the value of the options contracts in which it invests is substantially influenced by the value of the Underlying Asset. Selling put options exposes the Fund to the risk of potential loss if the market value of the Underlying Asset falls below the strike price before the option expires. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to such date, the value of an option generally does not increase or decrease at the same rate at the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the underlying instrument, and there may at times not be a liquid secondary market for certain options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. Additionally, the Fund’s practice of “rolling” may cause the Fund to experience losses if the expiring contracts do not generate proceeds enough to cover the costs of entering into new options contracts. Rolling refers to the practice of closing out one options position and opening another with a different expiration date and/or a different strike price. Further, if an option is exercised, the seller (writer) of a put option is obligated to purchase the underlying asset at the strike price, which can result in significant financial and regulatory obligations for the Fund if the market value of the asset has fallen substantially. Furthermore, when the Fund seeks to trade out of puts, especially near expiration, there is an added risk that the Fund may be required to allocate resources unexpectedly to fulfill these obligations. This potential exposure to physical settlement can significantly impact the Fund’s liquidity and market exposure, particularly in volatile market conditions.
Swap Risk: Swaps are subject to tracking risk because they may not be perfect substitutes for the instruments they are intended to hedge or replace. Over the counter swaps are subject to counterparty default. Leverage inherent in derivatives will tend to magnify the Fund’s losses. The swap agreements may reference standardized exchange-traded, FLEX, European Style or American Style put options contracts that are based on the values of the price returns of the Underlying Asset. that generate specific risks.
Counterparty Risk. Counterparty risk is the risk that a counterparty to a financial instrument held by the Fund or by a special purpose or structured vehicle invested in by the Fund may become insolvent or otherwise fail to perform its obligations, and the Fund may obtain no or limited recovery of its investment, and any recovery may be significantly delayed.
Over-the-Counter Market Risk. Securities and options traded in over-the-counter markets may trade less frequently and in limited volumes and thus exhibit more volatility and liquidity risk, and the prices paid by the Fund in over-the-counter transactions may include an undisclosed dealer markup. The Fund is also exposed to default by the over-the-counter option writer who may be unwilling or unable to perform its contractual obligations to the Fund.
In addition, a counterparty (the other party to a transaction or an agreement or the party with whom the Fund executes transactions) to a transaction (including repurchase transaction) with the Fund may be unable or unwilling to make timely principal, interest or settlement payments, or otherwise honor its obligations.
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| GraniteShares Autocallable CRCL ETF | Autocallable Structure Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Autocallable Structure Risk. The Fund’s returns are correlated to the performance of a theoretical portfolio of autocallables. Autocallables have specific structural features that may be unfamiliar to many investors:
Contingent Income Risk. Coupon payments from autocallables are not guaranteed and will not be made if the Underlying Asset falls below the Coupon Barrier on observation dates. This means the Fund may generate significantly less income than anticipated during market downturns. The expected absence of future coupon payments over the term of an autocallable could materially affect its value.
Early Redemption Risk. Autocallables may be called before their scheduled maturity if the Underlying Asset reaches or exceeds the Autocallable Barrier on observation dates. This automatic early redemption could force reinvestment of that portion of the portfolio at lower rates if market yields have declined.
Barrier Risk. If the Underlying Asset falls below the Maturity Barrier at the maturity of an autocallable, that portion of the portfolio will be fully exposed to the negative performance of the Underlying Asset from its initial level. For example, if the Underlying Asset has declined 45% at maturity of a particular autocallable, the portfolio allocated to that autocallable would lose 45% of its value. This conditional protection creates a binary outcome that can result in sudden, significant losses if barriers are breached.
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| GraniteShares Autocallable CRCL ETF | Calculation Methodology Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Calculation Methodology Risk. Autocallables rely on complex calculation methodologies that may not perform as expected under certain market conditions.
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| GraniteShares Autocallable CRCL ETF | Distribution Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective, the Fund seeks to provide current monthly income. There is no assurance that the Fund will make a distribution in any given month. If the Fund makes distributions, the amounts of such distributions will likely vary greatly from one distribution to the next. Additionally, the monthly distributions, if any, may consist of returns of capital, which would decrease the Fund’s NAV and trading price over time. As a result, an investor may suffer significant losses to their investment.
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| GraniteShares Autocallable CRCL ETF | NAV Erosion Risk Due to Distributions [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] |
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| GraniteShares Autocallable CRCL ETF | Option Market Liquidity Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Option Market Liquidity Risk. Liquidity risk exists when particular investments are difficult to purchase or sell. The Fund’s investments in illiquid investments may reduce the returns of the Fund because it may be unable to sell the illiquid investments at an advantageous time or price.
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| GraniteShares Autocallable CRCL ETF | Laddered Portfolio Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Laddered Portfolio Risk. A laddered portfolio strategy may not perform as expected if market conditions remain unfavorable over an extended period, multiple autocallable instruments may experience losses simultaneously and/or the reallocation across autocallable instruments may result in suboptimal entry points during rapidly changing markets. A portfolio of autocallables providing exposure to the same Underlying Asset may not be homogeneously affected by a change in that Underlying Asset price as the impact of such change may depend on the tenor of each autocallable. Depending on market conditions, requests to create and/or redeem shares in the Fund may result in the average tenor of the portfolio of autocallables held by the Fund to deviate from the average tenor the Fund intends to achieve.
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| GraniteShares Autocallable CRCL ETF | Concentration Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Concentration Risk. To the extent that the Underlying Asset concentrates its investments in a particular industry, the Fund will be subject to the risks associated with that industry.
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| GraniteShares Autocallable CRCL ETF | ETF Risks [Member] | |||||||||||||||||||
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| Risk [Text Block] | ETF Risks.
Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that are authorized to purchase and redeem Shares directly from the Fund (known as “Authorized Participants” or “APs”). There are a limited number of financial institutions that post collateral for certain trades on an agency basis (i.e. on behalf of other market participants). In such circumstances, the Fund’s market price may be significantly different than its underlying net asset value. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services; or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
Cash Redemption Risk. The Fund currently expects to effect a significant portion of its creations and redemptions for cash, rather than in-kind securities. Paying redemption proceeds in cash rather than through in-kind delivery of portfolio securities may require the Fund to dispose of or sell portfolio securities or other assets at an inopportune time to obtain the cash needed to meet redemption orders. This may cause the Fund to sell a security and recognize a capital gain or loss that might not have been incurred if it had made a redemption in-kind. As a result, the Fund may pay out higher or lower annual capital gains distributions than ETFs that redeem in-kind. The use of cash creations and redemptions may also cause the Fund’s Shares to trade in the market at greater bid-ask spreads or greater premiums or discounts to the Fund’s NAV. Furthermore, the Fund may not be able to execute cash transactions for creation and redemption purposes at the same price used to determine the Fund’s NAV. To the extent that the maximum additional charge for creation or redemption transactions is insufficient to cover the execution shortfall, the Fund’s performance could be negatively impacted.
Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid-ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.
Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant.
Trading. Although Shares are listed on a national securities exchange, such as The Nasdaq Stock Market, LLC (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that an active trading market for the Shares will develop or be maintained or that the Shares will trade with any volume, or at all, on any stock exchange. This risk may be greater for the Fund as it seeks to have exposure to a single underlying stock as opposed to a more diverse portfolio like a traditional pooled investment. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares. Shares trade on the Exchange at a market price that may be below, at or above the Fund’s NAV. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged. In the event of an unscheduled market close for options contracts that reference a single stock, such as the Underlying Asset’s securities being halted or a market wide closure, settlement prices will be determined by the procedures of the listing exchange of the options contracts. As a result, the Fund could be adversely affected and be unable to implement its investment strategies in the event of an unscheduled closing.
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| GraniteShares Autocallable CRCL ETF | High Portfolio Turnover Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | High Portfolio Turnover Risk. The Fund may actively and frequently trade all or a significant portion of the Fund’s holdings. A high portfolio turnover rate increases transaction costs, which may increase the Fund’s expenses. Frequent trading may also cause adverse tax consequences for investors in the Fund due to an increase in short-term capital gains.
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| GraniteShares Autocallable CRCL ETF | Inflation Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the present value of the Fund’s assets and distributions, if any, may decline.
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| GraniteShares Autocallable CRCL ETF | Liquidity Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Liquidity Risk. Some securities held by the Fund, including options contracts, may be difficult to sell or be illiquid, particularly during times of market turmoil. This risk is greater for the Fund as it will hold options contracts on a single security, and not a broader range of options contracts. Markets for securities or financial instruments could be disrupted by a number of events, including, but not limited to, an economic crisis, natural disasters, epidemics/pandemics, new legislation or regulatory changes inside or outside the United States. Illiquid securities may be difficult to value, especially in changing or volatile markets. If the Fund is forced to sell an illiquid security at an unfavorable time or price, the Fund may be adversely impacted. Certain market conditions or restrictions, such as market rules related to short sales, may prevent the Fund from limiting losses, realizing gains or achieving a high correlation with the Underlying Asset. There is no assurance that a security that is deemed liquid when purchased will continue to be liquid. Market illiquidity may cause losses for the Fund.
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| GraniteShares Autocallable CRCL ETF | Management Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Management Risk. The Fund is subject to management risk because it is an actively managed portfolio. In managing the Fund’s investment portfolio, the portfolio managers will apply investment techniques and risk analyses that may not produce the desired result. There can be no guarantee that the Fund will meet its investment objective.
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| GraniteShares Autocallable CRCL ETF | Money Market Instrument Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Repurchase agreements are contracts in which a seller of securities agrees to buy the securities back at a specified time and price. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments, including money market funds, may lose money through fees or other means.
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| GraniteShares Autocallable CRCL ETF | New Fund Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | New Fund Risk. The Fund is a recently organized management investment company with no operating history. As a result, prospective investors do not have a track record or history on which to base their investment decisions.
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| GraniteShares Autocallable CRCL ETF | Non-Diversification Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Non-Diversification Risk. Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer or a smaller number of issuers than if it was a diversified fund. As a result, a decline in the value of an investment in a single issuer or a smaller number of issuers could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio.
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| GraniteShares Autocallable CRCL ETF | Operational Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Operational Risk. The Fund is subject to risks arising from various operational factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund relies on third-parties for a range of services, including custody. Any delay or failure relating to engaging or maintaining such service providers may affect the Fund’s ability to meet its investment objective. Although the Fund and the Adviser seek to reduce these operational risks through controls and procedures, there is no way to completely protect against such risks.
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| GraniteShares Autocallable CRCL ETF | Recent Market Events Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Recent Market Events Risk. U.S. and international markets have experienced significant periods of volatility in recent years due to a number of economic, political and global macro factors, including uncertainty regarding interest rates and inflation, rising government debt in the U.S. and elsewhere, political events, changes in trade policy and armed conflict. Public health emergencies, such as the COVID-19 pandemic, have in the past caused, and may in the future cause, disruptions to business operations and supply chains, reduced consumer demand and significant market volatility. Armed conflict, including the conflict between Russia and Ukraine and conflicts in the Middle East, has caused, and could continue to cause, loss of life and severe adverse effects on regional and global economies and on the markets for certain securities and commodities. The U.S., the European Union and other countries have imposed, and may impose additional, sanctions and other restrictive measures on certain countries, individuals and companies, which could adversely affect the issuers, markets and economies concerned. In addition, the U.S. has imposed, and may continue to impose, tariffs and other trade barriers, and other countries have imposed or may impose retaliatory measures. Trade disputes between the U.S. and other countries could result in additional tariffs, trade barriers and/or investment restrictions. These and other events could adversely affect the Fund’s performance, and their duration and full effects cannot be predicted.
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| GraniteShares Autocallable CRCL ETF | Single Issuer Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Single Issuer Risk. Issuer-specific attributes may cause an investment in the Fund to be more volatile than a traditional pooled investment vehicle which diversifies risk or the market generally. The value of the Fund, which focuses on an individual security (the Underlying Asset), may be more volatile than a traditional pooled investment or the market as a whole and may perform differently from the value of a traditional pooled investment or the market as a whole.
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| GraniteShares Autocallable CRCL ETF | Tax Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Tax Risk. The Fund intends to elect and to qualify each year to be treated as a RIC under Subchapter M of the Code. As a RIC, the Fund will not be subject to U.S. federal income tax on the portion of its net investment income and net capital gain that it distributes to Shareholders, provided that it satisfies certain requirements of the Code. If the Fund does not qualify as a RIC for any taxable year and certain relief provisions are not available, the Fund’s taxable income will be subject to tax at the Fund level and to a further tax at the shareholder level when such income is distributed. To comply with the asset diversification test applicable to a RIC, the Fund will attempt to ensure that the value of the derivatives it holds never exceed 25% of the total value of Fund assets at the close of any quarter. If the Fund’s investments in the derivatives were to exceed 25% of the Fund’s total assets at the end of a tax quarter, the Fund, generally, has a grace period to cure such lack of compliance. If the Fund fails to timely cure, it may no longer be eligible to be treated as a RIC. In addition, distributions received by the Fund from the Underlying Asset may generate “bad income” that could prevent the Fund from meeting the “Income Requirement” of Subchapter M of the Code, which may cause the Fund to fail to qualify as a RIC. The Fund intends to treat any income it may derive from the options and swap contracts as “qualifying income” under the provisions of the Code applicable to RICs. If the income is not qualifying income the Fund may lose its status as a RIC. The Fund will, for each year, distribute substantially all of its net investment income and net capital gains.
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| GraniteShares Autocallable CRCL ETF | Investing In U.S. Equities Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Investing in U.S. Equities Risk. Investing in U.S. issuers subjects the Fund to legal, regulatory, political, currency, security, and economic risks that are specific to the U.S. Certain changes in the U.S., such as a weakening of the U.S. economy or a decline in its financial markets, may have an adverse effect on U.S. issuers.
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| GraniteShares Autocallable CRCL ETF | Affiliated Etfs Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Affiliated ETFs Risk. The Fund may invest in equity securities of other ETFs for which the Adviser serves as investment adviser. It is possible that a conflict of interest may arise. Additionally, to the extent the Fund invests in the securities of another affiliated ETF, the Fund will be subject to the investment risks of the ETF. Shareholders of the Fund are subject to duplicative expenses to the extent of the Fund’s investment in any affiliated ETF. Finally, the shares of the ETFs in which the Fund may invest will be listed on a national securities exchange and the Fund will purchase or sell these shares on the secondary market at its current market price, which may be more or less than its net asset value per share.
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| GraniteShares Autocallable CRCL ETF | Box Spread E T F Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Box Spread ETF Risk. The Fund may invest in LBOX, an affiliated ETF advised by GraniteShares Advisors LLC, the Fund’s investment adviser, that employs a market-neutral box spread strategy to generate short-term, fixed-income-like returns. Box spread positions involve simultaneous long and short synthetic options positions on the same reference asset and are structured to capture an implied financing rate. While box spreads are designed to be market-neutral and to generate a return approximating prevailing short-term interest rates, they are subject to execution risk, counterparty risk with respect to the options positions, and the risk that the implied financing rate embedded in the box spread diverges from prevailing market rates in periods of market stress. The Fund’s investments in LBOX are made pursuant to Section 12(d)(1)(G) of the 1940 Act, which imposes no percentage-of-assets limits on the Fund’s investment in an exchange-traded fund. Accordingly, the Fund could, at any time, hold a material allocation in LBOX. The Fund’s adviser faces a conflict of interest in allocating Fund assets to an affiliated fund such as LBOX; see “Affiliated ETFs Risk.”
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| GraniteShares Autocallable CRCL ETF | U.S. Government And U.S. Agency Obligations Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | U.S. Government and U.S. Agency Obligations Risk. The Fund may invest in securities issued by the U.S. government or its agencies or instrumentalities. U.S. Government obligations include securities issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, such as the U.S. Treasury. Payment of principal and interest on U.S. Government obligations may be backed by the full faith and credit of the United States or may be backed solely by the issuing or guaranteeing agency or instrumentality itself. In the latter case, the investor must look principally to the agency or instrumentality issuing or guaranteeing the obligation for ultimate repayment, which agency or instrumentality may be privately owned. There can be no assurance that the U.S. Government would provide financial support to its agencies or instrumentalities (including government-sponsored enterprises) where it is not obligated to do so.
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| GraniteShares Autocallable CRCL ETF | Fixed Income Securities Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Fixed Income Securities Risk. The market value of Fixed Income Securities will change in response to interest rate changes and other factors, such as changes in the effective maturities and credit ratings of fixed income investments. During periods of falling interest rates, the values of outstanding Fixed Income Securities and related financial instruments generally rise. Conversely, during periods of rising interest rates, the values of such securities and related financial instruments generally decline. Fixed Income Securities are also subject to credit risk.
Investments in Fixed Income Securities may also involve the following risks, depending on the instrument involved:
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| GraniteShares Autocallable CRCL ETF | Stablecoin Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Stablecoin Risk. The Fund will have significant exposure to stablecoins, as a result of its concentrated exposure to Underlying Asset, an issuer of stablecoins. Although U.S. dollar- or Euro-pegged stablecoins are designed to maintain a stable value by being backed by fiat currency reserves or other liquid assets, there is no guarantee that the peg will be maintained or that the reserves will be sufficient, transparent or accessible in times of market stress. The issuer’s ability to honor redemptions on a 1:1 basis may be impaired by inadequate reserve management, limited oversight, insolvency or legal restrictions. Moreover, the stablecoin market is subject to an evolving regulatory environment. Any legislative or enforcement actions targeting stablecoin issuers, custodians or reserve assets could impact the stablecoin’s functionality, tradability or value. Even where reserves are fully collateralized, lack of independent audits, insufficient disclosures or concentration in a single custodian or asset type (e.g., short-term U.S. Treasuries) may expose investors to hidden vulnerabilities. Additionally, stablecoins are typically reliant on blockchain infrastructure and smart contracts, which may be subject to bugs, outages or cyberattacks. A failure to maintain the peg or loss of confidence in the stablecoin could result in rapid redemptions, illiquidity, and significant losses to investors. Investors should not assume that exposure to a U.S. dollar- or Euro-pegged stablecoin is equivalent to holding U.S. dollars, Euros or risk-free assets.
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| GraniteShares Autocallable CRWV ETF | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | PRINCIPAL RISKS OF INVESTING IN THE FUND
The principal risks of investing in the Fund are summarized below. As with any investment, there is a risk that you could lose all or a portion of your investment in the Fund. Each risk summarized below is considered a “principal risk” of investing in the Fund, regardless of the order in which it appears. Some or all of these risks may adversely affect the Fund’s net asset value per share (“NAV”), trading price, yield, total return and/or ability to meet its investment objectives. For more information about the risks of investing in the Fund, see the section in the Fund’s Prospectus titled “Additional Information About the Fund — Principal Risks of Investing in the Fund.”
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| GraniteShares Autocallable CRWV ETF | Underlying Asset Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Underlying Asset Risk. The performance of the Underlying Asset, and consequently the Fund’s performance, is subject to the risks of the computer software industry. The Underlying Asset is subject to many risks that can negatively impact its revenue and viability including, but are not limited to price volatility risk, management risk, inflation risk, global economic risk, growth risk, supply and demand risk, operations risk, regulatory risk, environmental risk, terrorism risk and the risk of natural disasters. The Underlying Asset performance may be affected by competition in the microprocessor market, reliance on third-party manufacturers, the company’s ability to new develop new products, losses of significant customers, changes in customer demand for its products, risks associated with defective products political, legal and economic risks affecting the company’s global operations. The Fund’s daily returns may be affected by many factors but will depend on the performance and volatility of the Underlying Asset.
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| GraniteShares Autocallable CRWV ETF | Derivatives Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Derivatives Risk. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds, interest rates or indexes. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other ordinary investments, including risk related to the market, imperfect correlation with underlying investments, higher price volatility, lack of availability, counterparty risk, liquidity, valuation and legal restrictions. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. The use of derivatives may result in larger losses or smaller gains than directly investing in securities. When the Fund uses derivatives, there may be an imperfect correlation between the value of the Underlying Asset and the derivative, which may prevent the Fund from achieving its investment objectives. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of those amounts initially invested. In addition, the Fund’s investments in derivatives are subject to the following risks:
Options Contracts. The use of options contracts involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which are affected by fiscal and monetary policies and by national and international political, changes in the actual or implied volatility or the reference asset, the time remaining until the expiration of the option contract and economic events. For the Fund, in particular, the value of the options contracts in which it invests is substantially influenced by the value of the Underlying Asset. Selling put options exposes the Fund to the risk of potential loss if the market value of the Underlying Asset falls below the strike price before the option expires. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to such date, the value of an option generally does not increase or decrease at the same rate at the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the underlying instrument, and there may at times not be a liquid secondary market for certain options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. Additionally, the Fund’s practice of “rolling” may cause the Fund to experience losses if the expiring contracts do not generate proceeds enough to cover the costs of entering into new options contracts. Rolling refers to the practice of closing out one options position and opening another with a different expiration date and/or a different strike price. Further, if an option is exercised, the seller (writer) of a put option is obligated to purchase the underlying asset at the strike price, which can result in significant financial and regulatory obligations for the Fund if the market value of the asset has fallen substantially. Furthermore, when the Fund seeks to trade out of puts, especially near expiration, there is an added risk that the Fund may be required to allocate resources unexpectedly to fulfill these obligations. This potential exposure to physical settlement can significantly impact the Fund’s liquidity and market exposure, particularly in volatile market conditions.
Swap Risk: Swaps are subject to tracking risk because they may not be perfect substitutes for the instruments they are intended to hedge or replace. Over the counter swaps are subject to counterparty default. Leverage inherent in derivatives will tend to magnify the Fund’s losses. The swap agreements may reference standardized exchange-traded, FLEX, European Style or American Style put options contracts that are based on the values of the price returns of the Underlying Asset. that generate specific risks.
Counterparty Risk. Counterparty risk is the risk that a counterparty to a financial instrument held by the Fund or by a special purpose or structured vehicle invested in by the Fund may become insolvent or otherwise fail to perform its obligations, and the Fund may obtain no or limited recovery of its investment, and any recovery may be significantly delayed.
Over-the-Counter Market Risk. Securities and options traded in over-the-counter markets may trade less frequently and in limited volumes and thus exhibit more volatility and liquidity risk, and the prices paid by the Fund in over-the-counter transactions may include an undisclosed dealer markup. The Fund is also exposed to default by the over-the-counter option writer who may be unwilling or unable to perform its contractual obligations to the Fund.
In addition, a counterparty (the other party to a transaction or an agreement or the party with whom the Fund executes transactions) to a transaction (including repurchase transaction) with the Fund may be unable or unwilling to make timely principal, interest or settlement payments, or otherwise honor its obligations.
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| GraniteShares Autocallable CRWV ETF | Autocallable Structure Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Autocallable Structure Risk. The Fund’s returns are correlated to the performance of a theoretical portfolio of autocallables. Autocallables have specific structural features that may be unfamiliar to many investors:
Contingent Income Risk. Coupon payments from autocallables are not guaranteed and will not be made if the Underlying Asset falls below the Coupon Barrier on observation dates. This means the Fund may generate significantly less income than anticipated during market downturns. The expected absence of future coupon payments over the term of an autocallable could materially affect its value.
Early Redemption Risk. Autocallables may be called before their scheduled maturity if the Underlying Asset reaches or exceeds the Autocallable Barrier on observation dates. This automatic early redemption could force reinvestment of that portion of the portfolio at lower rates if market yields have declined.
Barrier Risk. If the Underlying Asset falls below the Maturity Barrier at the maturity of an autocallable, that portion of the portfolio will be fully exposed to the negative performance of the Underlying Asset from its initial level. For example, if the Underlying Asset has declined 45% at maturity of a particular autocallable, the portfolio allocated to that autocallable would lose 45% of its value. This conditional protection creates a binary outcome that can result in sudden, significant losses if barriers are breached.
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| GraniteShares Autocallable CRWV ETF | Calculation Methodology Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Calculation Methodology Risk. Autocallables rely on complex calculation methodologies that may not perform as expected under certain market conditions.
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| GraniteShares Autocallable CRWV ETF | Distribution Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective, the Fund seeks to provide current monthly income. There is no assurance that the Fund will make a distribution in any given month. If the Fund makes distributions, the amounts of such distributions will likely vary greatly from one distribution to the next. Additionally, the monthly distributions, if any, may consist of returns of capital, which would decrease the Fund’s NAV and trading price over time. As a result, an investor may suffer significant losses to their investment.
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| GraniteShares Autocallable CRWV ETF | NAV Erosion Risk Due to Distributions [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] |
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| GraniteShares Autocallable CRWV ETF | Option Market Liquidity Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Option Market Liquidity Risk. Liquidity risk exists when particular investments are difficult to purchase or sell. The Fund’s investments in illiquid investments may reduce the returns of the Fund because it may be unable to sell the illiquid investments at an advantageous time or price.
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| GraniteShares Autocallable CRWV ETF | Laddered Portfolio Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Laddered Portfolio Risk. A laddered portfolio strategy may not perform as expected if market conditions remain unfavorable over an extended period, multiple autocallable instruments may experience losses simultaneously and/or the reallocation across autocallable instruments may result in suboptimal entry points during rapidly changing markets. A portfolio of autocallables providing exposure to the same Underlying Asset may not be homogeneously affected by a change in that Underlying Asset price as the impact of such change may depend on the tenor of each autocallable. Depending on market conditions, requests to create and/or redeem shares in the Fund may result in the average tenor of the portfolio of autocallables held by the Fund to deviate from the average tenor the Fund intends to achieve.
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| GraniteShares Autocallable CRWV ETF | Concentration Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Concentration Risk. To the extent that the Underlying Asset concentrates its investments in a particular industry, the Fund will be subject to the risks associated with that industry.
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| GraniteShares Autocallable CRWV ETF | ETF Risks [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | ETF Risks.
Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that are authorized to purchase and redeem Shares directly from the Fund (known as “Authorized Participants” or “APs”). There are a limited number of financial institutions that post collateral for certain trades on an agency basis (i.e. on behalf of other market participants). In such circumstances, the Fund’s market price may be significantly different than its underlying net asset value. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services; or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
Cash Redemption Risk. The Fund currently expects to effect a significant portion of its creations and redemptions for cash, rather than in-kind securities. Paying redemption proceeds in cash rather than through in-kind delivery of portfolio securities may require the Fund to dispose of or sell portfolio securities or other assets at an inopportune time to obtain the cash needed to meet redemption orders. This may cause the Fund to sell a security and recognize a capital gain or loss that might not have been incurred if it had made a redemption in-kind. As a result, the Fund may pay out higher or lower annual capital gains distributions than ETFs that redeem in-kind. The use of cash creations and redemptions may also cause the Fund’s Shares to trade in the market at greater bid-ask spreads or greater premiums or discounts to the Fund’s NAV. Furthermore, the Fund may not be able to execute cash transactions for creation and redemption purposes at the same price used to determine the Fund’s NAV. To the extent that the maximum additional charge for creation or redemption transactions is insufficient to cover the execution shortfall, the Fund’s performance could be negatively impacted.
Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid-ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.
Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant.
Trading. Although Shares are listed on a national securities exchange, such as The Nasdaq Stock Market, LLC (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that an active trading market for the Shares will develop or be maintained or that the Shares will trade with any volume, or at all, on any stock exchange. This risk may be greater for the Fund as it seeks to have exposure to a single underlying stock as opposed to a more diverse portfolio like a traditional pooled investment. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares. Shares trade on the Exchange at a market price that may be below, at or above the Fund’s NAV. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged. In the event of an unscheduled market close for options contracts that reference a single stock, such as the Underlying Asset’s securities being halted or a market wide closure, settlement prices will be determined by the procedures of the listing exchange of the options contracts. As a result, the Fund could be adversely affected and be unable to implement its investment strategies in the event of an unscheduled closing.
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| GraniteShares Autocallable CRWV ETF | High Portfolio Turnover Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | High Portfolio Turnover Risk. The Fund may actively and frequently trade all or a significant portion of the Fund’s holdings. A high portfolio turnover rate increases transaction costs, which may increase the Fund’s expenses. Frequent trading may also cause adverse tax consequences for investors in the Fund due to an increase in short-term capital gains.
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| GraniteShares Autocallable CRWV ETF | Inflation Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the present value of the Fund’s assets and distributions, if any, may decline.
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| GraniteShares Autocallable CRWV ETF | Liquidity Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Liquidity Risk. Some securities held by the Fund, including options contracts, may be difficult to sell or be illiquid, particularly during times of market turmoil. This risk is greater for the Fund as it will hold options contracts on a single security, and not a broader range of options contracts. Markets for securities or financial instruments could be disrupted by a number of events, including, but not limited to, an economic crisis, natural disasters, epidemics/pandemics, new legislation or regulatory changes inside or outside the United States. Illiquid securities may be difficult to value, especially in changing or volatile markets. If the Fund is forced to sell an illiquid security at an unfavorable time or price, the Fund may be adversely impacted. Certain market conditions or restrictions, such as market rules related to short sales, may prevent the Fund from limiting losses, realizing gains or achieving a high correlation with the Underlying Asset. There is no assurance that a security that is deemed liquid when purchased will continue to be liquid. Market illiquidity may cause losses for the Fund.
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| GraniteShares Autocallable CRWV ETF | Management Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Management Risk. The Fund is subject to management risk because it is an actively managed portfolio. In managing the Fund’s investment portfolio, the portfolio managers will apply investment techniques and risk analyses that may not produce the desired result. There can be no guarantee that the Fund will meet its investment objective.
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| GraniteShares Autocallable CRWV ETF | Money Market Instrument Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Repurchase agreements are contracts in which a seller of securities agrees to buy the securities back at a specified time and price. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments, including money market funds, may lose money through fees or other means.
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| GraniteShares Autocallable CRWV ETF | New Fund Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | New Fund Risk. The Fund is a recently organized management investment company with no operating history. As a result, prospective investors do not have a track record or history on which to base their investment decisions.
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| GraniteShares Autocallable CRWV ETF | Non-Diversification Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Non-Diversification Risk. Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer or a smaller number of issuers than if it was a diversified fund. As a result, a decline in the value of an investment in a single issuer or a smaller number of issuers could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio.
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| GraniteShares Autocallable CRWV ETF | Operational Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Operational Risk. The Fund is subject to risks arising from various operational factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund relies on third-parties for a range of services, including custody. Any delay or failure relating to engaging or maintaining such service providers may affect the Fund’s ability to meet its investment objective. Although the Fund and the Adviser seek to reduce these operational risks through controls and procedures, there is no way to completely protect against such risks.
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| GraniteShares Autocallable CRWV ETF | Recent Market Events Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Recent Market Events Risk. U.S. and international markets have experienced significant periods of volatility in recent years due to a number of economic, political and global macro factors, including uncertainty regarding interest rates and inflation, rising government debt in the U.S. and elsewhere, political events, changes in trade policy and armed conflict. Public health emergencies, such as the COVID-19 pandemic, have in the past caused, and may in the future cause, disruptions to business operations and supply chains, reduced consumer demand and significant market volatility. Armed conflict, including the conflict between Russia and Ukraine and conflicts in the Middle East, has caused, and could continue to cause, loss of life and severe adverse effects on regional and global economies and on the markets for certain securities and commodities. The U.S., the European Union and other countries have imposed, and may impose additional, sanctions and other restrictive measures on certain countries, individuals and companies, which could adversely affect the issuers, markets and economies concerned. In addition, the U.S. has imposed, and may continue to impose, tariffs and other trade barriers, and other countries have imposed or may impose retaliatory measures. Trade disputes between the U.S. and other countries could result in additional tariffs, trade barriers and/or investment restrictions. These and other events could adversely affect the Fund’s performance, and their duration and full effects cannot be predicted.
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| GraniteShares Autocallable CRWV ETF | Single Issuer Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Single Issuer Risk. Issuer-specific attributes may cause an investment in the Fund to be more volatile than a traditional pooled investment vehicle which diversifies risk or the market generally. The value of the Fund, which focuses on an individual security (the Underlying Asset), may be more volatile than a traditional pooled investment or the market as a whole and may perform differently from the value of a traditional pooled investment or the market as a whole.
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| GraniteShares Autocallable CRWV ETF | Tax Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Tax Risk. The Fund intends to elect and to qualify each year to be treated as a RIC under Subchapter M of the Code. As a RIC, the Fund will not be subject to U.S. federal income tax on the portion of its net investment income and net capital gain that it distributes to Shareholders, provided that it satisfies certain requirements of the Code. If the Fund does not qualify as a RIC for any taxable year and certain relief provisions are not available, the Fund’s taxable income will be subject to tax at the Fund level and to a further tax at the shareholder level when such income is distributed. To comply with the asset diversification test applicable to a RIC, the Fund will attempt to ensure that the value of the derivatives it holds never exceed 25% of the total value of Fund assets at the close of any quarter. If the Fund’s investments in the derivatives were to exceed 25% of the Fund’s total assets at the end of a tax quarter, the Fund, generally, has a grace period to cure such lack of compliance. If the Fund fails to timely cure, it may no longer be eligible to be treated as a RIC. In addition, distributions received by the Fund from the Underlying Asset may generate “bad income” that could prevent the Fund from meeting the “Income Requirement” of Subchapter M of the Code, which may cause the Fund to fail to qualify as a RIC. The Fund intends to treat any income it may derive from the options and swap contracts as “qualifying income” under the provisions of the Code applicable to RICs. If the income is not qualifying income the Fund may lose its status as a RIC. The Fund will, for each year, distribute substantially all of its net investment income and net capital gains.
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| GraniteShares Autocallable CRWV ETF | Investing In U.S. Equities Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Investing in U.S. Equities Risk. Investing in U.S. issuers subjects the Fund to legal, regulatory, political, currency, security, and economic risks that are specific to the U.S. Certain changes in the U.S., such as a weakening of the U.S. economy or a decline in its financial markets, may have an adverse effect on U.S. issuers.
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| GraniteShares Autocallable CRWV ETF | Affiliated Etfs Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Affiliated ETFs Risk. The Fund may invest in equity securities of other ETFs for which the Adviser serves as investment adviser. It is possible that a conflict of interest may arise. Additionally, to the extent the Fund invests in the securities of another affiliated ETF, the Fund will be subject to the investment risks of the ETF. Shareholders of the Fund are subject to duplicative expenses to the extent of the Fund’s investment in any affiliated ETF. Finally, the shares of the ETFs in which the Fund may invest will be listed on a national securities exchange and the Fund will purchase or sell these shares on the secondary market at its current market price, which may be more or less than its net asset value per share.
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| GraniteShares Autocallable CRWV ETF | Box Spread E T F Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Box Spread ETF Risk. The Fund may invest in LBOX, an affiliated ETF advised by GraniteShares Advisors LLC, the Fund’s investment adviser, that employs a market-neutral box spread strategy to generate short-term, fixed-income-like returns. Box spread positions involve simultaneous long and short synthetic options positions on the same reference asset and are structured to capture an implied financing rate. While box spreads are designed to be market-neutral and to generate a return approximating prevailing short-term interest rates, they are subject to execution risk, counterparty risk with respect to the options positions, and the risk that the implied financing rate embedded in the box spread diverges from prevailing market rates in periods of market stress. The Fund’s investments in LBOX are made pursuant to Section 12(d)(1)(G) of the 1940 Act, which imposes no percentage-of-assets limits on the Fund’s investment in an exchange-traded fund. Accordingly, the Fund could, at any time, hold a material allocation in LBOX. The Fund’s adviser faces a conflict of interest in allocating Fund assets to an affiliated fund such as LBOX; see “Affiliated ETFs Risk.”
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| GraniteShares Autocallable CRWV ETF | U.S. Government And U.S. Agency Obligations Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | U.S. Government and U.S. Agency Obligations Risk. The Fund may invest in securities issued by the U.S. government or its agencies or instrumentalities. U.S. Government obligations include securities issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, such as the U.S. Treasury. Payment of principal and interest on U.S. Government obligations may be backed by the full faith and credit of the United States or may be backed solely by the issuing or guaranteeing agency or instrumentality itself. In the latter case, the investor must look principally to the agency or instrumentality issuing or guaranteeing the obligation for ultimate repayment, which agency or instrumentality may be privately owned. There can be no assurance that the U.S. Government would provide financial support to its agencies or instrumentalities (including government-sponsored enterprises) where it is not obligated to do so.
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| GraniteShares Autocallable CRWV ETF | Fixed Income Securities Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Fixed Income Securities Risk. The market value of Fixed Income Securities will change in response to interest rate changes and other factors, such as changes in the effective maturities and credit ratings of fixed income investments. During periods of falling interest rates, the values of outstanding Fixed Income Securities and related financial instruments generally rise. Conversely, during periods of rising interest rates, the values of such securities and related financial instruments generally decline. Fixed Income Securities are also subject to credit risk.
Investments in Fixed Income Securities may also involve the following risks, depending on the instrument involved:
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| GraniteShares Autocallable GOOGL ETF | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | PRINCIPAL RISKS OF INVESTING IN THE FUND
The principal risks of investing in the Fund are summarized below. As with any investment, there is a risk that you could lose all or a portion of your investment in the Fund. Each risk summarized below is considered a “principal risk” of investing in the Fund, regardless of the order in which it appears. Some or all of these risks may adversely affect the Fund’s net asset value per share (“NAV”), trading price, yield, total return and/or ability to meet its investment objectives. For more information about the risks of investing in the Fund, see the section in the Fund’s Prospectus titled “Additional Information About the Fund — Principal Risks of Investing in the Fund.”
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| GraniteShares Autocallable GOOGL ETF | Underlying Asset Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Underlying Asset Risk. The Underlying Asset is subject to many risks that can negatively impact its revenue and viability including, but are not limited to price volatility risk, management risk, inflation risk, global economic risk, growth risk, supply and demand risk, operations risk, regulatory risk, environmental risk, terrorism risk and the risk of natural disasters. The Underlying Asset performance may be affected by changes in advertising revenues, increased competition and ability to retain users and customers, its ability to enforce the company’s intellectual property rights, manufacturing and supply chain risks, global market conditions, cyber-attacks and changes in regulatory oversight. The Fund’s daily returns may be affected by many factors but will depend on the performance and volatility of the Underlying Asset.
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| GraniteShares Autocallable GOOGL ETF | Derivatives Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Derivatives Risk. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds, interest rates or indexes. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other ordinary investments, including risk related to the market, imperfect correlation with underlying investments, higher price volatility, lack of availability, counterparty risk, liquidity, valuation and legal restrictions. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. The use of derivatives may result in larger losses or smaller gains than directly investing in securities. When the Fund uses derivatives, there may be an imperfect correlation between the value of the Underlying Asset and the derivative, which may prevent the Fund from achieving its investment objectives. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of those amounts initially invested. In addition, the Fund’s investments in derivatives are subject to the following risks:
Options Contracts. The use of options contracts involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which are affected by fiscal and monetary policies and by national and international political, changes in the actual or implied volatility or the reference asset, the time remaining until the expiration of the option contract and economic events. For the Fund, in particular, the value of the options contracts in which it invests is substantially influenced by the value of the Underlying Asset. Selling put options exposes the Fund to the risk of potential loss if the market value of the Underlying Asset falls below the strike price before the option expires. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to such date, the value of an option generally does not increase or decrease at the same rate at the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the underlying instrument, and there may at times not be a liquid secondary market for certain options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. Additionally, the Fund’s practice of “rolling” may cause the Fund to experience losses if the expiring contracts do not generate proceeds enough to cover the costs of entering into new options contracts. Rolling refers to the practice of closing out one options position and opening another with a different expiration date and/or a different strike price. Further, if an option is exercised, the seller (writer) of a put option is obligated to purchase the underlying asset at the strike price, which can result in significant financial and regulatory obligations for the Fund if the market value of the asset has fallen substantially. Furthermore, when the Fund seeks to trade out of puts, especially near expiration, there is an added risk that the Fund may be required to allocate resources unexpectedly to fulfill these obligations. This potential exposure to physical settlement can significantly impact the Fund’s liquidity and market exposure, particularly in volatile market conditions.
Swap Risk: Swaps are subject to tracking risk because they may not be perfect substitutes for the instruments they are intended to hedge or replace. Over the counter swaps are subject to counterparty default. Leverage inherent in derivatives will tend to magnify the Fund’s losses. The swap agreements may reference standardized exchange-traded, FLEX, European Style or American Style put options contracts that are based on the values of the price returns of the Underlying Asset. that generate specific risks.
Counterparty Risk. Counterparty risk is the risk that a counterparty to a financial instrument held by the Fund or by a special purpose or structured vehicle invested in by the Fund may become insolvent or otherwise fail to perform its obligations, and the Fund may obtain no or limited recovery of its investment, and any recovery may be significantly delayed.
Over-the-Counter Market Risk. Securities and options traded in over-the-counter markets may trade less frequently and in limited volumes and thus exhibit more volatility and liquidity risk, and the prices paid by the Fund in over-the-counter transactions may include an undisclosed dealer markup. The Fund is also exposed to default by the over-the-counter option writer who may be unwilling or unable to perform its contractual obligations to the Fund.
In addition, a counterparty (the other party to a transaction or an agreement or the party with whom the Fund executes transactions) to a transaction (including repurchase transaction) with the Fund may be unable or unwilling to make timely principal, interest or settlement payments, or otherwise honor its obligations.
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| GraniteShares Autocallable GOOGL ETF | Autocallable Structure Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Autocallable Structure Risk. The Fund’s returns are correlated to the performance of a theoretical portfolio of autocallables. Autocallables have specific structural features that may be unfamiliar to many investors:
Contingent Income Risk. Coupon payments from autocallables are not guaranteed and will not be made if the Underlying Asset falls below the Coupon Barrier on observation dates. This means the Fund may generate significantly less income than anticipated during market downturns. The expected absence of future coupon payments over the term of an autocallable could materially affect its value.
Early Redemption Risk. Autocallables may be called before their scheduled maturity if the Underlying Asset reaches or exceeds the Autocallable Barrier on observation dates. This automatic early redemption could force reinvestment of that portion of the portfolio at lower rates if market yields have declined.
Barrier Risk. If the Underlying Asset falls below the Maturity Barrier at the maturity of an autocallable, that portion of the portfolio will be fully exposed to the negative performance of the Underlying Asset from its initial level. For example, if the Underlying Asset has declined 45% at maturity of a particular autocallable, the portfolio allocated to that autocallable would lose 45% of its value. This conditional protection creates a binary outcome that can result in sudden, significant losses if barriers are breached.
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| GraniteShares Autocallable GOOGL ETF | Calculation Methodology Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Calculation Methodology Risk. Autocallables rely on complex calculation methodologies that may not perform as expected under certain market conditions.
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| GraniteShares Autocallable GOOGL ETF | Distribution Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective, the Fund seeks to provide current monthly income. There is no assurance that the Fund will make a distribution in any given month. If the Fund makes distributions, the amounts of such distributions will likely vary greatly from one distribution to the next. Additionally, the monthly distributions, if any, may consist of returns of capital, which would decrease the Fund’s NAV and trading price over time. As a result, an investor may suffer significant losses to their investment.
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| GraniteShares Autocallable GOOGL ETF | NAV Erosion Risk Due to Distributions [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] |
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| GraniteShares Autocallable GOOGL ETF | Option Market Liquidity Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Option Market Liquidity Risk. Liquidity risk exists when particular investments are difficult to purchase or sell. The Fund’s investments in illiquid investments may reduce the returns of the Fund because it may be unable to sell the illiquid investments at an advantageous time or price.
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| GraniteShares Autocallable GOOGL ETF | Laddered Portfolio Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Laddered Portfolio Risk. A laddered portfolio strategy may not perform as expected if market conditions remain unfavorable over an extended period, multiple autocallable instruments may experience losses simultaneously and/or the reallocation across autocallable instruments may result in suboptimal entry points during rapidly changing markets. A portfolio of autocallables providing exposure to the same Underlying Asset may not be homogeneously affected by a change in that Underlying Asset price as the impact of such change may depend on the tenor of each autocallable. Depending on market conditions, requests to create and/or redeem shares in the Fund may result in the average tenor of the portfolio of autocallables held by the Fund to deviate from the average tenor the Fund intends to achieve.
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| GraniteShares Autocallable GOOGL ETF | Concentration Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Concentration Risk. To the extent that the Underlying Asset concentrates its investments in a particular industry, the Fund will be subject to the risks associated with that industry.
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| GraniteShares Autocallable GOOGL ETF | ETF Risks [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | ETF Risks.
Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that are authorized to purchase and redeem Shares directly from the Fund (known as “Authorized Participants” or “APs”). There are a limited number of financial institutions that post collateral for certain trades on an agency basis (i.e. on behalf of other market participants). In such circumstances, the Fund’s market price may be significantly different than its underlying net asset value. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services; or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
Cash Redemption Risk. The Fund currently expects to effect a significant portion of its creations and redemptions for cash, rather than in-kind securities. Paying redemption proceeds in cash rather than through in-kind delivery of portfolio securities may require the Fund to dispose of or sell portfolio securities or other assets at an inopportune time to obtain the cash needed to meet redemption orders. This may cause the Fund to sell a security and recognize a capital gain or loss that might not have been incurred if it had made a redemption in-kind. As a result, the Fund may pay out higher or lower annual capital gains distributions than ETFs that redeem in-kind. The use of cash creations and redemptions may also cause the Fund’s Shares to trade in the market at greater bid-ask spreads or greater premiums or discounts to the Fund’s NAV. Furthermore, the Fund may not be able to execute cash transactions for creation and redemption purposes at the same price used to determine the Fund’s NAV. To the extent that the maximum additional charge for creation or redemption transactions is insufficient to cover the execution shortfall, the Fund’s performance could be negatively impacted.
Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid-ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.
Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant.
Trading. Although Shares are listed on a national securities exchange, such as The Nasdaq Stock Market, LLC (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that an active trading market for the Shares will develop or be maintained or that the Shares will trade with any volume, or at all, on any stock exchange. This risk may be greater for the Fund as it seeks to have exposure to a single underlying stock as opposed to a more diverse portfolio like a traditional pooled investment. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares. Shares trade on the Exchange at a market price that may be below, at or above the Fund’s NAV. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged. In the event of an unscheduled market close for options contracts that reference a single stock, such as the Underlying Asset’s securities being halted or a market wide closure, settlement prices will be determined by the procedures of the listing exchange of the options contracts. As a result, the Fund could be adversely affected and be unable to implement its investment strategies in the event of an unscheduled closing.
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| GraniteShares Autocallable GOOGL ETF | High Portfolio Turnover Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | High Portfolio Turnover Risk. The Fund may actively and frequently trade all or a significant portion of the Fund’s holdings. A high portfolio turnover rate increases transaction costs, which may increase the Fund’s expenses. Frequent trading may also cause adverse tax consequences for investors in the Fund due to an increase in short-term capital gains.
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| GraniteShares Autocallable GOOGL ETF | Inflation Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the present value of the Fund’s assets and distributions, if any, may decline.
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| GraniteShares Autocallable GOOGL ETF | Liquidity Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Liquidity Risk. Some securities held by the Fund, including options contracts, may be difficult to sell or be illiquid, particularly during times of market turmoil. This risk is greater for the Fund as it will hold options contracts on a single security, and not a broader range of options contracts. Markets for securities or financial instruments could be disrupted by a number of events, including, but not limited to, an economic crisis, natural disasters, epidemics/pandemics, new legislation or regulatory changes inside or outside the United States. Illiquid securities may be difficult to value, especially in changing or volatile markets. If the Fund is forced to sell an illiquid security at an unfavorable time or price, the Fund may be adversely impacted. Certain market conditions or restrictions, such as market rules related to short sales, may prevent the Fund from limiting losses, realizing gains or achieving a high correlation with the Underlying Asset. There is no assurance that a security that is deemed liquid when purchased will continue to be liquid. Market illiquidity may cause losses for the Fund.
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| GraniteShares Autocallable GOOGL ETF | Management Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Management Risk. The Fund is subject to management risk because it is an actively managed portfolio. In managing the Fund’s investment portfolio, the portfolio managers will apply investment techniques and risk analyses that may not produce the desired result. There can be no guarantee that the Fund will meet its investment objective.
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| GraniteShares Autocallable GOOGL ETF | Money Market Instrument Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Repurchase agreements are contracts in which a seller of securities agrees to buy the securities back at a specified time and price. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments, including money market funds, may lose money through fees or other means.
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| GraniteShares Autocallable GOOGL ETF | New Fund Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | New Fund Risk. The Fund is a recently organized management investment company with no operating history. As a result, prospective investors do not have a track record or history on which to base their investment decisions.
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| GraniteShares Autocallable GOOGL ETF | Non-Diversification Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Non-Diversification Risk. Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer or a smaller number of issuers than if it was a diversified fund. As a result, a decline in the value of an investment in a single issuer or a smaller number of issuers could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio.
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| GraniteShares Autocallable GOOGL ETF | Operational Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Operational Risk. The Fund is subject to risks arising from various operational factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund relies on third-parties for a range of services, including custody. Any delay or failure relating to engaging or maintaining such service providers may affect the Fund’s ability to meet its investment objective. Although the Fund and the Adviser seek to reduce these operational risks through controls and procedures, there is no way to completely protect against such risks.
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| GraniteShares Autocallable GOOGL ETF | Recent Market Events Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Recent Market Events Risk. U.S. and international markets have experienced significant periods of volatility in recent years due to a number of economic, political and global macro factors, including uncertainty regarding interest rates and inflation, rising government debt in the U.S. and elsewhere, political events, changes in trade policy and armed conflict. Public health emergencies, such as the COVID-19 pandemic, have in the past caused, and may in the future cause, disruptions to business operations and supply chains, reduced consumer demand and significant market volatility. Armed conflict, including the conflict between Russia and Ukraine and conflicts in the Middle East, has caused, and could continue to cause, loss of life and severe adverse effects on regional and global economies and on the markets for certain securities and commodities. The U.S., the European Union and other countries have imposed, and may impose additional, sanctions and other restrictive measures on certain countries, individuals and companies, which could adversely affect the issuers, markets and economies concerned. In addition, the U.S. has imposed, and may continue to impose, tariffs and other trade barriers, and other countries have imposed or may impose retaliatory measures. Trade disputes between the U.S. and other countries could result in additional tariffs, trade barriers and/or investment restrictions. These and other events could adversely affect the Fund’s performance, and their duration and full effects cannot be predicted.
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| GraniteShares Autocallable GOOGL ETF | Single Issuer Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Single Issuer Risk. Issuer-specific attributes may cause an investment in the Fund to be more volatile than a traditional pooled investment vehicle which diversifies risk or the market generally. The value of the Fund, which focuses on an individual security (the Underlying Asset), may be more volatile than a traditional pooled investment or the market as a whole and may perform differently from the value of a traditional pooled investment or the market as a whole.
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| GraniteShares Autocallable GOOGL ETF | Tax Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Tax Risk. The Fund intends to elect and to qualify each year to be treated as a RIC under Subchapter M of the Code. As a RIC, the Fund will not be subject to U.S. federal income tax on the portion of its net investment income and net capital gain that it distributes to Shareholders, provided that it satisfies certain requirements of the Code. If the Fund does not qualify as a RIC for any taxable year and certain relief provisions are not available, the Fund’s taxable income will be subject to tax at the Fund level and to a further tax at the shareholder level when such income is distributed. To comply with the asset diversification test applicable to a RIC, the Fund will attempt to ensure that the value of the derivatives it holds never exceed 25% of the total value of Fund assets at the close of any quarter. If the Fund’s investments in the derivatives were to exceed 25% of the Fund’s total assets at the end of a tax quarter, the Fund, generally, has a grace period to cure such lack of compliance. If the Fund fails to timely cure, it may no longer be eligible to be treated as a RIC. In addition, distributions received by the Fund from the Underlying Asset may generate “bad income” that could prevent the Fund from meeting the “Income Requirement” of Subchapter M of the Code, which may cause the Fund to fail to qualify as a RIC. The Fund intends to treat any income it may derive from the options and swap contracts as “qualifying income” under the provisions of the Code applicable to RICs. If the income is not qualifying income the Fund may lose its status as a RIC. The Fund will, for each year, distribute substantially all of its net investment income and net capital gains.
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| GraniteShares Autocallable GOOGL ETF | Investing In U.S. Equities Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Investing in U.S. Equities Risk. Investing in U.S. issuers subjects the Fund to legal, regulatory, political, currency, security, and economic risks that are specific to the U.S. Certain changes in the U.S., such as a weakening of the U.S. economy or a decline in its financial markets, may have an adverse effect on U.S. issuers.
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| GraniteShares Autocallable GOOGL ETF | Affiliated Etfs Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Affiliated ETFs Risk. The Fund may invest in equity securities of other ETFs for which the Adviser serves as investment adviser. It is possible that a conflict of interest may arise. Additionally, to the extent the Fund invests in the securities of another affiliated ETF, the Fund will be subject to the investment risks of the ETF. Shareholders of the Fund are subject to duplicative expenses to the extent of the Fund’s investment in any affiliated ETF. Finally, the shares of the ETFs in which the Fund may invest will be listed on a national securities exchange and the Fund will purchase or sell these shares on the secondary market at its current market price, which may be more or less than its net asset value per share.
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| GraniteShares Autocallable GOOGL ETF | Box Spread E T F Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Box Spread ETF Risk. The Fund may invest in LBOX, an affiliated ETF advised by GraniteShares Advisors LLC, the Fund’s investment adviser, that employs a market-neutral box spread strategy to generate short-term, fixed-income-like returns. Box spread positions involve simultaneous long and short synthetic options positions on the same reference asset and are structured to capture an implied financing rate. While box spreads are designed to be market-neutral and to generate a return approximating prevailing short-term interest rates, they are subject to execution risk, counterparty risk with respect to the options positions, and the risk that the implied financing rate embedded in the box spread diverges from prevailing market rates in periods of market stress. The Fund’s investments in LBOX are made pursuant to Section 12(d)(1)(G) of the 1940 Act, which imposes no percentage-of-assets limits on the Fund’s investment in an exchange-traded fund. Accordingly, the Fund could, at any time, hold a material allocation in LBOX. The Fund’s adviser faces a conflict of interest in allocating Fund assets to an affiliated fund such as LBOX; see “Affiliated ETFs Risk.”
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| GraniteShares Autocallable GOOGL ETF | U.S. Government And U.S. Agency Obligations Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | U.S. Government and U.S. Agency Obligations Risk. The Fund may invest in securities issued by the U.S. government or its agencies or instrumentalities. U.S. Government obligations include securities issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, such as the U.S. Treasury. Payment of principal and interest on U.S. Government obligations may be backed by the full faith and credit of the United States or may be backed solely by the issuing or guaranteeing agency or instrumentality itself. In the latter case, the investor must look principally to the agency or instrumentality issuing or guaranteeing the obligation for ultimate repayment, which agency or instrumentality may be privately owned. There can be no assurance that the U.S. Government would provide financial support to its agencies or instrumentalities (including government-sponsored enterprises) where it is not obligated to do so.
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| GraniteShares Autocallable GOOGL ETF | Fixed Income Securities Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Fixed Income Securities Risk. The market value of Fixed Income Securities will change in response to interest rate changes and other factors, such as changes in the effective maturities and credit ratings of fixed income investments. During periods of falling interest rates, the values of outstanding Fixed Income Securities and related financial instruments generally rise. Conversely, during periods of rising interest rates, the values of such securities and related financial instruments generally decline. Fixed Income Securities are also subject to credit risk.
Investments in Fixed Income Securities may also involve the following risks, depending on the instrument involved:
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| GraniteShares Autocallable HIMS ETF | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | PRINCIPAL RISKS OF INVESTING IN THE FUND
The principal risks of investing in the Fund are summarized below. As with any investment, there is a risk that you could lose all or a portion of your investment in the Fund. Each risk summarized below is considered a “principal risk” of investing in the Fund, regardless of the order in which it appears. Some or all of these risks may adversely affect the Fund’s net asset value per share (“NAV”), trading price, yield, total return and/or ability to meet its investment objectives. For more information about the risks of investing in the Fund, see the section in the Fund’s Prospectus titled “Additional Information About the Fund — Principal Risks of Investing in the Fund.”
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| GraniteShares Autocallable HIMS ETF | Underlying Asset Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Underlying Asset Risk. The performance of the Underlying Asset, and consequently the Fund’s performance, is subject to the risks of the healthcare providers and services industry. The Underlying Asset is subject to many risks that can negatively impact its revenue and viability including, but are not limited to changing economic conditions, evolving patient demographics, and fluctuations in demand for healthcare services. Profitability in this industry is often dependent on reimbursement rates from government programs and private payors, as well as the ability to manage operational costs effectively. Changes in healthcare regulations and policies, including those related to insurance coverage and reimbursement, can materially impact the industry. Companies in the healthcare providers and services industry are subject to extensive and frequently changing government regulations, which may affect the scope of their activities, the rates they can charge for services, and their compliance costs. Additionally, the industry faces risks related to litigation, operational disruptions, and evolving technologies that may alter traditional service delivery models. The Fund’s daily returns may be affected by many factors but will depend on the performance and volatility of the Underlying Asset.
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| GraniteShares Autocallable HIMS ETF | Derivatives Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Derivatives Risk. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds, interest rates or indexes. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other ordinary investments, including risk related to the market, imperfect correlation with underlying investments, higher price volatility, lack of availability, counterparty risk, liquidity, valuation and legal restrictions. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. The use of derivatives may result in larger losses or smaller gains than directly investing in securities. When the Fund uses derivatives, there may be an imperfect correlation between the value of the Underlying Asset and the derivative, which may prevent the Fund from achieving its investment objectives. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of those amounts initially invested. In addition, the Fund’s investments in derivatives are subject to the following risks:
Options Contracts. The use of options contracts involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which are affected by fiscal and monetary policies and by national and international political, changes in the actual or implied volatility or the reference asset, the time remaining until the expiration of the option contract and economic events. For the Fund, in particular, the value of the options contracts in which it invests is substantially influenced by the value of the Underlying Asset. Selling put options exposes the Fund to the risk of potential loss if the market value of the Underlying Asset falls below the strike price before the option expires. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to such date, the value of an option generally does not increase or decrease at the same rate at the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the underlying instrument, and there may at times not be a liquid secondary market for certain options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. Additionally, the Fund’s practice of “rolling” may cause the Fund to experience losses if the expiring contracts do not generate proceeds enough to cover the costs of entering into new options contracts. Rolling refers to the practice of closing out one options position and opening another with a different expiration date and/or a different strike price. Further, if an option is exercised, the seller (writer) of a put option is obligated to purchase the underlying asset at the strike price, which can result in significant financial and regulatory obligations for the Fund if the market value of the asset has fallen substantially. Furthermore, when the Fund seeks to trade out of puts, especially near expiration, there is an added risk that the Fund may be required to allocate resources unexpectedly to fulfill these obligations. This potential exposure to physical settlement can significantly impact the Fund’s liquidity and market exposure, particularly in volatile market conditions.
Swap Risk: Swaps are subject to tracking risk because they may not be perfect substitutes for the instruments they are intended to hedge or replace. Over the counter swaps are subject to counterparty default. Leverage inherent in derivatives will tend to magnify the Fund’s losses. The swap agreements may reference standardized exchange-traded, FLEX, European Style or American Style put options contracts that are based on the values of the price returns of the Underlying Asset. that generate specific risks.
Counterparty Risk. Counterparty risk is the risk that a counterparty to a financial instrument held by the Fund or by a special purpose or structured vehicle invested in by the Fund may become insolvent or otherwise fail to perform its obligations, and the Fund may obtain no or limited recovery of its investment, and any recovery may be significantly delayed.
Over-the-Counter Market Risk. Securities and options traded in over-the-counter markets may trade less frequently and in limited volumes and thus exhibit more volatility and liquidity risk, and the prices paid by the Fund in over-the-counter transactions may include an undisclosed dealer markup. The Fund is also exposed to default by the over-the-counter option writer who may be unwilling or unable to perform its contractual obligations to the Fund.
In addition, a counterparty (the other party to a transaction or an agreement or the party with whom the Fund executes transactions) to a transaction (including repurchase transaction) with the Fund may be unable or unwilling to make timely principal, interest or settlement payments, or otherwise honor its obligations.
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| GraniteShares Autocallable HIMS ETF | Autocallable Structure Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Autocallable Structure Risk. The Fund’s returns are correlated to the performance of a theoretical portfolio of autocallables. Autocallables have specific structural features that may be unfamiliar to many investors:
Contingent Income Risk. Coupon payments from autocallables are not guaranteed and will not be made if the Underlying Asset falls below the Coupon Barrier on observation dates. This means the Fund may generate significantly less income than anticipated during market downturns. The expected absence of future coupon payments over the term of an autocallable could materially affect its value.
Early Redemption Risk. Autocallables may be called before their scheduled maturity if the Underlying Asset reaches or exceeds the Autocallable Barrier on observation dates. This automatic early redemption could force reinvestment of that portion of the portfolio at lower rates if market yields have declined.
Barrier Risk. If the Underlying Asset falls below the Maturity Barrier at the maturity of an autocallable, that portion of the portfolio will be fully exposed to the negative performance of the Underlying Asset from its initial level. For example, if the Underlying Asset has declined 45% at maturity of a particular autocallable, the portfolio allocated to that autocallable would lose 45% of its value. This conditional protection creates a binary outcome that can result in sudden, significant losses if barriers are breached.
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| GraniteShares Autocallable HIMS ETF | Calculation Methodology Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Calculation Methodology Risk. Autocallables rely on complex calculation methodologies that may not perform as expected under certain market conditions.
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| GraniteShares Autocallable HIMS ETF | Distribution Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective, the Fund seeks to provide current monthly income. There is no assurance that the Fund will make a distribution in any given month. If the Fund makes distributions, the amounts of such distributions will likely vary greatly from one distribution to the next. Additionally, the monthly distributions, if any, may consist of returns of capital, which would decrease the Fund’s NAV and trading price over time. As a result, an investor may suffer significant losses to their investment.
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| GraniteShares Autocallable HIMS ETF | NAV Erosion Risk Due to Distributions [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] |
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| GraniteShares Autocallable HIMS ETF | Option Market Liquidity Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Option Market Liquidity Risk. Liquidity risk exists when particular investments are difficult to purchase or sell. The Fund’s investments in illiquid investments may reduce the returns of the Fund because it may be unable to sell the illiquid investments at an advantageous time or price.
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| GraniteShares Autocallable HIMS ETF | Laddered Portfolio Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Laddered Portfolio Risk. A laddered portfolio strategy may not perform as expected if market conditions remain unfavorable over an extended period, multiple autocallable instruments may experience losses simultaneously and/or the reallocation across autocallable instruments may result in suboptimal entry points during rapidly changing markets. A portfolio of autocallables providing exposure to the same Underlying Asset may not be homogeneously affected by a change in that Underlying Asset price as the impact of such change may depend on the tenor of each autocallable. Depending on market conditions, requests to create and/or redeem shares in the Fund may result in the average tenor of the portfolio of autocallables held by the Fund to deviate from the average tenor the Fund intends to achieve.
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| GraniteShares Autocallable HIMS ETF | Concentration Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Concentration Risk. To the extent that the Underlying Asset concentrates its investments in a particular industry, the Fund will be subject to the risks associated with that industry.
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| GraniteShares Autocallable HIMS ETF | ETF Risks [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | ETF Risks.
Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that are authorized to purchase and redeem Shares directly from the Fund (known as “Authorized Participants” or “APs”). There are a limited number of financial institutions that post collateral for certain trades on an agency basis (i.e. on behalf of other market participants). In such circumstances, the Fund’s market price may be significantly different than its underlying net asset value. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services; or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
Cash Redemption Risk. The Fund currently expects to effect a significant portion of its creations and redemptions for cash, rather than in-kind securities. Paying redemption proceeds in cash rather than through in-kind delivery of portfolio securities may require the Fund to dispose of or sell portfolio securities or other assets at an inopportune time to obtain the cash needed to meet redemption orders. This may cause the Fund to sell a security and recognize a capital gain or loss that might not have been incurred if it had made a redemption in-kind. As a result, the Fund may pay out higher or lower annual capital gains distributions than ETFs that redeem in-kind. The use of cash creations and redemptions may also cause the Fund’s Shares to trade in the market at greater bid-ask spreads or greater premiums or discounts to the Fund’s NAV. Furthermore, the Fund may not be able to execute cash transactions for creation and redemption purposes at the same price used to determine the Fund’s NAV. To the extent that the maximum additional charge for creation or redemption transactions is insufficient to cover the execution shortfall, the Fund’s performance could be negatively impacted.
Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid-ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.
Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant.
Trading. Although Shares are listed on a national securities exchange, such as The Nasdaq Stock Market, LLC (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that an active trading market for the Shares will develop or be maintained or that the Shares will trade with any volume, or at all, on any stock exchange. This risk may be greater for the Fund as it seeks to have exposure to a single underlying stock as opposed to a more diverse portfolio like a traditional pooled investment. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares. Shares trade on the Exchange at a market price that may be below, at or above the Fund’s NAV. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged. In the event of an unscheduled market close for options contracts that reference a single stock, such as the Underlying Asset’s securities being halted or a market wide closure, settlement prices will be determined by the procedures of the listing exchange of the options contracts. As a result, the Fund could be adversely affected and be unable to implement its investment strategies in the event of an unscheduled closing.
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| GraniteShares Autocallable HIMS ETF | High Portfolio Turnover Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | High Portfolio Turnover Risk. The Fund may actively and frequently trade all or a significant portion of the Fund’s holdings. A high portfolio turnover rate increases transaction costs, which may increase the Fund’s expenses. Frequent trading may also cause adverse tax consequences for investors in the Fund due to an increase in short-term capital gains.
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| GraniteShares Autocallable HIMS ETF | Inflation Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the present value of the Fund’s assets and distributions, if any, may decline.
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| GraniteShares Autocallable HIMS ETF | Liquidity Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Liquidity Risk. Some securities held by the Fund, including options contracts, may be difficult to sell or be illiquid, particularly during times of market turmoil. This risk is greater for the Fund as it will hold options contracts on a single security, and not a broader range of options contracts. Markets for securities or financial instruments could be disrupted by a number of events, including, but not limited to, an economic crisis, natural disasters, epidemics/pandemics, new legislation or regulatory changes inside or outside the United States. Illiquid securities may be difficult to value, especially in changing or volatile markets. If the Fund is forced to sell an illiquid security at an unfavorable time or price, the Fund may be adversely impacted. Certain market conditions or restrictions, such as market rules related to short sales, may prevent the Fund from limiting losses, realizing gains or achieving a high correlation with the Underlying Asset. There is no assurance that a security that is deemed liquid when purchased will continue to be liquid. Market illiquidity may cause losses for the Fund.
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| GraniteShares Autocallable HIMS ETF | Management Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Management Risk. The Fund is subject to management risk because it is an actively managed portfolio. In managing the Fund’s investment portfolio, the portfolio managers will apply investment techniques and risk analyses that may not produce the desired result. There can be no guarantee that the Fund will meet its investment objective.
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| GraniteShares Autocallable HIMS ETF | Money Market Instrument Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Repurchase agreements are contracts in which a seller of securities agrees to buy the securities back at a specified time and price. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments, including money market funds, may lose money through fees or other means.
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| GraniteShares Autocallable HIMS ETF | New Fund Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | New Fund Risk. The Fund is a recently organized management investment company with no operating history. As a result, prospective investors do not have a track record or history on which to base their investment decisions.
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| GraniteShares Autocallable HIMS ETF | Non-Diversification Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Non-Diversification Risk. Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer or a smaller number of issuers than if it was a diversified fund. As a result, a decline in the value of an investment in a single issuer or a smaller number of issuers could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio.
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| GraniteShares Autocallable HIMS ETF | Operational Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Operational Risk. The Fund is subject to risks arising from various operational factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund relies on third-parties for a range of services, including custody. Any delay or failure relating to engaging or maintaining such service providers may affect the Fund’s ability to meet its investment objective. Although the Fund and the Adviser seek to reduce these operational risks through controls and procedures, there is no way to completely protect against such risks.
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| GraniteShares Autocallable HIMS ETF | Recent Market Events Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Recent Market Events Risk. U.S. and international markets have experienced significant periods of volatility in recent years due to a number of economic, political and global macro factors, including uncertainty regarding interest rates and inflation, rising government debt in the U.S. and elsewhere, political events, changes in trade policy and armed conflict. Public health emergencies, such as the COVID-19 pandemic, have in the past caused, and may in the future cause, disruptions to business operations and supply chains, reduced consumer demand and significant market volatility. Armed conflict, including the conflict between Russia and Ukraine and conflicts in the Middle East, has caused, and could continue to cause, loss of life and severe adverse effects on regional and global economies and on the markets for certain securities and commodities. The U.S., the European Union and other countries have imposed, and may impose additional, sanctions and other restrictive measures on certain countries, individuals and companies, which could adversely affect the issuers, markets and economies concerned. In addition, the U.S. has imposed, and may continue to impose, tariffs and other trade barriers, and other countries have imposed or may impose retaliatory measures. Trade disputes between the U.S. and other countries could result in additional tariffs, trade barriers and/or investment restrictions. These and other events could adversely affect the Fund’s performance, and their duration and full effects cannot be predicted.
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| GraniteShares Autocallable HIMS ETF | Single Issuer Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Single Issuer Risk. Issuer-specific attributes may cause an investment in the Fund to be more volatile than a traditional pooled investment vehicle which diversifies risk or the market generally. The value of the Fund, which focuses on an individual security (the Underlying Asset), may be more volatile than a traditional pooled investment or the market as a whole and may perform differently from the value of a traditional pooled investment or the market as a whole.
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| GraniteShares Autocallable HIMS ETF | Tax Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Tax Risk. The Fund intends to elect and to qualify each year to be treated as a RIC under Subchapter M of the Code. As a RIC, the Fund will not be subject to U.S. federal income tax on the portion of its net investment income and net capital gain that it distributes to Shareholders, provided that it satisfies certain requirements of the Code. If the Fund does not qualify as a RIC for any taxable year and certain relief provisions are not available, the Fund’s taxable income will be subject to tax at the Fund level and to a further tax at the shareholder level when such income is distributed. To comply with the asset diversification test applicable to a RIC, the Fund will attempt to ensure that the value of the derivatives it holds never exceed 25% of the total value of Fund assets at the close of any quarter. If the Fund’s investments in the derivatives were to exceed 25% of the Fund’s total assets at the end of a tax quarter, the Fund, generally, has a grace period to cure such lack of compliance. If the Fund fails to timely cure, it may no longer be eligible to be treated as a RIC. In addition, distributions received by the Fund from the Underlying Asset may generate “bad income” that could prevent the Fund from meeting the “Income Requirement” of Subchapter M of the Code, which may cause the Fund to fail to qualify as a RIC. The Fund intends to treat any income it may derive from the options and swap contracts as “qualifying income” under the provisions of the Code applicable to RICs. If the income is not qualifying income the Fund may lose its status as a RIC. The Fund will, for each year, distribute substantially all of its net investment income and net capital gains.
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| GraniteShares Autocallable HIMS ETF | Investing In U.S. Equities Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Investing in U.S. Equities Risk. Investing in U.S. issuers subjects the Fund to legal, regulatory, political, currency, security, and economic risks that are specific to the U.S. Certain changes in the U.S., such as a weakening of the U.S. economy or a decline in its financial markets, may have an adverse effect on U.S. issuers.
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| GraniteShares Autocallable HIMS ETF | Affiliated Etfs Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Affiliated ETFs Risk. The Fund may invest in equity securities of other ETFs for which the Adviser serves as investment adviser. It is possible that a conflict of interest may arise. Additionally, to the extent the Fund invests in the securities of another affiliated ETF, the Fund will be subject to the investment risks of the ETF. Shareholders of the Fund are subject to duplicative expenses to the extent of the Fund’s investment in any affiliated ETF. Finally, the shares of the ETFs in which the Fund may invest will be listed on a national securities exchange and the Fund will purchase or sell these shares on the secondary market at its current market price, which may be more or less than its net asset value per share.
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| GraniteShares Autocallable HIMS ETF | Box Spread E T F Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Box Spread ETF Risk. The Fund may invest in LBOX, an affiliated ETF advised by GraniteShares Advisors LLC, the Fund’s investment adviser, that employs a market-neutral box spread strategy to generate short-term, fixed-income-like returns. Box spread positions involve simultaneous long and short synthetic options positions on the same reference asset and are structured to capture an implied financing rate. While box spreads are designed to be market-neutral and to generate a return approximating prevailing short-term interest rates, they are subject to execution risk, counterparty risk with respect to the options positions, and the risk that the implied financing rate embedded in the box spread diverges from prevailing market rates in periods of market stress. The Fund’s investments in LBOX are made pursuant to Section 12(d)(1)(G) of the 1940 Act, which imposes no percentage-of-assets limits on the Fund’s investment in an exchange-traded fund. Accordingly, the Fund could, at any time, hold a material allocation in LBOX. The Fund’s adviser faces a conflict of interest in allocating Fund assets to an affiliated fund such as LBOX; see “Affiliated ETFs Risk.”
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| GraniteShares Autocallable HIMS ETF | U.S. Government And U.S. Agency Obligations Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | U.S. Government and U.S. Agency Obligations Risk. The Fund may invest in securities issued by the U.S. government or its agencies or instrumentalities. U.S. Government obligations include securities issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, such as the U.S. Treasury. Payment of principal and interest on U.S. Government obligations may be backed by the full faith and credit of the United States or may be backed solely by the issuing or guaranteeing agency or instrumentality itself. In the latter case, the investor must look principally to the agency or instrumentality issuing or guaranteeing the obligation for ultimate repayment, which agency or instrumentality may be privately owned. There can be no assurance that the U.S. Government would provide financial support to its agencies or instrumentalities (including government-sponsored enterprises) where it is not obligated to do so.
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| GraniteShares Autocallable HIMS ETF | Fixed Income Securities Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Fixed Income Securities Risk. The market value of Fixed Income Securities will change in response to interest rate changes and other factors, such as changes in the effective maturities and credit ratings of fixed income investments. During periods of falling interest rates, the values of outstanding Fixed Income Securities and related financial instruments generally rise. Conversely, during periods of rising interest rates, the values of such securities and related financial instruments generally decline. Fixed Income Securities are also subject to credit risk.
Investments in Fixed Income Securities may also involve the following risks, depending on the instrument involved:
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| GraniteShares Autocallable HOOD ETF | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | PRINCIPAL RISKS OF INVESTING IN THE FUND
The principal risks of investing in the Fund are summarized below. As with any investment, there is a risk that you could lose all or a portion of your investment in the Fund. Each risk summarized below is considered a “principal risk” of investing in the Fund, regardless of the order in which it appears. Some or all of these risks may adversely affect the Fund’s net asset value per share (“NAV”), trading price, yield, total return and/or ability to meet its investment objectives. For more information about the risks of investing in the Fund, see the section in the Fund’s Prospectus titled “Additional Information About the Fund — Principal Risks of Investing in the Fund.”
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| GraniteShares Autocallable HOOD ETF | Underlying Asset Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Underlying Asset Risk. The performance of the Underlying Asset, and consequently the Fund’s performance, is subject to the risks of the investment banking and brokerage industry. The Underlying Asset is subject to many risks that can negatively impact its revenue and viability including, but are not limited to price volatility risk, management risk, inflation risk, global economic risk, growth risk, supply and demand risk, operations risk, regulatory risk, environmental risk, terrorism risk and the risk of natural disasters. The Underlying Asset operates in a heavily regulated and supervised environment. The impact interpretation, and enforcement of new rules can have major impacts on its operations. The Underlying Asset has material exposure to market, credit, and liquidity risks. The Underlying Asset relies on complex systems, and its inability to operate them accurately and timely could materially impact its ability to operate. The Underlying Asset may be significantly affected by stock and bank trading activity, continuing increases in price competition, decreases in fees or fee-related business, including investment banking, brokerage, asset management and other servicing fees, fluctuation in interest rates and other factors which could adversely affect financial markets. The Fund’s daily returns may be affected by many factors but will depend on the performance and volatility of the Underlying Asset.
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| GraniteShares Autocallable HOOD ETF | Derivatives Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Derivatives Risk. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds, interest rates or indexes. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other ordinary investments, including risk related to the market, imperfect correlation with underlying investments, higher price volatility, lack of availability, counterparty risk, liquidity, valuation and legal restrictions. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. The use of derivatives may result in larger losses or smaller gains than directly investing in securities. When the Fund uses derivatives, there may be an imperfect correlation between the value of the Underlying Asset and the derivative, which may prevent the Fund from achieving its investment objectives. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of those amounts initially invested. In addition, the Fund’s investments in derivatives are subject to the following risks:
Options Contracts. The use of options contracts involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which are affected by fiscal and monetary policies and by national and international political, changes in the actual or implied volatility or the reference asset, the time remaining until the expiration of the option contract and economic events. For the Fund, in particular, the value of the options contracts in which it invests is substantially influenced by the value of the Underlying Asset. Selling put options exposes the Fund to the risk of potential loss if the market value of the Underlying Asset falls below the strike price before the option expires. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to such date, the value of an option generally does not increase or decrease at the same rate at the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the underlying instrument, and there may at times not be a liquid secondary market for certain options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. Additionally, the Fund’s practice of “rolling” may cause the Fund to experience losses if the expiring contracts do not generate proceeds enough to cover the costs of entering into new options contracts. Rolling refers to the practice of closing out one options position and opening another with a different expiration date and/or a different strike price. Further, if an option is exercised, the seller (writer) of a put option is obligated to purchase the underlying asset at the strike price, which can result in significant financial and regulatory obligations for the Fund if the market value of the asset has fallen substantially. Furthermore, when the Fund seeks to trade out of puts, especially near expiration, there is an added risk that the Fund may be required to allocate resources unexpectedly to fulfill these obligations. This potential exposure to physical settlement can significantly impact the Fund’s liquidity and market exposure, particularly in volatile market conditions.
Swap Risk: Swaps are subject to tracking risk because they may not be perfect substitutes for the instruments they are intended to hedge or replace. Over the counter swaps are subject to counterparty default. Leverage inherent in derivatives will tend to magnify the Fund’s losses. The swap agreements may reference standardized exchange-traded, FLEX, European Style or American Style put options contracts that are based on the values of the price returns of the Underlying Asset. that generate specific risks.
Counterparty Risk. Counterparty risk is the risk that a counterparty to a financial instrument held by the Fund or by a special purpose or structured vehicle invested in by the Fund may become insolvent or otherwise fail to perform its obligations, and the Fund may obtain no or limited recovery of its investment, and any recovery may be significantly delayed.
Over-the-Counter Market Risk. Securities and options traded in over-the-counter markets may trade less frequently and in limited volumes and thus exhibit more volatility and liquidity risk, and the prices paid by the Fund in over-the-counter transactions may include an undisclosed dealer markup. The Fund is also exposed to default by the over-the-counter option writer who may be unwilling or unable to perform its contractual obligations to the Fund.
In addition, a counterparty (the other party to a transaction or an agreement or the party with whom the Fund executes transactions) to a transaction (including repurchase transaction) with the Fund may be unable or unwilling to make timely principal, interest or settlement payments, or otherwise honor its obligations.
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| GraniteShares Autocallable HOOD ETF | Autocallable Structure Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Autocallable Structure Risk. The Fund’s returns are correlated to the performance of a theoretical portfolio of autocallables. Autocallables have specific structural features that may be unfamiliar to many investors:
Contingent Income Risk. Coupon payments from autocallables are not guaranteed and will not be made if the Underlying Asset falls below the Coupon Barrier on observation dates. This means the Fund may generate significantly less income than anticipated during market downturns. The expected absence of future coupon payments over the term of an autocallable could materially affect its value.
Early Redemption Risk. Autocallables may be called before their scheduled maturity if the Underlying Asset reaches or exceeds the Autocallable Barrier on observation dates. This automatic early redemption could force reinvestment of that portion of the portfolio at lower rates if market yields have declined.
Barrier Risk. If the Underlying Asset falls below the Maturity Barrier at the maturity of an autocallable, that portion of the portfolio will be fully exposed to the negative performance of the Underlying Asset from its initial level. For example, if the Underlying Asset has declined 45% at maturity of a particular autocallable, the portfolio allocated to that autocallable would lose 45% of its value. This conditional protection creates a binary outcome that can result in sudden, significant losses if barriers are breached.
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| GraniteShares Autocallable HOOD ETF | Calculation Methodology Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Calculation Methodology Risk. Autocallables rely on complex calculation methodologies that may not perform as expected under certain market conditions.
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| GraniteShares Autocallable HOOD ETF | Distribution Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective, the Fund seeks to provide current monthly income. There is no assurance that the Fund will make a distribution in any given month. If the Fund makes distributions, the amounts of such distributions will likely vary greatly from one distribution to the next. Additionally, the monthly distributions, if any, may consist of returns of capital, which would decrease the Fund’s NAV and trading price over time. As a result, an investor may suffer significant losses to their investment.
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| GraniteShares Autocallable HOOD ETF | NAV Erosion Risk Due to Distributions [Member] | |||||||||||||||||||
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| Risk [Text Block] |
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| GraniteShares Autocallable HOOD ETF | Option Market Liquidity Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Option Market Liquidity Risk. Liquidity risk exists when particular investments are difficult to purchase or sell. The Fund’s investments in illiquid investments may reduce the returns of the Fund because it may be unable to sell the illiquid investments at an advantageous time or price.
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| GraniteShares Autocallable HOOD ETF | Laddered Portfolio Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Laddered Portfolio Risk. A laddered portfolio strategy may not perform as expected if market conditions remain unfavorable over an extended period, multiple autocallable instruments may experience losses simultaneously and/or the reallocation across autocallable instruments may result in suboptimal entry points during rapidly changing markets. A portfolio of autocallables providing exposure to the same Underlying Asset may not be homogeneously affected by a change in that Underlying Asset price as the impact of such change may depend on the tenor of each autocallable. Depending on market conditions, requests to create and/or redeem shares in the Fund may result in the average tenor of the portfolio of autocallables held by the Fund to deviate from the average tenor the Fund intends to achieve.
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| GraniteShares Autocallable HOOD ETF | Concentration Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Concentration Risk. To the extent that the Underlying Asset concentrates its investments in a particular industry, the Fund will be subject to the risks associated with that industry.
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| GraniteShares Autocallable HOOD ETF | ETF Risks [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | ETF Risks.
Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that are authorized to purchase and redeem Shares directly from the Fund (known as “Authorized Participants” or “APs”). There are a limited number of financial institutions that post collateral for certain trades on an agency basis (i.e. on behalf of other market participants). In such circumstances, the Fund’s market price may be significantly different than its underlying net asset value. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services; or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
Cash Redemption Risk. The Fund currently expects to effect a significant portion of its creations and redemptions for cash, rather than in-kind securities. Paying redemption proceeds in cash rather than through in-kind delivery of portfolio securities may require the Fund to dispose of or sell portfolio securities or other assets at an inopportune time to obtain the cash needed to meet redemption orders. This may cause the Fund to sell a security and recognize a capital gain or loss that might not have been incurred if it had made a redemption in-kind. As a result, the Fund may pay out higher or lower annual capital gains distributions than ETFs that redeem in-kind. The use of cash creations and redemptions may also cause the Fund’s Shares to trade in the market at greater bid-ask spreads or greater premiums or discounts to the Fund’s NAV. Furthermore, the Fund may not be able to execute cash transactions for creation and redemption purposes at the same price used to determine the Fund’s NAV. To the extent that the maximum additional charge for creation or redemption transactions is insufficient to cover the execution shortfall, the Fund’s performance could be negatively impacted.
Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid-ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.
Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant.
Trading. Although Shares are listed on a national securities exchange, such as The Nasdaq Stock Market, LLC (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that an active trading market for the Shares will develop or be maintained or that the Shares will trade with any volume, or at all, on any stock exchange. This risk may be greater for the Fund as it seeks to have exposure to a single underlying stock as opposed to a more diverse portfolio like a traditional pooled investment. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares. Shares trade on the Exchange at a market price that may be below, at or above the Fund’s NAV. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged. In the event of an unscheduled market close for options contracts that reference a single stock, such as the Underlying Asset’s securities being halted or a market wide closure, settlement prices will be determined by the procedures of the listing exchange of the options contracts. As a result, the Fund could be adversely affected and be unable to implement its investment strategies in the event of an unscheduled closing.
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| GraniteShares Autocallable HOOD ETF | High Portfolio Turnover Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | High Portfolio Turnover Risk. The Fund may actively and frequently trade all or a significant portion of the Fund’s holdings. A high portfolio turnover rate increases transaction costs, which may increase the Fund’s expenses. Frequent trading may also cause adverse tax consequences for investors in the Fund due to an increase in short-term capital gains.
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| GraniteShares Autocallable HOOD ETF | Inflation Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the present value of the Fund’s assets and distributions, if any, may decline.
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| GraniteShares Autocallable HOOD ETF | Liquidity Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Liquidity Risk. Some securities held by the Fund, including options contracts, may be difficult to sell or be illiquid, particularly during times of market turmoil. This risk is greater for the Fund as it will hold options contracts on a single security, and not a broader range of options contracts. Markets for securities or financial instruments could be disrupted by a number of events, including, but not limited to, an economic crisis, natural disasters, epidemics/pandemics, new legislation or regulatory changes inside or outside the United States. Illiquid securities may be difficult to value, especially in changing or volatile markets. If the Fund is forced to sell an illiquid security at an unfavorable time or price, the Fund may be adversely impacted. Certain market conditions or restrictions, such as market rules related to short sales, may prevent the Fund from limiting losses, realizing gains or achieving a high correlation with the Underlying Asset. There is no assurance that a security that is deemed liquid when purchased will continue to be liquid. Market illiquidity may cause losses for the Fund.
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| GraniteShares Autocallable HOOD ETF | Management Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Management Risk. The Fund is subject to management risk because it is an actively managed portfolio. In managing the Fund’s investment portfolio, the portfolio managers will apply investment techniques and risk analyses that may not produce the desired result. There can be no guarantee that the Fund will meet its investment objective.
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| GraniteShares Autocallable HOOD ETF | Money Market Instrument Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Repurchase agreements are contracts in which a seller of securities agrees to buy the securities back at a specified time and price. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments, including money market funds, may lose money through fees or other means.
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| GraniteShares Autocallable HOOD ETF | New Fund Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | New Fund Risk. The Fund is a recently organized management investment company with limited operating history. As a result, prospective investors do not have a track record or history on which to base their investment decisions.
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| GraniteShares Autocallable HOOD ETF | Non-Diversification Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Non-Diversification Risk. Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer or a smaller number of issuers than if it was a diversified fund. As a result, a decline in the value of an investment in a single issuer or a smaller number of issuers could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio.
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| GraniteShares Autocallable HOOD ETF | Operational Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Operational Risk. The Fund is subject to risks arising from various operational factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund relies on third-parties for a range of services, including custody. Any delay or failure relating to engaging or maintaining such service providers may affect the Fund’s ability to meet its investment objective. Although the Fund and the Adviser seek to reduce these operational risks through controls and procedures, there is no way to completely protect against such risks.
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| GraniteShares Autocallable HOOD ETF | Recent Market Events Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Recent Market Events Risk. U.S. and international markets have experienced significant periods of volatility in recent years due to a number of economic, political and global macro factors, including uncertainty regarding interest rates and inflation, rising government debt in the U.S. and elsewhere, political events, changes in trade policy and armed conflict. Public health emergencies, such as the COVID-19 pandemic, have in the past caused, and may in the future cause, disruptions to business operations and supply chains, reduced consumer demand and significant market volatility. Armed conflict, including the conflict between Russia and Ukraine and conflicts in the Middle East, has caused, and could continue to cause, loss of life and severe adverse effects on regional and global economies and on the markets for certain securities and commodities. The U.S., the European Union and other countries have imposed, and may impose additional, sanctions and other restrictive measures on certain countries, individuals and companies, which could adversely affect the issuers, markets and economies concerned. In addition, the U.S. has imposed, and may continue to impose, tariffs and other trade barriers, and other countries have imposed or may impose retaliatory measures. Trade disputes between the U.S. and other countries could result in additional tariffs, trade barriers and/or investment restrictions. These and other events could adversely affect the Fund’s performance, and their duration and full effects cannot be predicted.
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| GraniteShares Autocallable HOOD ETF | Single Issuer Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Single Issuer Risk. Issuer-specific attributes may cause an investment in the Fund to be more volatile than a traditional pooled investment vehicle which diversifies risk or the market generally. The value of the Fund, which focuses on an individual security (the Underlying Asset), may be more volatile than a traditional pooled investment or the market as a whole and may perform differently from the value of a traditional pooled investment or the market as a whole.
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| GraniteShares Autocallable HOOD ETF | Tax Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Tax Risk. The Fund intends to elect and to qualify each year to be treated as a RIC under Subchapter M of the Code. As a RIC, the Fund will not be subject to U.S. federal income tax on the portion of its net investment income and net capital gain that it distributes to Shareholders, provided that it satisfies certain requirements of the Code. If the Fund does not qualify as a RIC for any taxable year and certain relief provisions are not available, the Fund’s taxable income will be subject to tax at the Fund level and to a further tax at the shareholder level when such income is distributed. To comply with the asset diversification test applicable to a RIC, the Fund will attempt to ensure that the value of the derivatives it holds never exceed 25% of the total value of Fund assets at the close of any quarter. If the Fund’s investments in the derivatives were to exceed 25% of the Fund’s total assets at the end of a tax quarter, the Fund, generally, has a grace period to cure such lack of compliance. If the Fund fails to timely cure, it may no longer be eligible to be treated as a RIC. In addition, distributions received by the Fund from the Underlying Asset may generate “bad income” that could prevent the Fund from meeting the “Income Requirement” of Subchapter M of the Code, which may cause the Fund to fail to qualify as a RIC. The Fund intends to treat any income it may derive from the options and swap contracts as “qualifying income” under the provisions of the Code applicable to RICs. If the income is not qualifying income the Fund may lose its status as a RIC. The Fund will, for each year, distribute substantially all of its net investment income and net capital gains.
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| GraniteShares Autocallable HOOD ETF | Investing In U.S. Equities Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Investing in U.S. Equities Risk. Investing in U.S. issuers subjects the Fund to legal, regulatory, political, currency, security, and economic risks that are specific to the U.S. Certain changes in the U.S., such as a weakening of the U.S. economy or a decline in its financial markets, may have an adverse effect on U.S. issuers.
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| GraniteShares Autocallable HOOD ETF | Affiliated Etfs Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Affiliated ETFs Risk. The Fund may invest in equity securities of other ETFs for which the Adviser serves as investment adviser. It is possible that a conflict of interest may arise. Additionally, to the extent the Fund invests in the securities of another affiliated ETF, the Fund will be subject to the investment risks of the ETF. Shareholders of the Fund are subject to duplicative expenses to the extent of the Fund’s investment in any affiliated ETF. Finally, the shares of the ETFs in which the Fund may invest will be listed on a national securities exchange and the Fund will purchase or sell these shares on the secondary market at its current market price, which may be more or less than its net asset value per share.
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| GraniteShares Autocallable HOOD ETF | Box Spread E T F Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Box Spread ETF Risk. The Fund may invest in LBOX, an affiliated ETF advised by GraniteShares Advisors LLC, the Fund’s investment adviser, that employs a market-neutral box spread strategy to generate short-term, fixed-income-like returns. Box spread positions involve simultaneous long and short synthetic options positions on the same reference asset and are structured to capture an implied financing rate. While box spreads are designed to be market-neutral and to generate a return approximating prevailing short-term interest rates, they are subject to execution risk, counterparty risk with respect to the options positions, and the risk that the implied financing rate embedded in the box spread diverges from prevailing market rates in periods of market stress. The Fund’s investments in LBOX are made pursuant to Section 12(d)(1)(G) of the 1940 Act, which imposes no percentage-of-assets limits on the Fund’s investment in an exchange-traded fund. Accordingly, the Fund could, at any time, hold a material allocation in LBOX. The Fund’s adviser faces a conflict of interest in allocating Fund assets to an affiliated fund such as LBOX; see “Affiliated ETFs Risk.”
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| GraniteShares Autocallable HOOD ETF | U.S. Government And U.S. Agency Obligations Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | U.S. Government and U.S. Agency Obligations Risk. The Fund may invest in securities issued by the U.S. government or its agencies or instrumentalities. U.S. Government obligations include securities issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, such as the U.S. Treasury. Payment of principal and interest on U.S. Government obligations may be backed by the full faith and credit of the United States or may be backed solely by the issuing or guaranteeing agency or instrumentality itself. In the latter case, the investor must look principally to the agency or instrumentality issuing or guaranteeing the obligation for ultimate repayment, which agency or instrumentality may be privately owned. There can be no assurance that the U.S. Government would provide financial support to its agencies or instrumentalities (including government-sponsored enterprises) where it is not obligated to do so.
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| GraniteShares Autocallable HOOD ETF | Fixed Income Securities Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Fixed Income Securities Risk. The market value of Fixed Income Securities will change in response to interest rate changes and other factors, such as changes in the effective maturities and credit ratings of fixed income investments. During periods of falling interest rates, the values of outstanding Fixed Income Securities and related financial instruments generally rise. Conversely, during periods of rising interest rates, the values of such securities and related financial instruments generally decline. Fixed Income Securities are also subject to credit risk.
Investments in Fixed Income Securities may also involve the following risks, depending on the instrument involved:
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| GraniteShares Autocallable INTC ETF | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | PRINCIPAL RISKS OF INVESTING IN THE FUND
The principal risks of investing in the Fund are summarized below. As with any investment, there is a risk that you could lose all or a portion of your investment in the Fund. Each risk summarized below is considered a “principal risk” of investing in the Fund, regardless of the order in which it appears. Some or all of these risks may adversely affect the Fund’s net asset value per share (“NAV”), trading price, yield, total return and/or ability to meet its investment objectives. For more information about the risks of investing in the Fund, see the section in the Fund’s Prospectus titled “Additional Information About the Fund — Principal Risks of Investing in the Fund.”
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| GraniteShares Autocallable INTC ETF | Underlying Asset Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Underlying Asset Risk. The performance of the Underlying Asset, and consequently the Fund’s performance, is subject to the risks of the semiconductor industry. The risks of investments in the semiconductor industry include: intense competition, both domestically and internationally, including competition from subsidized foreign competitors with lower production costs; wide fluctuations in securities prices due to risks of rapid obsolescence of products; economic performance of the customers of semiconductor companies; their research costs and the risks that their products may not prove commercially successful; capital equipment expenditures that could be substantial and suffer from rapid obsolescence; and thin capitalization and limited product lines, markets, financial resources or personnel. The semiconductor industry may also be affected by risks that affect the broader technology sector, including government regulation; dramatic and often unpredictable changes in growth rates and competition for qualified personnel; heavy dependence on patent and intellectual property rights, the loss or impairment of which may adversely affect profitability; and a small number of companies representing a large portion of the technology sector as a whole. The Fund’s daily returns may be affected by many factors but will depend on the performance and volatility of the Underlying Asset.
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| GraniteShares Autocallable INTC ETF | Derivatives Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Derivatives Risk. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds, interest rates or indexes. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other ordinary investments, including risk related to the market, imperfect correlation with underlying investments, higher price volatility, lack of availability, counterparty risk, liquidity, valuation and legal restrictions. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. The use of derivatives may result in larger losses or smaller gains than directly investing in securities. When the Fund uses derivatives, there may be an imperfect correlation between the value of the Underlying Asset and the derivative, which may prevent the Fund from achieving its investment objectives. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of those amounts initially invested. In addition, the Fund’s investments in derivatives are subject to the following risks:
Options Contracts. The use of options contracts involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which are affected by fiscal and monetary policies and by national and international political, changes in the actual or implied volatility or the reference asset, the time remaining until the expiration of the option contract and economic events. For the Fund, in particular, the value of the options contracts in which it invests is substantially influenced by the value of the Underlying Asset. Selling put options exposes the Fund to the risk of potential loss if the market value of the Underlying Asset falls below the strike price before the option expires. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to such date, the value of an option generally does not increase or decrease at the same rate at the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the underlying instrument, and there may at times not be a liquid secondary market for certain options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. Additionally, the Fund’s practice of “rolling” may cause the Fund to experience losses if the expiring contracts do not generate proceeds enough to cover the costs of entering into new options contracts. Rolling refers to the practice of closing out one options position and opening another with a different expiration date and/or a different strike price. Further, if an option is exercised, the seller (writer) of a put option is obligated to purchase the underlying asset at the strike price, which can result in significant financial and regulatory obligations for the Fund if the market value of the asset has fallen substantially. Furthermore, when the Fund seeks to trade out of puts, especially near expiration, there is an added risk that the Fund may be required to allocate resources unexpectedly to fulfill these obligations. This potential exposure to physical settlement can significantly impact the Fund’s liquidity and market exposure, particularly in volatile market conditions.
Swap Risk: Swaps are subject to tracking risk because they may not be perfect substitutes for the instruments they are intended to hedge or replace. Over the counter swaps are subject to counterparty default. Leverage inherent in derivatives will tend to magnify the Fund’s losses. The swap agreements may reference standardized exchange-traded, FLEX, European Style or American Style put options contracts that are based on the values of the price returns of the Underlying Asset. that generate specific risks.
Counterparty Risk. Counterparty risk is the risk that a counterparty to a financial instrument held by the Fund or by a special purpose or structured vehicle invested in by the Fund may become insolvent or otherwise fail to perform its obligations, and the Fund may obtain no or limited recovery of its investment, and any recovery may be significantly delayed.
Over-the-Counter Market Risk. Securities and options traded in over-the-counter markets may trade less frequently and in limited volumes and thus exhibit more volatility and liquidity risk, and the prices paid by the Fund in over-the-counter transactions may include an undisclosed dealer markup. The Fund is also exposed to default by the over-the-counter option writer who may be unwilling or unable to perform its contractual obligations to the Fund.
In addition, a counterparty (the other party to a transaction or an agreement or the party with whom the Fund executes transactions) to a transaction (including repurchase transaction) with the Fund may be unable or unwilling to make timely principal, interest or settlement payments, or otherwise honor its obligations.
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| GraniteShares Autocallable INTC ETF | Autocallable Structure Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Autocallable Structure Risk. The Fund’s returns are correlated to the performance of a theoretical portfolio of autocallables. Autocallables have specific structural features that may be unfamiliar to many investors:
Contingent Income Risk. Coupon payments from autocallables are not guaranteed and will not be made if the Underlying Asset falls below the Coupon Barrier on observation dates. This means the Fund may generate significantly less income than anticipated during market downturns. The expected absence of future coupon payments over the term of an autocallable could materially affect its value.
Early Redemption Risk. Autocallables may be called before their scheduled maturity if the Underlying Asset reaches or exceeds the Autocallable Barrier on observation dates. This automatic early redemption could force reinvestment of that portion of the portfolio at lower rates if market yields have declined.
Barrier Risk. If the Underlying Asset falls below the Maturity Barrier at the maturity of an autocallable, that portion of the portfolio will be fully exposed to the negative performance of the Underlying Asset from its initial level. For example, if the Underlying Asset has declined 45% at maturity of a particular autocallable, the portfolio allocated to that autocallable would lose 45% of its value. This conditional protection creates a binary outcome that can result in sudden, significant losses if barriers are breached.
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| GraniteShares Autocallable INTC ETF | Calculation Methodology Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Calculation Methodology Risk. Autocallables rely on complex calculation methodologies that may not perform as expected under certain market conditions.
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| GraniteShares Autocallable INTC ETF | Distribution Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective, the Fund seeks to provide current monthly income. There is no assurance that the Fund will make a distribution in any given month. If the Fund makes distributions, the amounts of such distributions will likely vary greatly from one distribution to the next. Additionally, the monthly distributions, if any, may consist of returns of capital, which would decrease the Fund’s NAV and trading price over time. As a result, an investor may suffer significant losses to their investment.
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| GraniteShares Autocallable INTC ETF | NAV Erosion Risk Due to Distributions [Member] | |||||||||||||||||||
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| GraniteShares Autocallable INTC ETF | Option Market Liquidity Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Option Market Liquidity Risk. Liquidity risk exists when particular investments are difficult to purchase or sell. The Fund’s investments in illiquid investments may reduce the returns of the Fund because it may be unable to sell the illiquid investments at an advantageous time or price.
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| GraniteShares Autocallable INTC ETF | Laddered Portfolio Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Laddered Portfolio Risk. A laddered portfolio strategy may not perform as expected if market conditions remain unfavorable over an extended period, multiple autocallable instruments may experience losses simultaneously and/or the reallocation across autocallable instruments may result in suboptimal entry points during rapidly changing markets. A portfolio of autocallables providing exposure to the same Underlying Asset may not be homogeneously affected by a change in that Underlying Asset price as the impact of such change may depend on the tenor of each autocallable. Depending on market conditions, requests to create and/or redeem shares in the Fund may result in the average tenor of the portfolio of autocallables held by the Fund to deviate from the average tenor the Fund intends to achieve.
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| GraniteShares Autocallable INTC ETF | Concentration Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Concentration Risk. To the extent that the Underlying Asset concentrates its investments in a particular industry, the Fund will be subject to the risks associated with that industry.
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| GraniteShares Autocallable INTC ETF | ETF Risks [Member] | |||||||||||||||||||
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| Risk [Text Block] | ETF Risks.
Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that are authorized to purchase and redeem Shares directly from the Fund (known as “Authorized Participants” or “APs”). There are a limited number of financial institutions that post collateral for certain trades on an agency basis (i.e. on behalf of other market participants). In such circumstances, the Fund’s market price may be significantly different than its underlying net asset value. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services; or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
Cash Redemption Risk. The Fund currently expects to effect a significant portion of its creations and redemptions for cash, rather than in-kind securities. Paying redemption proceeds in cash rather than through in-kind delivery of portfolio securities may require the Fund to dispose of or sell portfolio securities or other assets at an inopportune time to obtain the cash needed to meet redemption orders. This may cause the Fund to sell a security and recognize a capital gain or loss that might not have been incurred if it had made a redemption in-kind. As a result, the Fund may pay out higher or lower annual capital gains distributions than ETFs that redeem in-kind. The use of cash creations and redemptions may also cause the Fund’s Shares to trade in the market at greater bid-ask spreads or greater premiums or discounts to the Fund’s NAV. Furthermore, the Fund may not be able to execute cash transactions for creation and redemption purposes at the same price used to determine the Fund’s NAV. To the extent that the maximum additional charge for creation or redemption transactions is insufficient to cover the execution shortfall, the Fund’s performance could be negatively impacted.
Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid-ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.
Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant.
Trading. Although Shares are listed on a national securities exchange, such as The Nasdaq Stock Market, LLC (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that an active trading market for the Shares will develop or be maintained or that the Shares will trade with any volume, or at all, on any stock exchange. This risk may be greater for the Fund as it seeks to have exposure to a single underlying stock as opposed to a more diverse portfolio like a traditional pooled investment. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares. Shares trade on the Exchange at a market price that may be below, at or above the Fund’s NAV. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged. In the event of an unscheduled market close for options contracts that reference a single stock, such as the Underlying Asset’s securities being halted or a market wide closure, settlement prices will be determined by the procedures of the listing exchange of the options contracts. As a result, the Fund could be adversely affected and be unable to implement its investment strategies in the event of an unscheduled closing.
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| GraniteShares Autocallable INTC ETF | High Portfolio Turnover Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | High Portfolio Turnover Risk. The Fund may actively and frequently trade all or a significant portion of the Fund’s holdings. A high portfolio turnover rate increases transaction costs, which may increase the Fund’s expenses. Frequent trading may also cause adverse tax consequences for investors in the Fund due to an increase in short-term capital gains.
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| GraniteShares Autocallable INTC ETF | Inflation Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the present value of the Fund’s assets and distributions, if any, may decline.
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| GraniteShares Autocallable INTC ETF | Liquidity Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Liquidity Risk. Some securities held by the Fund, including options contracts, may be difficult to sell or be illiquid, particularly during times of market turmoil. This risk is greater for the Fund as it will hold options contracts on a single security, and not a broader range of options contracts. Markets for securities or financial instruments could be disrupted by a number of events, including, but not limited to, an economic crisis, natural disasters, epidemics/pandemics, new legislation or regulatory changes inside or outside the United States. Illiquid securities may be difficult to value, especially in changing or volatile markets. If the Fund is forced to sell an illiquid security at an unfavorable time or price, the Fund may be adversely impacted. Certain market conditions or restrictions, such as market rules related to short sales, may prevent the Fund from limiting losses, realizing gains or achieving a high correlation with the Underlying Asset. There is no assurance that a security that is deemed liquid when purchased will continue to be liquid. Market illiquidity may cause losses for the Fund.
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| GraniteShares Autocallable INTC ETF | Management Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Management Risk. The Fund is subject to management risk because it is an actively managed portfolio. In managing the Fund’s investment portfolio, the portfolio managers will apply investment techniques and risk analyses that may not produce the desired result. There can be no guarantee that the Fund will meet its investment objective.
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| GraniteShares Autocallable INTC ETF | Money Market Instrument Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Repurchase agreements are contracts in which a seller of securities agrees to buy the securities back at a specified time and price. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments, including money market funds, may lose money through fees or other means.
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| GraniteShares Autocallable INTC ETF | New Fund Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | New Fund Risk. The Fund is a recently organized management investment company with no operating history. As a result, prospective investors do not have a track record or history on which to base their investment decisions.
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| GraniteShares Autocallable INTC ETF | Non-Diversification Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Non-Diversification Risk. Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer or a smaller number of issuers than if it was a diversified fund. As a result, a decline in the value of an investment in a single issuer or a smaller number of issuers could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio.
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| GraniteShares Autocallable INTC ETF | Operational Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Operational Risk. The Fund is subject to risks arising from various operational factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund relies on third-parties for a range of services, including custody. Any delay or failure relating to engaging or maintaining such service providers may affect the Fund’s ability to meet its investment objective. Although the Fund and the Adviser seek to reduce these operational risks through controls and procedures, there is no way to completely protect against such risks.
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| GraniteShares Autocallable INTC ETF | Recent Market Events Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Recent Market Events Risk. U.S. and international markets have experienced significant periods of volatility in recent years due to a number of economic, political and global macro factors, including uncertainty regarding interest rates and inflation, rising government debt in the U.S. and elsewhere, political events, changes in trade policy and armed conflict. Public health emergencies, such as the COVID-19 pandemic, have in the past caused, and may in the future cause, disruptions to business operations and supply chains, reduced consumer demand and significant market volatility. Armed conflict, including the conflict between Russia and Ukraine and conflicts in the Middle East, has caused, and could continue to cause, loss of life and severe adverse effects on regional and global economies and on the markets for certain securities and commodities. The U.S., the European Union and other countries have imposed, and may impose additional, sanctions and other restrictive measures on certain countries, individuals and companies, which could adversely affect the issuers, markets and economies concerned. In addition, the U.S. has imposed, and may continue to impose, tariffs and other trade barriers, and other countries have imposed or may impose retaliatory measures. Trade disputes between the U.S. and other countries could result in additional tariffs, trade barriers and/or investment restrictions. These and other events could adversely affect the Fund’s performance, and their duration and full effects cannot be predicted.
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| GraniteShares Autocallable INTC ETF | Single Issuer Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Single Issuer Risk. Issuer-specific attributes may cause an investment in the Fund to be more volatile than a traditional pooled investment vehicle which diversifies risk or the market generally. The value of the Fund, which focuses on an individual security (the Underlying Asset), may be more volatile than a traditional pooled investment or the market as a whole and may perform differently from the value of a traditional pooled investment or the market as a whole.
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| GraniteShares Autocallable INTC ETF | Tax Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Tax Risk. The Fund intends to elect and to qualify each year to be treated as a RIC under Subchapter M of the Code. As a RIC, the Fund will not be subject to U.S. federal income tax on the portion of its net investment income and net capital gain that it distributes to Shareholders, provided that it satisfies certain requirements of the Code. If the Fund does not qualify as a RIC for any taxable year and certain relief provisions are not available, the Fund’s taxable income will be subject to tax at the Fund level and to a further tax at the shareholder level when such income is distributed. To comply with the asset diversification test applicable to a RIC, the Fund will attempt to ensure that the value of the derivatives it holds never exceed 25% of the total value of Fund assets at the close of any quarter. If the Fund’s investments in the derivatives were to exceed 25% of the Fund’s total assets at the end of a tax quarter, the Fund, generally, has a grace period to cure such lack of compliance. If the Fund fails to timely cure, it may no longer be eligible to be treated as a RIC. In addition, distributions received by the Fund from the Underlying Asset may generate “bad income” that could prevent the Fund from meeting the “Income Requirement” of Subchapter M of the Code, which may cause the Fund to fail to qualify as a RIC. The Fund intends to treat any income it may derive from the options and swap contracts as “qualifying income” under the provisions of the Code applicable to RICs. If the income is not qualifying income the Fund may lose its status as a RIC. The Fund will, for each year, distribute substantially all of its net investment income and net capital gains.
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| GraniteShares Autocallable INTC ETF | Investing In U.S. Equities Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Investing in U.S. Equities Risk. Investing in U.S. issuers subjects the Fund to legal, regulatory, political, currency, security, and economic risks that are specific to the U.S. Certain changes in the U.S., such as a weakening of the U.S. economy or a decline in its financial markets, may have an adverse effect on U.S. issuers.
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| GraniteShares Autocallable INTC ETF | Affiliated Etfs Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Affiliated ETFs Risk. The Fund may invest in equity securities of other ETFs for which the Adviser serves as investment adviser. It is possible that a conflict of interest may arise. Additionally, to the extent the Fund invests in the securities of another affiliated ETF, the Fund will be subject to the investment risks of the ETF. Shareholders of the Fund are subject to duplicative expenses to the extent of the Fund’s investment in any affiliated ETF. Finally, the shares of the ETFs in which the Fund may invest will be listed on a national securities exchange and the Fund will purchase or sell these shares on the secondary market at its current market price, which may be more or less than its net asset value per share.
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| GraniteShares Autocallable INTC ETF | Box Spread E T F Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Box Spread ETF Risk. The Fund may invest in LBOX, an affiliated ETF advised by GraniteShares Advisors LLC, the Fund’s investment adviser, that employs a market-neutral box spread strategy to generate short-term, fixed-income-like returns. Box spread positions involve simultaneous long and short synthetic options positions on the same reference asset and are structured to capture an implied financing rate. While box spreads are designed to be market-neutral and to generate a return approximating prevailing short-term interest rates, they are subject to execution risk, counterparty risk with respect to the options positions, and the risk that the implied financing rate embedded in the box spread diverges from prevailing market rates in periods of market stress. The Fund’s investments in LBOX are made pursuant to Section 12(d)(1)(G) of the 1940 Act, which imposes no percentage-of-assets limits on the Fund’s investment in an exchange-traded fund. Accordingly, the Fund could, at any time, hold a material allocation in LBOX. The Fund’s adviser faces a conflict of interest in allocating Fund assets to an affiliated fund such as LBOX; see “Affiliated ETFs Risk.”
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| GraniteShares Autocallable INTC ETF | U.S. Government And U.S. Agency Obligations Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | U.S. Government and U.S. Agency Obligations Risk. The Fund may invest in securities issued by the U.S. government or its agencies or instrumentalities. U.S. Government obligations include securities issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, such as the U.S. Treasury. Payment of principal and interest on U.S. Government obligations may be backed by the full faith and credit of the United States or may be backed solely by the issuing or guaranteeing agency or instrumentality itself. In the latter case, the investor must look principally to the agency or instrumentality issuing or guaranteeing the obligation for ultimate repayment, which agency or instrumentality may be privately owned. There can be no assurance that the U.S. Government would provide financial support to its agencies or instrumentalities (including government-sponsored enterprises) where it is not obligated to do so.
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| GraniteShares Autocallable INTC ETF | Fixed Income Securities Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Fixed Income Securities Risk. The market value of Fixed Income Securities will change in response to interest rate changes and other factors, such as changes in the effective maturities and credit ratings of fixed income investments. During periods of falling interest rates, the values of outstanding Fixed Income Securities and related financial instruments generally rise. Conversely, during periods of rising interest rates, the values of such securities and related financial instruments generally decline. Fixed Income Securities are also subject to credit risk.
Investments in Fixed Income Securities may also involve the following risks, depending on the instrument involved:
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| GraniteShares Autocallable IONQ ETF | |||||||||||||||||||
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| Risk [Text Block] | PRINCIPAL RISKS OF INVESTING IN THE FUND
The principal risks of investing in the Fund are summarized below. As with any investment, there is a risk that you could lose all or a portion of your investment in the Fund. Each risk summarized below is considered a “principal risk” of investing in the Fund, regardless of the order in which it appears. Some or all of these risks may adversely affect the Fund’s net asset value per share (“NAV”), trading price, yield, total return and/or ability to meet its investment objectives. For more information about the risks of investing in the Fund, see the section in the Fund’s Prospectus titled “Additional Information About the Fund — Principal Risks of Investing in the Fund.”
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| GraniteShares Autocallable IONQ ETF | Underlying Asset Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Underlying Asset Risk. The performance of the Underlying Asset, and consequently the Fund’s performance, is subject to the risks of the electronic data processing industry. Any data breaches, unauthorized access, data loss due to system malfunctions, cyberattacks, privacy violations, data integrity issues, system outages, hardware failures, software vulnerabilities, human error, and power disruptions; essentially, any threat that could compromise the confidentiality, integrity, or availability of stored or processed data could have a material adverse effect on our company, its prospects and financial performance. Worldwide economic conditions could have an effect on the demand for our company’s services and products and could result in declining revenue and earnings. General economic declines or a softening of the economy make it more likely that our company may experience difficulties collecting accounts receivable, sales and demand for our company’s products may decrease, and our company’s operating results may be adversely affected. The Fund’s daily returns may be affected by many factors but will depend on the performance and volatility of the Underlying Asset.
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| GraniteShares Autocallable IONQ ETF | Derivatives Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Derivatives Risk. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds, interest rates or indexes. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other ordinary investments, including risk related to the market, imperfect correlation with underlying investments, higher price volatility, lack of availability, counterparty risk, liquidity, valuation and legal restrictions. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. The use of derivatives may result in larger losses or smaller gains than directly investing in securities. When the Fund uses derivatives, there may be an imperfect correlation between the value of the Underlying Asset and the derivative, which may prevent the Fund from achieving its investment objectives. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of those amounts initially invested. In addition, the Fund’s investments in derivatives are subject to the following risks:
Options Contracts. The use of options contracts involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which are affected by fiscal and monetary policies and by national and international political, changes in the actual or implied volatility or the reference asset, the time remaining until the expiration of the option contract and economic events. For the Fund, in particular, the value of the options contracts in which it invests is substantially influenced by the value of the Underlying Asset. Selling put options exposes the Fund to the risk of potential loss if the market value of the Underlying Asset falls below the strike price before the option expires. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to such date, the value of an option generally does not increase or decrease at the same rate at the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the underlying instrument, and there may at times not be a liquid secondary market for certain options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. Additionally, the Fund’s practice of “rolling” may cause the Fund to experience losses if the expiring contracts do not generate proceeds enough to cover the costs of entering into new options contracts. Rolling refers to the practice of closing out one options position and opening another with a different expiration date and/or a different strike price. Further, if an option is exercised, the seller (writer) of a put option is obligated to purchase the underlying asset at the strike price, which can result in significant financial and regulatory obligations for the Fund if the market value of the asset has fallen substantially. Furthermore, when the Fund seeks to trade out of puts, especially near expiration, there is an added risk that the Fund may be required to allocate resources unexpectedly to fulfill these obligations. This potential exposure to physical settlement can significantly impact the Fund’s liquidity and market exposure, particularly in volatile market conditions.
Swap Risk: Swaps are subject to tracking risk because they may not be perfect substitutes for the instruments they are intended to hedge or replace. Over the counter swaps are subject to counterparty default. Leverage inherent in derivatives will tend to magnify the Fund’s losses. The swap agreements may reference standardized exchange-traded, FLEX, European Style or American Style put options contracts that are based on the values of the price returns of the Underlying Asset. that generate specific risks.
Counterparty Risk. Counterparty risk is the risk that a counterparty to a financial instrument held by the Fund or by a special purpose or structured vehicle invested in by the Fund may become insolvent or otherwise fail to perform its obligations, and the Fund may obtain no or limited recovery of its investment, and any recovery may be significantly delayed.
Over-the-Counter Market Risk. Securities and options traded in over-the-counter markets may trade less frequently and in limited volumes and thus exhibit more volatility and liquidity risk, and the prices paid by the Fund in over-the-counter transactions may include an undisclosed dealer markup. The Fund is also exposed to default by the over-the-counter option writer who may be unwilling or unable to perform its contractual obligations to the Fund.
In addition, a counterparty (the other party to a transaction or an agreement or the party with whom the Fund executes transactions) to a transaction (including repurchase transaction) with the Fund may be unable or unwilling to make timely principal, interest or settlement payments, or otherwise honor its obligations.
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| GraniteShares Autocallable IONQ ETF | Autocallable Structure Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Autocallable Structure Risk. The Fund’s returns are correlated to the performance of a theoretical portfolio of autocallables. Autocallables have specific structural features that may be unfamiliar to many investors:
Contingent Income Risk. Coupon payments from autocallables are not guaranteed and will not be made if the Underlying Asset falls below the Coupon Barrier on observation dates. This means the Fund may generate significantly less income than anticipated during market downturns. The expected absence of future coupon payments over the term of an autocallable could materially affect its value.
Early Redemption Risk. Autocallables may be called before their scheduled maturity if the Underlying Asset reaches or exceeds the Autocallable Barrier on observation dates. This automatic early redemption could force reinvestment of that portion of the portfolio at lower rates if market yields have declined.
Barrier Risk. If the Underlying Asset falls below the Maturity Barrier at the maturity of an autocallable, that portion of the portfolio will be fully exposed to the negative performance of the Underlying Asset from its initial level. For example, if the Underlying Asset has declined 45% at maturity of a particular autocallable, the portfolio allocated to that autocallable would lose 45% of its value. This conditional protection creates a binary outcome that can result in sudden, significant losses if barriers are breached.
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| GraniteShares Autocallable IONQ ETF | Calculation Methodology Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Calculation Methodology Risk. Autocallables rely on complex calculation methodologies that may not perform as expected under certain market conditions.
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| GraniteShares Autocallable IONQ ETF | Distribution Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective, the Fund seeks to provide current monthly income. There is no assurance that the Fund will make a distribution in any given month. If the Fund makes distributions, the amounts of such distributions will likely vary greatly from one distribution to the next. Additionally, the monthly distributions, if any, may consist of returns of capital, which would decrease the Fund’s NAV and trading price over time. As a result, an investor may suffer significant losses to their investment.
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| GraniteShares Autocallable IONQ ETF | NAV Erosion Risk Due to Distributions [Member] | |||||||||||||||||||
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| GraniteShares Autocallable IONQ ETF | Option Market Liquidity Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Option Market Liquidity Risk. Liquidity risk exists when particular investments are difficult to purchase or sell. The Fund’s investments in illiquid investments may reduce the returns of the Fund because it may be unable to sell the illiquid investments at an advantageous time or price.
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| GraniteShares Autocallable IONQ ETF | Laddered Portfolio Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Laddered Portfolio Risk. A laddered portfolio strategy may not perform as expected if market conditions remain unfavorable over an extended period, multiple autocallable instruments may experience losses simultaneously and/or the reallocation across autocallable instruments may result in suboptimal entry points during rapidly changing markets. A portfolio of autocallables providing exposure to the same Underlying Asset may not be homogeneously affected by a change in that Underlying Asset price as the impact of such change may depend on the tenor of each autocallable. Depending on market conditions, requests to create and/or redeem shares in the Fund may result in the average tenor of the portfolio of autocallables held by the Fund to deviate from the average tenor the Fund intends to achieve.
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| GraniteShares Autocallable IONQ ETF | Concentration Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Concentration Risk. To the extent that the Underlying Asset concentrates its investments in a particular industry, the Fund will be subject to the risks associated with that industry.
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| GraniteShares Autocallable IONQ ETF | ETF Risks [Member] | |||||||||||||||||||
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| Risk [Text Block] | ETF Risks.
Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that are authorized to purchase and redeem Shares directly from the Fund (known as “Authorized Participants” or “APs”). There are a limited number of financial institutions that post collateral for certain trades on an agency basis (i.e. on behalf of other market participants). In such circumstances, the Fund’s market price may be significantly different than its underlying net asset value. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services; or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
Cash Redemption Risk. The Fund currently expects to effect a significant portion of its creations and redemptions for cash, rather than in-kind securities. Paying redemption proceeds in cash rather than through in-kind delivery of portfolio securities may require the Fund to dispose of or sell portfolio securities or other assets at an inopportune time to obtain the cash needed to meet redemption orders. This may cause the Fund to sell a security and recognize a capital gain or loss that might not have been incurred if it had made a redemption in-kind. As a result, the Fund may pay out higher or lower annual capital gains distributions than ETFs that redeem in-kind. The use of cash creations and redemptions may also cause the Fund’s Shares to trade in the market at greater bid-ask spreads or greater premiums or discounts to the Fund’s NAV. Furthermore, the Fund may not be able to execute cash transactions for creation and redemption purposes at the same price used to determine the Fund’s NAV. To the extent that the maximum additional charge for creation or redemption transactions is insufficient to cover the execution shortfall, the Fund’s performance could be negatively impacted.
Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid-ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.
Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant.
Trading. Although Shares are listed on a national securities exchange, such as The Nasdaq Stock Market, LLC (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that an active trading market for the Shares will develop or be maintained or that the Shares will trade with any volume, or at all, on any stock exchange. This risk may be greater for the Fund as it seeks to have exposure to a single underlying stock as opposed to a more diverse portfolio like a traditional pooled investment. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares. Shares trade on the Exchange at a market price that may be below, at or above the Fund’s NAV. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged. In the event of an unscheduled market close for options contracts that reference a single stock, such as the Underlying Asset’s securities being halted or a market wide closure, settlement prices will be determined by the procedures of the listing exchange of the options contracts. As a result, the Fund could be adversely affected and be unable to implement its investment strategies in the event of an unscheduled closing.
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| GraniteShares Autocallable IONQ ETF | High Portfolio Turnover Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | High Portfolio Turnover Risk. The Fund may actively and frequently trade all or a significant portion of the Fund’s holdings. A high portfolio turnover rate increases transaction costs, which may increase the Fund’s expenses. Frequent trading may also cause adverse tax consequences for investors in the Fund due to an increase in short-term capital gains.
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| GraniteShares Autocallable IONQ ETF | Inflation Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the present value of the Fund’s assets and distributions, if any, may decline.
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| GraniteShares Autocallable IONQ ETF | Liquidity Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Liquidity Risk. Some securities held by the Fund, including options contracts, may be difficult to sell or be illiquid, particularly during times of market turmoil. This risk is greater for the Fund as it will hold options contracts on a single security, and not a broader range of options contracts. Markets for securities or financial instruments could be disrupted by a number of events, including, but not limited to, an economic crisis, natural disasters, epidemics/pandemics, new legislation or regulatory changes inside or outside the United States. Illiquid securities may be difficult to value, especially in changing or volatile markets. If the Fund is forced to sell an illiquid security at an unfavorable time or price, the Fund may be adversely impacted. Certain market conditions or restrictions, such as market rules related to short sales, may prevent the Fund from limiting losses, realizing gains or achieving a high correlation with the Underlying Asset. There is no assurance that a security that is deemed liquid when purchased will continue to be liquid. Market illiquidity may cause losses for the Fund.
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| GraniteShares Autocallable IONQ ETF | Management Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Management Risk. The Fund is subject to management risk because it is an actively managed portfolio. In managing the Fund’s investment portfolio, the portfolio managers will apply investment techniques and risk analyses that may not produce the desired result. There can be no guarantee that the Fund will meet its investment objective.
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| GraniteShares Autocallable IONQ ETF | Money Market Instrument Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Repurchase agreements are contracts in which a seller of securities agrees to buy the securities back at a specified time and price. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments, including money market funds, may lose money through fees or other means.
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| GraniteShares Autocallable IONQ ETF | New Fund Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | New Fund Risk. The Fund is a recently organized management investment company with no operating history. As a result, prospective investors do not have a track record or history on which to base their investment decisions.
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| GraniteShares Autocallable IONQ ETF | Non-Diversification Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Non-Diversification Risk. Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer or a smaller number of issuers than if it was a diversified fund. As a result, a decline in the value of an investment in a single issuer or a smaller number of issuers could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio.
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| GraniteShares Autocallable IONQ ETF | Operational Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Operational Risk. The Fund is subject to risks arising from various operational factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund relies on third-parties for a range of services, including custody. Any delay or failure relating to engaging or maintaining such service providers may affect the Fund’s ability to meet its investment objective. Although the Fund and the Adviser seek to reduce these operational risks through controls and procedures, there is no way to completely protect against such risks.
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| GraniteShares Autocallable IONQ ETF | Recent Market Events Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Recent Market Events Risk. U.S. and international markets have experienced significant periods of volatility in recent years due to a number of economic, political and global macro factors, including uncertainty regarding interest rates and inflation, rising government debt in the U.S. and elsewhere, political events, changes in trade policy and armed conflict. Public health emergencies, such as the COVID-19 pandemic, have in the past caused, and may in the future cause, disruptions to business operations and supply chains, reduced consumer demand and significant market volatility. Armed conflict, including the conflict between Russia and Ukraine and conflicts in the Middle East, has caused, and could continue to cause, loss of life and severe adverse effects on regional and global economies and on the markets for certain securities and commodities. The U.S., the European Union and other countries have imposed, and may impose additional, sanctions and other restrictive measures on certain countries, individuals and companies, which could adversely affect the issuers, markets and economies concerned. In addition, the U.S. has imposed, and may continue to impose, tariffs and other trade barriers, and other countries have imposed or may impose retaliatory measures. Trade disputes between the U.S. and other countries could result in additional tariffs, trade barriers and/or investment restrictions. These and other events could adversely affect the Fund’s performance, and their duration and full effects cannot be predicted.
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| GraniteShares Autocallable IONQ ETF | Single Issuer Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Single Issuer Risk. Issuer-specific attributes may cause an investment in the Fund to be more volatile than a traditional pooled investment vehicle which diversifies risk or the market generally. The value of the Fund, which focuses on an individual security (the Underlying Asset), may be more volatile than a traditional pooled investment or the market as a whole and may perform differently from the value of a traditional pooled investment or the market as a whole.
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| GraniteShares Autocallable IONQ ETF | Tax Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Tax Risk. The Fund intends to elect and to qualify each year to be treated as a RIC under Subchapter M of the Code. As a RIC, the Fund will not be subject to U.S. federal income tax on the portion of its net investment income and net capital gain that it distributes to Shareholders, provided that it satisfies certain requirements of the Code. If the Fund does not qualify as a RIC for any taxable year and certain relief provisions are not available, the Fund’s taxable income will be subject to tax at the Fund level and to a further tax at the shareholder level when such income is distributed. To comply with the asset diversification test applicable to a RIC, the Fund will attempt to ensure that the value of the derivatives it holds never exceed 25% of the total value of Fund assets at the close of any quarter. If the Fund’s investments in the derivatives were to exceed 25% of the Fund’s total assets at the end of a tax quarter, the Fund, generally, has a grace period to cure such lack of compliance. If the Fund fails to timely cure, it may no longer be eligible to be treated as a RIC. In addition, distributions received by the Fund from the Underlying Asset may generate “bad income” that could prevent the Fund from meeting the “Income Requirement” of Subchapter M of the Code, which may cause the Fund to fail to qualify as a RIC. The Fund intends to treat any income it may derive from the options and swap contracts as “qualifying income” under the provisions of the Code applicable to RICs. If the income is not qualifying income the Fund may lose its status as a RIC. The Fund will, for each year, distribute substantially all of its net investment income and net capital gains.
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| GraniteShares Autocallable IONQ ETF | Investing In U.S. Equities Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Investing in U.S. Equities Risk. Investing in U.S. issuers subjects the Fund to legal, regulatory, political, currency, security, and economic risks that are specific to the U.S. Certain changes in the U.S., such as a weakening of the U.S. economy or a decline in its financial markets, may have an adverse effect on U.S. issuers.
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| GraniteShares Autocallable IONQ ETF | Affiliated Etfs Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Affiliated ETFs Risk. The Fund may invest in equity securities of other ETFs for which the Adviser serves as investment adviser. It is possible that a conflict of interest may arise. Additionally, to the extent the Fund invests in the securities of another affiliated ETF, the Fund will be subject to the investment risks of the ETF. Shareholders of the Fund are subject to duplicative expenses to the extent of the Fund’s investment in any affiliated ETF. Finally, the shares of the ETFs in which the Fund may invest will be listed on a national securities exchange and the Fund will purchase or sell these shares on the secondary market at its current market price, which may be more or less than its net asset value per share.
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| GraniteShares Autocallable IONQ ETF | Box Spread E T F Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Box Spread ETF Risk. The Fund may invest in LBOX, an affiliated ETF advised by GraniteShares Advisors LLC, the Fund’s investment adviser, that employs a market-neutral box spread strategy to generate short-term, fixed-income-like returns. Box spread positions involve simultaneous long and short synthetic options positions on the same reference asset and are structured to capture an implied financing rate. While box spreads are designed to be market-neutral and to generate a return approximating prevailing short-term interest rates, they are subject to execution risk, counterparty risk with respect to the options positions, and the risk that the implied financing rate embedded in the box spread diverges from prevailing market rates in periods of market stress. The Fund’s investments in LBOX are made pursuant to Section 12(d)(1)(G) of the 1940 Act, which imposes no percentage-of-assets limits on the Fund’s investment in an exchange-traded fund. Accordingly, the Fund could, at any time, hold a material allocation in LBOX. The Fund’s adviser faces a conflict of interest in allocating Fund assets to an affiliated fund such as LBOX; see “Affiliated ETFs Risk.”
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| GraniteShares Autocallable IONQ ETF | U.S. Government And U.S. Agency Obligations Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | U.S. Government and U.S. Agency Obligations Risk. The Fund may invest in securities issued by the U.S. government or its agencies or instrumentalities. U.S. Government obligations include securities issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, such as the U.S. Treasury. Payment of principal and interest on U.S. Government obligations may be backed by the full faith and credit of the United States or may be backed solely by the issuing or guaranteeing agency or instrumentality itself. In the latter case, the investor must look principally to the agency or instrumentality issuing or guaranteeing the obligation for ultimate repayment, which agency or instrumentality may be privately owned. There can be no assurance that the U.S. Government would provide financial support to its agencies or instrumentalities (including government-sponsored enterprises) where it is not obligated to do so.
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| GraniteShares Autocallable IONQ ETF | Fixed Income Securities Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Fixed Income Securities Risk. The market value of Fixed Income Securities will change in response to interest rate changes and other factors, such as changes in the effective maturities and credit ratings of fixed income investments. During periods of falling interest rates, the values of outstanding Fixed Income Securities and related financial instruments generally rise. Conversely, during periods of rising interest rates, the values of such securities and related financial instruments generally decline. Fixed Income Securities are also subject to credit risk.
Investments in Fixed Income Securities may also involve the following risks, depending on the instrument involved:
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| GraniteShares Autocallable MARA ETF | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | PRINCIPAL RISKS OF INVESTING IN THE FUND
The principal risks of investing in the Fund are summarized below. As with any investment, there is a risk that you could lose all or a portion of your investment in the Fund. Each risk summarized below is considered a “principal risk” of investing in the Fund, regardless of the order in which it appears. Some or all of these risks may adversely affect the Fund’s net asset value per share (“NAV”), trading price, yield, total return and/or ability to meet its investment objectives. For more information about the risks of investing in the Fund, see the section in the Fund’s Prospectus titled “Additional Information About the Fund — Principal Risks of Investing in the Fund.”
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| GraniteShares Autocallable MARA ETF | Underlying Asset Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Underlying Asset Risk. The performance of the Underlying Asset, and consequently the Fund’s performance, is subject to the risks of the electronic data processing industry. Any data breaches, unauthorized access, data loss due to system malfunctions, cyberattacks, privacy violations, data integrity issues, system outages, hardware failures, software vulnerabilities, human error, and power disruptions; essentially, any threat that could compromise the confidentiality, integrity, or availability of stored or processed data could have a material adverse effect on our company, its prospects and financial performance. Worldwide economic conditions could have an effect on the demand for our company’s services and products and could result in declining revenue and earnings. General economic declines or a softening of the economy make it more likely that our company may experience difficulties collecting accounts receivable, sales and demand for our company’s products may decrease, and our company’s operating results may be adversely affected. The Fund’s daily returns may be affected by many factors but will depend on the performance and volatility of the Underlying Asset.
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| GraniteShares Autocallable MARA ETF | Derivatives Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Derivatives Risk. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds, interest rates or indexes. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other ordinary investments, including risk related to the market, imperfect correlation with underlying investments, higher price volatility, lack of availability, counterparty risk, liquidity, valuation and legal restrictions. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. The use of derivatives may result in larger losses or smaller gains than directly investing in securities. When the Fund uses derivatives, there may be an imperfect correlation between the value of the Underlying Asset and the derivative, which may prevent the Fund from achieving its investment objectives. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of those amounts initially invested. In addition, the Fund’s investments in derivatives are subject to the following risks:
Options Contracts. The use of options contracts involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which are affected by fiscal and monetary policies and by national and international political, changes in the actual or implied volatility or the reference asset, the time remaining until the expiration of the option contract and economic events. For the Fund, in particular, the value of the options contracts in which it invests is substantially influenced by the value of the Underlying Asset. Selling put options exposes the Fund to the risk of potential loss if the market value of the Underlying Asset falls below the strike price before the option expires. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to such date, the value of an option generally does not increase or decrease at the same rate at the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the underlying instrument, and there may at times not be a liquid secondary market for certain options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. Additionally, the Fund’s practice of “rolling” may cause the Fund to experience losses if the expiring contracts do not generate proceeds enough to cover the costs of entering into new options contracts. Rolling refers to the practice of closing out one options position and opening another with a different expiration date and/or a different strike price. Further, if an option is exercised, the seller (writer) of a put option is obligated to purchase the underlying asset at the strike price, which can result in significant financial and regulatory obligations for the Fund if the market value of the asset has fallen substantially. Furthermore, when the Fund seeks to trade out of puts, especially near expiration, there is an added risk that the Fund may be required to allocate resources unexpectedly to fulfill these obligations. This potential exposure to physical settlement can significantly impact the Fund’s liquidity and market exposure, particularly in volatile market conditions.
Swap Risk: Swaps are subject to tracking risk because they may not be perfect substitutes for the instruments they are intended to hedge or replace. Over the counter swaps are subject to counterparty default. Leverage inherent in derivatives will tend to magnify the Fund’s losses. The swap agreements may reference standardized exchange-traded, FLEX, European Style or American Style put options contracts that are based on the values of the price returns of the Underlying Asset. that generate specific risks.
Counterparty Risk. Counterparty risk is the risk that a counterparty to a financial instrument held by the Fund or by a special purpose or structured vehicle invested in by the Fund may become insolvent or otherwise fail to perform its obligations, and the Fund may obtain no or limited recovery of its investment, and any recovery may be significantly delayed.
Over-the-Counter Market Risk. Securities and options traded in over-the-counter markets may trade less frequently and in limited volumes and thus exhibit more volatility and liquidity risk, and the prices paid by the Fund in over-the-counter transactions may include an undisclosed dealer markup. The Fund is also exposed to default by the over-the-counter option writer who may be unwilling or unable to perform its contractual obligations to the Fund.
In addition, a counterparty (the other party to a transaction or an agreement or the party with whom the Fund executes transactions) to a transaction (including repurchase transaction) with the Fund may be unable or unwilling to make timely principal, interest or settlement payments, or otherwise honor its obligations.
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| GraniteShares Autocallable MARA ETF | Autocallable Structure Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Autocallable Structure Risk. The Fund’s returns are correlated to the performance of a theoretical portfolio of autocallables. Autocallables have specific structural features that may be unfamiliar to many investors:
Contingent Income Risk. Coupon payments from autocallables are not guaranteed and will not be made if the Underlying Asset falls below the Coupon Barrier on observation dates. This means the Fund may generate significantly less income than anticipated during market downturns. The expected absence of future coupon payments over the term of an autocallable could materially affect its value.
Early Redemption Risk. Autocallables may be called before their scheduled maturity if the Underlying Asset reaches or exceeds the Autocallable Barrier on observation dates. This automatic early redemption could force reinvestment of that portion of the portfolio at lower rates if market yields have declined.
Barrier Risk. If the Underlying Asset falls below the Maturity Barrier at the maturity of an autocallable, that portion of the portfolio will be fully exposed to the negative performance of the Underlying Asset from its initial level. For example, if the Underlying Asset has declined 45% at maturity of a particular autocallable, the portfolio allocated to that autocallable would lose 45% of its value. This conditional protection creates a binary outcome that can result in sudden, significant losses if barriers are breached.
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| GraniteShares Autocallable MARA ETF | Calculation Methodology Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Calculation Methodology Risk. Autocallables rely on complex calculation methodologies that may not perform as expected under certain market conditions.
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| GraniteShares Autocallable MARA ETF | Distribution Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective, the Fund seeks to provide current monthly income. There is no assurance that the Fund will make a distribution in any given month. If the Fund makes distributions, the amounts of such distributions will likely vary greatly from one distribution to the next. Additionally, the monthly distributions, if any, may consist of returns of capital, which would decrease the Fund’s NAV and trading price over time. As a result, an investor may suffer significant losses to their investment.
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| GraniteShares Autocallable MARA ETF | NAV Erosion Risk Due to Distributions [Member] | |||||||||||||||||||
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| Risk [Text Block] |
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| GraniteShares Autocallable MARA ETF | Option Market Liquidity Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Option Market Liquidity Risk. Liquidity risk exists when particular investments are difficult to purchase or sell. The Fund’s investments in illiquid investments may reduce the returns of the Fund because it may be unable to sell the illiquid investments at an advantageous time or price.
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| GraniteShares Autocallable MARA ETF | Laddered Portfolio Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Laddered Portfolio Risk. A laddered portfolio strategy may not perform as expected if market conditions remain unfavorable over an extended period, multiple autocallable instruments may experience losses simultaneously and/or the reallocation across autocallable instruments may result in suboptimal entry points during rapidly changing markets. A portfolio of autocallables providing exposure to the same Underlying Asset may not be homogeneously affected by a change in that Underlying Asset price as the impact of such change may depend on the tenor of each autocallable. Depending on market conditions, requests to create and/or redeem shares in the Fund may result in the average tenor of the portfolio of autocallables held by the Fund to deviate from the average tenor the Fund intends to achieve.
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| GraniteShares Autocallable MARA ETF | Concentration Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Concentration Risk. To the extent that the Underlying Asset concentrates its investments in a particular industry, the Fund will be subject to the risks associated with that industry.
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| GraniteShares Autocallable MARA ETF | ETF Risks [Member] | |||||||||||||||||||
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| Risk [Text Block] | ETF Risks.
Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that are authorized to purchase and redeem Shares directly from the Fund (known as “Authorized Participants” or “APs”). There are a limited number of financial institutions that post collateral for certain trades on an agency basis (i.e. on behalf of other market participants). In such circumstances, the Fund’s market price may be significantly different than its underlying net asset value. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services; or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
Cash Redemption Risk. The Fund currently expects to effect a significant portion of its creations and redemptions for cash, rather than in-kind securities. Paying redemption proceeds in cash rather than through in-kind delivery of portfolio securities may require the Fund to dispose of or sell portfolio securities or other assets at an inopportune time to obtain the cash needed to meet redemption orders. This may cause the Fund to sell a security and recognize a capital gain or loss that might not have been incurred if it had made a redemption in-kind. As a result, the Fund may pay out higher or lower annual capital gains distributions than ETFs that redeem in-kind. The use of cash creations and redemptions may also cause the Fund’s Shares to trade in the market at greater bid-ask spreads or greater premiums or discounts to the Fund’s NAV. Furthermore, the Fund may not be able to execute cash transactions for creation and redemption purposes at the same price used to determine the Fund’s NAV. To the extent that the maximum additional charge for creation or redemption transactions is insufficient to cover the execution shortfall, the Fund’s performance could be negatively impacted.
Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid-ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.
Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant.
Trading. Although Shares are listed on a national securities exchange, such as The Nasdaq Stock Market, LLC (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that an active trading market for the Shares will develop or be maintained or that the Shares will trade with any volume, or at all, on any stock exchange. This risk may be greater for the Fund as it seeks to have exposure to a single underlying stock as opposed to a more diverse portfolio like a traditional pooled investment. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares. Shares trade on the Exchange at a market price that may be below, at or above the Fund’s NAV. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged. In the event of an unscheduled market close for options contracts that reference a single stock, such as the Underlying Asset’s securities being halted or a market wide closure, settlement prices will be determined by the procedures of the listing exchange of the options contracts. As a result, the Fund could be adversely affected and be unable to implement its investment strategies in the event of an unscheduled closing.
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| GraniteShares Autocallable MARA ETF | High Portfolio Turnover Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | High Portfolio Turnover Risk. The Fund may actively and frequently trade all or a significant portion of the Fund’s holdings. A high portfolio turnover rate increases transaction costs, which may increase the Fund’s expenses. Frequent trading may also cause adverse tax consequences for investors in the Fund due to an increase in short-term capital gains.
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| GraniteShares Autocallable MARA ETF | Inflation Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the present value of the Fund’s assets and distributions, if any, may decline.
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| GraniteShares Autocallable MARA ETF | Liquidity Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Liquidity Risk. Some securities held by the Fund, including options contracts, may be difficult to sell or be illiquid, particularly during times of market turmoil. This risk is greater for the Fund as it will hold options contracts on a single security, and not a broader range of options contracts. Markets for securities or financial instruments could be disrupted by a number of events, including, but not limited to, an economic crisis, natural disasters, epidemics/pandemics, new legislation or regulatory changes inside or outside the United States. Illiquid securities may be difficult to value, especially in changing or volatile markets. If the Fund is forced to sell an illiquid security at an unfavorable time or price, the Fund may be adversely impacted. Certain market conditions or restrictions, such as market rules related to short sales, may prevent the Fund from limiting losses, realizing gains or achieving a high correlation with the Underlying Asset. There is no assurance that a security that is deemed liquid when purchased will continue to be liquid. Market illiquidity may cause losses for the Fund.
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| GraniteShares Autocallable MARA ETF | Management Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Management Risk. The Fund is subject to management risk because it is an actively managed portfolio. In managing the Fund’s investment portfolio, the portfolio managers will apply investment techniques and risk analyses that may not produce the desired result. There can be no guarantee that the Fund will meet its investment objective.
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| GraniteShares Autocallable MARA ETF | Money Market Instrument Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Repurchase agreements are contracts in which a seller of securities agrees to buy the securities back at a specified time and price. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments, including money market funds, may lose money through fees or other means.
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| GraniteShares Autocallable MARA ETF | New Fund Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | New Fund Risk. The Fund is a recently organized management investment company with limited operating history. As a result, prospective investors do not have a track record or history on which to base their investment decisions.
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| GraniteShares Autocallable MARA ETF | Non-Diversification Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Non-Diversification Risk. Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer or a smaller number of issuers than if it was a diversified fund. As a result, a decline in the value of an investment in a single issuer or a smaller number of issuers could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio.
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| GraniteShares Autocallable MARA ETF | Operational Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Operational Risk. The Fund is subject to risks arising from various operational factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund relies on third-parties for a range of services, including custody. Any delay or failure relating to engaging or maintaining such service providers may affect the Fund’s ability to meet its investment objective. Although the Fund and the Adviser seek to reduce these operational risks through controls and procedures, there is no way to completely protect against such risks.
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| GraniteShares Autocallable MARA ETF | Recent Market Events Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Recent Market Events Risk. U.S. and international markets have experienced significant periods of volatility in recent years due to a number of economic, political and global macro factors, including uncertainty regarding interest rates and inflation, rising government debt in the U.S. and elsewhere, political events, changes in trade policy and armed conflict. Public health emergencies, such as the COVID-19 pandemic, have in the past caused, and may in the future cause, disruptions to business operations and supply chains, reduced consumer demand and significant market volatility. Armed conflict, including the conflict between Russia and Ukraine and conflicts in the Middle East, has caused, and could continue to cause, loss of life and severe adverse effects on regional and global economies and on the markets for certain securities and commodities. The U.S., the European Union and other countries have imposed, and may impose additional, sanctions and other restrictive measures on certain countries, individuals and companies, which could adversely affect the issuers, markets and economies concerned. In addition, the U.S. has imposed, and may continue to impose, tariffs and other trade barriers, and other countries have imposed or may impose retaliatory measures. Trade disputes between the U.S. and other countries could result in additional tariffs, trade barriers and/or investment restrictions. These and other events could adversely affect the Fund’s performance, and their duration and full effects cannot be predicted.
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| GraniteShares Autocallable MARA ETF | Single Issuer Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Single Issuer Risk. Issuer-specific attributes may cause an investment in the Fund to be more volatile than a traditional pooled investment vehicle which diversifies risk or the market generally. The value of the Fund, which focuses on an individual security (the Underlying Asset), may be more volatile than a traditional pooled investment or the market as a whole and may perform differently from the value of a traditional pooled investment or the market as a whole.
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| GraniteShares Autocallable MARA ETF | Tax Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Tax Risk. The Fund intends to elect and to qualify each year to be treated as a RIC under Subchapter M of the Code. As a RIC, the Fund will not be subject to U.S. federal income tax on the portion of its net investment income and net capital gain that it distributes to Shareholders, provided that it satisfies certain requirements of the Code. If the Fund does not qualify as a RIC for any taxable year and certain relief provisions are not available, the Fund’s taxable income will be subject to tax at the Fund level and to a further tax at the shareholder level when such income is distributed. To comply with the asset diversification test applicable to a RIC, the Fund will attempt to ensure that the value of the derivatives it holds never exceed 25% of the total value of Fund assets at the close of any quarter. If the Fund’s investments in the derivatives were to exceed 25% of the Fund’s total assets at the end of a tax quarter, the Fund, generally, has a grace period to cure such lack of compliance. If the Fund fails to timely cure, it may no longer be eligible to be treated as a RIC. In addition, distributions received by the Fund from the Underlying Asset may generate “bad income” that could prevent the Fund from meeting the “Income Requirement” of Subchapter M of the Code, which may cause the Fund to fail to qualify as a RIC. The Fund intends to treat any income it may derive from the options and swap contracts as “qualifying income” under the provisions of the Code applicable to RICs. If the income is not qualifying income the Fund may lose its status as a RIC. The Fund will, for each year, distribute substantially all of its net investment income and net capital gains.
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| GraniteShares Autocallable MARA ETF | Investing In U.S. Equities Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Investing in U.S. Equities Risk. Investing in U.S. issuers subjects the Fund to legal, regulatory, political, currency, security, and economic risks that are specific to the U.S. Certain changes in the U.S., such as a weakening of the U.S. economy or a decline in its financial markets, may have an adverse effect on U.S. issuers.
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| GraniteShares Autocallable MARA ETF | Affiliated Etfs Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Affiliated ETFs Risk. The Fund may invest in equity securities of other ETFs for which the Adviser serves as investment adviser. It is possible that a conflict of interest may arise. Additionally, to the extent the Fund invests in the securities of another affiliated ETF, the Fund will be subject to the investment risks of the ETF. Shareholders of the Fund are subject to duplicative expenses to the extent of the Fund’s investment in any affiliated ETF. Finally, the shares of the ETFs in which the Fund may invest will be listed on a national securities exchange and the Fund will purchase or sell these shares on the secondary market at its current market price, which may be more or less than its net asset value per share.
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| GraniteShares Autocallable MARA ETF | Box Spread E T F Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Box Spread ETF Risk. The Fund may invest in LBOX, an affiliated ETF advised by GraniteShares Advisors LLC, the Fund’s investment adviser, that employs a market-neutral box spread strategy to generate short-term, fixed-income-like returns. Box spread positions involve simultaneous long and short synthetic options positions on the same reference asset and are structured to capture an implied financing rate. While box spreads are designed to be market-neutral and to generate a return approximating prevailing short-term interest rates, they are subject to execution risk, counterparty risk with respect to the options positions, and the risk that the implied financing rate embedded in the box spread diverges from prevailing market rates in periods of market stress. The Fund’s investments in LBOX are made pursuant to Section 12(d)(1)(G) of the 1940 Act, which imposes no percentage-of-assets limits on the Fund’s investment in an exchange-traded fund. Accordingly, the Fund could, at any time, hold a material allocation in LBOX. The Fund’s adviser faces a conflict of interest in allocating Fund assets to an affiliated fund such as LBOX; see “Affiliated ETFs Risk.”
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| GraniteShares Autocallable MARA ETF | U.S. Government And U.S. Agency Obligations Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | U.S. Government and U.S. Agency Obligations Risk. The Fund may invest in securities issued by the U.S. government or its agencies or instrumentalities. U.S. Government obligations include securities issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, such as the U.S. Treasury. Payment of principal and interest on U.S. Government obligations may be backed by the full faith and credit of the United States or may be backed solely by the issuing or guaranteeing agency or instrumentality itself. In the latter case, the investor must look principally to the agency or instrumentality issuing or guaranteeing the obligation for ultimate repayment, which agency or instrumentality may be privately owned. There can be no assurance that the U.S. Government would provide financial support to its agencies or instrumentalities (including government-sponsored enterprises) where it is not obligated to do so.
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| GraniteShares Autocallable MARA ETF | Fixed Income Securities Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Fixed Income Securities Risk. The market value of Fixed Income Securities will change in response to interest rate changes and other factors, such as changes in the effective maturities and credit ratings of fixed income investments. During periods of falling interest rates, the values of outstanding Fixed Income Securities and related financial instruments generally rise. Conversely, during periods of rising interest rates, the values of such securities and related financial instruments generally decline. Fixed Income Securities are also subject to credit risk.
Investments in Fixed Income Securities may also involve the following risks, depending on the instrument involved:
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| GraniteShares Autocallable MARA ETF | Bitcoin Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Bitcoin Risk. The performance of the Underlying Asset, and consequently the Fund’s performance, is subject to risks associated with bitcoin. Investing in bitcoin exposes to significant risks that are not typically present in other investments. These risks include the uncertainty surrounding new technology, limited evaluation due to bitcoin’s short trading history, and the potential decline in adoption and value over the long term. The extreme volatility of bitcoin’s price is also a risk factor. Regulatory uncertainties, such as potential government interventions and conflicting regulations across jurisdictions, can impact the demand for bitcoin and restrict its usage. Bitcoin is not presently widely accepted as a medium of exchange, which may be due to a number of common impediments and/or disadvantages to adopting the Bitcoin Network as a payment network, including the slowness of transaction processing and finality, variability of transaction fees, and volatility of the price of bitcoin. Additionally, risks associated with the sale of newly mined bitcoin, bitcoin trading platforms, competition from alternative digital assets, mining operations, network modifications, and intellectual property claims pose further challenges to bitcoin-linked investments. The value of bitcoin has been, may continue to be, substantially dependent on speculation, such that trading and investing in these assets generally may not be based on fundamental analysis. The Fund’s daily returns may be affected by many factors but will depend on the performance and volatility of the Underlying Asset.
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| GraniteShares Autocallable MARA ETF | Bitcoin Halving Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Bitcoin Halving Risk. While bitcoin prices have historically increased around halving events (a process designed to control the overall supply and reduce the risk of inflation in bitcoin, which uses a proof-of-work consensus algorithm and results in the mining reward being cut in half) there is no guarantee that the price change will be favorable or would compensate for the reduction in mining rewards. If a corresponding and proportionate increase in the price of Bitcoin does not follow future halving events, the revenue the Underlying Asset earns from its bitcoin mining operations would see a decrease, which could have a material adverse effect on Underlying Asset’s results of operations and financial condition.
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| GraniteShares Autocallable MARA ETF | Hash Rate And Difficulty Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Hash Rate and Difficulty Risk. As demand for bitcoin has increased, the global network hash rate (i.e., the aggregate amount of computing power devoted to supporting the bitcoin blockchain at a given time) has increased rapidly, and as greater adoption of bitcoin occurs, it is expected that demand for new bitcoin will likewise increase as more mining companies are drawn into the industry by this increased demand. Further, as a greater number of increasingly powerful miners have been deployed, the network difficulty for bitcoin has consequently also increased. A high difficulty means that more computing power will be required in order to solve a block and earn a new bitcoin reward, which, in turn, makes the bitcoin network more secure by limiting the possibility of one miner or mining pool gaining control of the network. Therefore, as new and existing miners deploy additional hash rate, the global network hash rate will continue to increase, meaning a miner’s share of the global network hash rate (and therefore its chance of earning bitcoin rewards) will decline if it fails to deploy additional hash rate at pace with the industry. If an effort to grow the hash rate, results in the inability to complete planned expansions on schedule and within anticipated cost estimates, deployment of newly purchased miners may be delayed, which could affect its competitiveness and results of operation, which could have a material adverse effect on the Underlying Asset’s financial condition and market price for its securities.
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| GraniteShares Autocallable MARA ETF | Blockchain Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Blockchain Risk. Blockchain companies may be adversely impacted by government regulations or economic conditions. Blockchain technology is new and its uses are in many cases untested or unclear. These companies may also have significant exposure to fluctuations in the spot prices of digital assets, particularly to the extent that demand for a company’s hardware or services may increase as the spot price of digital assets increase. Blockchain companies typically face intense competition and potentially rapid product obsolescence. In addition, many Blockchain companies store sensitive consumer information and could be the target of cybersecurity attacks and other types of theft, which could have a negative impact on these companies. Access to a given blockchain may require a specific cryptographic key (in effect a string of characters granting unique access to initiate transactions related to specific digital assets) or set of keys, the theft, loss, or destruction of which, either by accident or as a result of the efforts of a third party, could irrevocably impair a claim to the digital assets stored on that blockchain. Many Blockchain companies currently operate under less regulatory scrutiny than traditional financial services companies and banks, but there is significant risk that regulatory oversight could increase in the future. Higher levels of regulation could increase costs and adversely impact the current business models of some Blockchain companies. For example, restrictions imposed by foreign governments, including China, on the use and mining of digital assets, may adversely impact Blockchain Companies and in turn the Fund. These companies could be negatively impacted by disruptions in service caused by hardware or software failure, or by interruptions or delays in service by third-party data center hosting facilities and maintenance providers. Blockchain companies involved in digital assets may face slow adoption rates and be subject to higher levels of regulatory scrutiny in the future, which could severely impact the viability of these companies. Blockchain companies, especially smaller companies, tend to be more volatile than companies that do not rely heavily on technology. The customers and/or suppliers of Blockchain companies may be concentrated in a particular country, region or industry. Any adverse event affecting one of these countries, regions or industries could have a negative impact on Blockchain companies.
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| GraniteShares Autocallable META ETF | |||||||||||||||||||
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| Risk [Text Block] | PRINCIPAL RISKS OF INVESTING IN THE FUND
The principal risks of investing in the Fund are summarized below. As with any investment, there is a risk that you could lose all or a portion of your investment in the Fund. Each risk summarized below is considered a “principal risk” of investing in the Fund, regardless of the order in which it appears. Some or all of these risks may adversely affect the Fund’s net asset value per share (“NAV”), trading price, yield, total return and/or ability to meet its investment objectives. For more information about the risks of investing in the Fund, see the section in the Fund’s Prospectus titled “Additional Information About the Fund — Principal Risks of Investing in the Fund.”
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| GraniteShares Autocallable META ETF | Underlying Asset Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Underlying Asset Risk. The performance of the Underlying Asset, and consequently the Fund’s performance, is subject to the risks of the social media and computer programming industry. The Underlying Asset is subject to many risks that can negatively impact its revenue and viability including, but are not limited to price volatility risk, management risk, inflation risk, global economic risk, growth risk, supply and demand risk, operations risk, regulatory risk, environmental risk, terrorism risk and the risk of natural disasters. The Underlying Asset performance may be affected by the company’s ability to add and retain users of its social media products, disruption in service caused by hardware or software failure, interruptions or delays in service by third-party data center hosting facilities and maintenance providers, security breaches involving certain private, sensitive, proprietary and confidential information its ability to enforce its intellectual property rights and increased competition in the social and digital media space. Additionally, the collection of data from consumers and other sources could face increased scrutiny as regulators consider how the data is collected, stored, safeguarded and used. The Fund’s daily returns may be affected by many factors but will depend on the performance and volatility of the Underlying Asset.
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| GraniteShares Autocallable META ETF | Derivatives Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Derivatives Risk. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds, interest rates or indexes. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other ordinary investments, including risk related to the market, imperfect correlation with underlying investments, higher price volatility, lack of availability, counterparty risk, liquidity, valuation and legal restrictions. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. The use of derivatives may result in larger losses or smaller gains than directly investing in securities. When the Fund uses derivatives, there may be an imperfect correlation between the value of the Underlying Asset and the derivative, which may prevent the Fund from achieving its investment objectives. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of those amounts initially invested. In addition, the Fund’s investments in derivatives are subject to the following risks:
Options Contracts. The use of options contracts involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which are affected by fiscal and monetary policies and by national and international political, changes in the actual or implied volatility or the reference asset, the time remaining until the expiration of the option contract and economic events. For the Fund, in particular, the value of the options contracts in which it invests is substantially influenced by the value of the Underlying Asset. Selling put options exposes the Fund to the risk of potential loss if the market value of the Underlying Asset falls below the strike price before the option expires. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to such date, the value of an option generally does not increase or decrease at the same rate at the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the underlying instrument, and there may at times not be a liquid secondary market for certain options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. Additionally, the Fund’s practice of “rolling” may cause the Fund to experience losses if the expiring contracts do not generate proceeds enough to cover the costs of entering into new options contracts. Rolling refers to the practice of closing out one options position and opening another with a different expiration date and/or a different strike price. Further, if an option is exercised, the seller (writer) of a put option is obligated to purchase the underlying asset at the strike price, which can result in significant financial and regulatory obligations for the Fund if the market value of the asset has fallen substantially. Furthermore, when the Fund seeks to trade out of puts, especially near expiration, there is an added risk that the Fund may be required to allocate resources unexpectedly to fulfill these obligations. This potential exposure to physical settlement can significantly impact the Fund’s liquidity and market exposure, particularly in volatile market conditions.
Swap Risk: Swaps are subject to tracking risk because they may not be perfect substitutes for the instruments they are intended to hedge or replace. Over the counter swaps are subject to counterparty default. Leverage inherent in derivatives will tend to magnify the Fund’s losses. The swap agreements may reference standardized exchange-traded, FLEX, European Style or American Style put options contracts that are based on the values of the price returns of the Underlying Asset. that generate specific risks.
Counterparty Risk. Counterparty risk is the risk that a counterparty to a financial instrument held by the Fund or by a special purpose or structured vehicle invested in by the Fund may become insolvent or otherwise fail to perform its obligations, and the Fund may obtain no or limited recovery of its investment, and any recovery may be significantly delayed.
Over-the-Counter Market Risk. Securities and options traded in over-the-counter markets may trade less frequently and in limited volumes and thus exhibit more volatility and liquidity risk, and the prices paid by the Fund in over-the-counter transactions may include an undisclosed dealer markup. The Fund is also exposed to default by the over-the-counter option writer who may be unwilling or unable to perform its contractual obligations to the Fund.
In addition, a counterparty (the other party to a transaction or an agreement or the party with whom the Fund executes transactions) to a transaction (including repurchase transaction) with the Fund may be unable or unwilling to make timely principal, interest or settlement payments, or otherwise honor its obligations.
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| GraniteShares Autocallable META ETF | Autocallable Structure Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Autocallable Structure Risk. The Fund’s returns are correlated to the performance of a theoretical portfolio of autocallables. Autocallables have specific structural features that may be unfamiliar to many investors:
Contingent Income Risk. Coupon payments from autocallables are not guaranteed and will not be made if the Underlying Asset falls below the Coupon Barrier on observation dates. This means the Fund may generate significantly less income than anticipated during market downturns. The expected absence of future coupon payments over the term of an autocallable could materially affect its value.
Early Redemption Risk. Autocallables may be called before their scheduled maturity if the Underlying Asset reaches or exceeds the Autocallable Barrier on observation dates. This automatic early redemption could force reinvestment of that portion of the portfolio at lower rates if market yields have declined.
Barrier Risk. If the Underlying Asset falls below the Maturity Barrier at the maturity of an autocallable, that portion of the portfolio will be fully exposed to the negative performance of the Underlying Asset from its initial level. For example, if the Underlying Asset has declined 45% at maturity of a particular autocallable, the portfolio allocated to that autocallable would lose 45% of its value. This conditional protection creates a binary outcome that can result in sudden, significant losses if barriers are breached.
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| GraniteShares Autocallable META ETF | Calculation Methodology Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Calculation Methodology Risk. Autocallables rely on complex calculation methodologies that may not perform as expected under certain market conditions.
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| GraniteShares Autocallable META ETF | Distribution Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective, the Fund seeks to provide current monthly income. There is no assurance that the Fund will make a distribution in any given month. If the Fund makes distributions, the amounts of such distributions will likely vary greatly from one distribution to the next. Additionally, the monthly distributions, if any, may consist of returns of capital, which would decrease the Fund’s NAV and trading price over time. As a result, an investor may suffer significant losses to their investment.
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| GraniteShares Autocallable META ETF | NAV Erosion Risk Due to Distributions [Member] | |||||||||||||||||||
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| GraniteShares Autocallable META ETF | Option Market Liquidity Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Option Market Liquidity Risk. Liquidity risk exists when particular investments are difficult to purchase or sell. The Fund’s investments in illiquid investments may reduce the returns of the Fund because it may be unable to sell the illiquid investments at an advantageous time or price.
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| GraniteShares Autocallable META ETF | Laddered Portfolio Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Laddered Portfolio Risk. A laddered portfolio strategy may not perform as expected if market conditions remain unfavorable over an extended period, multiple autocallable instruments may experience losses simultaneously and/or the reallocation across autocallable instruments may result in suboptimal entry points during rapidly changing markets. A portfolio of autocallables providing exposure to the same Underlying Asset may not be homogeneously affected by a change in that Underlying Asset price as the impact of such change may depend on the tenor of each autocallable. Depending on market conditions, requests to create and/or redeem shares in the Fund may result in the average tenor of the portfolio of autocallables held by the Fund to deviate from the average tenor the Fund intends to achieve.
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| GraniteShares Autocallable META ETF | Concentration Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Concentration Risk. To the extent that the Underlying Asset concentrates its investments in a particular industry, the Fund will be subject to the risks associated with that industry.
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| GraniteShares Autocallable META ETF | ETF Risks [Member] | |||||||||||||||||||
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| Risk [Text Block] | ETF Risks.
Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that are authorized to purchase and redeem Shares directly from the Fund (known as “Authorized Participants” or “APs”). There are a limited number of financial institutions that post collateral for certain trades on an agency basis (i.e. on behalf of other market participants). In such circumstances, the Fund’s market price may be significantly different than its underlying net asset value. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services; or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
Cash Redemption Risk. The Fund currently expects to effect a significant portion of its creations and redemptions for cash, rather than in-kind securities. Paying redemption proceeds in cash rather than through in-kind delivery of portfolio securities may require the Fund to dispose of or sell portfolio securities or other assets at an inopportune time to obtain the cash needed to meet redemption orders. This may cause the Fund to sell a security and recognize a capital gain or loss that might not have been incurred if it had made a redemption in-kind. As a result, the Fund may pay out higher or lower annual capital gains distributions than ETFs that redeem in-kind. The use of cash creations and redemptions may also cause the Fund’s Shares to trade in the market at greater bid-ask spreads or greater premiums or discounts to the Fund’s NAV. Furthermore, the Fund may not be able to execute cash transactions for creation and redemption purposes at the same price used to determine the Fund’s NAV. To the extent that the maximum additional charge for creation or redemption transactions is insufficient to cover the execution shortfall, the Fund’s performance could be negatively impacted.
Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid-ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.
Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant.
Trading. Although Shares are listed on a national securities exchange, such as The Nasdaq Stock Market, LLC (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that an active trading market for the Shares will develop or be maintained or that the Shares will trade with any volume, or at all, on any stock exchange. This risk may be greater for the Fund as it seeks to have exposure to a single underlying stock as opposed to a more diverse portfolio like a traditional pooled investment. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares. Shares trade on the Exchange at a market price that may be below, at or above the Fund’s NAV. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged. In the event of an unscheduled market close for options contracts that reference a single stock, such as the Underlying Asset’s securities being halted or a market wide closure, settlement prices will be determined by the procedures of the listing exchange of the options contracts. As a result, the Fund could be adversely affected and be unable to implement its investment strategies in the event of an unscheduled closing.
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| GraniteShares Autocallable META ETF | High Portfolio Turnover Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | High Portfolio Turnover Risk. The Fund may actively and frequently trade all or a significant portion of the Fund’s holdings. A high portfolio turnover rate increases transaction costs, which may increase the Fund’s expenses. Frequent trading may also cause adverse tax consequences for investors in the Fund due to an increase in short-term capital gains.
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| GraniteShares Autocallable META ETF | Inflation Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the present value of the Fund’s assets and distributions, if any, may decline.
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| GraniteShares Autocallable META ETF | Liquidity Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Liquidity Risk. Some securities held by the Fund, including options contracts, may be difficult to sell or be illiquid, particularly during times of market turmoil. This risk is greater for the Fund as it will hold options contracts on a single security, and not a broader range of options contracts. Markets for securities or financial instruments could be disrupted by a number of events, including, but not limited to, an economic crisis, natural disasters, epidemics/pandemics, new legislation or regulatory changes inside or outside the United States. Illiquid securities may be difficult to value, especially in changing or volatile markets. If the Fund is forced to sell an illiquid security at an unfavorable time or price, the Fund may be adversely impacted. Certain market conditions or restrictions, such as market rules related to short sales, may prevent the Fund from limiting losses, realizing gains or achieving a high correlation with the Underlying Asset. There is no assurance that a security that is deemed liquid when purchased will continue to be liquid. Market illiquidity may cause losses for the Fund.
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| GraniteShares Autocallable META ETF | Management Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Management Risk. The Fund is subject to management risk because it is an actively managed portfolio. In managing the Fund’s investment portfolio, the portfolio managers will apply investment techniques and risk analyses that may not produce the desired result. There can be no guarantee that the Fund will meet its investment objective.
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| GraniteShares Autocallable META ETF | Money Market Instrument Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Repurchase agreements are contracts in which a seller of securities agrees to buy the securities back at a specified time and price. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments, including money market funds, may lose money through fees or other means.
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| GraniteShares Autocallable META ETF | New Fund Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | New Fund Risk. The Fund is a recently organized management investment company with no operating history. As a result, prospective investors do not have a track record or history on which to base their investment decisions.
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| GraniteShares Autocallable META ETF | Non-Diversification Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Non-Diversification Risk. Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer or a smaller number of issuers than if it was a diversified fund. As a result, a decline in the value of an investment in a single issuer or a smaller number of issuers could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio.
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| GraniteShares Autocallable META ETF | Operational Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Operational Risk. The Fund is subject to risks arising from various operational factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund relies on third-parties for a range of services, including custody. Any delay or failure relating to engaging or maintaining such service providers may affect the Fund’s ability to meet its investment objective. Although the Fund and the Adviser seek to reduce these operational risks through controls and procedures, there is no way to completely protect against such risks.
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| GraniteShares Autocallable META ETF | Recent Market Events Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Recent Market Events Risk. U.S. and international markets have experienced significant periods of volatility in recent years due to a number of economic, political and global macro factors, including uncertainty regarding interest rates and inflation, rising government debt in the U.S. and elsewhere, political events, changes in trade policy and armed conflict. Public health emergencies, such as the COVID-19 pandemic, have in the past caused, and may in the future cause, disruptions to business operations and supply chains, reduced consumer demand and significant market volatility. Armed conflict, including the conflict between Russia and Ukraine and conflicts in the Middle East, has caused, and could continue to cause, loss of life and severe adverse effects on regional and global economies and on the markets for certain securities and commodities. The U.S., the European Union and other countries have imposed, and may impose additional, sanctions and other restrictive measures on certain countries, individuals and companies, which could adversely affect the issuers, markets and economies concerned. In addition, the U.S. has imposed, and may continue to impose, tariffs and other trade barriers, and other countries have imposed or may impose retaliatory measures. Trade disputes between the U.S. and other countries could result in additional tariffs, trade barriers and/or investment restrictions. These and other events could adversely affect the Fund’s performance, and their duration and full effects cannot be predicted.
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| GraniteShares Autocallable META ETF | Single Issuer Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Single Issuer Risk. Issuer-specific attributes may cause an investment in the Fund to be more volatile than a traditional pooled investment vehicle which diversifies risk or the market generally. The value of the Fund, which focuses on an individual security (the Underlying Asset), may be more volatile than a traditional pooled investment or the market as a whole and may perform differently from the value of a traditional pooled investment or the market as a whole.
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| GraniteShares Autocallable META ETF | Tax Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Tax Risk. The Fund intends to elect and to qualify each year to be treated as a RIC under Subchapter M of the Code. As a RIC, the Fund will not be subject to U.S. federal income tax on the portion of its net investment income and net capital gain that it distributes to Shareholders, provided that it satisfies certain requirements of the Code. If the Fund does not qualify as a RIC for any taxable year and certain relief provisions are not available, the Fund’s taxable income will be subject to tax at the Fund level and to a further tax at the shareholder level when such income is distributed. To comply with the asset diversification test applicable to a RIC, the Fund will attempt to ensure that the value of the derivatives it holds never exceed 25% of the total value of Fund assets at the close of any quarter. If the Fund’s investments in the derivatives were to exceed 25% of the Fund’s total assets at the end of a tax quarter, the Fund, generally, has a grace period to cure such lack of compliance. If the Fund fails to timely cure, it may no longer be eligible to be treated as a RIC. In addition, distributions received by the Fund from the Underlying Asset may generate “bad income” that could prevent the Fund from meeting the “Income Requirement” of Subchapter M of the Code, which may cause the Fund to fail to qualify as a RIC. The Fund intends to treat any income it may derive from the options and swap contracts as “qualifying income” under the provisions of the Code applicable to RICs. If the income is not qualifying income the Fund may lose its status as a RIC. The Fund will, for each year, distribute substantially all of its net investment income and net capital gains.
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| GraniteShares Autocallable META ETF | Investing In U.S. Equities Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Investing in U.S. Equities Risk. Investing in U.S. issuers subjects the Fund to legal, regulatory, political, currency, security, and economic risks that are specific to the U.S. Certain changes in the U.S., such as a weakening of the U.S. economy or a decline in its financial markets, may have an adverse effect on U.S. issuers.
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| GraniteShares Autocallable META ETF | Affiliated Etfs Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Affiliated ETFs Risk. The Fund may invest in equity securities of other ETFs for which the Adviser serves as investment adviser. It is possible that a conflict of interest may arise. Additionally, to the extent the Fund invests in the securities of another affiliated ETF, the Fund will be subject to the investment risks of the ETF. Shareholders of the Fund are subject to duplicative expenses to the extent of the Fund’s investment in any affiliated ETF. Finally, the shares of the ETFs in which the Fund may invest will be listed on a national securities exchange and the Fund will purchase or sell these shares on the secondary market at its current market price, which may be more or less than its net asset value per share.
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| GraniteShares Autocallable META ETF | Box Spread E T F Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Box Spread ETF Risk. The Fund may invest in LBOX, an affiliated ETF advised by GraniteShares Advisors LLC, the Fund’s investment adviser, that employs a market-neutral box spread strategy to generate short-term, fixed-income-like returns. Box spread positions involve simultaneous long and short synthetic options positions on the same reference asset and are structured to capture an implied financing rate. While box spreads are designed to be market-neutral and to generate a return approximating prevailing short-term interest rates, they are subject to execution risk, counterparty risk with respect to the options positions, and the risk that the implied financing rate embedded in the box spread diverges from prevailing market rates in periods of market stress. The Fund’s investments in LBOX are made pursuant to Section 12(d)(1)(G) of the 1940 Act, which imposes no percentage-of-assets limits on the Fund’s investment in an exchange-traded fund. Accordingly, the Fund could, at any time, hold a material allocation in LBOX. The Fund’s adviser faces a conflict of interest in allocating Fund assets to an affiliated fund such as LBOX; see “Affiliated ETFs Risk.”
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| GraniteShares Autocallable META ETF | U.S. Government And U.S. Agency Obligations Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | U.S. Government and U.S. Agency Obligations Risk. The Fund may invest in securities issued by the U.S. government or its agencies or instrumentalities. U.S. Government obligations include securities issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, such as the U.S. Treasury. Payment of principal and interest on U.S. Government obligations may be backed by the full faith and credit of the United States or may be backed solely by the issuing or guaranteeing agency or instrumentality itself. In the latter case, the investor must look principally to the agency or instrumentality issuing or guaranteeing the obligation for ultimate repayment, which agency or instrumentality may be privately owned. There can be no assurance that the U.S. Government would provide financial support to its agencies or instrumentalities (including government-sponsored enterprises) where it is not obligated to do so.
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| GraniteShares Autocallable META ETF | Fixed Income Securities Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Fixed Income Securities Risk. The market value of Fixed Income Securities will change in response to interest rate changes and other factors, such as changes in the effective maturities and credit ratings of fixed income investments. During periods of falling interest rates, the values of outstanding Fixed Income Securities and related financial instruments generally rise. Conversely, during periods of rising interest rates, the values of such securities and related financial instruments generally decline. Fixed Income Securities are also subject to credit risk.
Investments in Fixed Income Securities may also involve the following risks, depending on the instrument involved:
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| GraniteShares Autocallable MRVL ETF | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | PRINCIPAL RISKS OF INVESTING IN THE FUND
The principal risks of investing in the Fund are summarized below. As with any investment, there is a risk that you could lose all or a portion of your investment in the Fund. Each risk summarized below is considered a “principal risk” of investing in the Fund, regardless of the order in which it appears. Some or all of these risks may adversely affect the Fund’s net asset value per share (“NAV”), trading price, yield, total return and/or ability to meet its investment objectives. For more information about the risks of investing in the Fund, see the section in the Fund’s Prospectus titled “Additional Information About the Fund — Principal Risks of Investing in the Fund.”
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| GraniteShares Autocallable MRVL ETF | Underlying Asset Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Underlying Asset Risk. The performance of the Underlying Asset, and consequently the Fund’s performance, is subject to the risks of the semiconductor sector. The Underlying Asset is subject to many risks that can negatively impact its revenue and viability including, but are not limited to price volatility risk, management risk, inflation risk, global economic risk, growth risk, supply and demand risk, operations risk, regulatory risk, environmental risk, terrorism risk and the risk of natural disasters. The Underlying Asset performance may be affected by the company’s significant customer losses, its inability to develop and implement new technologies, its reliance on third-party distributors and platforms, cybersecurity attacks, its inability to protect its intellectual property rights and global laws and regulations affecting privacy, data protection and technology protections. The semiconductor industry may also be affected by risks that affect the broader technology sector, including: government regulation; dramatic and often unpredictable changes in growth rates and competition for qualified personnel; and a small number of companies representing a large portion of the technology sector as a whole. The Fund’s daily returns may be affected by many factors but will depend on the performance and volatility of the Underlying Asset.
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| GraniteShares Autocallable MRVL ETF | Derivatives Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Derivatives Risk. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds, interest rates or indexes. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other ordinary investments, including risk related to the market, imperfect correlation with underlying investments, higher price volatility, lack of availability, counterparty risk, liquidity, valuation and legal restrictions. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. The use of derivatives may result in larger losses or smaller gains than directly investing in securities. When the Fund uses derivatives, there may be an imperfect correlation between the value of the Underlying Asset and the derivative, which may prevent the Fund from achieving its investment objectives. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of those amounts initially invested. In addition, the Fund’s investments in derivatives are subject to the following risks:
Options Contracts. The use of options contracts involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which are affected by fiscal and monetary policies and by national and international political, changes in the actual or implied volatility or the reference asset, the time remaining until the expiration of the option contract and economic events. For the Fund, in particular, the value of the options contracts in which it invests is substantially influenced by the value of the Underlying Asset. Selling put options exposes the Fund to the risk of potential loss if the market value of the Underlying Asset falls below the strike price before the option expires. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to such date, the value of an option generally does not increase or decrease at the same rate at the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the underlying instrument, and there may at times not be a liquid secondary market for certain options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. Additionally, the Fund’s practice of “rolling” may cause the Fund to experience losses if the expiring contracts do not generate proceeds enough to cover the costs of entering into new options contracts. Rolling refers to the practice of closing out one options position and opening another with a different expiration date and/or a different strike price. Further, if an option is exercised, the seller (writer) of a put option is obligated to purchase the underlying asset at the strike price, which can result in significant financial and regulatory obligations for the Fund if the market value of the asset has fallen substantially. Furthermore, when the Fund seeks to trade out of puts, especially near expiration, there is an added risk that the Fund may be required to allocate resources unexpectedly to fulfill these obligations. This potential exposure to physical settlement can significantly impact the Fund’s liquidity and market exposure, particularly in volatile market conditions.
Swap Risk: Swaps are subject to tracking risk because they may not be perfect substitutes for the instruments they are intended to hedge or replace. Over the counter swaps are subject to counterparty default. Leverage inherent in derivatives will tend to magnify the Fund’s losses. The swap agreements may reference standardized exchange-traded, FLEX, European Style or American Style put options contracts that are based on the values of the price returns of the Underlying Asset. that generate specific risks.
Counterparty Risk. Counterparty risk is the risk that a counterparty to a financial instrument held by the Fund or by a special purpose or structured vehicle invested in by the Fund may become insolvent or otherwise fail to perform its obligations, and the Fund may obtain no or limited recovery of its investment, and any recovery may be significantly delayed.
Over-the-Counter Market Risk. Securities and options traded in over-the-counter markets may trade less frequently and in limited volumes and thus exhibit more volatility and liquidity risk, and the prices paid by the Fund in over-the-counter transactions may include an undisclosed dealer markup. The Fund is also exposed to default by the over-the-counter option writer who may be unwilling or unable to perform its contractual obligations to the Fund.
In addition, a counterparty (the other party to a transaction or an agreement or the party with whom the Fund executes transactions) to a transaction (including repurchase transaction) with the Fund may be unable or unwilling to make timely principal, interest or settlement payments, or otherwise honor its obligations.
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| GraniteShares Autocallable MRVL ETF | Autocallable Structure Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Autocallable Structure Risk. The Fund’s returns are correlated to the performance of a theoretical portfolio of autocallables. Autocallables have specific structural features that may be unfamiliar to many investors:
Contingent Income Risk. Coupon payments from autocallables are not guaranteed and will not be made if the Underlying Asset falls below the Coupon Barrier on observation dates. This means the Fund may generate significantly less income than anticipated during market downturns. The expected absence of future coupon payments over the term of an autocallable could materially affect its value.
Early Redemption Risk. Autocallables may be called before their scheduled maturity if the Underlying Asset reaches or exceeds the Autocallable Barrier on observation dates. This automatic early redemption could force reinvestment of that portion of the portfolio at lower rates if market yields have declined.
Barrier Risk. If the Underlying Asset falls below the Maturity Barrier at the maturity of an autocallable, that portion of the portfolio will be fully exposed to the negative performance of the Underlying Asset from its initial level. For example, if the Underlying Asset has declined 45% at maturity of a particular autocallable, the portfolio allocated to that autocallable would lose 45% of its value. This conditional protection creates a binary outcome that can result in sudden, significant losses if barriers are breached.
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| GraniteShares Autocallable MRVL ETF | Calculation Methodology Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Calculation Methodology Risk. Autocallables rely on complex calculation methodologies that may not perform as expected under certain market conditions.
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| GraniteShares Autocallable MRVL ETF | Distribution Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective, the Fund seeks to provide current monthly income. There is no assurance that the Fund will make a distribution in any given month. If the Fund makes distributions, the amounts of such distributions will likely vary greatly from one distribution to the next. Additionally, the monthly distributions, if any, may consist of returns of capital, which would decrease the Fund’s NAV and trading price over time. As a result, an investor may suffer significant losses to their investment.
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| GraniteShares Autocallable MRVL ETF | NAV Erosion Risk Due to Distributions [Member] | |||||||||||||||||||
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| Risk [Text Block] |
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| GraniteShares Autocallable MRVL ETF | Option Market Liquidity Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Option Market Liquidity Risk. Liquidity risk exists when particular investments are difficult to purchase or sell. The Fund’s investments in illiquid investments may reduce the returns of the Fund because it may be unable to sell the illiquid investments at an advantageous time or price.
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| GraniteShares Autocallable MRVL ETF | Laddered Portfolio Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Laddered Portfolio Risk. A laddered portfolio strategy may not perform as expected if market conditions remain unfavorable over an extended period, multiple autocallable instruments may experience losses simultaneously and/or the reallocation across autocallable instruments may result in suboptimal entry points during rapidly changing markets. A portfolio of autocallables providing exposure to the same Underlying Asset may not be homogeneously affected by a change in that Underlying Asset price as the impact of such change may depend on the tenor of each autocallable. Depending on market conditions, requests to create and/or redeem shares in the Fund may result in the average tenor of the portfolio of autocallables held by the Fund to deviate from the average tenor the Fund intends to achieve.
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| GraniteShares Autocallable MRVL ETF | Concentration Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Concentration Risk. To the extent that the Underlying Asset concentrates its investments in a particular industry, the Fund will be subject to the risks associated with that industry.
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| GraniteShares Autocallable MRVL ETF | ETF Risks [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | ETF Risks.
Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that are authorized to purchase and redeem Shares directly from the Fund (known as “Authorized Participants” or “APs”). There are a limited number of financial institutions that post collateral for certain trades on an agency basis (i.e. on behalf of other market participants). In such circumstances, the Fund’s market price may be significantly different than its underlying net asset value. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services; or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
Cash Redemption Risk. The Fund currently expects to effect a significant portion of its creations and redemptions for cash, rather than in-kind securities. Paying redemption proceeds in cash rather than through in-kind delivery of portfolio securities may require the Fund to dispose of or sell portfolio securities or other assets at an inopportune time to obtain the cash needed to meet redemption orders. This may cause the Fund to sell a security and recognize a capital gain or loss that might not have been incurred if it had made a redemption in-kind. As a result, the Fund may pay out higher or lower annual capital gains distributions than ETFs that redeem in-kind. The use of cash creations and redemptions may also cause the Fund’s Shares to trade in the market at greater bid-ask spreads or greater premiums or discounts to the Fund’s NAV. Furthermore, the Fund may not be able to execute cash transactions for creation and redemption purposes at the same price used to determine the Fund’s NAV. To the extent that the maximum additional charge for creation or redemption transactions is insufficient to cover the execution shortfall, the Fund’s performance could be negatively impacted.
Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid-ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.
Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant.
Trading. Although Shares are listed on a national securities exchange, such as The Nasdaq Stock Market, LLC (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that an active trading market for the Shares will develop or be maintained or that the Shares will trade with any volume, or at all, on any stock exchange. This risk may be greater for the Fund as it seeks to have exposure to a single underlying stock as opposed to a more diverse portfolio like a traditional pooled investment. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares. Shares trade on the Exchange at a market price that may be below, at or above the Fund’s NAV. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged. In the event of an unscheduled market close for options contracts that reference a single stock, such as the Underlying Asset’s securities being halted or a market wide closure, settlement prices will be determined by the procedures of the listing exchange of the options contracts. As a result, the Fund could be adversely affected and be unable to implement its investment strategies in the event of an unscheduled closing.
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| GraniteShares Autocallable MRVL ETF | High Portfolio Turnover Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | High Portfolio Turnover Risk. The Fund may actively and frequently trade all or a significant portion of the Fund’s holdings. A high portfolio turnover rate increases transaction costs, which may increase the Fund’s expenses. Frequent trading may also cause adverse tax consequences for investors in the Fund due to an increase in short-term capital gains.
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| GraniteShares Autocallable MRVL ETF | Inflation Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the present value of the Fund’s assets and distributions, if any, may decline.
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| GraniteShares Autocallable MRVL ETF | Liquidity Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Liquidity Risk. Some securities held by the Fund, including options contracts, may be difficult to sell or be illiquid, particularly during times of market turmoil. This risk is greater for the Fund as it will hold options contracts on a single security, and not a broader range of options contracts. Markets for securities or financial instruments could be disrupted by a number of events, including, but not limited to, an economic crisis, natural disasters, epidemics/pandemics, new legislation or regulatory changes inside or outside the United States. Illiquid securities may be difficult to value, especially in changing or volatile markets. If the Fund is forced to sell an illiquid security at an unfavorable time or price, the Fund may be adversely impacted. Certain market conditions or restrictions, such as market rules related to short sales, may prevent the Fund from limiting losses, realizing gains or achieving a high correlation with the Underlying Asset. There is no assurance that a security that is deemed liquid when purchased will continue to be liquid. Market illiquidity may cause losses for the Fund.
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| GraniteShares Autocallable MRVL ETF | Management Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Management Risk. The Fund is subject to management risk because it is an actively managed portfolio. In managing the Fund’s investment portfolio, the portfolio managers will apply investment techniques and risk analyses that may not produce the desired result. There can be no guarantee that the Fund will meet its investment objective.
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| GraniteShares Autocallable MRVL ETF | Money Market Instrument Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Repurchase agreements are contracts in which a seller of securities agrees to buy the securities back at a specified time and price. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments, including money market funds, may lose money through fees or other means.
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| GraniteShares Autocallable MRVL ETF | New Fund Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | New Fund Risk. The Fund is a recently organized management investment company with no operating history. As a result, prospective investors do not have a track record or history on which to base their investment decisions.
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| GraniteShares Autocallable MRVL ETF | Non-Diversification Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Non-Diversification Risk. Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer or a smaller number of issuers than if it was a diversified fund. As a result, a decline in the value of an investment in a single issuer or a smaller number of issuers could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio.
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| GraniteShares Autocallable MRVL ETF | Operational Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Operational Risk. The Fund is subject to risks arising from various operational factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund relies on third-parties for a range of services, including custody. Any delay or failure relating to engaging or maintaining such service providers may affect the Fund’s ability to meet its investment objective. Although the Fund and the Adviser seek to reduce these operational risks through controls and procedures, there is no way to completely protect against such risks.
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| GraniteShares Autocallable MRVL ETF | Recent Market Events Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Recent Market Events Risk. U.S. and international markets have experienced significant periods of volatility in recent years due to a number of economic, political and global macro factors, including uncertainty regarding interest rates and inflation, rising government debt in the U.S. and elsewhere, political events, changes in trade policy and armed conflict. Public health emergencies, such as the COVID-19 pandemic, have in the past caused, and may in the future cause, disruptions to business operations and supply chains, reduced consumer demand and significant market volatility. Armed conflict, including the conflict between Russia and Ukraine and conflicts in the Middle East, has caused, and could continue to cause, loss of life and severe adverse effects on regional and global economies and on the markets for certain securities and commodities. The U.S., the European Union and other countries have imposed, and may impose additional, sanctions and other restrictive measures on certain countries, individuals and companies, which could adversely affect the issuers, markets and economies concerned. In addition, the U.S. has imposed, and may continue to impose, tariffs and other trade barriers, and other countries have imposed or may impose retaliatory measures. Trade disputes between the U.S. and other countries could result in additional tariffs, trade barriers and/or investment restrictions. These and other events could adversely affect the Fund’s performance, and their duration and full effects cannot be predicted.
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| GraniteShares Autocallable MRVL ETF | Single Issuer Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Single Issuer Risk. Issuer-specific attributes may cause an investment in the Fund to be more volatile than a traditional pooled investment vehicle which diversifies risk or the market generally. The value of the Fund, which focuses on an individual security (the Underlying Asset), may be more volatile than a traditional pooled investment or the market as a whole and may perform differently from the value of a traditional pooled investment or the market as a whole.
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| GraniteShares Autocallable MRVL ETF | Tax Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Tax Risk. The Fund intends to elect and to qualify each year to be treated as a RIC under Subchapter M of the Code. As a RIC, the Fund will not be subject to U.S. federal income tax on the portion of its net investment income and net capital gain that it distributes to Shareholders, provided that it satisfies certain requirements of the Code. If the Fund does not qualify as a RIC for any taxable year and certain relief provisions are not available, the Fund’s taxable income will be subject to tax at the Fund level and to a further tax at the shareholder level when such income is distributed. To comply with the asset diversification test applicable to a RIC, the Fund will attempt to ensure that the value of the derivatives it holds never exceed 25% of the total value of Fund assets at the close of any quarter. If the Fund’s investments in the derivatives were to exceed 25% of the Fund’s total assets at the end of a tax quarter, the Fund, generally, has a grace period to cure such lack of compliance. If the Fund fails to timely cure, it may no longer be eligible to be treated as a RIC. In addition, distributions received by the Fund from the Underlying Asset may generate “bad income” that could prevent the Fund from meeting the “Income Requirement” of Subchapter M of the Code, which may cause the Fund to fail to qualify as a RIC. The Fund intends to treat any income it may derive from the options and swap contracts as “qualifying income” under the provisions of the Code applicable to RICs. If the income is not qualifying income the Fund may lose its status as a RIC. The Fund will, for each year, distribute substantially all of its net investment income and net capital gains.
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| GraniteShares Autocallable MRVL ETF | Investing In U.S. Equities Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Investing in U.S. Equities Risk. Investing in U.S. issuers subjects the Fund to legal, regulatory, political, currency, security, and economic risks that are specific to the U.S. Certain changes in the U.S., such as a weakening of the U.S. economy or a decline in its financial markets, may have an adverse effect on U.S. issuers.
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| GraniteShares Autocallable MRVL ETF | Affiliated Etfs Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Affiliated ETFs Risk. The Fund may invest in equity securities of other ETFs for which the Adviser serves as investment adviser. It is possible that a conflict of interest may arise. Additionally, to the extent the Fund invests in the securities of another affiliated ETF, the Fund will be subject to the investment risks of the ETF. Shareholders of the Fund are subject to duplicative expenses to the extent of the Fund’s investment in any affiliated ETF. Finally, the shares of the ETFs in which the Fund may invest will be listed on a national securities exchange and the Fund will purchase or sell these shares on the secondary market at its current market price, which may be more or less than its net asset value per share.
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| GraniteShares Autocallable MRVL ETF | Box Spread E T F Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Box Spread ETF Risk. The Fund may invest in LBOX, an affiliated ETF advised by GraniteShares Advisors LLC, the Fund’s investment adviser, that employs a market-neutral box spread strategy to generate short-term, fixed-income-like returns. Box spread positions involve simultaneous long and short synthetic options positions on the same reference asset and are structured to capture an implied financing rate. While box spreads are designed to be market-neutral and to generate a return approximating prevailing short-term interest rates, they are subject to execution risk, counterparty risk with respect to the options positions, and the risk that the implied financing rate embedded in the box spread diverges from prevailing market rates in periods of market stress. The Fund’s investments in LBOX are made pursuant to Section 12(d)(1)(G) of the 1940 Act, which imposes no percentage-of-assets limits on the Fund’s investment in an exchange-traded fund. Accordingly, the Fund could, at any time, hold a material allocation in LBOX. The Fund’s adviser faces a conflict of interest in allocating Fund assets to an affiliated fund such as LBOX; see “Affiliated ETFs Risk.”
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| GraniteShares Autocallable MRVL ETF | U.S. Government And U.S. Agency Obligations Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | U.S. Government and U.S. Agency Obligations Risk. The Fund may invest in securities issued by the U.S. government or its agencies or instrumentalities. U.S. Government obligations include securities issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, such as the U.S. Treasury. Payment of principal and interest on U.S. Government obligations may be backed by the full faith and credit of the United States or may be backed solely by the issuing or guaranteeing agency or instrumentality itself. In the latter case, the investor must look principally to the agency or instrumentality issuing or guaranteeing the obligation for ultimate repayment, which agency or instrumentality may be privately owned. There can be no assurance that the U.S. Government would provide financial support to its agencies or instrumentalities (including government-sponsored enterprises) where it is not obligated to do so.
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| GraniteShares Autocallable MRVL ETF | Fixed Income Securities Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Fixed Income Securities Risk. The market value of Fixed Income Securities will change in response to interest rate changes and other factors, such as changes in the effective maturities and credit ratings of fixed income investments. During periods of falling interest rates, the values of outstanding Fixed Income Securities and related financial instruments generally rise. Conversely, during periods of rising interest rates, the values of such securities and related financial instruments generally decline. Fixed Income Securities are also subject to credit risk.
Investments in Fixed Income Securities may also involve the following risks, depending on the instrument involved:
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| GraniteShares Autocallable MSFT ETF | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | PRINCIPAL RISKS OF INVESTING IN THE FUND
The principal risks of investing in the Fund are summarized below. As with any investment, there is a risk that you could lose all or a portion of your investment in the Fund. Each risk summarized below is considered a “principal risk” of investing in the Fund, regardless of the order in which it appears. Some or all of these risks may adversely affect the Fund’s net asset value per share (“NAV”), trading price, yield, total return and/or ability to meet its investment objectives. For more information about the risks of investing in the Fund, see the section in the Fund’s Prospectus titled “Additional Information About the Fund — Principal Risks of Investing in the Fund.”
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| GraniteShares Autocallable MSFT ETF | Underlying Asset Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Underlying Asset Risk. The performance of the Underlying Asset, and consequently the Fund’s performance, is subject to the risks of the computer software industry. The Underlying Asset is subject to many risks that can negatively impact its revenue and viability including, but are not limited to price volatility risk, management risk, inflation risk, global economic risk, growth risk, supply and demand risk, operations risk, regulatory risk, environmental risk, terrorism risk and the risk of natural disasters. The Underlying Asset performance may be affected by competition in the microprocessor market, reliance on third-party manufacturers, the company’s ability to new develop new products, losses of significant customers, changes in customer demand for its products, risks associated with defective products political, legal and economic risks affecting the company’s global operations. The Fund’s daily returns may be affected by many factors but will depend on the performance and volatility of the Underlying Asset.
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| GraniteShares Autocallable MSFT ETF | Derivatives Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Derivatives Risk. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds, interest rates or indexes. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other ordinary investments, including risk related to the market, imperfect correlation with underlying investments, higher price volatility, lack of availability, counterparty risk, liquidity, valuation and legal restrictions. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. The use of derivatives may result in larger losses or smaller gains than directly investing in securities. When the Fund uses derivatives, there may be an imperfect correlation between the value of the Underlying Asset and the derivative, which may prevent the Fund from achieving its investment objectives. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of those amounts initially invested. In addition, the Fund’s investments in derivatives are subject to the following risks:
Options Contracts. The use of options contracts involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which are affected by fiscal and monetary policies and by national and international political, changes in the actual or implied volatility or the reference asset, the time remaining until the expiration of the option contract and economic events. For the Fund, in particular, the value of the options contracts in which it invests is substantially influenced by the value of the Underlying Asset. Selling put options exposes the Fund to the risk of potential loss if the market value of the Underlying Asset falls below the strike price before the option expires. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to such date, the value of an option generally does not increase or decrease at the same rate at the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the underlying instrument, and there may at times not be a liquid secondary market for certain options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. Additionally, the Fund’s practice of “rolling” may cause the Fund to experience losses if the expiring contracts do not generate proceeds enough to cover the costs of entering into new options contracts. Rolling refers to the practice of closing out one options position and opening another with a different expiration date and/or a different strike price. Further, if an option is exercised, the seller (writer) of a put option is obligated to purchase the underlying asset at the strike price, which can result in significant financial and regulatory obligations for the Fund if the market value of the asset has fallen substantially. Furthermore, when the Fund seeks to trade out of puts, especially near expiration, there is an added risk that the Fund may be required to allocate resources unexpectedly to fulfill these obligations. This potential exposure to physical settlement can significantly impact the Fund’s liquidity and market exposure, particularly in volatile market conditions.
Swap Risk: Swaps are subject to tracking risk because they may not be perfect substitutes for the instruments they are intended to hedge or replace. Over the counter swaps are subject to counterparty default. Leverage inherent in derivatives will tend to magnify the Fund’s losses. The swap agreements may reference standardized exchange-traded, FLEX, European Style or American Style put options contracts that are based on the values of the price returns of the Underlying Asset. that generate specific risks.
Counterparty Risk. Counterparty risk is the risk that a counterparty to a financial instrument held by the Fund or by a special purpose or structured vehicle invested in by the Fund may become insolvent or otherwise fail to perform its obligations, and the Fund may obtain no or limited recovery of its investment, and any recovery may be significantly delayed.
Over-the-Counter Market Risk. Securities and options traded in over-the-counter markets may trade less frequently and in limited volumes and thus exhibit more volatility and liquidity risk, and the prices paid by the Fund in over-the-counter transactions may include an undisclosed dealer markup. The Fund is also exposed to default by the over-the-counter option writer who may be unwilling or unable to perform its contractual obligations to the Fund.
In addition, a counterparty (the other party to a transaction or an agreement or the party with whom the Fund executes transactions) to a transaction (including repurchase transaction) with the Fund may be unable or unwilling to make timely principal, interest or settlement payments, or otherwise honor its obligations.
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| GraniteShares Autocallable MSFT ETF | Autocallable Structure Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Autocallable Structure Risk. The Fund’s returns are correlated to the performance of a theoretical portfolio of autocallables. Autocallables have specific structural features that may be unfamiliar to many investors:
Contingent Income Risk. Coupon payments from autocallables are not guaranteed and will not be made if the Underlying Asset falls below the Coupon Barrier on observation dates. This means the Fund may generate significantly less income than anticipated during market downturns. The expected absence of future coupon payments over the term of an autocallable could materially affect its value.
Early Redemption Risk. Autocallables may be called before their scheduled maturity if the Underlying Asset reaches or exceeds the Autocallable Barrier on observation dates. This automatic early redemption could force reinvestment of that portion of the portfolio at lower rates if market yields have declined.
Barrier Risk. If the Underlying Asset falls below the Maturity Barrier at the maturity of an autocallable, that portion of the portfolio will be fully exposed to the negative performance of the Underlying Asset from its initial level. For example, if the Underlying Asset has declined 45% at maturity of a particular autocallable, the portfolio allocated to that autocallable would lose 45% of its value. This conditional protection creates a binary outcome that can result in sudden, significant losses if barriers are breached.
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| GraniteShares Autocallable MSFT ETF | Calculation Methodology Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Calculation Methodology Risk. Autocallables rely on complex calculation methodologies that may not perform as expected under certain market conditions.
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| GraniteShares Autocallable MSFT ETF | Distribution Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective, the Fund seeks to provide current monthly income. There is no assurance that the Fund will make a distribution in any given month. If the Fund makes distributions, the amounts of such distributions will likely vary greatly from one distribution to the next. Additionally, the monthly distributions, if any, may consist of returns of capital, which would decrease the Fund’s NAV and trading price over time. As a result, an investor may suffer significant losses to their investment.
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| GraniteShares Autocallable MSFT ETF | NAV Erosion Risk Due to Distributions [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] |
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| GraniteShares Autocallable MSFT ETF | Option Market Liquidity Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Option Market Liquidity Risk. Liquidity risk exists when particular investments are difficult to purchase or sell. The Fund’s investments in illiquid investments may reduce the returns of the Fund because it may be unable to sell the illiquid investments at an advantageous time or price.
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| GraniteShares Autocallable MSFT ETF | Laddered Portfolio Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Laddered Portfolio Risk. A laddered portfolio strategy may not perform as expected if market conditions remain unfavorable over an extended period, multiple autocallable instruments may experience losses simultaneously and/or the reallocation across autocallable instruments may result in suboptimal entry points during rapidly changing markets. A portfolio of autocallables providing exposure to the same Underlying Asset may not be homogeneously affected by a change in that Underlying Asset price as the impact of such change may depend on the tenor of each autocallable. Depending on market conditions, requests to create and/or redeem shares in the Fund may result in the average tenor of the portfolio of autocallables held by the Fund to deviate from the average tenor the Fund intends to achieve.
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| GraniteShares Autocallable MSFT ETF | Concentration Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Concentration Risk. To the extent that the Underlying Asset concentrates its investments in a particular industry, the Fund will be subject to the risks associated with that industry.
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| GraniteShares Autocallable MSFT ETF | ETF Risks [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | ETF Risks.
Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that are authorized to purchase and redeem Shares directly from the Fund (known as “Authorized Participants” or “APs”). There are a limited number of financial institutions that post collateral for certain trades on an agency basis (i.e. on behalf of other market participants). In such circumstances, the Fund’s market price may be significantly different than its underlying net asset value. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services; or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
Cash Redemption Risk. The Fund currently expects to effect a significant portion of its creations and redemptions for cash, rather than in-kind securities. Paying redemption proceeds in cash rather than through in-kind delivery of portfolio securities may require the Fund to dispose of or sell portfolio securities or other assets at an inopportune time to obtain the cash needed to meet redemption orders. This may cause the Fund to sell a security and recognize a capital gain or loss that might not have been incurred if it had made a redemption in-kind. As a result, the Fund may pay out higher or lower annual capital gains distributions than ETFs that redeem in-kind. The use of cash creations and redemptions may also cause the Fund’s Shares to trade in the market at greater bid-ask spreads or greater premiums or discounts to the Fund’s NAV. Furthermore, the Fund may not be able to execute cash transactions for creation and redemption purposes at the same price used to determine the Fund’s NAV. To the extent that the maximum additional charge for creation or redemption transactions is insufficient to cover the execution shortfall, the Fund’s performance could be negatively impacted.
Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid-ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.
Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant.
Trading. Although Shares are listed on a national securities exchange, such as The Nasdaq Stock Market, LLC (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that an active trading market for the Shares will develop or be maintained or that the Shares will trade with any volume, or at all, on any stock exchange. This risk may be greater for the Fund as it seeks to have exposure to a single underlying stock as opposed to a more diverse portfolio like a traditional pooled investment. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares. Shares trade on the Exchange at a market price that may be below, at or above the Fund’s NAV. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged. In the event of an unscheduled market close for options contracts that reference a single stock, such as the Underlying Asset’s securities being halted or a market wide closure, settlement prices will be determined by the procedures of the listing exchange of the options contracts. As a result, the Fund could be adversely affected and be unable to implement its investment strategies in the event of an unscheduled closing.
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| GraniteShares Autocallable MSFT ETF | High Portfolio Turnover Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | High Portfolio Turnover Risk. The Fund may actively and frequently trade all or a significant portion of the Fund’s holdings. A high portfolio turnover rate increases transaction costs, which may increase the Fund’s expenses. Frequent trading may also cause adverse tax consequences for investors in the Fund due to an increase in short-term capital gains.
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| GraniteShares Autocallable MSFT ETF | Inflation Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the present value of the Fund’s assets and distributions, if any, may decline.
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| GraniteShares Autocallable MSFT ETF | Liquidity Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Liquidity Risk. Some securities held by the Fund, including options contracts, may be difficult to sell or be illiquid, particularly during times of market turmoil. This risk is greater for the Fund as it will hold options contracts on a single security, and not a broader range of options contracts. Markets for securities or financial instruments could be disrupted by a number of events, including, but not limited to, an economic crisis, natural disasters, epidemics/pandemics, new legislation or regulatory changes inside or outside the United States. Illiquid securities may be difficult to value, especially in changing or volatile markets. If the Fund is forced to sell an illiquid security at an unfavorable time or price, the Fund may be adversely impacted. Certain market conditions or restrictions, such as market rules related to short sales, may prevent the Fund from limiting losses, realizing gains or achieving a high correlation with the Underlying Asset. There is no assurance that a security that is deemed liquid when purchased will continue to be liquid. Market illiquidity may cause losses for the Fund.
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| GraniteShares Autocallable MSFT ETF | Management Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Management Risk. The Fund is subject to management risk because it is an actively managed portfolio. In managing the Fund’s investment portfolio, the portfolio managers will apply investment techniques and risk analyses that may not produce the desired result. There can be no guarantee that the Fund will meet its investment objective.
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| GraniteShares Autocallable MSFT ETF | Money Market Instrument Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Repurchase agreements are contracts in which a seller of securities agrees to buy the securities back at a specified time and price. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments, including money market funds, may lose money through fees or other means.
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| GraniteShares Autocallable MSFT ETF | New Fund Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | New Fund Risk. The Fund is a recently organized management investment company with no operating history. As a result, prospective investors do not have a track record or history on which to base their investment decisions.
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| GraniteShares Autocallable MSFT ETF | Non-Diversification Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Non-Diversification Risk. Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer or a smaller number of issuers than if it was a diversified fund. As a result, a decline in the value of an investment in a single issuer or a smaller number of issuers could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio.
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| GraniteShares Autocallable MSFT ETF | Operational Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Operational Risk. The Fund is subject to risks arising from various operational factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund relies on third-parties for a range of services, including custody. Any delay or failure relating to engaging or maintaining such service providers may affect the Fund’s ability to meet its investment objective. Although the Fund and the Adviser seek to reduce these operational risks through controls and procedures, there is no way to completely protect against such risks.
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| GraniteShares Autocallable MSFT ETF | Recent Market Events Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Recent Market Events Risk. U.S. and international markets have experienced significant periods of volatility in recent years due to a number of economic, political and global macro factors, including uncertainty regarding interest rates and inflation, rising government debt in the U.S. and elsewhere, political events, changes in trade policy and armed conflict. Public health emergencies, such as the COVID-19 pandemic, have in the past caused, and may in the future cause, disruptions to business operations and supply chains, reduced consumer demand and significant market volatility. Armed conflict, including the conflict between Russia and Ukraine and conflicts in the Middle East, has caused, and could continue to cause, loss of life and severe adverse effects on regional and global economies and on the markets for certain securities and commodities. The U.S., the European Union and other countries have imposed, and may impose additional, sanctions and other restrictive measures on certain countries, individuals and companies, which could adversely affect the issuers, markets and economies concerned. In addition, the U.S. has imposed, and may continue to impose, tariffs and other trade barriers, and other countries have imposed or may impose retaliatory measures. Trade disputes between the U.S. and other countries could result in additional tariffs, trade barriers and/or investment restrictions. These and other events could adversely affect the Fund’s performance, and their duration and full effects cannot be predicted.
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| GraniteShares Autocallable MSFT ETF | Single Issuer Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Single Issuer Risk. Issuer-specific attributes may cause an investment in the Fund to be more volatile than a traditional pooled investment vehicle which diversifies risk or the market generally. The value of the Fund, which focuses on an individual security (the Underlying Asset), may be more volatile than a traditional pooled investment or the market as a whole and may perform differently from the value of a traditional pooled investment or the market as a whole.
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| GraniteShares Autocallable MSFT ETF | Tax Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Tax Risk. The Fund intends to elect and to qualify each year to be treated as a RIC under Subchapter M of the Code. As a RIC, the Fund will not be subject to U.S. federal income tax on the portion of its net investment income and net capital gain that it distributes to Shareholders, provided that it satisfies certain requirements of the Code. If the Fund does not qualify as a RIC for any taxable year and certain relief provisions are not available, the Fund’s taxable income will be subject to tax at the Fund level and to a further tax at the shareholder level when such income is distributed. To comply with the asset diversification test applicable to a RIC, the Fund will attempt to ensure that the value of the derivatives it holds never exceed 25% of the total value of Fund assets at the close of any quarter. If the Fund’s investments in the derivatives were to exceed 25% of the Fund’s total assets at the end of a tax quarter, the Fund, generally, has a grace period to cure such lack of compliance. If the Fund fails to timely cure, it may no longer be eligible to be treated as a RIC. In addition, distributions received by the Fund from the Underlying Asset may generate “bad income” that could prevent the Fund from meeting the “Income Requirement” of Subchapter M of the Code, which may cause the Fund to fail to qualify as a RIC. The Fund intends to treat any income it may derive from the options and swap contracts as “qualifying income” under the provisions of the Code applicable to RICs. If the income is not qualifying income the Fund may lose its status as a RIC. The Fund will, for each year, distribute substantially all of its net investment income and net capital gains.
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| GraniteShares Autocallable MSFT ETF | Investing In U.S. Equities Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Investing in U.S. Equities Risk. Investing in U.S. issuers subjects the Fund to legal, regulatory, political, currency, security, and economic risks that are specific to the U.S. Certain changes in the U.S., such as a weakening of the U.S. economy or a decline in its financial markets, may have an adverse effect on U.S. issuers.
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| GraniteShares Autocallable MSFT ETF | Affiliated Etfs Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Affiliated ETFs Risk. The Fund may invest in equity securities of other ETFs for which the Adviser serves as investment adviser. It is possible that a conflict of interest may arise. Additionally, to the extent the Fund invests in the securities of another affiliated ETF, the Fund will be subject to the investment risks of the ETF. Shareholders of the Fund are subject to duplicative expenses to the extent of the Fund’s investment in any affiliated ETF. Finally, the shares of the ETFs in which the Fund may invest will be listed on a national securities exchange and the Fund will purchase or sell these shares on the secondary market at its current market price, which may be more or less than its net asset value per share.
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| GraniteShares Autocallable MSFT ETF | Box Spread E T F Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Box Spread ETF Risk. The Fund may invest in LBOX, an affiliated ETF advised by GraniteShares Advisors LLC, the Fund’s investment adviser, that employs a market-neutral box spread strategy to generate short-term, fixed-income-like returns. Box spread positions involve simultaneous long and short synthetic options positions on the same reference asset and are structured to capture an implied financing rate. While box spreads are designed to be market-neutral and to generate a return approximating prevailing short-term interest rates, they are subject to execution risk, counterparty risk with respect to the options positions, and the risk that the implied financing rate embedded in the box spread diverges from prevailing market rates in periods of market stress. The Fund’s investments in LBOX are made pursuant to Section 12(d)(1)(G) of the 1940 Act, which imposes no percentage-of-assets limits on the Fund’s investment in an exchange-traded fund. Accordingly, the Fund could, at any time, hold a material allocation in LBOX. The Fund’s adviser faces a conflict of interest in allocating Fund assets to an affiliated fund such as LBOX; see “Affiliated ETFs Risk.”
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| GraniteShares Autocallable MSFT ETF | U.S. Government And U.S. Agency Obligations Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | U.S. Government and U.S. Agency Obligations Risk. The Fund may invest in securities issued by the U.S. government or its agencies or instrumentalities. U.S. Government obligations include securities issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, such as the U.S. Treasury. Payment of principal and interest on U.S. Government obligations may be backed by the full faith and credit of the United States or may be backed solely by the issuing or guaranteeing agency or instrumentality itself. In the latter case, the investor must look principally to the agency or instrumentality issuing or guaranteeing the obligation for ultimate repayment, which agency or instrumentality may be privately owned. There can be no assurance that the U.S. Government would provide financial support to its agencies or instrumentalities (including government-sponsored enterprises) where it is not obligated to do so.
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| GraniteShares Autocallable MSFT ETF | Fixed Income Securities Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Fixed Income Securities Risk. The market value of Fixed Income Securities will change in response to interest rate changes and other factors, such as changes in the effective maturities and credit ratings of fixed income investments. During periods of falling interest rates, the values of outstanding Fixed Income Securities and related financial instruments generally rise. Conversely, during periods of rising interest rates, the values of such securities and related financial instruments generally decline. Fixed Income Securities are also subject to credit risk.
Investments in Fixed Income Securities may also involve the following risks, depending on the instrument involved:
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| GraniteShares Autocallable MSTR ETF | |||||||||||||||||||
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| Risk [Text Block] | PRINCIPAL RISKS OF INVESTING IN THE FUND
The principal risks of investing in the Fund are summarized below. As with any investment, there is a risk that you could lose all or a portion of your investment in the Fund. Each risk summarized below is considered a “principal risk” of investing in the Fund, regardless of the order in which it appears. Some or all of these risks may adversely affect the Fund’s net asset value per share (“NAV”), trading price, yield, total return and/or ability to meet its investment objectives. For more information about the risks of investing in the Fund, see the section in the Fund’s Prospectus titled “Additional Information About the Fund — Principal Risks of Investing in the Fund.”
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| GraniteShares Autocallable MSTR ETF | Underlying Asset Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Underlying Asset Risk. The performance of the Underlying Asset, and consequently the Fund’s performance, is subject to the risks of the software and information technology industry. The Underlying Asset is subject to many risks that can negatively impact its revenue and viability including, but are not limited to price volatility risk, management risk, inflation risk, global economic risk, growth risk, supply and demand risk, operations risk, regulatory risk, environmental risk, terrorism risk and the risk of natural disasters. The Underlying Asset performance may be affected by global markets and demand for its products and services, its ability to develop new products and services, inventory levels, supply chain issues, the performance of third-party software developers, system and network failures, privacy and cybersecurity breaches and changes in international and government regulations. Information technology companies are heavily dependent on patent and intellectual property rights, the loss or impairment of which may adversely affect profitability. Additionally, companies in the information technology industry may face dramatic and often unpredictable changes in growth rates and competition for the services of qualified personnel. The Fund’s daily returns may be affected by many factors but will depend on the performance and volatility of the Underlying Asset.
Bitcoin Risk: The performance of the Underlying Asset, and consequently the Fund’s performance, is subject to risks associated with bitcoin. Investing in bitcoin exposes to significant risks that are not typically present in other investments. These risks include the uncertainty surrounding new technology, limited evaluation due to bitcoin’s short trading history, and the potential decline in adoption and value over the long term. The extreme volatility of bitcoin’s price is also a risk factor. Regulatory uncertainties, such as potential government interventions and conflicting regulations across jurisdictions, can impact the demand for bitcoin and restrict its usage. Bitcoin is not presently widely accepted as a medium of exchange, which may be due to a number of common impediments and/or disadvantages to adopting the Bitcoin Network as a payment network, including the slowness of transaction processing and finality, variability of transaction fees, and volatility of the price of bitcoin. Additionally, risks associated with the sale of newly mined bitcoin, bitcoin trading platforms, competition from alternative digital assets, mining operations, network modifications, and intellectual property claims pose further challenges to bitcoin-linked investments. The value of bitcoin has been, may continue to be, substantially dependent on speculation, such that trading and investing in these assets generally may not be based on fundamental analysis. The Fund’s daily returns may be affected by many factors but will depend on the performance and volatility of the Underlying Asset.
Bitcoin Halving. While bitcoin prices have historically increased around halving events (a process designed to control the overall supply and reduce the risk of inflation in bitcoin, which uses a proof-of-work consensus algorithm and results in the mining reward being cut in half) there is no guarantee that the price change will be favorable or would compensate for the reduction in mining rewards. If a corresponding and proportionate increase in the price of Bitcoin does not follow future halving events, the revenue RIOT earns from its bitcoin mining operations would see a decrease, which could have a material adverse effect on RIOT’s results of operations and financial condition.
Hash Rate and Difficulty. As demand for bitcoin has increased, the global network hash rate (i.e., the aggregate amount of computing power devoted to supporting the bitcoin blockchain at a given time) has increased rapidly, and as greater adoption of bitcoin occurs, it is expected that demand for new bitcoin will likewise increase as more mining companies are drawn into the industry by this increased demand. Further, as a greater number of increasingly powerful miners have been deployed, the network difficulty for bitcoin has consequently also increased. A high difficulty means that more computing power will be required in order to solve a block and earn a new bitcoin reward, which, in turn, makes the bitcoin network more secure by limiting the possibility of one miner or mining pool gaining control of the network. Therefore, as new and existing miners deploy additional hash rate, the global network hash rate will continue to increase, meaning a miner’s share of the global network hash rate (and therefore its chance of earning bitcoin rewards) will decline if it fails to deploy additional hash rate at pace with the industry. If an effort to grow the hash rate, results in the inability to complete planned expansions on schedule and within anticipated cost estimates, deployment of newly purchased miners may be delayed, which could affect its competitiveness and results of operation, which could have a material adverse effect on the Underlying Asset’s financial condition and market price for its securities.
Blockchain Risk: Blockchain companies may be adversely impacted by government regulations or economic conditions. Blockchain technology is new and its uses are in many cases untested or unclear. These companies may also have significant exposure to fluctuations in the spot prices of digital assets, particularly to the extent that demand for a company’s hardware or services may increase as the spot price of digital assets increase. Blockchain companies typically face intense competition and potentially rapid product obsolescence. In addition, many Blockchain companies store sensitive consumer information and could be the target of cybersecurity attacks and other types of theft, which could have a negative impact on these companies. Access to a given blockchain may require a specific cryptographic key (in effect a string of characters granting unique access to initiate transactions related to specific digital assets) or set of keys, the theft, loss, or destruction of which, either by accident or as a result of the efforts of a third party, could irrevocably impair a claim to the digital assets stored on that blockchain. Many Blockchain companies currently operate under less regulatory scrutiny than traditional financial services companies and banks, but there is significant risk that regulatory oversight could increase in the future. Higher levels of regulation could increase costs and adversely impact the current business models of some Blockchain companies. For example, restrictions imposed by foreign governments, including China, on the use and mining of digital assets, may adversely impact Blockchain Companies and in turn the Fund. These companies could be negatively impacted by disruptions in service caused by hardware or software failure, or by interruptions or delays in service by third-party data center hosting facilities and maintenance providers. Blockchain companies involved in digital assets may face slow adoption rates and be subject to higher levels of regulatory scrutiny in the future, which could severely impact the viability of these companies. Blockchain companies, especially smaller companies, tend to be more volatile than companies that do not rely heavily on technology. The customers and/or suppliers of Blockchain companies may be concentrated in a particular country, region or industry. Any adverse event affecting one of these countries, regions or industries could have a negative impact on Blockchain companies.
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| GraniteShares Autocallable MSTR ETF | Derivatives Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Derivatives Risk. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds, interest rates or indexes. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other ordinary investments, including risk related to the market, imperfect correlation with underlying investments, higher price volatility, lack of availability, counterparty risk, liquidity, valuation and legal restrictions. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. The use of derivatives may result in larger losses or smaller gains than directly investing in securities. When the Fund uses derivatives, there may be an imperfect correlation between the value of the Underlying Asset and the derivative, which may prevent the Fund from achieving its investment objectives. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of those amounts initially invested. In addition, the Fund’s investments in derivatives are subject to the following risks:
Options Contracts. The use of options contracts involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which are affected by fiscal and monetary policies and by national and international political, changes in the actual or implied volatility or the reference asset, the time remaining until the expiration of the option contract and economic events. For the Fund, in particular, the value of the options contracts in which it invests is substantially influenced by the value of the Underlying Asset. Selling put options exposes the Fund to the risk of potential loss if the market value of the Underlying Asset falls below the strike price before the option expires. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to such date, the value of an option generally does not increase or decrease at the same rate at the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the underlying instrument, and there may at times not be a liquid secondary market for certain options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. Additionally, the Fund’s practice of “rolling” may cause the Fund to experience losses if the expiring contracts do not generate proceeds enough to cover the costs of entering into new options contracts. Rolling refers to the practice of closing out one options position and opening another with a different expiration date and/or a different strike price. Further, if an option is exercised, the seller (writer) of a put option is obligated to purchase the underlying asset at the strike price, which can result in significant financial and regulatory obligations for the Fund if the market value of the asset has fallen substantially. Furthermore, when the Fund seeks to trade out of puts, especially near expiration, there is an added risk that the Fund may be required to allocate resources unexpectedly to fulfill these obligations. This potential exposure to physical settlement can significantly impact the Fund’s liquidity and market exposure, particularly in volatile market conditions.
Swap Risk: Swaps are subject to tracking risk because they may not be perfect substitutes for the instruments they are intended to hedge or replace. Over the counter swaps are subject to counterparty default. Leverage inherent in derivatives will tend to magnify the Fund’s losses. The swap agreements may reference standardized exchange-traded, FLEX, European Style or American Style put options contracts that are based on the values of the price returns of the Underlying Asset. that generate specific risks.
Counterparty Risk. Counterparty risk is the risk that a counterparty to a financial instrument held by the Fund or by a special purpose or structured vehicle invested in by the Fund may become insolvent or otherwise fail to perform its obligations, and the Fund may obtain no or limited recovery of its investment, and any recovery may be significantly delayed.
Over-the-Counter Market Risk. Securities and options traded in over-the-counter markets may trade less frequently and in limited volumes and thus exhibit more volatility and liquidity risk, and the prices paid by the Fund in over-the-counter transactions may include an undisclosed dealer markup. The Fund is also exposed to default by the over-the-counter option writer who may be unwilling or unable to perform its contractual obligations to the Fund.
In addition, a counterparty (the other party to a transaction or an agreement or the party with whom the Fund executes transactions) to a transaction (including repurchase transaction) with the Fund may be unable or unwilling to make timely principal, interest or settlement payments, or otherwise honor its obligations.
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| GraniteShares Autocallable MSTR ETF | Autocallable Structure Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Autocallable Structure Risk. The Fund’s returns are correlated to the performance of a theoretical portfolio of autocallables. Autocallables have specific structural features that may be unfamiliar to many investors:
Contingent Income Risk. Coupon payments from autocallables are not guaranteed and will not be made if the Underlying Asset falls below the Coupon Barrier on observation dates. This means the Fund may generate significantly less income than anticipated during market downturns. The expected absence of future coupon payments over the term of an autocallable could materially affect its value.
Early Redemption Risk. Autocallables may be called before their scheduled maturity if the Underlying Asset reaches or exceeds the Autocallable Barrier on observation dates. This automatic early redemption could force reinvestment of that portion of the portfolio at lower rates if market yields have declined.
Barrier Risk. If the Underlying Asset falls below the Maturity Barrier at the maturity of an autocallable, that portion of the portfolio will be fully exposed to the negative performance of the Underlying Asset from its initial level. For example, if the Underlying Asset has declined 45% at maturity of a particular autocallable, the portfolio allocated to that autocallable would lose 45% of its value. This conditional protection creates a binary outcome that can result in sudden, significant losses if barriers are breached.
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| GraniteShares Autocallable MSTR ETF | Calculation Methodology Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Calculation Methodology Risk. Autocallables rely on complex calculation methodologies that may not perform as expected under certain market conditions.
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| GraniteShares Autocallable MSTR ETF | Distribution Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective, the Fund seeks to provide current monthly income. There is no assurance that the Fund will make a distribution in any given month. If the Fund makes distributions, the amounts of such distributions will likely vary greatly from one distribution to the next. Additionally, the monthly distributions, if any, may consist of returns of capital, which would decrease the Fund’s NAV and trading price over time. As a result, an investor may suffer significant losses to their investment.
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| GraniteShares Autocallable MSTR ETF | NAV Erosion Risk Due to Distributions [Member] | |||||||||||||||||||
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| GraniteShares Autocallable MSTR ETF | Option Market Liquidity Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Option Market Liquidity Risk. Liquidity risk exists when particular investments are difficult to purchase or sell. The Fund’s investments in illiquid investments may reduce the returns of the Fund because it may be unable to sell the illiquid investments at an advantageous time or price.
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| GraniteShares Autocallable MSTR ETF | Laddered Portfolio Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Laddered Portfolio Risk. A laddered portfolio strategy may not perform as expected if market conditions remain unfavorable over an extended period, multiple autocallable instruments may experience losses simultaneously and/or the reallocation across autocallable instruments may result in suboptimal entry points during rapidly changing markets. A portfolio of autocallables providing exposure to the same Underlying Asset may not be homogeneously affected by a change in that Underlying Asset price as the impact of such change may depend on the tenor of each autocallable. Depending on market conditions, requests to create and/or redeem shares in the Fund may result in the average tenor of the portfolio of autocallables held by the Fund to deviate from the average tenor the Fund intends to achieve.
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| GraniteShares Autocallable MSTR ETF | Concentration Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Concentration Risk. To the extent that the Underlying Asset concentrates its investments in a particular industry, the Fund will be subject to the risks associated with that industry.
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| GraniteShares Autocallable MSTR ETF | ETF Risks [Member] | |||||||||||||||||||
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| Risk [Text Block] | ETF Risks.
Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that are authorized to purchase and redeem Shares directly from the Fund (known as “Authorized Participants” or “APs”). There are a limited number of financial institutions that post collateral for certain trades on an agency basis (i.e. on behalf of other market participants). In such circumstances, the Fund’s market price may be significantly different than its underlying net asset value. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services; or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
Cash Redemption Risk. The Fund currently expects to effect a significant portion of its creations and redemptions for cash, rather than in-kind securities. Paying redemption proceeds in cash rather than through in-kind delivery of portfolio securities may require the Fund to dispose of or sell portfolio securities or other assets at an inopportune time to obtain the cash needed to meet redemption orders. This may cause the Fund to sell a security and recognize a capital gain or loss that might not have been incurred if it had made a redemption in-kind. As a result, the Fund may pay out higher or lower annual capital gains distributions than ETFs that redeem in-kind. The use of cash creations and redemptions may also cause the Fund’s Shares to trade in the market at greater bid-ask spreads or greater premiums or discounts to the Fund’s NAV. Furthermore, the Fund may not be able to execute cash transactions for creation and redemption purposes at the same price used to determine the Fund’s NAV. To the extent that the maximum additional charge for creation or redemption transactions is insufficient to cover the execution shortfall, the Fund’s performance could be negatively impacted.
Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid-ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.
Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant.
Trading. Although Shares are listed on a national securities exchange, such as The Nasdaq Stock Market, LLC (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that an active trading market for the Shares will develop or be maintained or that the Shares will trade with any volume, or at all, on any stock exchange. This risk may be greater for the Fund as it seeks to have exposure to a single underlying stock as opposed to a more diverse portfolio like a traditional pooled investment. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares. Shares trade on the Exchange at a market price that may be below, at or above the Fund’s NAV. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged. In the event of an unscheduled market close for options contracts that reference a single stock, such as the Underlying Asset’s securities being halted or a market wide closure, settlement prices will be determined by the procedures of the listing exchange of the options contracts. As a result, the Fund could be adversely affected and be unable to implement its investment strategies in the event of an unscheduled closing.
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| GraniteShares Autocallable MSTR ETF | High Portfolio Turnover Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | High Portfolio Turnover Risk. The Fund may actively and frequently trade all or a significant portion of the Fund’s holdings. A high portfolio turnover rate increases transaction costs, which may increase the Fund’s expenses. Frequent trading may also cause adverse tax consequences for investors in the Fund due to an increase in short-term capital gains.
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| GraniteShares Autocallable MSTR ETF | Inflation Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the present value of the Fund’s assets and distributions, if any, may decline.
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| GraniteShares Autocallable MSTR ETF | Liquidity Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Liquidity Risk. Some securities held by the Fund, including options contracts, may be difficult to sell or be illiquid, particularly during times of market turmoil. This risk is greater for the Fund as it will hold options contracts on a single security, and not a broader range of options contracts. Markets for securities or financial instruments could be disrupted by a number of events, including, but not limited to, an economic crisis, natural disasters, epidemics/pandemics, new legislation or regulatory changes inside or outside the United States. Illiquid securities may be difficult to value, especially in changing or volatile markets. If the Fund is forced to sell an illiquid security at an unfavorable time or price, the Fund may be adversely impacted. Certain market conditions or restrictions, such as market rules related to short sales, may prevent the Fund from limiting losses, realizing gains or achieving a high correlation with the Underlying Asset. There is no assurance that a security that is deemed liquid when purchased will continue to be liquid. Market illiquidity may cause losses for the Fund.
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| GraniteShares Autocallable MSTR ETF | Management Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Management Risk. The Fund is subject to management risk because it is an actively managed portfolio. In managing the Fund’s investment portfolio, the portfolio managers will apply investment techniques and risk analyses that may not produce the desired result. There can be no guarantee that the Fund will meet its investment objective.
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| GraniteShares Autocallable MSTR ETF | Money Market Instrument Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Repurchase agreements are contracts in which a seller of securities agrees to buy the securities back at a specified time and price. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments, including money market funds, may lose money through fees or other means.
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| GraniteShares Autocallable MSTR ETF | New Fund Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | New Fund Risk. The Fund is a recently organized management investment company with limited operating history. As a result, prospective investors do not have a track record or history on which to base their investment decisions.
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| GraniteShares Autocallable MSTR ETF | Non-Diversification Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Non-Diversification Risk. Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer or a smaller number of issuers than if it was a diversified fund. As a result, a decline in the value of an investment in a single issuer or a smaller number of issuers could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio.
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| GraniteShares Autocallable MSTR ETF | Operational Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Operational Risk. The Fund is subject to risks arising from various operational factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund relies on third-parties for a range of services, including custody. Any delay or failure relating to engaging or maintaining such service providers may affect the Fund’s ability to meet its investment objective. Although the Fund and the Adviser seek to reduce these operational risks through controls and procedures, there is no way to completely protect against such risks.
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| GraniteShares Autocallable MSTR ETF | Recent Market Events Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Recent Market Events Risk. U.S. and international markets have experienced significant periods of volatility in recent years due to a number of economic, political and global macro factors, including uncertainty regarding interest rates and inflation, rising government debt in the U.S. and elsewhere, political events, changes in trade policy and armed conflict. Public health emergencies, such as the COVID-19 pandemic, have in the past caused, and may in the future cause, disruptions to business operations and supply chains, reduced consumer demand and significant market volatility. Armed conflict, including the conflict between Russia and Ukraine and conflicts in the Middle East, has caused, and could continue to cause, loss of life and severe adverse effects on regional and global economies and on the markets for certain securities and commodities. The U.S., the European Union and other countries have imposed, and may impose additional, sanctions and other restrictive measures on certain countries, individuals and companies, which could adversely affect the issuers, markets and economies concerned. In addition, the U.S. has imposed, and may continue to impose, tariffs and other trade barriers, and other countries have imposed or may impose retaliatory measures. Trade disputes between the U.S. and other countries could result in additional tariffs, trade barriers and/or investment restrictions. These and other events could adversely affect the Fund’s performance, and their duration and full effects cannot be predicted.
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| GraniteShares Autocallable MSTR ETF | Single Issuer Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Single Issuer Risk. Issuer-specific attributes may cause an investment in the Fund to be more volatile than a traditional pooled investment vehicle which diversifies risk or the market generally. The value of the Fund, which focuses on an individual security (the Underlying Asset), may be more volatile than a traditional pooled investment or the market as a whole and may perform differently from the value of a traditional pooled investment or the market as a whole.
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| GraniteShares Autocallable MSTR ETF | Tax Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Tax Risk. The Fund intends to elect and to qualify each year to be treated as a RIC under Subchapter M of the Code. As a RIC, the Fund will not be subject to U.S. federal income tax on the portion of its net investment income and net capital gain that it distributes to Shareholders, provided that it satisfies certain requirements of the Code. If the Fund does not qualify as a RIC for any taxable year and certain relief provisions are not available, the Fund’s taxable income will be subject to tax at the Fund level and to a further tax at the shareholder level when such income is distributed. To comply with the asset diversification test applicable to a RIC, the Fund will attempt to ensure that the value of the derivatives it holds never exceed 25% of the total value of Fund assets at the close of any quarter. If the Fund’s investments in the derivatives were to exceed 25% of the Fund’s total assets at the end of a tax quarter, the Fund, generally, has a grace period to cure such lack of compliance. If the Fund fails to timely cure, it may no longer be eligible to be treated as a RIC. In addition, distributions received by the Fund from the Underlying Asset may generate “bad income” that could prevent the Fund from meeting the “Income Requirement” of Subchapter M of the Code, which may cause the Fund to fail to qualify as a RIC. The Fund intends to treat any income it may derive from the options and swap contracts as “qualifying income” under the provisions of the Code applicable to RICs. If the income is not qualifying income the Fund may lose its status as a RIC. The Fund will, for each year, distribute substantially all of its net investment income and net capital gains.
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| GraniteShares Autocallable MSTR ETF | Investing In U.S. Equities Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Investing in U.S. Equities Risk. Investing in U.S. issuers subjects the Fund to legal, regulatory, political, currency, security, and economic risks that are specific to the U.S. Certain changes in the U.S., such as a weakening of the U.S. economy or a decline in its financial markets, may have an adverse effect on U.S. issuers.
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| GraniteShares Autocallable MSTR ETF | Affiliated Etfs Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Affiliated ETFs Risk. The Fund may invest in equity securities of other ETFs for which the Adviser serves as investment adviser. It is possible that a conflict of interest may arise. Additionally, to the extent the Fund invests in the securities of another affiliated ETF, the Fund will be subject to the investment risks of the ETF. Shareholders of the Fund are subject to duplicative expenses to the extent of the Fund’s investment in any affiliated ETF. Finally, the shares of the ETFs in which the Fund may invest will be listed on a national securities exchange and the Fund will purchase or sell these shares on the secondary market at its current market price, which may be more or less than its net asset value per share.
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| GraniteShares Autocallable MSTR ETF | Box Spread E T F Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Box Spread ETF Risk. The Fund may invest in LBOX, an affiliated ETF advised by GraniteShares Advisors LLC, the Fund’s investment adviser, that employs a market-neutral box spread strategy to generate short-term, fixed-income-like returns. Box spread positions involve simultaneous long and short synthetic options positions on the same reference asset and are structured to capture an implied financing rate. While box spreads are designed to be market-neutral and to generate a return approximating prevailing short-term interest rates, they are subject to execution risk, counterparty risk with respect to the options positions, and the risk that the implied financing rate embedded in the box spread diverges from prevailing market rates in periods of market stress. The Fund’s investments in LBOX are made pursuant to Section 12(d)(1)(G) of the 1940 Act, which imposes no percentage-of-assets limits on the Fund’s investment in an exchange-traded fund. Accordingly, the Fund could, at any time, hold a material allocation in LBOX. The Fund’s adviser faces a conflict of interest in allocating Fund assets to an affiliated fund such as LBOX; see “Affiliated ETFs Risk.”
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| GraniteShares Autocallable MSTR ETF | U.S. Government And U.S. Agency Obligations Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | U.S. Government and U.S. Agency Obligations Risk. The Fund may invest in securities issued by the U.S. government or its agencies or instrumentalities. U.S. Government obligations include securities issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, such as the U.S. Treasury. Payment of principal and interest on U.S. Government obligations may be backed by the full faith and credit of the United States or may be backed solely by the issuing or guaranteeing agency or instrumentality itself. In the latter case, the investor must look principally to the agency or instrumentality issuing or guaranteeing the obligation for ultimate repayment, which agency or instrumentality may be privately owned. There can be no assurance that the U.S. Government would provide financial support to its agencies or instrumentalities (including government-sponsored enterprises) where it is not obligated to do so.
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| GraniteShares Autocallable MSTR ETF | Fixed Income Securities Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Fixed Income Securities Risk. The market value of Fixed Income Securities will change in response to interest rate changes and other factors, such as changes in the effective maturities and credit ratings of fixed income investments. During periods of falling interest rates, the values of outstanding Fixed Income Securities and related financial instruments generally rise. Conversely, during periods of rising interest rates, the values of such securities and related financial instruments generally decline. Fixed Income Securities are also subject to credit risk.
Investments in Fixed Income Securities may also involve the following risks, depending on the instrument involved:
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| GraniteShares Autocallable NBIS ETF | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | PRINCIPAL RISKS OF INVESTING IN THE FUND
The principal risks of investing in the Fund are summarized below. As with any investment, there is a risk that you could lose all or a portion of your investment in the Fund. Each risk summarized below is considered a “principal risk” of investing in the Fund, regardless of the order in which it appears. Some or all of these risks may adversely affect the Fund’s net asset value per share (“NAV”), trading price, yield, total return and/or ability to meet its investment objectives. For more information about the risks of investing in the Fund, see the section in the Fund’s Prospectus titled “Additional Information About the Fund — Principal Risks of Investing in the Fund.”
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| GraniteShares Autocallable NBIS ETF | Underlying Asset Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Underlying Asset Risk. The performance of the Underlying Asset, and consequently the Fund’s performance, is subject to the risks of the computer software industry. The Underlying Asset is subject to many risks that can negatively impact its revenue and viability including, but are not limited to price volatility risk, management risk, inflation risk, global economic risk, growth risk, supply and demand risk, operations risk, regulatory risk, environmental risk, terrorism risk and the risk of natural disasters. The Underlying Asset performance may be affected by competition in the microprocessor market, reliance on third-party manufacturers, the company’s ability to new develop new products, losses of significant customers, changes in customer demand for its products, risks associated with defective products political, legal and economic risks affecting the company’s global operations. The Fund’s daily returns may be affected by many factors but will depend on the performance and volatility of the Underlying Asset.
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| GraniteShares Autocallable NBIS ETF | Derivatives Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Derivatives Risk. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds, interest rates or indexes. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other ordinary investments, including risk related to the market, imperfect correlation with underlying investments, higher price volatility, lack of availability, counterparty risk, liquidity, valuation and legal restrictions. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. The use of derivatives may result in larger losses or smaller gains than directly investing in securities. When the Fund uses derivatives, there may be an imperfect correlation between the value of the Underlying Asset and the derivative, which may prevent the Fund from achieving its investment objectives. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of those amounts initially invested. In addition, the Fund’s investments in derivatives are subject to the following risks:
Options Contracts. The use of options contracts involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which are affected by fiscal and monetary policies and by national and international political, changes in the actual or implied volatility or the reference asset, the time remaining until the expiration of the option contract and economic events. For the Fund, in particular, the value of the options contracts in which it invests is substantially influenced by the value of the Underlying Asset. Selling put options exposes the Fund to the risk of potential loss if the market value of the Underlying Asset falls below the strike price before the option expires. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to such date, the value of an option generally does not increase or decrease at the same rate at the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the underlying instrument, and there may at times not be a liquid secondary market for certain options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. Additionally, the Fund’s practice of “rolling” may cause the Fund to experience losses if the expiring contracts do not generate proceeds enough to cover the costs of entering into new options contracts. Rolling refers to the practice of closing out one options position and opening another with a different expiration date and/or a different strike price. Further, if an option is exercised, the seller (writer) of a put option is obligated to purchase the underlying asset at the strike price, which can result in significant financial and regulatory obligations for the Fund if the market value of the asset has fallen substantially. Furthermore, when the Fund seeks to trade out of puts, especially near expiration, there is an added risk that the Fund may be required to allocate resources unexpectedly to fulfill these obligations. This potential exposure to physical settlement can significantly impact the Fund’s liquidity and market exposure, particularly in volatile market conditions.
Swap Risk: Swaps are subject to tracking risk because they may not be perfect substitutes for the instruments they are intended to hedge or replace. Over the counter swaps are subject to counterparty default. Leverage inherent in derivatives will tend to magnify the Fund’s losses. The swap agreements may reference standardized exchange-traded, FLEX, European Style or American Style put options contracts that are based on the values of the price returns of the Underlying Asset. that generate specific risks.
Counterparty Risk. Counterparty risk is the risk that a counterparty to a financial instrument held by the Fund or by a special purpose or structured vehicle invested in by the Fund may become insolvent or otherwise fail to perform its obligations, and the Fund may obtain no or limited recovery of its investment, and any recovery may be significantly delayed.
Over-the-Counter Market Risk. Securities and options traded in over-the-counter markets may trade less frequently and in limited volumes and thus exhibit more volatility and liquidity risk, and the prices paid by the Fund in over-the-counter transactions may include an undisclosed dealer markup. The Fund is also exposed to default by the over-the-counter option writer who may be unwilling or unable to perform its contractual obligations to the Fund.
In addition, a counterparty (the other party to a transaction or an agreement or the party with whom the Fund executes transactions) to a transaction (including repurchase transaction) with the Fund may be unable or unwilling to make timely principal, interest or settlement payments, or otherwise honor its obligations.
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| GraniteShares Autocallable NBIS ETF | Autocallable Structure Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Autocallable Structure Risk. The Fund’s returns are correlated to the performance of a theoretical portfolio of autocallables. Autocallables have specific structural features that may be unfamiliar to many investors:
Contingent Income Risk. Coupon payments from autocallables are not guaranteed and will not be made if the Underlying Asset falls below the Coupon Barrier on observation dates. This means the Fund may generate significantly less income than anticipated during market downturns. The expected absence of future coupon payments over the term of an autocallable could materially affect its value.
Early Redemption Risk. Autocallables may be called before their scheduled maturity if the Underlying Asset reaches or exceeds the Autocallable Barrier on observation dates. This automatic early redemption could force reinvestment of that portion of the portfolio at lower rates if market yields have declined.
Barrier Risk. If the Underlying Asset falls below the Maturity Barrier at the maturity of an autocallable, that portion of the portfolio will be fully exposed to the negative performance of the Underlying Asset from its initial level. For example, if the Underlying Asset has declined 45% at maturity of a particular autocallable, the portfolio allocated to that autocallable would lose 45% of its value. This conditional protection creates a binary outcome that can result in sudden, significant losses if barriers are breached.
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| GraniteShares Autocallable NBIS ETF | Calculation Methodology Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Calculation Methodology Risk. Autocallables rely on complex calculation methodologies that may not perform as expected under certain market conditions.
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| GraniteShares Autocallable NBIS ETF | Distribution Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective, the Fund seeks to provide current monthly income. There is no assurance that the Fund will make a distribution in any given month. If the Fund makes distributions, the amounts of such distributions will likely vary greatly from one distribution to the next. Additionally, the monthly distributions, if any, may consist of returns of capital, which would decrease the Fund’s NAV and trading price over time. As a result, an investor may suffer significant losses to their investment.
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| GraniteShares Autocallable NBIS ETF | NAV Erosion Risk Due to Distributions [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] |
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| GraniteShares Autocallable NBIS ETF | Option Market Liquidity Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Option Market Liquidity Risk. Liquidity risk exists when particular investments are difficult to purchase or sell. The Fund’s investments in illiquid investments may reduce the returns of the Fund because it may be unable to sell the illiquid investments at an advantageous time or price.
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| GraniteShares Autocallable NBIS ETF | Laddered Portfolio Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Laddered Portfolio Risk. A laddered portfolio strategy may not perform as expected if market conditions remain unfavorable over an extended period, multiple autocallable instruments may experience losses simultaneously and/or the reallocation across autocallable instruments may result in suboptimal entry points during rapidly changing markets. A portfolio of autocallables providing exposure to the same Underlying Asset may not be homogeneously affected by a change in that Underlying Asset price as the impact of such change may depend on the tenor of each autocallable. Depending on market conditions, requests to create and/or redeem shares in the Fund may result in the average tenor of the portfolio of autocallables held by the Fund to deviate from the average tenor the Fund intends to achieve.
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| GraniteShares Autocallable NBIS ETF | Concentration Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Concentration Risk. To the extent that the Underlying Asset concentrates its investments in a particular industry, the Fund will be subject to the risks associated with that industry.
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| GraniteShares Autocallable NBIS ETF | ETF Risks [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | ETF Risks.
Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that are authorized to purchase and redeem Shares directly from the Fund (known as “Authorized Participants” or “APs”). There are a limited number of financial institutions that post collateral for certain trades on an agency basis (i.e. on behalf of other market participants). In such circumstances, the Fund’s market price may be significantly different than its underlying net asset value. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services; or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
Cash Redemption Risk. The Fund currently expects to effect a significant portion of its creations and redemptions for cash, rather than in-kind securities. Paying redemption proceeds in cash rather than through in-kind delivery of portfolio securities may require the Fund to dispose of or sell portfolio securities or other assets at an inopportune time to obtain the cash needed to meet redemption orders. This may cause the Fund to sell a security and recognize a capital gain or loss that might not have been incurred if it had made a redemption in-kind. As a result, the Fund may pay out higher or lower annual capital gains distributions than ETFs that redeem in-kind. The use of cash creations and redemptions may also cause the Fund’s Shares to trade in the market at greater bid-ask spreads or greater premiums or discounts to the Fund’s NAV. Furthermore, the Fund may not be able to execute cash transactions for creation and redemption purposes at the same price used to determine the Fund’s NAV. To the extent that the maximum additional charge for creation or redemption transactions is insufficient to cover the execution shortfall, the Fund’s performance could be negatively impacted.
Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid-ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.
Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant.
Trading. Although Shares are listed on a national securities exchange, such as The Nasdaq Stock Market, LLC (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that an active trading market for the Shares will develop or be maintained or that the Shares will trade with any volume, or at all, on any stock exchange. This risk may be greater for the Fund as it seeks to have exposure to a single underlying stock as opposed to a more diverse portfolio like a traditional pooled investment. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares. Shares trade on the Exchange at a market price that may be below, at or above the Fund’s NAV. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged. In the event of an unscheduled market close for options contracts that reference a single stock, such as the Underlying Asset’s securities being halted or a market wide closure, settlement prices will be determined by the procedures of the listing exchange of the options contracts. As a result, the Fund could be adversely affected and be unable to implement its investment strategies in the event of an unscheduled closing.
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| GraniteShares Autocallable NBIS ETF | High Portfolio Turnover Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | High Portfolio Turnover Risk. The Fund may actively and frequently trade all or a significant portion of the Fund’s holdings. A high portfolio turnover rate increases transaction costs, which may increase the Fund’s expenses. Frequent trading may also cause adverse tax consequences for investors in the Fund due to an increase in short-term capital gains.
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| GraniteShares Autocallable NBIS ETF | Inflation Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the present value of the Fund’s assets and distributions, if any, may decline.
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| GraniteShares Autocallable NBIS ETF | Liquidity Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Liquidity Risk. Some securities held by the Fund, including options contracts, may be difficult to sell or be illiquid, particularly during times of market turmoil. This risk is greater for the Fund as it will hold options contracts on a single security, and not a broader range of options contracts. Markets for securities or financial instruments could be disrupted by a number of events, including, but not limited to, an economic crisis, natural disasters, epidemics/pandemics, new legislation or regulatory changes inside or outside the United States. Illiquid securities may be difficult to value, especially in changing or volatile markets. If the Fund is forced to sell an illiquid security at an unfavorable time or price, the Fund may be adversely impacted. Certain market conditions or restrictions, such as market rules related to short sales, may prevent the Fund from limiting losses, realizing gains or achieving a high correlation with the Underlying Asset. There is no assurance that a security that is deemed liquid when purchased will continue to be liquid. Market illiquidity may cause losses for the Fund.
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| GraniteShares Autocallable NBIS ETF | Management Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Management Risk. The Fund is subject to management risk because it is an actively managed portfolio. In managing the Fund’s investment portfolio, the portfolio managers will apply investment techniques and risk analyses that may not produce the desired result. There can be no guarantee that the Fund will meet its investment objective.
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| GraniteShares Autocallable NBIS ETF | Money Market Instrument Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Repurchase agreements are contracts in which a seller of securities agrees to buy the securities back at a specified time and price. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments, including money market funds, may lose money through fees or other means.
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| GraniteShares Autocallable NBIS ETF | New Fund Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | New Fund Risk. The Fund is a recently organized management investment company with no operating history. As a result, prospective investors do not have a track record or history on which to base their investment decisions.
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| GraniteShares Autocallable NBIS ETF | Non-Diversification Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Non-Diversification Risk. Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer or a smaller number of issuers than if it was a diversified fund. As a result, a decline in the value of an investment in a single issuer or a smaller number of issuers could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio.
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| GraniteShares Autocallable NBIS ETF | Operational Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Operational Risk. The Fund is subject to risks arising from various operational factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund relies on third-parties for a range of services, including custody. Any delay or failure relating to engaging or maintaining such service providers may affect the Fund’s ability to meet its investment objective. Although the Fund and the Adviser seek to reduce these operational risks through controls and procedures, there is no way to completely protect against such risks.
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| GraniteShares Autocallable NBIS ETF | Recent Market Events Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Recent Market Events Risk. U.S. and international markets have experienced significant periods of volatility in recent years due to a number of economic, political and global macro factors, including uncertainty regarding interest rates and inflation, rising government debt in the U.S. and elsewhere, political events, changes in trade policy and armed conflict. Public health emergencies, such as the COVID-19 pandemic, have in the past caused, and may in the future cause, disruptions to business operations and supply chains, reduced consumer demand and significant market volatility. Armed conflict, including the conflict between Russia and Ukraine and conflicts in the Middle East, has caused, and could continue to cause, loss of life and severe adverse effects on regional and global economies and on the markets for certain securities and commodities. The U.S., the European Union and other countries have imposed, and may impose additional, sanctions and other restrictive measures on certain countries, individuals and companies, which could adversely affect the issuers, markets and economies concerned. In addition, the U.S. has imposed, and may continue to impose, tariffs and other trade barriers, and other countries have imposed or may impose retaliatory measures. Trade disputes between the U.S. and other countries could result in additional tariffs, trade barriers and/or investment restrictions. These and other events could adversely affect the Fund’s performance, and their duration and full effects cannot be predicted.
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| GraniteShares Autocallable NBIS ETF | Single Issuer Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Single Issuer Risk. Issuer-specific attributes may cause an investment in the Fund to be more volatile than a traditional pooled investment vehicle which diversifies risk or the market generally. The value of the Fund, which focuses on an individual security (the Underlying Asset), may be more volatile than a traditional pooled investment or the market as a whole and may perform differently from the value of a traditional pooled investment or the market as a whole.
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| GraniteShares Autocallable NBIS ETF | Tax Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Tax Risk. The Fund intends to elect and to qualify each year to be treated as a RIC under Subchapter M of the Code. As a RIC, the Fund will not be subject to U.S. federal income tax on the portion of its net investment income and net capital gain that it distributes to Shareholders, provided that it satisfies certain requirements of the Code. If the Fund does not qualify as a RIC for any taxable year and certain relief provisions are not available, the Fund’s taxable income will be subject to tax at the Fund level and to a further tax at the shareholder level when such income is distributed. To comply with the asset diversification test applicable to a RIC, the Fund will attempt to ensure that the value of the derivatives it holds never exceed 25% of the total value of Fund assets at the close of any quarter. If the Fund’s investments in the derivatives were to exceed 25% of the Fund’s total assets at the end of a tax quarter, the Fund, generally, has a grace period to cure such lack of compliance. If the Fund fails to timely cure, it may no longer be eligible to be treated as a RIC. In addition, distributions received by the Fund from the Underlying Asset may generate “bad income” that could prevent the Fund from meeting the “Income Requirement” of Subchapter M of the Code, which may cause the Fund to fail to qualify as a RIC. The Fund intends to treat any income it may derive from the options and swap contracts as “qualifying income” under the provisions of the Code applicable to RICs. If the income is not qualifying income the Fund may lose its status as a RIC. The Fund will, for each year, distribute substantially all of its net investment income and net capital gains.
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| GraniteShares Autocallable NBIS ETF | Investing In U.S. Equities Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Investing in U.S. Equities Risk. Investing in U.S. issuers subjects the Fund to legal, regulatory, political, currency, security, and economic risks that are specific to the U.S. Certain changes in the U.S., such as a weakening of the U.S. economy or a decline in its financial markets, may have an adverse effect on U.S. issuers.
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| GraniteShares Autocallable NBIS ETF | Affiliated Etfs Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Affiliated ETFs Risk. The Fund may invest in equity securities of other ETFs for which the Adviser serves as investment adviser. It is possible that a conflict of interest may arise. Additionally, to the extent the Fund invests in the securities of another affiliated ETF, the Fund will be subject to the investment risks of the ETF. Shareholders of the Fund are subject to duplicative expenses to the extent of the Fund’s investment in any affiliated ETF. Finally, the shares of the ETFs in which the Fund may invest will be listed on a national securities exchange and the Fund will purchase or sell these shares on the secondary market at its current market price, which may be more or less than its net asset value per share.
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| GraniteShares Autocallable NBIS ETF | Box Spread E T F Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Box Spread ETF Risk. The Fund may invest in LBOX, an affiliated ETF advised by GraniteShares Advisors LLC, the Fund’s investment adviser, that employs a market-neutral box spread strategy to generate short-term, fixed-income-like returns. Box spread positions involve simultaneous long and short synthetic options positions on the same reference asset and are structured to capture an implied financing rate. While box spreads are designed to be market-neutral and to generate a return approximating prevailing short-term interest rates, they are subject to execution risk, counterparty risk with respect to the options positions, and the risk that the implied financing rate embedded in the box spread diverges from prevailing market rates in periods of market stress. The Fund’s investments in LBOX are made pursuant to Section 12(d)(1)(G) of the 1940 Act, which imposes no percentage-of-assets limits on the Fund’s investment in an exchange-traded fund. Accordingly, the Fund could, at any time, hold a material allocation in LBOX. The Fund’s adviser faces a conflict of interest in allocating Fund assets to an affiliated fund such as LBOX; see “Affiliated ETFs Risk.”
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| GraniteShares Autocallable NBIS ETF | U.S. Government And U.S. Agency Obligations Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | U.S. Government and U.S. Agency Obligations Risk. The Fund may invest in securities issued by the U.S. government or its agencies or instrumentalities. U.S. Government obligations include securities issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, such as the U.S. Treasury. Payment of principal and interest on U.S. Government obligations may be backed by the full faith and credit of the United States or may be backed solely by the issuing or guaranteeing agency or instrumentality itself. In the latter case, the investor must look principally to the agency or instrumentality issuing or guaranteeing the obligation for ultimate repayment, which agency or instrumentality may be privately owned. There can be no assurance that the U.S. Government would provide financial support to its agencies or instrumentalities (including government-sponsored enterprises) where it is not obligated to do so.
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| GraniteShares Autocallable NBIS ETF | Fixed Income Securities Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Fixed Income Securities Risk. The market value of Fixed Income Securities will change in response to interest rate changes and other factors, such as changes in the effective maturities and credit ratings of fixed income investments. During periods of falling interest rates, the values of outstanding Fixed Income Securities and related financial instruments generally rise. Conversely, during periods of rising interest rates, the values of such securities and related financial instruments generally decline. Fixed Income Securities are also subject to credit risk.
Investments in Fixed Income Securities may also involve the following risks, depending on the instrument involved:
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| GraniteShares Autocallable NFLX ETF | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | PRINCIPAL RISKS OF INVESTING IN THE FUND
The principal risks of investing in the Fund are summarized below. As with any investment, there is a risk that you could lose all or a portion of your investment in the Fund. Each risk summarized below is considered a “principal risk” of investing in the Fund, regardless of the order in which it appears. Some or all of these risks may adversely affect the Fund’s net asset value per share (“NAV”), trading price, yield, total return and/or ability to meet its investment objectives. For more information about the risks of investing in the Fund, see the section in the Fund’s Prospectus titled “Additional Information About the Fund — Principal Risks of Investing in the Fund.”
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| GraniteShares Autocallable NFLX ETF | Underlying Asset Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Underlying Asset Risk. The performance of the Underlying Asset, and consequently the Fund’s performance, is subject to the risks of the software and information technology as well as the entertainment industries.
The software and information technology industry is particularly vulnerable to rapid changes in technology product cycles, rapid product obsolescence, government regulation, and competition, both domestically and internationally, including competition from competitors with lower production costs. In addition, many information technology companies have limited product lines, markets, financial resources or personnel. The prices of information technology companies and companies that rely heavily on technology, especially those of smaller, less-seasoned companies, tend to be more volatile and less liquid than the overall market. Information technology companies are heavily dependent on patent and intellectual property rights, the loss or impairment of which may adversely affect profitability. Additionally, companies in the information technology industry may face dramatic and often unpredictable changes in growth rates and competition for the services of qualified personnel.
The entertainment industry is highly competitive and relies on consumer spending and the availability of disposable income for success. The prices of the securities of companies in the entertainment industry may fluctuate widely due to competitive pressures, heavy expenses incurred for research and development of products, problems related to bringing products to market, consumer preferences and rapid obsolescence of products. Legislative or regulatory changes and increased government supervision also may affect companies in the entertainment industry. The Fund’s daily returns may be affected by many factors but will depend on the performance and volatility of the Underlying Asset.
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| GraniteShares Autocallable NFLX ETF | Derivatives Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Derivatives Risk. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds, interest rates or indexes. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other ordinary investments, including risk related to the market, imperfect correlation with underlying investments, higher price volatility, lack of availability, counterparty risk, liquidity, valuation and legal restrictions. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. The use of derivatives may result in larger losses or smaller gains than directly investing in securities. When the Fund uses derivatives, there may be an imperfect correlation between the value of the Underlying Asset and the derivative, which may prevent the Fund from achieving its investment objectives. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of those amounts initially invested. In addition, the Fund’s investments in derivatives are subject to the following risks:
Options Contracts. The use of options contracts involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which are affected by fiscal and monetary policies and by national and international political, changes in the actual or implied volatility or the reference asset, the time remaining until the expiration of the option contract and economic events. For the Fund, in particular, the value of the options contracts in which it invests is substantially influenced by the value of the Underlying Asset. Selling put options exposes the Fund to the risk of potential loss if the market value of the Underlying Asset falls below the strike price before the option expires. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to such date, the value of an option generally does not increase or decrease at the same rate at the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the underlying instrument, and there may at times not be a liquid secondary market for certain options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. Additionally, the Fund’s practice of “rolling” may cause the Fund to experience losses if the expiring contracts do not generate proceeds enough to cover the costs of entering into new options contracts. Rolling refers to the practice of closing out one options position and opening another with a different expiration date and/or a different strike price. Further, if an option is exercised, the seller (writer) of a put option is obligated to purchase the underlying asset at the strike price, which can result in significant financial and regulatory obligations for the Fund if the market value of the asset has fallen substantially. Furthermore, when the Fund seeks to trade out of puts, especially near expiration, there is an added risk that the Fund may be required to allocate resources unexpectedly to fulfill these obligations. This potential exposure to physical settlement can significantly impact the Fund’s liquidity and market exposure, particularly in volatile market conditions.
Swap Risk: Swaps are subject to tracking risk because they may not be perfect substitutes for the instruments they are intended to hedge or replace. Over the counter swaps are subject to counterparty default. Leverage inherent in derivatives will tend to magnify the Fund’s losses. The swap agreements may reference standardized exchange-traded, FLEX, European Style or American Style put options contracts that are based on the values of the price returns of the Underlying Asset. that generate specific risks.
Counterparty Risk. Counterparty risk is the risk that a counterparty to a financial instrument held by the Fund or by a special purpose or structured vehicle invested in by the Fund may become insolvent or otherwise fail to perform its obligations, and the Fund may obtain no or limited recovery of its investment, and any recovery may be significantly delayed.
Over-the-Counter Market Risk. Securities and options traded in over-the-counter markets may trade less frequently and in limited volumes and thus exhibit more volatility and liquidity risk, and the prices paid by the Fund in over-the-counter transactions may include an undisclosed dealer markup. The Fund is also exposed to default by the over-the-counter option writer who may be unwilling or unable to perform its contractual obligations to the Fund.
In addition, a counterparty (the other party to a transaction or an agreement or the party with whom the Fund executes transactions) to a transaction (including repurchase transaction) with the Fund may be unable or unwilling to make timely principal, interest or settlement payments, or otherwise honor its obligations.
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| GraniteShares Autocallable NFLX ETF | Autocallable Structure Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Autocallable Structure Risk. The Fund’s returns are correlated to the performance of a theoretical portfolio of autocallables. Autocallables have specific structural features that may be unfamiliar to many investors:
Contingent Income Risk. Coupon payments from autocallables are not guaranteed and will not be made if the Underlying Asset falls below the Coupon Barrier on observation dates. This means the Fund may generate significantly less income than anticipated during market downturns. The expected absence of future coupon payments over the term of an autocallable could materially affect its value.
Early Redemption Risk. Autocallables may be called before their scheduled maturity if the Underlying Asset reaches or exceeds the Autocallable Barrier on observation dates. This automatic early redemption could force reinvestment of that portion of the portfolio at lower rates if market yields have declined.
Barrier Risk. If the Underlying Asset falls below the Maturity Barrier at the maturity of an autocallable, that portion of the portfolio will be fully exposed to the negative performance of the Underlying Asset from its initial level. For example, if the Underlying Asset has declined 45% at maturity of a particular autocallable, the portfolio allocated to that autocallable would lose 45% of its value. This conditional protection creates a binary outcome that can result in sudden, significant losses if barriers are breached.
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| GraniteShares Autocallable NFLX ETF | Calculation Methodology Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Calculation Methodology Risk. Autocallables rely on complex calculation methodologies that may not perform as expected under certain market conditions.
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| GraniteShares Autocallable NFLX ETF | Distribution Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective, the Fund seeks to provide current monthly income. There is no assurance that the Fund will make a distribution in any given month. If the Fund makes distributions, the amounts of such distributions will likely vary greatly from one distribution to the next. Additionally, the monthly distributions, if any, may consist of returns of capital, which would decrease the Fund’s NAV and trading price over time. As a result, an investor may suffer significant losses to their investment.
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| GraniteShares Autocallable NFLX ETF | NAV Erosion Risk Due to Distributions [Member] | |||||||||||||||||||
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| Risk [Text Block] |
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| GraniteShares Autocallable NFLX ETF | Option Market Liquidity Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Option Market Liquidity Risk. Liquidity risk exists when particular investments are difficult to purchase or sell. The Fund’s investments in illiquid investments may reduce the returns of the Fund because it may be unable to sell the illiquid investments at an advantageous time or price.
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| GraniteShares Autocallable NFLX ETF | Laddered Portfolio Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Laddered Portfolio Risk. A laddered portfolio strategy may not perform as expected if market conditions remain unfavorable over an extended period, multiple autocallable instruments may experience losses simultaneously and/or the reallocation across autocallable instruments may result in suboptimal entry points during rapidly changing markets. A portfolio of autocallables providing exposure to the same Underlying Asset may not be homogeneously affected by a change in that Underlying Asset price as the impact of such change may depend on the tenor of each autocallable. Depending on market conditions, requests to create and/or redeem shares in the Fund may result in the average tenor of the portfolio of autocallables held by the Fund to deviate from the average tenor the Fund intends to achieve.
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| GraniteShares Autocallable NFLX ETF | Concentration Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Concentration Risk. To the extent that the Underlying Asset concentrates its investments in a particular industry, the Fund will be subject to the risks associated with that industry.
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| GraniteShares Autocallable NFLX ETF | ETF Risks [Member] | |||||||||||||||||||
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| Risk [Text Block] | ETF Risks.
Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that are authorized to purchase and redeem Shares directly from the Fund (known as “Authorized Participants” or “APs”). There are a limited number of financial institutions that post collateral for certain trades on an agency basis (i.e. on behalf of other market participants). In such circumstances, the Fund’s market price may be significantly different than its underlying net asset value. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services; or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
Cash Redemption Risk. The Fund currently expects to effect a significant portion of its creations and redemptions for cash, rather than in-kind securities. Paying redemption proceeds in cash rather than through in-kind delivery of portfolio securities may require the Fund to dispose of or sell portfolio securities or other assets at an inopportune time to obtain the cash needed to meet redemption orders. This may cause the Fund to sell a security and recognize a capital gain or loss that might not have been incurred if it had made a redemption in-kind. As a result, the Fund may pay out higher or lower annual capital gains distributions than ETFs that redeem in-kind. The use of cash creations and redemptions may also cause the Fund’s Shares to trade in the market at greater bid-ask spreads or greater premiums or discounts to the Fund’s NAV. Furthermore, the Fund may not be able to execute cash transactions for creation and redemption purposes at the same price used to determine the Fund’s NAV. To the extent that the maximum additional charge for creation or redemption transactions is insufficient to cover the execution shortfall, the Fund’s performance could be negatively impacted.
Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid-ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.
Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant.
Trading. Although Shares are listed on a national securities exchange, such as The Nasdaq Stock Market, LLC (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that an active trading market for the Shares will develop or be maintained or that the Shares will trade with any volume, or at all, on any stock exchange. This risk may be greater for the Fund as it seeks to have exposure to a single underlying stock as opposed to a more diverse portfolio like a traditional pooled investment. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares. Shares trade on the Exchange at a market price that may be below, at or above the Fund’s NAV. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged. In the event of an unscheduled market close for options contracts that reference a single stock, such as the Underlying Asset’s securities being halted or a market wide closure, settlement prices will be determined by the procedures of the listing exchange of the options contracts. As a result, the Fund could be adversely affected and be unable to implement its investment strategies in the event of an unscheduled closing.
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| GraniteShares Autocallable NFLX ETF | High Portfolio Turnover Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | High Portfolio Turnover Risk. The Fund may actively and frequently trade all or a significant portion of the Fund’s holdings. A high portfolio turnover rate increases transaction costs, which may increase the Fund’s expenses. Frequent trading may also cause adverse tax consequences for investors in the Fund due to an increase in short-term capital gains.
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| GraniteShares Autocallable NFLX ETF | Inflation Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the present value of the Fund’s assets and distributions, if any, may decline.
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| GraniteShares Autocallable NFLX ETF | Liquidity Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Liquidity Risk. Some securities held by the Fund, including options contracts, may be difficult to sell or be illiquid, particularly during times of market turmoil. This risk is greater for the Fund as it will hold options contracts on a single security, and not a broader range of options contracts. Markets for securities or financial instruments could be disrupted by a number of events, including, but not limited to, an economic crisis, natural disasters, epidemics/pandemics, new legislation or regulatory changes inside or outside the United States. Illiquid securities may be difficult to value, especially in changing or volatile markets. If the Fund is forced to sell an illiquid security at an unfavorable time or price, the Fund may be adversely impacted. Certain market conditions or restrictions, such as market rules related to short sales, may prevent the Fund from limiting losses, realizing gains or achieving a high correlation with the Underlying Asset. There is no assurance that a security that is deemed liquid when purchased will continue to be liquid. Market illiquidity may cause losses for the Fund.
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| GraniteShares Autocallable NFLX ETF | Management Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Management Risk. The Fund is subject to management risk because it is an actively managed portfolio. In managing the Fund’s investment portfolio, the portfolio managers will apply investment techniques and risk analyses that may not produce the desired result. There can be no guarantee that the Fund will meet its investment objective.
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| GraniteShares Autocallable NFLX ETF | Money Market Instrument Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Repurchase agreements are contracts in which a seller of securities agrees to buy the securities back at a specified time and price. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments, including money market funds, may lose money through fees or other means.
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| GraniteShares Autocallable NFLX ETF | New Fund Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | New Fund Risk. The Fund is a recently organized management investment company with no operating history. As a result, prospective investors do not have a track record or history on which to base their investment decisions.
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| GraniteShares Autocallable NFLX ETF | Non-Diversification Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Non-Diversification Risk. Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer or a smaller number of issuers than if it was a diversified fund. As a result, a decline in the value of an investment in a single issuer or a smaller number of issuers could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio.
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| GraniteShares Autocallable NFLX ETF | Operational Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Operational Risk. The Fund is subject to risks arising from various operational factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund relies on third-parties for a range of services, including custody. Any delay or failure relating to engaging or maintaining such service providers may affect the Fund’s ability to meet its investment objective. Although the Fund and the Adviser seek to reduce these operational risks through controls and procedures, there is no way to completely protect against such risks.
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| GraniteShares Autocallable NFLX ETF | Recent Market Events Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Recent Market Events Risk. U.S. and international markets have experienced significant periods of volatility in recent years due to a number of economic, political and global macro factors, including uncertainty regarding interest rates and inflation, rising government debt in the U.S. and elsewhere, political events, changes in trade policy and armed conflict. Public health emergencies, such as the COVID-19 pandemic, have in the past caused, and may in the future cause, disruptions to business operations and supply chains, reduced consumer demand and significant market volatility. Armed conflict, including the conflict between Russia and Ukraine and conflicts in the Middle East, has caused, and could continue to cause, loss of life and severe adverse effects on regional and global economies and on the markets for certain securities and commodities. The U.S., the European Union and other countries have imposed, and may impose additional, sanctions and other restrictive measures on certain countries, individuals and companies, which could adversely affect the issuers, markets and economies concerned. In addition, the U.S. has imposed, and may continue to impose, tariffs and other trade barriers, and other countries have imposed or may impose retaliatory measures. Trade disputes between the U.S. and other countries could result in additional tariffs, trade barriers and/or investment restrictions. These and other events could adversely affect the Fund’s performance, and their duration and full effects cannot be predicted.
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| GraniteShares Autocallable NFLX ETF | Single Issuer Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Single Issuer Risk. Issuer-specific attributes may cause an investment in the Fund to be more volatile than a traditional pooled investment vehicle which diversifies risk or the market generally. The value of the Fund, which focuses on an individual security (the Underlying Asset), may be more volatile than a traditional pooled investment or the market as a whole and may perform differently from the value of a traditional pooled investment or the market as a whole.
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| GraniteShares Autocallable NFLX ETF | Tax Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Tax Risk. The Fund intends to elect and to qualify each year to be treated as a RIC under Subchapter M of the Code. As a RIC, the Fund will not be subject to U.S. federal income tax on the portion of its net investment income and net capital gain that it distributes to Shareholders, provided that it satisfies certain requirements of the Code. If the Fund does not qualify as a RIC for any taxable year and certain relief provisions are not available, the Fund’s taxable income will be subject to tax at the Fund level and to a further tax at the shareholder level when such income is distributed. To comply with the asset diversification test applicable to a RIC, the Fund will attempt to ensure that the value of the derivatives it holds never exceed 25% of the total value of Fund assets at the close of any quarter. If the Fund’s investments in the derivatives were to exceed 25% of the Fund’s total assets at the end of a tax quarter, the Fund, generally, has a grace period to cure such lack of compliance. If the Fund fails to timely cure, it may no longer be eligible to be treated as a RIC. In addition, distributions received by the Fund from the Underlying Asset may generate “bad income” that could prevent the Fund from meeting the “Income Requirement” of Subchapter M of the Code, which may cause the Fund to fail to qualify as a RIC. The Fund intends to treat any income it may derive from the options and swap contracts as “qualifying income” under the provisions of the Code applicable to RICs. If the income is not qualifying income the Fund may lose its status as a RIC. The Fund will, for each year, distribute substantially all of its net investment income and net capital gains.
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| GraniteShares Autocallable NFLX ETF | Investing In U.S. Equities Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Investing in U.S. Equities Risk. Investing in U.S. issuers subjects the Fund to legal, regulatory, political, currency, security, and economic risks that are specific to the U.S. Certain changes in the U.S., such as a weakening of the U.S. economy or a decline in its financial markets, may have an adverse effect on U.S. issuers.
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| GraniteShares Autocallable NFLX ETF | Affiliated Etfs Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Affiliated ETFs Risk. The Fund may invest in equity securities of other ETFs for which the Adviser serves as investment adviser. It is possible that a conflict of interest may arise. Additionally, to the extent the Fund invests in the securities of another affiliated ETF, the Fund will be subject to the investment risks of the ETF. Shareholders of the Fund are subject to duplicative expenses to the extent of the Fund’s investment in any affiliated ETF. Finally, the shares of the ETFs in which the Fund may invest will be listed on a national securities exchange and the Fund will purchase or sell these shares on the secondary market at its current market price, which may be more or less than its net asset value per share.
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| GraniteShares Autocallable NFLX ETF | Box Spread E T F Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Box Spread ETF Risk. The Fund may invest in LBOX, an affiliated ETF advised by GraniteShares Advisors LLC, the Fund’s investment adviser, that employs a market-neutral box spread strategy to generate short-term, fixed-income-like returns. Box spread positions involve simultaneous long and short synthetic options positions on the same reference asset and are structured to capture an implied financing rate. While box spreads are designed to be market-neutral and to generate a return approximating prevailing short-term interest rates, they are subject to execution risk, counterparty risk with respect to the options positions, and the risk that the implied financing rate embedded in the box spread diverges from prevailing market rates in periods of market stress. The Fund’s investments in LBOX are made pursuant to Section 12(d)(1)(G) of the 1940 Act, which imposes no percentage-of-assets limits on the Fund’s investment in an exchange-traded fund. Accordingly, the Fund could, at any time, hold a material allocation in LBOX. The Fund’s adviser faces a conflict of interest in allocating Fund assets to an affiliated fund such as LBOX; see “Affiliated ETFs Risk.”
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| GraniteShares Autocallable NFLX ETF | U.S. Government And U.S. Agency Obligations Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | U.S. Government and U.S. Agency Obligations Risk. The Fund may invest in securities issued by the U.S. government or its agencies or instrumentalities. U.S. Government obligations include securities issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, such as the U.S. Treasury. Payment of principal and interest on U.S. Government obligations may be backed by the full faith and credit of the United States or may be backed solely by the issuing or guaranteeing agency or instrumentality itself. In the latter case, the investor must look principally to the agency or instrumentality issuing or guaranteeing the obligation for ultimate repayment, which agency or instrumentality may be privately owned. There can be no assurance that the U.S. Government would provide financial support to its agencies or instrumentalities (including government-sponsored enterprises) where it is not obligated to do so.
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| GraniteShares Autocallable NFLX ETF | Fixed Income Securities Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Fixed Income Securities Risk. The market value of Fixed Income Securities will change in response to interest rate changes and other factors, such as changes in the effective maturities and credit ratings of fixed income investments. During periods of falling interest rates, the values of outstanding Fixed Income Securities and related financial instruments generally rise. Conversely, during periods of rising interest rates, the values of such securities and related financial instruments generally decline. Fixed Income Securities are also subject to credit risk.
Investments in Fixed Income Securities may also involve the following risks, depending on the instrument involved:
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| GraniteShares Autocallable NVDA ETF | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | PRINCIPAL RISKS OF INVESTING IN THE FUND
The principal risks of investing in the Fund are summarized below. As with any investment, there is a risk that you could lose all or a portion of your investment in the Fund. Each risk summarized below is considered a “principal risk” of investing in the Fund, regardless of the order in which it appears. Some or all of these risks may adversely affect the Fund’s net asset value per share (“NAV”), trading price, yield, total return and/or ability to meet its investment objectives. For more information about the risks of investing in the Fund, see the section in the Fund’s Prospectus titled “Additional Information About the Fund — Principal Risks of Investing in the Fund.”
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| GraniteShares Autocallable NVDA ETF | Underlying Asset Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Underlying Asset Risk. The performance of the Underlying Asset, and consequently the Fund’s performance, is subject to the risks of the semiconductor sector. The Underlying Asset is subject to many risks that can negatively impact its revenue and viability including, but are not limited to price volatility risk, management risk, inflation risk, global economic risk, growth risk, supply and demand risk, operations risk, regulatory risk, environmental risk, terrorism risk and the risk of natural disasters. The Underlying Asset performance may be affected by the Underlying Asset’s ability to identify new products, technologies or services, global competition and business conditions, its dependence on third-party product manufacturers, product defect issues, cybersecurity breaches, and customer concentration. The Underlying Asset may also be affected by risks that affect the broader technology sector, including: government regulation; dramatic and often unpredictable changes in growth rates and competition for qualified personnel; heavy dependence on patent and intellectual property rights, the loss or impairment of which may adversely affect profitability; and a small number of companies representing a large portion of the technology sector as a whole. The Fund’s daily returns may be affected by many factors but will depend on the performance and volatility of the Underlying Asset.
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| GraniteShares Autocallable NVDA ETF | Derivatives Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Derivatives Risk. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds, interest rates or indexes. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other ordinary investments, including risk related to the market, imperfect correlation with underlying investments, higher price volatility, lack of availability, counterparty risk, liquidity, valuation and legal restrictions. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. The use of derivatives may result in larger losses or smaller gains than directly investing in securities. When the Fund uses derivatives, there may be an imperfect correlation between the value of the Underlying Asset and the derivative, which may prevent the Fund from achieving its investment objectives. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of those amounts initially invested. In addition, the Fund’s investments in derivatives are subject to the following risks:
Options Contracts. The use of options contracts involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which are affected by fiscal and monetary policies and by national and international political, changes in the actual or implied volatility or the reference asset, the time remaining until the expiration of the option contract and economic events. For the Fund, in particular, the value of the options contracts in which it invests is substantially influenced by the value of the Underlying Asset. Selling put options exposes the Fund to the risk of potential loss if the market value of the Underlying Asset falls below the strike price before the option expires. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to such date, the value of an option generally does not increase or decrease at the same rate at the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the underlying instrument, and there may at times not be a liquid secondary market for certain options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. Additionally, the Fund’s practice of “rolling” may cause the Fund to experience losses if the expiring contracts do not generate proceeds enough to cover the costs of entering into new options contracts. Rolling refers to the practice of closing out one options position and opening another with a different expiration date and/or a different strike price. Further, if an option is exercised, the seller (writer) of a put option is obligated to purchase the underlying asset at the strike price, which can result in significant financial and regulatory obligations for the Fund if the market value of the asset has fallen substantially. Furthermore, when the Fund seeks to trade out of puts, especially near expiration, there is an added risk that the Fund may be required to allocate resources unexpectedly to fulfill these obligations. This potential exposure to physical settlement can significantly impact the Fund’s liquidity and market exposure, particularly in volatile market conditions.
Swap Risk: Swaps are subject to tracking risk because they may not be perfect substitutes for the instruments they are intended to hedge or replace. Over the counter swaps are subject to counterparty default. Leverage inherent in derivatives will tend to magnify the Fund’s losses. The swap agreements may reference standardized exchange-traded, FLEX, European Style or American Style put options contracts that are based on the values of the price returns of the Underlying Asset. that generate specific risks.
Counterparty Risk. Counterparty risk is the risk that a counterparty to a financial instrument held by the Fund or by a special purpose or structured vehicle invested in by the Fund may become insolvent or otherwise fail to perform its obligations, and the Fund may obtain no or limited recovery of its investment, and any recovery may be significantly delayed.
Over-the-Counter Market Risk. Securities and options traded in over-the-counter markets may trade less frequently and in limited volumes and thus exhibit more volatility and liquidity risk, and the prices paid by the Fund in over-the-counter transactions may include an undisclosed dealer markup. The Fund is also exposed to default by the over-the-counter option writer who may be unwilling or unable to perform its contractual obligations to the Fund.
In addition, a counterparty (the other party to a transaction or an agreement or the party with whom the Fund executes transactions) to a transaction (including repurchase transaction) with the Fund may be unable or unwilling to make timely principal, interest or settlement payments, or otherwise honor its obligations.
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| GraniteShares Autocallable NVDA ETF | Autocallable Structure Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Autocallable Structure Risk. The Fund’s returns are correlated to the performance of a theoretical portfolio of autocallables. Autocallables have specific structural features that may be unfamiliar to many investors:
Contingent Income Risk. Coupon payments from autocallables are not guaranteed and will not be made if the Underlying Asset falls below the Coupon Barrier on observation dates. This means the Fund may generate significantly less income than anticipated during market downturns. The expected absence of future coupon payments over the term of an autocallable could materially affect its value.
Early Redemption Risk. Autocallables may be called before their scheduled maturity if the Underlying Asset reaches or exceeds the Autocallable Barrier on observation dates. This automatic early redemption could force reinvestment of that portion of the portfolio at lower rates if market yields have declined.
Barrier Risk. If the Underlying Asset falls below the Maturity Barrier at the maturity of an autocallable, that portion of the portfolio will be fully exposed to the negative performance of the Underlying Asset from its initial level. For example, if the Underlying Asset has declined 45% at maturity of a particular autocallable, the portfolio allocated to that autocallable would lose 45% of its value. This conditional protection creates a binary outcome that can result in sudden, significant losses if barriers are breached.
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| GraniteShares Autocallable NVDA ETF | Calculation Methodology Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Calculation Methodology Risk. Autocallables rely on complex calculation methodologies that may not perform as expected under certain market conditions.
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| GraniteShares Autocallable NVDA ETF | Distribution Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective, the Fund seeks to provide current monthly income. There is no assurance that the Fund will make a distribution in any given month. If the Fund makes distributions, the amounts of such distributions will likely vary greatly from one distribution to the next. Additionally, the monthly distributions, if any, may consist of returns of capital, which would decrease the Fund’s NAV and trading price over time. As a result, an investor may suffer significant losses to their investment.
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| GraniteShares Autocallable NVDA ETF | NAV Erosion Risk Due to Distributions [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] |
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| GraniteShares Autocallable NVDA ETF | Option Market Liquidity Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Option Market Liquidity Risk. Liquidity risk exists when particular investments are difficult to purchase or sell. The Fund’s investments in illiquid investments may reduce the returns of the Fund because it may be unable to sell the illiquid investments at an advantageous time or price.
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| GraniteShares Autocallable NVDA ETF | Laddered Portfolio Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Laddered Portfolio Risk. A laddered portfolio strategy may not perform as expected if market conditions remain unfavorable over an extended period, multiple autocallable instruments may experience losses simultaneously and/or the reallocation across autocallable instruments may result in suboptimal entry points during rapidly changing markets. A portfolio of autocallables providing exposure to the same Underlying Asset may not be homogeneously affected by a change in that Underlying Asset price as the impact of such change may depend on the tenor of each autocallable. Depending on market conditions, requests to create and/or redeem shares in the Fund may result in the average tenor of the portfolio of autocallables held by the Fund to deviate from the average tenor the Fund intends to achieve.
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| GraniteShares Autocallable NVDA ETF | Concentration Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Concentration Risk. To the extent that the Underlying Asset concentrates its investments in a particular industry, the Fund will be subject to the risks associated with that industry.
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| GraniteShares Autocallable NVDA ETF | ETF Risks [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | ETF Risks.
Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that are authorized to purchase and redeem Shares directly from the Fund (known as “Authorized Participants” or “APs”). There are a limited number of financial institutions that post collateral for certain trades on an agency basis (i.e. on behalf of other market participants). In such circumstances, the Fund’s market price may be significantly different than its underlying net asset value. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services; or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
Cash Redemption Risk. The Fund currently expects to effect a significant portion of its creations and redemptions for cash, rather than in-kind securities. Paying redemption proceeds in cash rather than through in-kind delivery of portfolio securities may require the Fund to dispose of or sell portfolio securities or other assets at an inopportune time to obtain the cash needed to meet redemption orders. This may cause the Fund to sell a security and recognize a capital gain or loss that might not have been incurred if it had made a redemption in-kind. As a result, the Fund may pay out higher or lower annual capital gains distributions than ETFs that redeem in-kind. The use of cash creations and redemptions may also cause the Fund’s Shares to trade in the market at greater bid-ask spreads or greater premiums or discounts to the Fund’s NAV. Furthermore, the Fund may not be able to execute cash transactions for creation and redemption purposes at the same price used to determine the Fund’s NAV. To the extent that the maximum additional charge for creation or redemption transactions is insufficient to cover the execution shortfall, the Fund’s performance could be negatively impacted.
Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid-ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.
Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant.
Trading. Although Shares are listed on a national securities exchange, such as The Nasdaq Stock Market, LLC (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that an active trading market for the Shares will develop or be maintained or that the Shares will trade with any volume, or at all, on any stock exchange. This risk may be greater for the Fund as it seeks to have exposure to a single underlying stock as opposed to a more diverse portfolio like a traditional pooled investment. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares. Shares trade on the Exchange at a market price that may be below, at or above the Fund’s NAV. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged. In the event of an unscheduled market close for options contracts that reference a single stock, such as the Underlying Asset’s securities being halted or a market wide closure, settlement prices will be determined by the procedures of the listing exchange of the options contracts. As a result, the Fund could be adversely affected and be unable to implement its investment strategies in the event of an unscheduled closing.
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| GraniteShares Autocallable NVDA ETF | High Portfolio Turnover Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | High Portfolio Turnover Risk. The Fund may actively and frequently trade all or a significant portion of the Fund’s holdings. A high portfolio turnover rate increases transaction costs, which may increase the Fund’s expenses. Frequent trading may also cause adverse tax consequences for investors in the Fund due to an increase in short-term capital gains.
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| GraniteShares Autocallable NVDA ETF | Inflation Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the present value of the Fund’s assets and distributions, if any, may decline.
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| GraniteShares Autocallable NVDA ETF | Liquidity Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Liquidity Risk. Some securities held by the Fund, including options contracts, may be difficult to sell or be illiquid, particularly during times of market turmoil. This risk is greater for the Fund as it will hold options contracts on a single security, and not a broader range of options contracts. Markets for securities or financial instruments could be disrupted by a number of events, including, but not limited to, an economic crisis, natural disasters, epidemics/pandemics, new legislation or regulatory changes inside or outside the United States. Illiquid securities may be difficult to value, especially in changing or volatile markets. If the Fund is forced to sell an illiquid security at an unfavorable time or price, the Fund may be adversely impacted. Certain market conditions or restrictions, such as market rules related to short sales, may prevent the Fund from limiting losses, realizing gains or achieving a high correlation with the Underlying Asset. There is no assurance that a security that is deemed liquid when purchased will continue to be liquid. Market illiquidity may cause losses for the Fund.
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| GraniteShares Autocallable NVDA ETF | Management Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Management Risk. The Fund is subject to management risk because it is an actively managed portfolio. In managing the Fund’s investment portfolio, the portfolio managers will apply investment techniques and risk analyses that may not produce the desired result. There can be no guarantee that the Fund will meet its investment objective.
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| GraniteShares Autocallable NVDA ETF | Money Market Instrument Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Repurchase agreements are contracts in which a seller of securities agrees to buy the securities back at a specified time and price. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments, including money market funds, may lose money through fees or other means.
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| GraniteShares Autocallable NVDA ETF | New Fund Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | New Fund Risk. The Fund is a recently organized management investment company with limited operating history. As a result, prospective investors do not have a track record or history on which to base their investment decisions.
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| GraniteShares Autocallable NVDA ETF | Non-Diversification Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Non-Diversification Risk. Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer or a smaller number of issuers than if it was a diversified fund. As a result, a decline in the value of an investment in a single issuer or a smaller number of issuers could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio.
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| GraniteShares Autocallable NVDA ETF | Operational Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Operational Risk. The Fund is subject to risks arising from various operational factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund relies on third-parties for a range of services, including custody. Any delay or failure relating to engaging or maintaining such service providers may affect the Fund’s ability to meet its investment objective. Although the Fund and the Adviser seek to reduce these operational risks through controls and procedures, there is no way to completely protect against such risks.
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| GraniteShares Autocallable NVDA ETF | Recent Market Events Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Recent Market Events Risk. U.S. and international markets have experienced significant periods of volatility in recent years due to a number of economic, political and global macro factors, including uncertainty regarding interest rates and inflation, rising government debt in the U.S. and elsewhere, political events, changes in trade policy and armed conflict. Public health emergencies, such as the COVID-19 pandemic, have in the past caused, and may in the future cause, disruptions to business operations and supply chains, reduced consumer demand and significant market volatility. Armed conflict, including the conflict between Russia and Ukraine and conflicts in the Middle East, has caused, and could continue to cause, loss of life and severe adverse effects on regional and global economies and on the markets for certain securities and commodities. The U.S., the European Union and other countries have imposed, and may impose additional, sanctions and other restrictive measures on certain countries, individuals and companies, which could adversely affect the issuers, markets and economies concerned. In addition, the U.S. has imposed, and may continue to impose, tariffs and other trade barriers, and other countries have imposed or may impose retaliatory measures. Trade disputes between the U.S. and other countries could result in additional tariffs, trade barriers and/or investment restrictions. These and other events could adversely affect the Fund’s performance, and their duration and full effects cannot be predicted.
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| GraniteShares Autocallable NVDA ETF | Single Issuer Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Single Issuer Risk. Issuer-specific attributes may cause an investment in the Fund to be more volatile than a traditional pooled investment vehicle which diversifies risk or the market generally. The value of the Fund, which focuses on an individual security (the Underlying Asset), may be more volatile than a traditional pooled investment or the market as a whole and may perform differently from the value of a traditional pooled investment or the market as a whole.
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| GraniteShares Autocallable NVDA ETF | Tax Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Tax Risk. The Fund intends to elect and to qualify each year to be treated as a RIC under Subchapter M of the Code. As a RIC, the Fund will not be subject to U.S. federal income tax on the portion of its net investment income and net capital gain that it distributes to Shareholders, provided that it satisfies certain requirements of the Code. If the Fund does not qualify as a RIC for any taxable year and certain relief provisions are not available, the Fund’s taxable income will be subject to tax at the Fund level and to a further tax at the shareholder level when such income is distributed. To comply with the asset diversification test applicable to a RIC, the Fund will attempt to ensure that the value of the derivatives it holds never exceed 25% of the total value of Fund assets at the close of any quarter. If the Fund’s investments in the derivatives were to exceed 25% of the Fund’s total assets at the end of a tax quarter, the Fund, generally, has a grace period to cure such lack of compliance. If the Fund fails to timely cure, it may no longer be eligible to be treated as a RIC. In addition, distributions received by the Fund from the Underlying Asset may generate “bad income” that could prevent the Fund from meeting the “Income Requirement” of Subchapter M of the Code, which may cause the Fund to fail to qualify as a RIC. The Fund intends to treat any income it may derive from the options and swap contracts as “qualifying income” under the provisions of the Code applicable to RICs. If the income is not qualifying income the Fund may lose its status as a RIC. The Fund will, for each year, distribute substantially all of its net investment income and net capital gains.
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| GraniteShares Autocallable NVDA ETF | Investing In U.S. Equities Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Investing in U.S. Equities Risk. Investing in U.S. issuers subjects the Fund to legal, regulatory, political, currency, security, and economic risks that are specific to the U.S. Certain changes in the U.S., such as a weakening of the U.S. economy or a decline in its financial markets, may have an adverse effect on U.S. issuers.
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| GraniteShares Autocallable NVDA ETF | Affiliated Etfs Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Affiliated ETFs Risk. The Fund may invest in equity securities of other ETFs for which the Adviser serves as investment adviser. It is possible that a conflict of interest may arise. Additionally, to the extent the Fund invests in the securities of another affiliated ETF, the Fund will be subject to the investment risks of the ETF. Shareholders of the Fund are subject to duplicative expenses to the extent of the Fund’s investment in any affiliated ETF. Finally, the shares of the ETFs in which the Fund may invest will be listed on a national securities exchange and the Fund will purchase or sell these shares on the secondary market at its current market price, which may be more or less than its net asset value per share.
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| GraniteShares Autocallable NVDA ETF | Box Spread E T F Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Box Spread ETF Risk. The Fund may invest in LBOX, an affiliated ETF advised by GraniteShares Advisors LLC, the Fund’s investment adviser, that employs a market-neutral box spread strategy to generate short-term, fixed-income-like returns. Box spread positions involve simultaneous long and short synthetic options positions on the same reference asset and are structured to capture an implied financing rate. While box spreads are designed to be market-neutral and to generate a return approximating prevailing short-term interest rates, they are subject to execution risk, counterparty risk with respect to the options positions, and the risk that the implied financing rate embedded in the box spread diverges from prevailing market rates in periods of market stress. The Fund’s investments in LBOX are made pursuant to Section 12(d)(1)(G) of the 1940 Act, which imposes no percentage-of-assets limits on the Fund’s investment in an exchange-traded fund. Accordingly, the Fund could, at any time, hold a material allocation in LBOX. The Fund’s adviser faces a conflict of interest in allocating Fund assets to an affiliated fund such as LBOX; see “Affiliated ETFs Risk.”
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| GraniteShares Autocallable NVDA ETF | U.S. Government And U.S. Agency Obligations Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | U.S. Government and U.S. Agency Obligations Risk. The Fund may invest in securities issued by the U.S. government or its agencies or instrumentalities. U.S. Government obligations include securities issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, such as the U.S. Treasury. Payment of principal and interest on U.S. Government obligations may be backed by the full faith and credit of the United States or may be backed solely by the issuing or guaranteeing agency or instrumentality itself. In the latter case, the investor must look principally to the agency or instrumentality issuing or guaranteeing the obligation for ultimate repayment, which agency or instrumentality may be privately owned. There can be no assurance that the U.S. Government would provide financial support to its agencies or instrumentalities (including government-sponsored enterprises) where it is not obligated to do so.
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| GraniteShares Autocallable NVDA ETF | Fixed Income Securities Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Fixed Income Securities Risk. The market value of Fixed Income Securities will change in response to interest rate changes and other factors, such as changes in the effective maturities and credit ratings of fixed income investments. During periods of falling interest rates, the values of outstanding Fixed Income Securities and related financial instruments generally rise. Conversely, during periods of rising interest rates, the values of such securities and related financial instruments generally decline. Fixed Income Securities are also subject to credit risk.
Investments in Fixed Income Securities may also involve the following risks, depending on the instrument involved:
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| GraniteShares Autocallable ORCL ETF | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | PRINCIPAL RISKS OF INVESTING IN THE FUND
The principal risks of investing in the Fund are summarized below. As with any investment, there is a risk that you could lose all or a portion of your investment in the Fund. Each risk summarized below is considered a “principal risk” of investing in the Fund, regardless of the order in which it appears. Some or all of these risks may adversely affect the Fund’s net asset value per share (“NAV”), trading price, yield, total return and/or ability to meet its investment objectives. For more information about the risks of investing in the Fund, see the section in the Fund’s Prospectus titled “Additional Information About the Fund — Principal Risks of Investing in the Fund.”
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| GraniteShares Autocallable ORCL ETF | Underlying Asset Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Underlying Asset Risk. The performance of the Underlying Asset, and consequently the Fund’s performance, is subject to risks of the software industry. Companies in the software industry are subject to significant competitive pressures, such as aggressive pricing, new market entrants, competition for market share, short product cycles due to an accelerated rate of technological developments and the potential for limited earnings and/or falling profit margins. These companies also face the risks that new services, equipment or technologies will not be accepted by consumers and businesses or will become rapidly obsolete. These factors can affect the profitability of these companies and, as a result, the value of their securities. Also, patent protection is integral to the success of many companies in this industry, and profitability can be affected materially by, among other things, the cost of obtaining (or failing to obtain) patent approvals, the cost of litigating patent infringement and the loss of patent protection for products (which significantly increases pricing pressures and can materially reduce profitability with respect to such products). In addition, many software companies have limited operating histories. Prices of these companies’ securities historically have been more volatile than other securities, especially over the short term.
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| GraniteShares Autocallable ORCL ETF | Derivatives Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Derivatives Risk. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds, interest rates or indexes. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other ordinary investments, including risk related to the market, imperfect correlation with underlying investments, higher price volatility, lack of availability, counterparty risk, liquidity, valuation and legal restrictions. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. The use of derivatives may result in larger losses or smaller gains than directly investing in securities. When the Fund uses derivatives, there may be an imperfect correlation between the value of the Underlying Asset and the derivative, which may prevent the Fund from achieving its investment objectives. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of those amounts initially invested. In addition, the Fund’s investments in derivatives are subject to the following risks:
Options Contracts. The use of options contracts involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which are affected by fiscal and monetary policies and by national and international political, changes in the actual or implied volatility or the reference asset, the time remaining until the expiration of the option contract and economic events. For the Fund, in particular, the value of the options contracts in which it invests is substantially influenced by the value of the Underlying Asset. Selling put options exposes the Fund to the risk of potential loss if the market value of the Underlying Asset falls below the strike price before the option expires. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to such date, the value of an option generally does not increase or decrease at the same rate at the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the underlying instrument, and there may at times not be a liquid secondary market for certain options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. Additionally, the Fund’s practice of “rolling” may cause the Fund to experience losses if the expiring contracts do not generate proceeds enough to cover the costs of entering into new options contracts. Rolling refers to the practice of closing out one options position and opening another with a different expiration date and/or a different strike price. Further, if an option is exercised, the seller (writer) of a put option is obligated to purchase the underlying asset at the strike price, which can result in significant financial and regulatory obligations for the Fund if the market value of the asset has fallen substantially. Furthermore, when the Fund seeks to trade out of puts, especially near expiration, there is an added risk that the Fund may be required to allocate resources unexpectedly to fulfill these obligations. This potential exposure to physical settlement can significantly impact the Fund’s liquidity and market exposure, particularly in volatile market conditions.
Swap Risk: Swaps are subject to tracking risk because they may not be perfect substitutes for the instruments they are intended to hedge or replace. Over the counter swaps are subject to counterparty default. Leverage inherent in derivatives will tend to magnify the Fund’s losses. The swap agreements may reference standardized exchange-traded, FLEX, European Style or American Style put options contracts that are based on the values of the price returns of the Underlying Asset. that generate specific risks.
Counterparty Risk. Counterparty risk is the risk that a counterparty to a financial instrument held by the Fund or by a special purpose or structured vehicle invested in by the Fund may become insolvent or otherwise fail to perform its obligations, and the Fund may obtain no or limited recovery of its investment, and any recovery may be significantly delayed.
Over-the-Counter Market Risk. Securities and options traded in over-the-counter markets may trade less frequently and in limited volumes and thus exhibit more volatility and liquidity risk, and the prices paid by the Fund in over-the-counter transactions may include an undisclosed dealer markup. The Fund is also exposed to default by the over-the-counter option writer who may be unwilling or unable to perform its contractual obligations to the Fund.
In addition, a counterparty (the other party to a transaction or an agreement or the party with whom the Fund executes transactions) to a transaction (including repurchase transaction) with the Fund may be unable or unwilling to make timely principal, interest or settlement payments, or otherwise honor its obligations.
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| GraniteShares Autocallable ORCL ETF | Autocallable Structure Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Autocallable Structure Risk. The Fund’s returns are correlated to the performance of a theoretical portfolio of autocallables. Autocallables have specific structural features that may be unfamiliar to many investors:
Contingent Income Risk. Coupon payments from autocallables are not guaranteed and will not be made if the Underlying Asset falls below the Coupon Barrier on observation dates. This means the Fund may generate significantly less income than anticipated during market downturns. The expected absence of future coupon payments over the term of an autocallable could materially affect its value.
Early Redemption Risk. Autocallables may be called before their scheduled maturity if the Underlying Asset reaches or exceeds the Autocallable Barrier on observation dates. This automatic early redemption could force reinvestment of that portion of the portfolio at lower rates if market yields have declined.
Barrier Risk. If the Underlying Asset falls below the Maturity Barrier at the maturity of an autocallable, that portion of the portfolio will be fully exposed to the negative performance of the Underlying Asset from its initial level. For example, if the Underlying Asset has declined 45% at maturity of a particular autocallable, the portfolio allocated to that autocallable would lose 45% of its value. This conditional protection creates a binary outcome that can result in sudden, significant losses if barriers are breached.
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| GraniteShares Autocallable ORCL ETF | Calculation Methodology Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Calculation Methodology Risk. Autocallables rely on complex calculation methodologies that may not perform as expected under certain market conditions.
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| GraniteShares Autocallable ORCL ETF | Distribution Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective, the Fund seeks to provide current monthly income. There is no assurance that the Fund will make a distribution in any given month. If the Fund makes distributions, the amounts of such distributions will likely vary greatly from one distribution to the next. Additionally, the monthly distributions, if any, may consist of returns of capital, which would decrease the Fund’s NAV and trading price over time. As a result, an investor may suffer significant losses to their investment.
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| GraniteShares Autocallable ORCL ETF | NAV Erosion Risk Due to Distributions [Member] | |||||||||||||||||||
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| GraniteShares Autocallable ORCL ETF | Option Market Liquidity Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Option Market Liquidity Risk. Liquidity risk exists when particular investments are difficult to purchase or sell. The Fund’s investments in illiquid investments may reduce the returns of the Fund because it may be unable to sell the illiquid investments at an advantageous time or price.
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| GraniteShares Autocallable ORCL ETF | Laddered Portfolio Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Laddered Portfolio Risk. A laddered portfolio strategy may not perform as expected if market conditions remain unfavorable over an extended period, multiple autocallable instruments may experience losses simultaneously and/or the reallocation across autocallable instruments may result in suboptimal entry points during rapidly changing markets. A portfolio of autocallables providing exposure to the same Underlying Asset may not be homogeneously affected by a change in that Underlying Asset price as the impact of such change may depend on the tenor of each autocallable. Depending on market conditions, requests to create and/or redeem shares in the Fund may result in the average tenor of the portfolio of autocallables held by the Fund to deviate from the average tenor the Fund intends to achieve.
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| GraniteShares Autocallable ORCL ETF | Concentration Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Concentration Risk. To the extent that the Underlying Asset concentrates its investments in a particular industry, the Fund will be subject to the risks associated with that industry.
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| GraniteShares Autocallable ORCL ETF | ETF Risks [Member] | |||||||||||||||||||
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| Risk [Text Block] | ETF Risks.
Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that are authorized to purchase and redeem Shares directly from the Fund (known as “Authorized Participants” or “APs”). There are a limited number of financial institutions that post collateral for certain trades on an agency basis (i.e. on behalf of other market participants). In such circumstances, the Fund’s market price may be significantly different than its underlying net asset value. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services; or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
Cash Redemption Risk. The Fund currently expects to effect a significant portion of its creations and redemptions for cash, rather than in-kind securities. Paying redemption proceeds in cash rather than through in-kind delivery of portfolio securities may require the Fund to dispose of or sell portfolio securities or other assets at an inopportune time to obtain the cash needed to meet redemption orders. This may cause the Fund to sell a security and recognize a capital gain or loss that might not have been incurred if it had made a redemption in-kind. As a result, the Fund may pay out higher or lower annual capital gains distributions than ETFs that redeem in-kind. The use of cash creations and redemptions may also cause the Fund’s Shares to trade in the market at greater bid-ask spreads or greater premiums or discounts to the Fund’s NAV. Furthermore, the Fund may not be able to execute cash transactions for creation and redemption purposes at the same price used to determine the Fund’s NAV. To the extent that the maximum additional charge for creation or redemption transactions is insufficient to cover the execution shortfall, the Fund’s performance could be negatively impacted.
Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid-ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.
Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant.
Trading. Although Shares are listed on a national securities exchange, such as The Nasdaq Stock Market, LLC (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that an active trading market for the Shares will develop or be maintained or that the Shares will trade with any volume, or at all, on any stock exchange. This risk may be greater for the Fund as it seeks to have exposure to a single underlying stock as opposed to a more diverse portfolio like a traditional pooled investment. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares. Shares trade on the Exchange at a market price that may be below, at or above the Fund’s NAV. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged. In the event of an unscheduled market close for options contracts that reference a single stock, such as the Underlying Asset’s securities being halted or a market wide closure, settlement prices will be determined by the procedures of the listing exchange of the options contracts. As a result, the Fund could be adversely affected and be unable to implement its investment strategies in the event of an unscheduled closing.
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| GraniteShares Autocallable ORCL ETF | High Portfolio Turnover Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | High Portfolio Turnover Risk. The Fund may actively and frequently trade all or a significant portion of the Fund’s holdings. A high portfolio turnover rate increases transaction costs, which may increase the Fund’s expenses. Frequent trading may also cause adverse tax consequences for investors in the Fund due to an increase in short-term capital gains.
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| GraniteShares Autocallable ORCL ETF | Inflation Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the present value of the Fund’s assets and distributions, if any, may decline.
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| GraniteShares Autocallable ORCL ETF | Liquidity Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Liquidity Risk. Some securities held by the Fund, including options contracts, may be difficult to sell or be illiquid, particularly during times of market turmoil. This risk is greater for the Fund as it will hold options contracts on a single security, and not a broader range of options contracts. Markets for securities or financial instruments could be disrupted by a number of events, including, but not limited to, an economic crisis, natural disasters, epidemics/pandemics, new legislation or regulatory changes inside or outside the United States. Illiquid securities may be difficult to value, especially in changing or volatile markets. If the Fund is forced to sell an illiquid security at an unfavorable time or price, the Fund may be adversely impacted. Certain market conditions or restrictions, such as market rules related to short sales, may prevent the Fund from limiting losses, realizing gains or achieving a high correlation with the Underlying Asset. There is no assurance that a security that is deemed liquid when purchased will continue to be liquid. Market illiquidity may cause losses for the Fund.
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| GraniteShares Autocallable ORCL ETF | Management Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Management Risk. The Fund is subject to management risk because it is an actively managed portfolio. In managing the Fund’s investment portfolio, the portfolio managers will apply investment techniques and risk analyses that may not produce the desired result. There can be no guarantee that the Fund will meet its investment objective.
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| GraniteShares Autocallable ORCL ETF | Money Market Instrument Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Repurchase agreements are contracts in which a seller of securities agrees to buy the securities back at a specified time and price. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments, including money market funds, may lose money through fees or other means.
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| GraniteShares Autocallable ORCL ETF | New Fund Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | New Fund Risk. The Fund is a recently organized management investment company with no operating history. As a result, prospective investors do not have a track record or history on which to base their investment decisions.
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| GraniteShares Autocallable ORCL ETF | Non-Diversification Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Non-Diversification Risk. Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer or a smaller number of issuers than if it was a diversified fund. As a result, a decline in the value of an investment in a single issuer or a smaller number of issuers could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio.
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| GraniteShares Autocallable ORCL ETF | Operational Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Operational Risk. The Fund is subject to risks arising from various operational factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund relies on third-parties for a range of services, including custody. Any delay or failure relating to engaging or maintaining such service providers may affect the Fund’s ability to meet its investment objective. Although the Fund and the Adviser seek to reduce these operational risks through controls and procedures, there is no way to completely protect against such risks.
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| GraniteShares Autocallable ORCL ETF | Recent Market Events Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Recent Market Events Risk. U.S. and international markets have experienced significant periods of volatility in recent years due to a number of economic, political and global macro factors, including uncertainty regarding interest rates and inflation, rising government debt in the U.S. and elsewhere, political events, changes in trade policy and armed conflict. Public health emergencies, such as the COVID-19 pandemic, have in the past caused, and may in the future cause, disruptions to business operations and supply chains, reduced consumer demand and significant market volatility. Armed conflict, including the conflict between Russia and Ukraine and conflicts in the Middle East, has caused, and could continue to cause, loss of life and severe adverse effects on regional and global economies and on the markets for certain securities and commodities. The U.S., the European Union and other countries have imposed, and may impose additional, sanctions and other restrictive measures on certain countries, individuals and companies, which could adversely affect the issuers, markets and economies concerned. In addition, the U.S. has imposed, and may continue to impose, tariffs and other trade barriers, and other countries have imposed or may impose retaliatory measures. Trade disputes between the U.S. and other countries could result in additional tariffs, trade barriers and/or investment restrictions. These and other events could adversely affect the Fund’s performance, and their duration and full effects cannot be predicted.
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| GraniteShares Autocallable ORCL ETF | Single Issuer Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Single Issuer Risk. Issuer-specific attributes may cause an investment in the Fund to be more volatile than a traditional pooled investment vehicle which diversifies risk or the market generally. The value of the Fund, which focuses on an individual security (the Underlying Asset), may be more volatile than a traditional pooled investment or the market as a whole and may perform differently from the value of a traditional pooled investment or the market as a whole.
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| GraniteShares Autocallable ORCL ETF | Tax Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Tax Risk. The Fund intends to elect and to qualify each year to be treated as a RIC under Subchapter M of the Code. As a RIC, the Fund will not be subject to U.S. federal income tax on the portion of its net investment income and net capital gain that it distributes to Shareholders, provided that it satisfies certain requirements of the Code. If the Fund does not qualify as a RIC for any taxable year and certain relief provisions are not available, the Fund’s taxable income will be subject to tax at the Fund level and to a further tax at the shareholder level when such income is distributed. To comply with the asset diversification test applicable to a RIC, the Fund will attempt to ensure that the value of the derivatives it holds never exceed 25% of the total value of Fund assets at the close of any quarter. If the Fund’s investments in the derivatives were to exceed 25% of the Fund’s total assets at the end of a tax quarter, the Fund, generally, has a grace period to cure such lack of compliance. If the Fund fails to timely cure, it may no longer be eligible to be treated as a RIC. In addition, distributions received by the Fund from the Underlying Asset may generate “bad income” that could prevent the Fund from meeting the “Income Requirement” of Subchapter M of the Code, which may cause the Fund to fail to qualify as a RIC. The Fund intends to treat any income it may derive from the options and swap contracts as “qualifying income” under the provisions of the Code applicable to RICs. If the income is not qualifying income the Fund may lose its status as a RIC. The Fund will, for each year, distribute substantially all of its net investment income and net capital gains.
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| GraniteShares Autocallable ORCL ETF | Investing In U.S. Equities Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Investing in U.S. Equities Risk. Investing in U.S. issuers subjects the Fund to legal, regulatory, political, currency, security, and economic risks that are specific to the U.S. Certain changes in the U.S., such as a weakening of the U.S. economy or a decline in its financial markets, may have an adverse effect on U.S. issuers.
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| GraniteShares Autocallable ORCL ETF | Affiliated Etfs Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Affiliated ETFs Risk. The Fund may invest in equity securities of other ETFs for which the Adviser serves as investment adviser. It is possible that a conflict of interest may arise. Additionally, to the extent the Fund invests in the securities of another affiliated ETF, the Fund will be subject to the investment risks of the ETF. Shareholders of the Fund are subject to duplicative expenses to the extent of the Fund’s investment in any affiliated ETF. Finally, the shares of the ETFs in which the Fund may invest will be listed on a national securities exchange and the Fund will purchase or sell these shares on the secondary market at its current market price, which may be more or less than its net asset value per share.
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| GraniteShares Autocallable ORCL ETF | Box Spread E T F Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Box Spread ETF Risk. The Fund may invest in LBOX, an affiliated ETF advised by GraniteShares Advisors LLC, the Fund’s investment adviser, that employs a market-neutral box spread strategy to generate short-term, fixed-income-like returns. Box spread positions involve simultaneous long and short synthetic options positions on the same reference asset and are structured to capture an implied financing rate. While box spreads are designed to be market-neutral and to generate a return approximating prevailing short-term interest rates, they are subject to execution risk, counterparty risk with respect to the options positions, and the risk that the implied financing rate embedded in the box spread diverges from prevailing market rates in periods of market stress. The Fund’s investments in LBOX are made pursuant to Section 12(d)(1)(G) of the 1940 Act, which imposes no percentage-of-assets limits on the Fund’s investment in an exchange-traded fund. Accordingly, the Fund could, at any time, hold a material allocation in LBOX. The Fund’s adviser faces a conflict of interest in allocating Fund assets to an affiliated fund such as LBOX; see “Affiliated ETFs Risk.”
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| GraniteShares Autocallable ORCL ETF | U.S. Government And U.S. Agency Obligations Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | U.S. Government and U.S. Agency Obligations Risk. The Fund may invest in securities issued by the U.S. government or its agencies or instrumentalities. U.S. Government obligations include securities issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, such as the U.S. Treasury. Payment of principal and interest on U.S. Government obligations may be backed by the full faith and credit of the United States or may be backed solely by the issuing or guaranteeing agency or instrumentality itself. In the latter case, the investor must look principally to the agency or instrumentality issuing or guaranteeing the obligation for ultimate repayment, which agency or instrumentality may be privately owned. There can be no assurance that the U.S. Government would provide financial support to its agencies or instrumentalities (including government-sponsored enterprises) where it is not obligated to do so.
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| GraniteShares Autocallable ORCL ETF | Fixed Income Securities Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Fixed Income Securities Risk. The market value of Fixed Income Securities will change in response to interest rate changes and other factors, such as changes in the effective maturities and credit ratings of fixed income investments. During periods of falling interest rates, the values of outstanding Fixed Income Securities and related financial instruments generally rise. Conversely, during periods of rising interest rates, the values of such securities and related financial instruments generally decline. Fixed Income Securities are also subject to credit risk.
Investments in Fixed Income Securities may also involve the following risks, depending on the instrument involved:
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| GraniteShares Autocallable PLTR ETF | |||||||||||||||||||
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| Risk [Text Block] | PRINCIPAL RISKS OF INVESTING IN THE FUND
The principal risks of investing in the Fund are summarized below. As with any investment, there is a risk that you could lose all or a portion of your investment in the Fund. Each risk summarized below is considered a “principal risk” of investing in the Fund, regardless of the order in which it appears. Some or all of these risks may adversely affect the Fund’s net asset value per share (“NAV”), trading price, yield, total return and/or ability to meet its investment objectives. For more information about the risks of investing in the Fund, see the section in the Fund’s Prospectus titled “Additional Information About the Fund — Principal Risks of Investing in the Fund.”
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| GraniteShares Autocallable PLTR ETF | Underlying Asset Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Underlying Asset Risk. The performance of the Underlying Asset, and consequently the Fund’s performance, is subject to risks of the software industry. Companies in the software industry are subject to significant competitive pressures, such as aggressive pricing, new market entrants, competition for market share, short product cycles due to an accelerated rate of technological developments and the potential for limited earnings and/or falling profit margins. These companies also face the risks that new services, equipment or technologies will not be accepted by consumers and businesses or will become rapidly obsolete. These factors can affect the profitability of these companies and, as a result, the value of their securities. Also, patent protection is integral to the success of many companies in this industry, and profitability can be affected materially by, among other things, the cost of obtaining (or failing to obtain) patent approvals, the cost of litigating patent infringement and the loss of patent protection for products (which significantly increases pricing pressures and can materially reduce profitability with respect to such products). In addition, many software companies have limited operating histories. Prices of these companies’ securities historically have been more volatile than other securities, especially over the short term.
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| GraniteShares Autocallable PLTR ETF | Derivatives Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Derivatives Risk. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds, interest rates or indexes. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other ordinary investments, including risk related to the market, imperfect correlation with underlying investments, higher price volatility, lack of availability, counterparty risk, liquidity, valuation and legal restrictions. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. The use of derivatives may result in larger losses or smaller gains than directly investing in securities. When the Fund uses derivatives, there may be an imperfect correlation between the value of the Underlying Asset and the derivative, which may prevent the Fund from achieving its investment objectives. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of those amounts initially invested. In addition, the Fund’s investments in derivatives are subject to the following risks:
Options Contracts. The use of options contracts involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which are affected by fiscal and monetary policies and by national and international political, changes in the actual or implied volatility or the reference asset, the time remaining until the expiration of the option contract and economic events. For the Fund, in particular, the value of the options contracts in which it invests is substantially influenced by the value of the Underlying Asset. Selling put options exposes the Fund to the risk of potential loss if the market value of the Underlying Asset falls below the strike price before the option expires. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to such date, the value of an option generally does not increase or decrease at the same rate at the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the underlying instrument, and there may at times not be a liquid secondary market for certain options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. Additionally, the Fund’s practice of “rolling” may cause the Fund to experience losses if the expiring contracts do not generate proceeds enough to cover the costs of entering into new options contracts. Rolling refers to the practice of closing out one options position and opening another with a different expiration date and/or a different strike price. Further, if an option is exercised, the seller (writer) of a put option is obligated to purchase the underlying asset at the strike price, which can result in significant financial and regulatory obligations for the Fund if the market value of the asset has fallen substantially. Furthermore, when the Fund seeks to trade out of puts, especially near expiration, there is an added risk that the Fund may be required to allocate resources unexpectedly to fulfill these obligations. This potential exposure to physical settlement can significantly impact the Fund’s liquidity and market exposure, particularly in volatile market conditions.
Swap Risk: Swaps are subject to tracking risk because they may not be perfect substitutes for the instruments they are intended to hedge or replace. Over the counter swaps are subject to counterparty default. Leverage inherent in derivatives will tend to magnify the Fund’s losses. The swap agreements may reference standardized exchange-traded, FLEX, European Style or American Style put options contracts that are based on the values of the price returns of the Underlying Asset. that generate specific risks.
Counterparty Risk. Counterparty risk is the risk that a counterparty to a financial instrument held by the Fund or by a special purpose or structured vehicle invested in by the Fund may become insolvent or otherwise fail to perform its obligations, and the Fund may obtain no or limited recovery of its investment, and any recovery may be significantly delayed.
Over-the-Counter Market Risk. Securities and options traded in over-the-counter markets may trade less frequently and in limited volumes and thus exhibit more volatility and liquidity risk, and the prices paid by the Fund in over-the-counter transactions may include an undisclosed dealer markup. The Fund is also exposed to default by the over-the-counter option writer who may be unwilling or unable to perform its contractual obligations to the Fund.
In addition, a counterparty (the other party to a transaction or an agreement or the party with whom the Fund executes transactions) to a transaction (including repurchase transaction) with the Fund may be unable or unwilling to make timely principal, interest or settlement payments, or otherwise honor its obligations.
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| GraniteShares Autocallable PLTR ETF | Autocallable Structure Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Autocallable Structure Risk. The Fund’s returns are correlated to the performance of a theoretical portfolio of autocallables. Autocallables have specific structural features that may be unfamiliar to many investors:
Contingent Income Risk. Coupon payments from autocallables are not guaranteed and will not be made if the Underlying Asset falls below the Coupon Barrier on observation dates. This means the Fund may generate significantly less income than anticipated during market downturns. The expected absence of future coupon payments over the term of an autocallable could materially affect its value.
Early Redemption Risk. Autocallables may be called before their scheduled maturity if the Underlying Asset reaches or exceeds the Autocallable Barrier on observation dates. This automatic early redemption could force reinvestment of that portion of the portfolio at lower rates if market yields have declined.
Barrier Risk. If the Underlying Asset falls below the Maturity Barrier at the maturity of an autocallable, that portion of the portfolio will be fully exposed to the negative performance of the Underlying Asset from its initial level. For example, if the Underlying Asset has declined 45% at maturity of a particular autocallable, the portfolio allocated to that autocallable would lose 45% of its value. This conditional protection creates a binary outcome that can result in sudden, significant losses if barriers are breached.
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| GraniteShares Autocallable PLTR ETF | Calculation Methodology Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Calculation Methodology Risk. Autocallables rely on complex calculation methodologies that may not perform as expected under certain market conditions.
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| GraniteShares Autocallable PLTR ETF | Distribution Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective, the Fund seeks to provide current monthly income. There is no assurance that the Fund will make a distribution in any given month. If the Fund makes distributions, the amounts of such distributions will likely vary greatly from one distribution to the next. Additionally, the monthly distributions, if any, may consist of returns of capital, which would decrease the Fund’s NAV and trading price over time. As a result, an investor may suffer significant losses to their investment.
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| GraniteShares Autocallable PLTR ETF | NAV Erosion Risk Due to Distributions [Member] | |||||||||||||||||||
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| GraniteShares Autocallable PLTR ETF | Option Market Liquidity Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Option Market Liquidity Risk. Liquidity risk exists when particular investments are difficult to purchase or sell. The Fund’s investments in illiquid investments may reduce the returns of the Fund because it may be unable to sell the illiquid investments at an advantageous time or price.
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| GraniteShares Autocallable PLTR ETF | Laddered Portfolio Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Laddered Portfolio Risk. A laddered portfolio strategy may not perform as expected if market conditions remain unfavorable over an extended period, multiple autocallable instruments may experience losses simultaneously and/or the reallocation across autocallable instruments may result in suboptimal entry points during rapidly changing markets. A portfolio of autocallables providing exposure to the same Underlying Asset may not be homogeneously affected by a change in that Underlying Asset price as the impact of such change may depend on the tenor of each autocallable. Depending on market conditions, requests to create and/or redeem shares in the Fund may result in the average tenor of the portfolio of autocallables held by the Fund to deviate from the average tenor the Fund intends to achieve.
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| GraniteShares Autocallable PLTR ETF | Concentration Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Concentration Risk. To the extent that the Underlying Asset concentrates its investments in a particular industry, the Fund will be subject to the risks associated with that industry.
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| GraniteShares Autocallable PLTR ETF | ETF Risks [Member] | |||||||||||||||||||
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| Risk [Text Block] | ETF Risks.
Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that are authorized to purchase and redeem Shares directly from the Fund (known as “Authorized Participants” or “APs”). There are a limited number of financial institutions that post collateral for certain trades on an agency basis (i.e. on behalf of other market participants). In such circumstances, the Fund’s market price may be significantly different than its underlying net asset value. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services; or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
Cash Redemption Risk. The Fund currently expects to effect a significant portion of its creations and redemptions for cash, rather than in-kind securities. Paying redemption proceeds in cash rather than through in-kind delivery of portfolio securities may require the Fund to dispose of or sell portfolio securities or other assets at an inopportune time to obtain the cash needed to meet redemption orders. This may cause the Fund to sell a security and recognize a capital gain or loss that might not have been incurred if it had made a redemption in-kind. As a result, the Fund may pay out higher or lower annual capital gains distributions than ETFs that redeem in-kind. The use of cash creations and redemptions may also cause the Fund’s Shares to trade in the market at greater bid-ask spreads or greater premiums or discounts to the Fund’s NAV. Furthermore, the Fund may not be able to execute cash transactions for creation and redemption purposes at the same price used to determine the Fund’s NAV. To the extent that the maximum additional charge for creation or redemption transactions is insufficient to cover the execution shortfall, the Fund’s performance could be negatively impacted.
Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid-ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.
Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant.
Trading. Although Shares are listed on a national securities exchange, such as The Nasdaq Stock Market, LLC (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that an active trading market for the Shares will develop or be maintained or that the Shares will trade with any volume, or at all, on any stock exchange. This risk may be greater for the Fund as it seeks to have exposure to a single underlying stock as opposed to a more diverse portfolio like a traditional pooled investment. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares. Shares trade on the Exchange at a market price that may be below, at or above the Fund’s NAV. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged. In the event of an unscheduled market close for options contracts that reference a single stock, such as the Underlying Asset’s securities being halted or a market wide closure, settlement prices will be determined by the procedures of the listing exchange of the options contracts. As a result, the Fund could be adversely affected and be unable to implement its investment strategies in the event of an unscheduled closing.
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| GraniteShares Autocallable PLTR ETF | High Portfolio Turnover Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | High Portfolio Turnover Risk. The Fund may actively and frequently trade all or a significant portion of the Fund’s holdings. A high portfolio turnover rate increases transaction costs, which may increase the Fund’s expenses. Frequent trading may also cause adverse tax consequences for investors in the Fund due to an increase in short-term capital gains.
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| GraniteShares Autocallable PLTR ETF | Inflation Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the present value of the Fund’s assets and distributions, if any, may decline.
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| GraniteShares Autocallable PLTR ETF | Liquidity Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Liquidity Risk. Some securities held by the Fund, including options contracts, may be difficult to sell or be illiquid, particularly during times of market turmoil. This risk is greater for the Fund as it will hold options contracts on a single security, and not a broader range of options contracts. Markets for securities or financial instruments could be disrupted by a number of events, including, but not limited to, an economic crisis, natural disasters, epidemics/pandemics, new legislation or regulatory changes inside or outside the United States. Illiquid securities may be difficult to value, especially in changing or volatile markets. If the Fund is forced to sell an illiquid security at an unfavorable time or price, the Fund may be adversely impacted. Certain market conditions or restrictions, such as market rules related to short sales, may prevent the Fund from limiting losses, realizing gains or achieving a high correlation with the Underlying Asset. There is no assurance that a security that is deemed liquid when purchased will continue to be liquid. Market illiquidity may cause losses for the Fund.
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| GraniteShares Autocallable PLTR ETF | Management Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Management Risk. The Fund is subject to management risk because it is an actively managed portfolio. In managing the Fund’s investment portfolio, the portfolio managers will apply investment techniques and risk analyses that may not produce the desired result. There can be no guarantee that the Fund will meet its investment objective.
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| GraniteShares Autocallable PLTR ETF | Money Market Instrument Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Repurchase agreements are contracts in which a seller of securities agrees to buy the securities back at a specified time and price. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments, including money market funds, may lose money through fees or other means.
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| GraniteShares Autocallable PLTR ETF | New Fund Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | New Fund Risk. The Fund is a recently organized management investment company with limited operating history. As a result, prospective investors do not have a track record or history on which to base their investment decisions.
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| GraniteShares Autocallable PLTR ETF | Non-Diversification Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Non-Diversification Risk. Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer or a smaller number of issuers than if it was a diversified fund. As a result, a decline in the value of an investment in a single issuer or a smaller number of issuers could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio.
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| GraniteShares Autocallable PLTR ETF | Operational Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Operational Risk. The Fund is subject to risks arising from various operational factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund relies on third-parties for a range of services, including custody. Any delay or failure relating to engaging or maintaining such service providers may affect the Fund’s ability to meet its investment objective. Although the Fund and the Adviser seek to reduce these operational risks through controls and procedures, there is no way to completely protect against such risks.
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| GraniteShares Autocallable PLTR ETF | Recent Market Events Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Recent Market Events Risk. U.S. and international markets have experienced significant periods of volatility in recent years due to a number of economic, political and global macro factors, including uncertainty regarding interest rates and inflation, rising government debt in the U.S. and elsewhere, political events, changes in trade policy and armed conflict. Public health emergencies, such as the COVID-19 pandemic, have in the past caused, and may in the future cause, disruptions to business operations and supply chains, reduced consumer demand and significant market volatility. Armed conflict, including the conflict between Russia and Ukraine and conflicts in the Middle East, has caused, and could continue to cause, loss of life and severe adverse effects on regional and global economies and on the markets for certain securities and commodities. The U.S., the European Union and other countries have imposed, and may impose additional, sanctions and other restrictive measures on certain countries, individuals and companies, which could adversely affect the issuers, markets and economies concerned. In addition, the U.S. has imposed, and may continue to impose, tariffs and other trade barriers, and other countries have imposed or may impose retaliatory measures. Trade disputes between the U.S. and other countries could result in additional tariffs, trade barriers and/or investment restrictions. These and other events could adversely affect the Fund’s performance, and their duration and full effects cannot be predicted.
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| GraniteShares Autocallable PLTR ETF | Single Issuer Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Single Issuer Risk. Issuer-specific attributes may cause an investment in the Fund to be more volatile than a traditional pooled investment vehicle which diversifies risk or the market generally. The value of the Fund, which focuses on an individual security (the Underlying Asset), may be more volatile than a traditional pooled investment or the market as a whole and may perform differently from the value of a traditional pooled investment or the market as a whole.
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| GraniteShares Autocallable PLTR ETF | Tax Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Tax Risk. The Fund intends to elect and to qualify each year to be treated as a RIC under Subchapter M of the Code. As a RIC, the Fund will not be subject to U.S. federal income tax on the portion of its net investment income and net capital gain that it distributes to Shareholders, provided that it satisfies certain requirements of the Code. If the Fund does not qualify as a RIC for any taxable year and certain relief provisions are not available, the Fund’s taxable income will be subject to tax at the Fund level and to a further tax at the shareholder level when such income is distributed. To comply with the asset diversification test applicable to a RIC, the Fund will attempt to ensure that the value of the derivatives it holds never exceed 25% of the total value of Fund assets at the close of any quarter. If the Fund’s investments in the derivatives were to exceed 25% of the Fund’s total assets at the end of a tax quarter, the Fund, generally, has a grace period to cure such lack of compliance. If the Fund fails to timely cure, it may no longer be eligible to be treated as a RIC. In addition, distributions received by the Fund from the Underlying Asset may generate “bad income” that could prevent the Fund from meeting the “Income Requirement” of Subchapter M of the Code, which may cause the Fund to fail to qualify as a RIC. The Fund intends to treat any income it may derive from the options and swap contracts as “qualifying income” under the provisions of the Code applicable to RICs. If the income is not qualifying income the Fund may lose its status as a RIC. The Fund will, for each year, distribute substantially all of its net investment income and net capital gains.
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| GraniteShares Autocallable PLTR ETF | Investing In U.S. Equities Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Investing in U.S. Equities Risk. Investing in U.S. issuers subjects the Fund to legal, regulatory, political, currency, security, and economic risks that are specific to the U.S. Certain changes in the U.S., such as a weakening of the U.S. economy or a decline in its financial markets, may have an adverse effect on U.S. issuers.
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| GraniteShares Autocallable PLTR ETF | Affiliated Etfs Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Affiliated ETFs Risk. The Fund may invest in equity securities of other ETFs for which the Adviser serves as investment adviser. It is possible that a conflict of interest may arise. Additionally, to the extent the Fund invests in the securities of another affiliated ETF, the Fund will be subject to the investment risks of the ETF. Shareholders of the Fund are subject to duplicative expenses to the extent of the Fund’s investment in any affiliated ETF. Finally, the shares of the ETFs in which the Fund may invest will be listed on a national securities exchange and the Fund will purchase or sell these shares on the secondary market at its current market price, which may be more or less than its net asset value per share.
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| GraniteShares Autocallable PLTR ETF | Box Spread E T F Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Box Spread ETF Risk. The Fund may invest in LBOX, an affiliated ETF advised by GraniteShares Advisors LLC, the Fund’s investment adviser, that employs a market-neutral box spread strategy to generate short-term, fixed-income-like returns. Box spread positions involve simultaneous long and short synthetic options positions on the same reference asset and are structured to capture an implied financing rate. While box spreads are designed to be market-neutral and to generate a return approximating prevailing short-term interest rates, they are subject to execution risk, counterparty risk with respect to the options positions, and the risk that the implied financing rate embedded in the box spread diverges from prevailing market rates in periods of market stress. The Fund’s investments in LBOX are made pursuant to Section 12(d)(1)(G) of the 1940 Act, which imposes no percentage-of-assets limits on the Fund’s investment in an exchange-traded fund. Accordingly, the Fund could, at any time, hold a material allocation in LBOX. The Fund’s adviser faces a conflict of interest in allocating Fund assets to an affiliated fund such as LBOX; see “Affiliated ETFs Risk.”
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| GraniteShares Autocallable PLTR ETF | U.S. Government And U.S. Agency Obligations Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | U.S. Government and U.S. Agency Obligations Risk. The Fund may invest in securities issued by the U.S. government or its agencies or instrumentalities. U.S. Government obligations include securities issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, such as the U.S. Treasury. Payment of principal and interest on U.S. Government obligations may be backed by the full faith and credit of the United States or may be backed solely by the issuing or guaranteeing agency or instrumentality itself. In the latter case, the investor must look principally to the agency or instrumentality issuing or guaranteeing the obligation for ultimate repayment, which agency or instrumentality may be privately owned. There can be no assurance that the U.S. Government would provide financial support to its agencies or instrumentalities (including government-sponsored enterprises) where it is not obligated to do so.
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| GraniteShares Autocallable PLTR ETF | Fixed Income Securities Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Fixed Income Securities Risk. The market value of Fixed Income Securities will change in response to interest rate changes and other factors, such as changes in the effective maturities and credit ratings of fixed income investments. During periods of falling interest rates, the values of outstanding Fixed Income Securities and related financial instruments generally rise. Conversely, during periods of rising interest rates, the values of such securities and related financial instruments generally decline. Fixed Income Securities are also subject to credit risk.
Investments in Fixed Income Securities may also involve the following risks, depending on the instrument involved:
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| GraniteShares Autocallable QBTS ETF | |||||||||||||||||||
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| Risk [Text Block] | PRINCIPAL RISKS OF INVESTING IN THE FUND
The principal risks of investing in the Fund are summarized below. As with any investment, there is a risk that you could lose all or a portion of your investment in the Fund. Each risk summarized below is considered a “principal risk” of investing in the Fund, regardless of the order in which it appears. Some or all of these risks may adversely affect the Fund’s net asset value per share (“NAV”), trading price, yield, total return and/or ability to meet its investment objectives. For more information about the risks of investing in the Fund, see the section in the Fund’s Prospectus titled “Additional Information About the Fund — Principal Risks of Investing in the Fund.”
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| GraniteShares Autocallable QBTS ETF | Underlying Asset Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Underlying Asset Risk. The performance of the Underlying Asset, and consequently the Fund’s performance, is subject to risks of the technology hardware and semiconductors industries.
The information technology sector includes companies engaged in internet software and services, technology hardware and storage peripherals, electronic equipment instruments and components, and semiconductors and semiconductor equipment. Information technology companies face intense competition, both domestically and internationally, which may have an adverse effect on profit margins. Information technology companies may have limited product lines, markets, financial resources or personnel. The products of information technology companies may face rapid product obsolescence due to technological developments and frequent new product introduction, unpredictable changes in growth rates and competition for the services of qualified personnel. Failure to introduce new products, develop and maintain a loyal customer base, or achieve general market acceptance for their products could have a material adverse effect on a company’s business. Companies in the information technology sector are heavily dependent on intellectual property and the loss of patent, copyright and trademark protections may adversely affect the profitability of these companies.
The software industry can be significantly affected by intense competition, aggressive pricing, technological innovations, and product obsolescence. Companies in the software industry are subject to significant competitive pressures, such as aggressive pricing, new market entrants, competition for market share, short product cycles due to an accelerated rate of technological developments and the potential for limited earnings and/or falling profit margins. These companies also face the risks that new services, equipment or technologies will not be accepted by consumers and businesses or will become rapidly obsolete. These factors can affect the profitability of these companies and, as a result, the value of their securities. Also, patent protection is integral to the success of many companies in this industry, and profitability can be affected materially by, among other things, the cost of obtaining (or failing to obtain) patent approvals, the cost of litigating patent infringement and the loss of patent protection for products (which significantly increases pricing pressures and can materially reduce profitability with respect to such products). In addition, many software companies have limited operating histories. Prices of these companies’ securities historically have been more volatile than other securities, especially over the short term.
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| GraniteShares Autocallable QBTS ETF | Derivatives Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Derivatives Risk. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds, interest rates or indexes. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other ordinary investments, including risk related to the market, imperfect correlation with underlying investments, higher price volatility, lack of availability, counterparty risk, liquidity, valuation and legal restrictions. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. The use of derivatives may result in larger losses or smaller gains than directly investing in securities. When the Fund uses derivatives, there may be an imperfect correlation between the value of the Underlying Asset and the derivative, which may prevent the Fund from achieving its investment objectives. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of those amounts initially invested. In addition, the Fund’s investments in derivatives are subject to the following risks:
Options Contracts. The use of options contracts involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which are affected by fiscal and monetary policies and by national and international political, changes in the actual or implied volatility or the reference asset, the time remaining until the expiration of the option contract and economic events. For the Fund, in particular, the value of the options contracts in which it invests is substantially influenced by the value of the Underlying Asset. Selling put options exposes the Fund to the risk of potential loss if the market value of the Underlying Asset falls below the strike price before the option expires. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to such date, the value of an option generally does not increase or decrease at the same rate at the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the underlying instrument, and there may at times not be a liquid secondary market for certain options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. Additionally, the Fund’s practice of “rolling” may cause the Fund to experience losses if the expiring contracts do not generate proceeds enough to cover the costs of entering into new options contracts. Rolling refers to the practice of closing out one options position and opening another with a different expiration date and/or a different strike price. Further, if an option is exercised, the seller (writer) of a put option is obligated to purchase the underlying asset at the strike price, which can result in significant financial and regulatory obligations for the Fund if the market value of the asset has fallen substantially. Furthermore, when the Fund seeks to trade out of puts, especially near expiration, there is an added risk that the Fund may be required to allocate resources unexpectedly to fulfill these obligations. This potential exposure to physical settlement can significantly impact the Fund’s liquidity and market exposure, particularly in volatile market conditions.
Swap Risk: Swaps are subject to tracking risk because they may not be perfect substitutes for the instruments they are intended to hedge or replace. Over the counter swaps are subject to counterparty default. Leverage inherent in derivatives will tend to magnify the Fund’s losses. The swap agreements may reference standardized exchange-traded, FLEX, European Style or American Style put options contracts that are based on the values of the price returns of the Underlying Asset. that generate specific risks.
Counterparty Risk. Counterparty risk is the risk that a counterparty to a financial instrument held by the Fund or by a special purpose or structured vehicle invested in by the Fund may become insolvent or otherwise fail to perform its obligations, and the Fund may obtain no or limited recovery of its investment, and any recovery may be significantly delayed.
Over-the-Counter Market Risk. Securities and options traded in over-the-counter markets may trade less frequently and in limited volumes and thus exhibit more volatility and liquidity risk, and the prices paid by the Fund in over-the-counter transactions may include an undisclosed dealer markup. The Fund is also exposed to default by the over-the-counter option writer who may be unwilling or unable to perform its contractual obligations to the Fund.
In addition, a counterparty (the other party to a transaction or an agreement or the party with whom the Fund executes transactions) to a transaction (including repurchase transaction) with the Fund may be unable or unwilling to make timely principal, interest or settlement payments, or otherwise honor its obligations.
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| GraniteShares Autocallable QBTS ETF | Autocallable Structure Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Autocallable Structure Risk. The Fund’s returns are correlated to the performance of a theoretical portfolio of autocallables. Autocallables have specific structural features that may be unfamiliar to many investors:
Contingent Income Risk. Coupon payments from autocallables are not guaranteed and will not be made if the Underlying Asset falls below the Coupon Barrier on observation dates. This means the Fund may generate significantly less income than anticipated during market downturns. The expected absence of future coupon payments over the term of an autocallable could materially affect its value.
Early Redemption Risk. Autocallables may be called before their scheduled maturity if the Underlying Asset reaches or exceeds the Autocallable Barrier on observation dates. This automatic early redemption could force reinvestment of that portion of the portfolio at lower rates if market yields have declined.
Barrier Risk. If the Underlying Asset falls below the Maturity Barrier at the maturity of an autocallable, that portion of the portfolio will be fully exposed to the negative performance of the Underlying Asset from its initial level. For example, if the Underlying Asset has declined 45% at maturity of a particular autocallable, the portfolio allocated to that autocallable would lose 45% of its value. This conditional protection creates a binary outcome that can result in sudden, significant losses if barriers are breached.
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| GraniteShares Autocallable QBTS ETF | Calculation Methodology Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Calculation Methodology Risk. Autocallables rely on complex calculation methodologies that may not perform as expected under certain market conditions.
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| GraniteShares Autocallable QBTS ETF | Distribution Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective, the Fund seeks to provide current monthly income. There is no assurance that the Fund will make a distribution in any given month. If the Fund makes distributions, the amounts of such distributions will likely vary greatly from one distribution to the next. Additionally, the monthly distributions, if any, may consist of returns of capital, which would decrease the Fund’s NAV and trading price over time. As a result, an investor may suffer significant losses to their investment.
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| GraniteShares Autocallable QBTS ETF | NAV Erosion Risk Due to Distributions [Member] | |||||||||||||||||||
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| GraniteShares Autocallable QBTS ETF | Option Market Liquidity Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Option Market Liquidity Risk. Liquidity risk exists when particular investments are difficult to purchase or sell. The Fund’s investments in illiquid investments may reduce the returns of the Fund because it may be unable to sell the illiquid investments at an advantageous time or price.
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| GraniteShares Autocallable QBTS ETF | Laddered Portfolio Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Laddered Portfolio Risk. A laddered portfolio strategy may not perform as expected if market conditions remain unfavorable over an extended period, multiple autocallable instruments may experience losses simultaneously and/or the reallocation across autocallable instruments may result in suboptimal entry points during rapidly changing markets. A portfolio of autocallables providing exposure to the same Underlying Asset may not be homogeneously affected by a change in that Underlying Asset price as the impact of such change may depend on the tenor of each autocallable. Depending on market conditions, requests to create and/or redeem shares in the Fund may result in the average tenor of the portfolio of autocallables held by the Fund to deviate from the average tenor the Fund intends to achieve.
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| GraniteShares Autocallable QBTS ETF | Concentration Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Concentration Risk. To the extent that the Underlying Asset concentrates its investments in a particular industry, the Fund will be subject to the risks associated with that industry.
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| GraniteShares Autocallable QBTS ETF | ETF Risks [Member] | |||||||||||||||||||
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| Risk [Text Block] | ETF Risks.
Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that are authorized to purchase and redeem Shares directly from the Fund (known as “Authorized Participants” or “APs”). There are a limited number of financial institutions that post collateral for certain trades on an agency basis (i.e. on behalf of other market participants). In such circumstances, the Fund’s market price may be significantly different than its underlying net asset value. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services; or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
Cash Redemption Risk. The Fund currently expects to effect a significant portion of its creations and redemptions for cash, rather than in-kind securities. Paying redemption proceeds in cash rather than through in-kind delivery of portfolio securities may require the Fund to dispose of or sell portfolio securities or other assets at an inopportune time to obtain the cash needed to meet redemption orders. This may cause the Fund to sell a security and recognize a capital gain or loss that might not have been incurred if it had made a redemption in-kind. As a result, the Fund may pay out higher or lower annual capital gains distributions than ETFs that redeem in-kind. The use of cash creations and redemptions may also cause the Fund’s Shares to trade in the market at greater bid-ask spreads or greater premiums or discounts to the Fund’s NAV. Furthermore, the Fund may not be able to execute cash transactions for creation and redemption purposes at the same price used to determine the Fund’s NAV. To the extent that the maximum additional charge for creation or redemption transactions is insufficient to cover the execution shortfall, the Fund’s performance could be negatively impacted.
Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid-ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.
Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant.
Trading. Although Shares are listed on a national securities exchange, such as The Nasdaq Stock Market, LLC (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that an active trading market for the Shares will develop or be maintained or that the Shares will trade with any volume, or at all, on any stock exchange. This risk may be greater for the Fund as it seeks to have exposure to a single underlying stock as opposed to a more diverse portfolio like a traditional pooled investment. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares. Shares trade on the Exchange at a market price that may be below, at or above the Fund’s NAV. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged. In the event of an unscheduled market close for options contracts that reference a single stock, such as the Underlying Asset’s securities being halted or a market wide closure, settlement prices will be determined by the procedures of the listing exchange of the options contracts. As a result, the Fund could be adversely affected and be unable to implement its investment strategies in the event of an unscheduled closing.
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| GraniteShares Autocallable QBTS ETF | High Portfolio Turnover Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | High Portfolio Turnover Risk. The Fund may actively and frequently trade all or a significant portion of the Fund’s holdings. A high portfolio turnover rate increases transaction costs, which may increase the Fund’s expenses. Frequent trading may also cause adverse tax consequences for investors in the Fund due to an increase in short-term capital gains.
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| GraniteShares Autocallable QBTS ETF | Inflation Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the present value of the Fund’s assets and distributions, if any, may decline.
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| GraniteShares Autocallable QBTS ETF | Liquidity Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Liquidity Risk. Some securities held by the Fund, including options contracts, may be difficult to sell or be illiquid, particularly during times of market turmoil. This risk is greater for the Fund as it will hold options contracts on a single security, and not a broader range of options contracts. Markets for securities or financial instruments could be disrupted by a number of events, including, but not limited to, an economic crisis, natural disasters, epidemics/pandemics, new legislation or regulatory changes inside or outside the United States. Illiquid securities may be difficult to value, especially in changing or volatile markets. If the Fund is forced to sell an illiquid security at an unfavorable time or price, the Fund may be adversely impacted. Certain market conditions or restrictions, such as market rules related to short sales, may prevent the Fund from limiting losses, realizing gains or achieving a high correlation with the Underlying Asset. There is no assurance that a security that is deemed liquid when purchased will continue to be liquid. Market illiquidity may cause losses for the Fund.
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| GraniteShares Autocallable QBTS ETF | Management Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Management Risk. The Fund is subject to management risk because it is an actively managed portfolio. In managing the Fund’s investment portfolio, the portfolio managers will apply investment techniques and risk analyses that may not produce the desired result. There can be no guarantee that the Fund will meet its investment objective.
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| GraniteShares Autocallable QBTS ETF | Money Market Instrument Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Repurchase agreements are contracts in which a seller of securities agrees to buy the securities back at a specified time and price. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments, including money market funds, may lose money through fees or other means.
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| GraniteShares Autocallable QBTS ETF | New Fund Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | New Fund Risk. The Fund is a recently organized management investment company with no operating history. As a result, prospective investors do not have a track record or history on which to base their investment decisions.
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| GraniteShares Autocallable QBTS ETF | Non-Diversification Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Non-Diversification Risk. Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer or a smaller number of issuers than if it was a diversified fund. As a result, a decline in the value of an investment in a single issuer or a smaller number of issuers could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio.
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| GraniteShares Autocallable QBTS ETF | Operational Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Operational Risk. The Fund is subject to risks arising from various operational factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund relies on third-parties for a range of services, including custody. Any delay or failure relating to engaging or maintaining such service providers may affect the Fund’s ability to meet its investment objective. Although the Fund and the Adviser seek to reduce these operational risks through controls and procedures, there is no way to completely protect against such risks.
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| GraniteShares Autocallable QBTS ETF | Recent Market Events Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Recent Market Events Risk. U.S. and international markets have experienced significant periods of volatility in recent years due to a number of economic, political and global macro factors, including uncertainty regarding interest rates and inflation, rising government debt in the U.S. and elsewhere, political events, changes in trade policy and armed conflict. Public health emergencies, such as the COVID-19 pandemic, have in the past caused, and may in the future cause, disruptions to business operations and supply chains, reduced consumer demand and significant market volatility. Armed conflict, including the conflict between Russia and Ukraine and conflicts in the Middle East, has caused, and could continue to cause, loss of life and severe adverse effects on regional and global economies and on the markets for certain securities and commodities. The U.S., the European Union and other countries have imposed, and may impose additional, sanctions and other restrictive measures on certain countries, individuals and companies, which could adversely affect the issuers, markets and economies concerned. In addition, the U.S. has imposed, and may continue to impose, tariffs and other trade barriers, and other countries have imposed or may impose retaliatory measures. Trade disputes between the U.S. and other countries could result in additional tariffs, trade barriers and/or investment restrictions. These and other events could adversely affect the Fund’s performance, and their duration and full effects cannot be predicted.
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| GraniteShares Autocallable QBTS ETF | Single Issuer Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Single Issuer Risk. Issuer-specific attributes may cause an investment in the Fund to be more volatile than a traditional pooled investment vehicle which diversifies risk or the market generally. The value of the Fund, which focuses on an individual security (the Underlying Asset), may be more volatile than a traditional pooled investment or the market as a whole and may perform differently from the value of a traditional pooled investment or the market as a whole.
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| GraniteShares Autocallable QBTS ETF | Tax Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Tax Risk. The Fund intends to elect and to qualify each year to be treated as a RIC under Subchapter M of the Code. As a RIC, the Fund will not be subject to U.S. federal income tax on the portion of its net investment income and net capital gain that it distributes to Shareholders, provided that it satisfies certain requirements of the Code. If the Fund does not qualify as a RIC for any taxable year and certain relief provisions are not available, the Fund’s taxable income will be subject to tax at the Fund level and to a further tax at the shareholder level when such income is distributed. To comply with the asset diversification test applicable to a RIC, the Fund will attempt to ensure that the value of the derivatives it holds never exceed 25% of the total value of Fund assets at the close of any quarter. If the Fund’s investments in the derivatives were to exceed 25% of the Fund’s total assets at the end of a tax quarter, the Fund, generally, has a grace period to cure such lack of compliance. If the Fund fails to timely cure, it may no longer be eligible to be treated as a RIC. In addition, distributions received by the Fund from the Underlying Asset may generate “bad income” that could prevent the Fund from meeting the “Income Requirement” of Subchapter M of the Code, which may cause the Fund to fail to qualify as a RIC. The Fund intends to treat any income it may derive from the options and swap contracts as “qualifying income” under the provisions of the Code applicable to RICs. If the income is not qualifying income the Fund may lose its status as a RIC. The Fund will, for each year, distribute substantially all of its net investment income and net capital gains.
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| GraniteShares Autocallable QBTS ETF | Investing In U.S. Equities Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Investing in U.S. Equities Risk. Investing in U.S. issuers subjects the Fund to legal, regulatory, political, currency, security, and economic risks that are specific to the U.S. Certain changes in the U.S., such as a weakening of the U.S. economy or a decline in its financial markets, may have an adverse effect on U.S. issuers.
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| GraniteShares Autocallable QBTS ETF | Affiliated Etfs Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Affiliated ETFs Risk. The Fund may invest in equity securities of other ETFs for which the Adviser serves as investment adviser. It is possible that a conflict of interest may arise. Additionally, to the extent the Fund invests in the securities of another affiliated ETF, the Fund will be subject to the investment risks of the ETF. Shareholders of the Fund are subject to duplicative expenses to the extent of the Fund’s investment in any affiliated ETF. Finally, the shares of the ETFs in which the Fund may invest will be listed on a national securities exchange and the Fund will purchase or sell these shares on the secondary market at its current market price, which may be more or less than its net asset value per share.
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| GraniteShares Autocallable QBTS ETF | Box Spread E T F Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Box Spread ETF Risk. The Fund may invest in LBOX, an affiliated ETF advised by GraniteShares Advisors LLC, the Fund’s investment adviser, that employs a market-neutral box spread strategy to generate short-term, fixed-income-like returns. Box spread positions involve simultaneous long and short synthetic options positions on the same reference asset and are structured to capture an implied financing rate. While box spreads are designed to be market-neutral and to generate a return approximating prevailing short-term interest rates, they are subject to execution risk, counterparty risk with respect to the options positions, and the risk that the implied financing rate embedded in the box spread diverges from prevailing market rates in periods of market stress. The Fund’s investments in LBOX are made pursuant to Section 12(d)(1)(G) of the 1940 Act, which imposes no percentage-of-assets limits on the Fund’s investment in an exchange-traded fund. Accordingly, the Fund could, at any time, hold a material allocation in LBOX. The Fund’s adviser faces a conflict of interest in allocating Fund assets to an affiliated fund such as LBOX; see “Affiliated ETFs Risk.”
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| GraniteShares Autocallable QBTS ETF | U.S. Government And U.S. Agency Obligations Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | U.S. Government and U.S. Agency Obligations Risk. The Fund may invest in securities issued by the U.S. government or its agencies or instrumentalities. U.S. Government obligations include securities issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, such as the U.S. Treasury. Payment of principal and interest on U.S. Government obligations may be backed by the full faith and credit of the United States or may be backed solely by the issuing or guaranteeing agency or instrumentality itself. In the latter case, the investor must look principally to the agency or instrumentality issuing or guaranteeing the obligation for ultimate repayment, which agency or instrumentality may be privately owned. There can be no assurance that the U.S. Government would provide financial support to its agencies or instrumentalities (including government-sponsored enterprises) where it is not obligated to do so.
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| GraniteShares Autocallable QBTS ETF | Fixed Income Securities Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Fixed Income Securities Risk. The market value of Fixed Income Securities will change in response to interest rate changes and other factors, such as changes in the effective maturities and credit ratings of fixed income investments. During periods of falling interest rates, the values of outstanding Fixed Income Securities and related financial instruments generally rise. Conversely, during periods of rising interest rates, the values of such securities and related financial instruments generally decline. Fixed Income Securities are also subject to credit risk.
Investments in Fixed Income Securities may also involve the following risks, depending on the instrument involved:
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| GraniteShares Autocallable RDDT ETF | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | PRINCIPAL RISKS OF INVESTING IN THE FUND
The principal risks of investing in the Fund are summarized below. As with any investment, there is a risk that you could lose all or a portion of your investment in the Fund. Each risk summarized below is considered a “principal risk” of investing in the Fund, regardless of the order in which it appears. Some or all of these risks may adversely affect the Fund’s net asset value per share (“NAV”), trading price, yield, total return and/or ability to meet its investment objectives. For more information about the risks of investing in the Fund, see the section in the Fund’s Prospectus titled “Additional Information About the Fund — Principal Risks of Investing in the Fund.”
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| GraniteShares Autocallable RDDT ETF | Underlying Asset Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Underlying Asset Risk. The performance of the Underlying Asset, and consequently the Fund’s performance, is subject to the risks of the electronic data processing industry. Any data breaches, unauthorized access, data loss due to system malfunctions, cyberattacks, privacy violations, data integrity issues, system outages, hardware failures, software vulnerabilities, human error, and power disruptions; essentially, any threat that could compromise the confidentiality, integrity, or availability of stored or processed data could have a material adverse effect on our company, its prospects and financial performance. Worldwide economic conditions could have an effect on the demand for our company’s services and products and could result in declining revenue and earnings. General economic declines or a softening of the economy make it more likely that our company may experience difficulties collecting accounts receivable, sales and demand for our company’s products may decrease, and our company’s operating results may be adversely affected. The Fund’s daily returns may be affected by many factors but will depend on the performance and volatility of the Underlying Asset.
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| GraniteShares Autocallable RDDT ETF | Derivatives Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Derivatives Risk. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds, interest rates or indexes. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other ordinary investments, including risk related to the market, imperfect correlation with underlying investments, higher price volatility, lack of availability, counterparty risk, liquidity, valuation and legal restrictions. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. The use of derivatives may result in larger losses or smaller gains than directly investing in securities. When the Fund uses derivatives, there may be an imperfect correlation between the value of the Underlying Asset and the derivative, which may prevent the Fund from achieving its investment objectives. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of those amounts initially invested. In addition, the Fund’s investments in derivatives are subject to the following risks:
Options Contracts. The use of options contracts involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which are affected by fiscal and monetary policies and by national and international political, changes in the actual or implied volatility or the reference asset, the time remaining until the expiration of the option contract and economic events. For the Fund, in particular, the value of the options contracts in which it invests is substantially influenced by the value of the Underlying Asset. Selling put options exposes the Fund to the risk of potential loss if the market value of the Underlying Asset falls below the strike price before the option expires. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to such date, the value of an option generally does not increase or decrease at the same rate at the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the underlying instrument, and there may at times not be a liquid secondary market for certain options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. Additionally, the Fund’s practice of “rolling” may cause the Fund to experience losses if the expiring contracts do not generate proceeds enough to cover the costs of entering into new options contracts. Rolling refers to the practice of closing out one options position and opening another with a different expiration date and/or a different strike price. Further, if an option is exercised, the seller (writer) of a put option is obligated to purchase the underlying asset at the strike price, which can result in significant financial and regulatory obligations for the Fund if the market value of the asset has fallen substantially. Furthermore, when the Fund seeks to trade out of puts, especially near expiration, there is an added risk that the Fund may be required to allocate resources unexpectedly to fulfill these obligations. This potential exposure to physical settlement can significantly impact the Fund’s liquidity and market exposure, particularly in volatile market conditions.
Swap Risk: Swaps are subject to tracking risk because they may not be perfect substitutes for the instruments they are intended to hedge or replace. Over the counter swaps are subject to counterparty default. Leverage inherent in derivatives will tend to magnify the Fund’s losses. The swap agreements may reference standardized exchange-traded, FLEX, European Style or American Style put options contracts that are based on the values of the price returns of the Underlying Asset. that generate specific risks.
Counterparty Risk. Counterparty risk is the risk that a counterparty to a financial instrument held by the Fund or by a special purpose or structured vehicle invested in by the Fund may become insolvent or otherwise fail to perform its obligations, and the Fund may obtain no or limited recovery of its investment, and any recovery may be significantly delayed.
Over-the-Counter Market Risk. Securities and options traded in over-the-counter markets may trade less frequently and in limited volumes and thus exhibit more volatility and liquidity risk, and the prices paid by the Fund in over-the-counter transactions may include an undisclosed dealer markup. The Fund is also exposed to default by the over-the-counter option writer who may be unwilling or unable to perform its contractual obligations to the Fund.
In addition, a counterparty (the other party to a transaction or an agreement or the party with whom the Fund executes transactions) to a transaction (including repurchase transaction) with the Fund may be unable or unwilling to make timely principal, interest or settlement payments, or otherwise honor its obligations.
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| GraniteShares Autocallable RDDT ETF | Autocallable Structure Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Autocallable Structure Risk. The Fund’s returns are correlated to the performance of a theoretical portfolio of autocallables. Autocallables have specific structural features that may be unfamiliar to many investors:
Contingent Income Risk. Coupon payments from autocallables are not guaranteed and will not be made if the Underlying Asset falls below the Coupon Barrier on observation dates. This means the Fund may generate significantly less income than anticipated during market downturns. The expected absence of future coupon payments over the term of an autocallable could materially affect its value.
Early Redemption Risk. Autocallables may be called before their scheduled maturity if the Underlying Asset reaches or exceeds the Autocallable Barrier on observation dates. This automatic early redemption could force reinvestment of that portion of the portfolio at lower rates if market yields have declined.
Barrier Risk. If the Underlying Asset falls below the Maturity Barrier at the maturity of an autocallable, that portion of the portfolio will be fully exposed to the negative performance of the Underlying Asset from its initial level. For example, if the Underlying Asset has declined 45% at maturity of a particular autocallable, the portfolio allocated to that autocallable would lose 45% of its value. This conditional protection creates a binary outcome that can result in sudden, significant losses if barriers are breached.
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| GraniteShares Autocallable RDDT ETF | Calculation Methodology Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Calculation Methodology Risk. Autocallables rely on complex calculation methodologies that may not perform as expected under certain market conditions.
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| GraniteShares Autocallable RDDT ETF | Distribution Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective, the Fund seeks to provide current monthly income. There is no assurance that the Fund will make a distribution in any given month. If the Fund makes distributions, the amounts of such distributions will likely vary greatly from one distribution to the next. Additionally, the monthly distributions, if any, may consist of returns of capital, which would decrease the Fund’s NAV and trading price over time. As a result, an investor may suffer significant losses to their investment.
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| GraniteShares Autocallable RDDT ETF | NAV Erosion Risk Due to Distributions [Member] | |||||||||||||||||||
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| GraniteShares Autocallable RDDT ETF | Option Market Liquidity Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Option Market Liquidity Risk. Liquidity risk exists when particular investments are difficult to purchase or sell. The Fund’s investments in illiquid investments may reduce the returns of the Fund because it may be unable to sell the illiquid investments at an advantageous time or price.
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| GraniteShares Autocallable RDDT ETF | Laddered Portfolio Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Laddered Portfolio Risk. A laddered portfolio strategy may not perform as expected if market conditions remain unfavorable over an extended period, multiple autocallable instruments may experience losses simultaneously and/or the reallocation across autocallable instruments may result in suboptimal entry points during rapidly changing markets. A portfolio of autocallables providing exposure to the same Underlying Asset may not be homogeneously affected by a change in that Underlying Asset price as the impact of such change may depend on the tenor of each autocallable. Depending on market conditions, requests to create and/or redeem shares in the Fund may result in the average tenor of the portfolio of autocallables held by the Fund to deviate from the average tenor the Fund intends to achieve.
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| GraniteShares Autocallable RDDT ETF | Concentration Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Concentration Risk. To the extent that the Underlying Asset concentrates its investments in a particular industry, the Fund will be subject to the risks associated with that industry.
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| GraniteShares Autocallable RDDT ETF | ETF Risks [Member] | |||||||||||||||||||
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| Risk [Text Block] | ETF Risks.
Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that are authorized to purchase and redeem Shares directly from the Fund (known as “Authorized Participants” or “APs”). There are a limited number of financial institutions that post collateral for certain trades on an agency basis (i.e. on behalf of other market participants). In such circumstances, the Fund’s market price may be significantly different than its underlying net asset value. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services; or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
Cash Redemption Risk. The Fund currently expects to effect a significant portion of its creations and redemptions for cash, rather than in-kind securities. Paying redemption proceeds in cash rather than through in-kind delivery of portfolio securities may require the Fund to dispose of or sell portfolio securities or other assets at an inopportune time to obtain the cash needed to meet redemption orders. This may cause the Fund to sell a security and recognize a capital gain or loss that might not have been incurred if it had made a redemption in-kind. As a result, the Fund may pay out higher or lower annual capital gains distributions than ETFs that redeem in-kind. The use of cash creations and redemptions may also cause the Fund’s Shares to trade in the market at greater bid-ask spreads or greater premiums or discounts to the Fund’s NAV. Furthermore, the Fund may not be able to execute cash transactions for creation and redemption purposes at the same price used to determine the Fund’s NAV. To the extent that the maximum additional charge for creation or redemption transactions is insufficient to cover the execution shortfall, the Fund’s performance could be negatively impacted.
Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid-ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.
Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant.
Trading. Although Shares are listed on a national securities exchange, such as The Nasdaq Stock Market, LLC (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that an active trading market for the Shares will develop or be maintained or that the Shares will trade with any volume, or at all, on any stock exchange. This risk may be greater for the Fund as it seeks to have exposure to a single underlying stock as opposed to a more diverse portfolio like a traditional pooled investment. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares. Shares trade on the Exchange at a market price that may be below, at or above the Fund’s NAV. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged. In the event of an unscheduled market close for options contracts that reference a single stock, such as the Underlying Asset’s securities being halted or a market wide closure, settlement prices will be determined by the procedures of the listing exchange of the options contracts. As a result, the Fund could be adversely affected and be unable to implement its investment strategies in the event of an unscheduled closing.
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| GraniteShares Autocallable RDDT ETF | High Portfolio Turnover Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | High Portfolio Turnover Risk. The Fund may actively and frequently trade all or a significant portion of the Fund’s holdings. A high portfolio turnover rate increases transaction costs, which may increase the Fund’s expenses. Frequent trading may also cause adverse tax consequences for investors in the Fund due to an increase in short-term capital gains.
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| GraniteShares Autocallable RDDT ETF | Inflation Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the present value of the Fund’s assets and distributions, if any, may decline.
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| GraniteShares Autocallable RDDT ETF | Liquidity Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Liquidity Risk. Some securities held by the Fund, including options contracts, may be difficult to sell or be illiquid, particularly during times of market turmoil. This risk is greater for the Fund as it will hold options contracts on a single security, and not a broader range of options contracts. Markets for securities or financial instruments could be disrupted by a number of events, including, but not limited to, an economic crisis, natural disasters, epidemics/pandemics, new legislation or regulatory changes inside or outside the United States. Illiquid securities may be difficult to value, especially in changing or volatile markets. If the Fund is forced to sell an illiquid security at an unfavorable time or price, the Fund may be adversely impacted. Certain market conditions or restrictions, such as market rules related to short sales, may prevent the Fund from limiting losses, realizing gains or achieving a high correlation with the Underlying Asset. There is no assurance that a security that is deemed liquid when purchased will continue to be liquid. Market illiquidity may cause losses for the Fund.
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| GraniteShares Autocallable RDDT ETF | Management Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Management Risk. The Fund is subject to management risk because it is an actively managed portfolio. In managing the Fund’s investment portfolio, the portfolio managers will apply investment techniques and risk analyses that may not produce the desired result. There can be no guarantee that the Fund will meet its investment objective.
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| GraniteShares Autocallable RDDT ETF | Money Market Instrument Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Repurchase agreements are contracts in which a seller of securities agrees to buy the securities back at a specified time and price. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments, including money market funds, may lose money through fees or other means.
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| GraniteShares Autocallable RDDT ETF | New Fund Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | New Fund Risk. The Fund is a recently organized management investment company with no operating history. As a result, prospective investors do not have a track record or history on which to base their investment decisions.
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| GraniteShares Autocallable RDDT ETF | Non-Diversification Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Non-Diversification Risk. Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer or a smaller number of issuers than if it was a diversified fund. As a result, a decline in the value of an investment in a single issuer or a smaller number of issuers could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio.
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| GraniteShares Autocallable RDDT ETF | Operational Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Operational Risk. The Fund is subject to risks arising from various operational factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund relies on third-parties for a range of services, including custody. Any delay or failure relating to engaging or maintaining such service providers may affect the Fund’s ability to meet its investment objective. Although the Fund and the Adviser seek to reduce these operational risks through controls and procedures, there is no way to completely protect against such risks.
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| GraniteShares Autocallable RDDT ETF | Recent Market Events Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Recent Market Events Risk. U.S. and international markets have experienced significant periods of volatility in recent years due to a number of economic, political and global macro factors, including uncertainty regarding interest rates and inflation, rising government debt in the U.S. and elsewhere, political events, changes in trade policy and armed conflict. Public health emergencies, such as the COVID-19 pandemic, have in the past caused, and may in the future cause, disruptions to business operations and supply chains, reduced consumer demand and significant market volatility. Armed conflict, including the conflict between Russia and Ukraine and conflicts in the Middle East, has caused, and could continue to cause, loss of life and severe adverse effects on regional and global economies and on the markets for certain securities and commodities. The U.S., the European Union and other countries have imposed, and may impose additional, sanctions and other restrictive measures on certain countries, individuals and companies, which could adversely affect the issuers, markets and economies concerned. In addition, the U.S. has imposed, and may continue to impose, tariffs and other trade barriers, and other countries have imposed or may impose retaliatory measures. Trade disputes between the U.S. and other countries could result in additional tariffs, trade barriers and/or investment restrictions. These and other events could adversely affect the Fund’s performance, and their duration and full effects cannot be predicted.
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| GraniteShares Autocallable RDDT ETF | Single Issuer Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Single Issuer Risk. Issuer-specific attributes may cause an investment in the Fund to be more volatile than a traditional pooled investment vehicle which diversifies risk or the market generally. The value of the Fund, which focuses on an individual security (the Underlying Asset), may be more volatile than a traditional pooled investment or the market as a whole and may perform differently from the value of a traditional pooled investment or the market as a whole.
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| GraniteShares Autocallable RDDT ETF | Tax Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Tax Risk. The Fund intends to elect and to qualify each year to be treated as a RIC under Subchapter M of the Code. As a RIC, the Fund will not be subject to U.S. federal income tax on the portion of its net investment income and net capital gain that it distributes to Shareholders, provided that it satisfies certain requirements of the Code. If the Fund does not qualify as a RIC for any taxable year and certain relief provisions are not available, the Fund’s taxable income will be subject to tax at the Fund level and to a further tax at the shareholder level when such income is distributed. To comply with the asset diversification test applicable to a RIC, the Fund will attempt to ensure that the value of the derivatives it holds never exceed 25% of the total value of Fund assets at the close of any quarter. If the Fund’s investments in the derivatives were to exceed 25% of the Fund’s total assets at the end of a tax quarter, the Fund, generally, has a grace period to cure such lack of compliance. If the Fund fails to timely cure, it may no longer be eligible to be treated as a RIC. In addition, distributions received by the Fund from the Underlying Asset may generate “bad income” that could prevent the Fund from meeting the “Income Requirement” of Subchapter M of the Code, which may cause the Fund to fail to qualify as a RIC. The Fund intends to treat any income it may derive from the options and swap contracts as “qualifying income” under the provisions of the Code applicable to RICs. If the income is not qualifying income the Fund may lose its status as a RIC. The Fund will, for each year, distribute substantially all of its net investment income and net capital gains.
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| GraniteShares Autocallable RDDT ETF | Investing In U.S. Equities Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Investing in U.S. Equities Risk. Investing in U.S. issuers subjects the Fund to legal, regulatory, political, currency, security, and economic risks that are specific to the U.S. Certain changes in the U.S., such as a weakening of the U.S. economy or a decline in its financial markets, may have an adverse effect on U.S. issuers.
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| GraniteShares Autocallable RDDT ETF | Affiliated Etfs Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Affiliated ETFs Risk. The Fund may invest in equity securities of other ETFs for which the Adviser serves as investment adviser. It is possible that a conflict of interest may arise. Additionally, to the extent the Fund invests in the securities of another affiliated ETF, the Fund will be subject to the investment risks of the ETF. Shareholders of the Fund are subject to duplicative expenses to the extent of the Fund’s investment in any affiliated ETF. Finally, the shares of the ETFs in which the Fund may invest will be listed on a national securities exchange and the Fund will purchase or sell these shares on the secondary market at its current market price, which may be more or less than its net asset value per share.
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| GraniteShares Autocallable RDDT ETF | Box Spread E T F Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Box Spread ETF Risk. The Fund may invest in LBOX, an affiliated ETF advised by GraniteShares Advisors LLC, the Fund’s investment adviser, that employs a market-neutral box spread strategy to generate short-term, fixed-income-like returns. Box spread positions involve simultaneous long and short synthetic options positions on the same reference asset and are structured to capture an implied financing rate. While box spreads are designed to be market-neutral and to generate a return approximating prevailing short-term interest rates, they are subject to execution risk, counterparty risk with respect to the options positions, and the risk that the implied financing rate embedded in the box spread diverges from prevailing market rates in periods of market stress. The Fund’s investments in LBOX are made pursuant to Section 12(d)(1)(G) of the 1940 Act, which imposes no percentage-of-assets limits on the Fund’s investment in an exchange-traded fund. Accordingly, the Fund could, at any time, hold a material allocation in LBOX. The Fund’s adviser faces a conflict of interest in allocating Fund assets to an affiliated fund such as LBOX; see “Affiliated ETFs Risk.”
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| GraniteShares Autocallable RDDT ETF | U.S. Government And U.S. Agency Obligations Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | U.S. Government and U.S. Agency Obligations Risk. The Fund may invest in securities issued by the U.S. government or its agencies or instrumentalities. U.S. Government obligations include securities issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, such as the U.S. Treasury. Payment of principal and interest on U.S. Government obligations may be backed by the full faith and credit of the United States or may be backed solely by the issuing or guaranteeing agency or instrumentality itself. In the latter case, the investor must look principally to the agency or instrumentality issuing or guaranteeing the obligation for ultimate repayment, which agency or instrumentality may be privately owned. There can be no assurance that the U.S. Government would provide financial support to its agencies or instrumentalities (including government-sponsored enterprises) where it is not obligated to do so.
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| GraniteShares Autocallable RDDT ETF | Fixed Income Securities Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Fixed Income Securities Risk. The market value of Fixed Income Securities will change in response to interest rate changes and other factors, such as changes in the effective maturities and credit ratings of fixed income investments. During periods of falling interest rates, the values of outstanding Fixed Income Securities and related financial instruments generally rise. Conversely, during periods of rising interest rates, the values of such securities and related financial instruments generally decline. Fixed Income Securities are also subject to credit risk.
Investments in Fixed Income Securities may also involve the following risks, depending on the instrument involved:
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| GraniteShares Autocallable RGTI ETF | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | PRINCIPAL RISKS OF INVESTING IN THE FUND
The principal risks of investing in the Fund are summarized below. As with any investment, there is a risk that you could lose all or a portion of your investment in the Fund. Each risk summarized below is considered a “principal risk” of investing in the Fund, regardless of the order in which it appears. Some or all of these risks may adversely affect the Fund’s net asset value per share (“NAV”), trading price, yield, total return and/or ability to meet its investment objectives. For more information about the risks of investing in the Fund, see the section in the Fund’s Prospectus titled “Additional Information About the Fund — Principal Risks of Investing in the Fund.”
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| GraniteShares Autocallable RGTI ETF | Underlying Asset Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Underlying Asset Risk. The performance of the Underlying Asset, and consequently the Fund’s performance, is subject to the risks of the electronic data processing industry. Companies in the electronic data processing industry are subject to many risks that can negatively impact their revenue and viability including, but are not limited to any data breaches, unauthorized access, data loss due to system malfunctions, cyberattacks, privacy violations, data integrity issues, system outages, hardware failures, software vulnerabilities, human error, and power disruptions; essentially, any threat that could compromise the confidentiality, integrity, or availability of stored or processed data could have a material adverse effect on our company, its prospects and financial performance. Worldwide economic conditions could have an effect on the demand for our company’s services and products and could result in declining revenue and earnings. General economic declines or a softening of the economy make it more likely that our company may experience difficulties collecting accounts receivable, sales and demand for our company’s products may decrease, and our company’s operating results may be adversely affected. The Fund’s daily returns may be affected by many factors but will depend on the performance and volatility of the Underlying Asset.
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| GraniteShares Autocallable RGTI ETF | Derivatives Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Derivatives Risk. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds, interest rates or indexes. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other ordinary investments, including risk related to the market, imperfect correlation with underlying investments, higher price volatility, lack of availability, counterparty risk, liquidity, valuation and legal restrictions. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. The use of derivatives may result in larger losses or smaller gains than directly investing in securities. When the Fund uses derivatives, there may be an imperfect correlation between the value of the Underlying Asset and the derivative, which may prevent the Fund from achieving its investment objectives. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of those amounts initially invested. In addition, the Fund’s investments in derivatives are subject to the following risks:
Options Contracts. The use of options contracts involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which are affected by fiscal and monetary policies and by national and international political, changes in the actual or implied volatility or the reference asset, the time remaining until the expiration of the option contract and economic events. For the Fund, in particular, the value of the options contracts in which it invests is substantially influenced by the value of the Underlying Asset. Selling put options exposes the Fund to the risk of potential loss if the market value of the Underlying Asset falls below the strike price before the option expires. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to such date, the value of an option generally does not increase or decrease at the same rate at the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the underlying instrument, and there may at times not be a liquid secondary market for certain options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. Additionally, the Fund’s practice of “rolling” may cause the Fund to experience losses if the expiring contracts do not generate proceeds enough to cover the costs of entering into new options contracts. Rolling refers to the practice of closing out one options position and opening another with a different expiration date and/or a different strike price. Further, if an option is exercised, the seller (writer) of a put option is obligated to purchase the underlying asset at the strike price, which can result in significant financial and regulatory obligations for the Fund if the market value of the asset has fallen substantially. Furthermore, when the Fund seeks to trade out of puts, especially near expiration, there is an added risk that the Fund may be required to allocate resources unexpectedly to fulfill these obligations. This potential exposure to physical settlement can significantly impact the Fund’s liquidity and market exposure, particularly in volatile market conditions.
Swap Risk: Swaps are subject to tracking risk because they may not be perfect substitutes for the instruments they are intended to hedge or replace. Over the counter swaps are subject to counterparty default. Leverage inherent in derivatives will tend to magnify the Fund’s losses. The swap agreements may reference standardized exchange-traded, FLEX, European Style or American Style put options contracts that are based on the values of the price returns of the Underlying Asset. that generate specific risks.
Counterparty Risk. Counterparty risk is the risk that a counterparty to a financial instrument held by the Fund or by a special purpose or structured vehicle invested in by the Fund may become insolvent or otherwise fail to perform its obligations, and the Fund may obtain no or limited recovery of its investment, and any recovery may be significantly delayed.
Over-the-Counter Market Risk. Securities and options traded in over-the-counter markets may trade less frequently and in limited volumes and thus exhibit more volatility and liquidity risk, and the prices paid by the Fund in over-the-counter transactions may include an undisclosed dealer markup. The Fund is also exposed to default by the over-the-counter option writer who may be unwilling or unable to perform its contractual obligations to the Fund.
In addition, a counterparty (the other party to a transaction or an agreement or the party with whom the Fund executes transactions) to a transaction (including repurchase transaction) with the Fund may be unable or unwilling to make timely principal, interest or settlement payments, or otherwise honor its obligations.
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| GraniteShares Autocallable RGTI ETF | Autocallable Structure Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Autocallable Structure Risk. The Fund’s returns are correlated to the performance of a theoretical portfolio of autocallables. Autocallables have specific structural features that may be unfamiliar to many investors:
Contingent Income Risk. Coupon payments from autocallables are not guaranteed and will not be made if the Underlying Asset falls below the Coupon Barrier on observation dates. This means the Fund may generate significantly less income than anticipated during market downturns. The expected absence of future coupon payments over the term of an autocallable could materially affect its value.
Early Redemption Risk. Autocallables may be called before their scheduled maturity if the Underlying Asset reaches or exceeds the Autocallable Barrier on observation dates. This automatic early redemption could force reinvestment of that portion of the portfolio at lower rates if market yields have declined.
Barrier Risk. If the Underlying Asset falls below the Maturity Barrier at the maturity of an autocallable, that portion of the portfolio will be fully exposed to the negative performance of the Underlying Asset from its initial level. For example, if the Underlying Asset has declined 45% at maturity of a particular autocallable, the portfolio allocated to that autocallable would lose 45% of its value. This conditional protection creates a binary outcome that can result in sudden, significant losses if barriers are breached.
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| GraniteShares Autocallable RGTI ETF | Calculation Methodology Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Calculation Methodology Risk. Autocallables rely on complex calculation methodologies that may not perform as expected under certain market conditions.
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| GraniteShares Autocallable RGTI ETF | Distribution Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective, the Fund seeks to provide current monthly income. There is no assurance that the Fund will make a distribution in any given month. If the Fund makes distributions, the amounts of such distributions will likely vary greatly from one distribution to the next. Additionally, the monthly distributions, if any, may consist of returns of capital, which would decrease the Fund’s NAV and trading price over time. As a result, an investor may suffer significant losses to their investment.
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| GraniteShares Autocallable RGTI ETF | NAV Erosion Risk Due to Distributions [Member] | |||||||||||||||||||
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| GraniteShares Autocallable RGTI ETF | Option Market Liquidity Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Option Market Liquidity Risk. Liquidity risk exists when particular investments are difficult to purchase or sell. The Fund’s investments in illiquid investments may reduce the returns of the Fund because it may be unable to sell the illiquid investments at an advantageous time or price.
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| GraniteShares Autocallable RGTI ETF | Laddered Portfolio Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Laddered Portfolio Risk. A laddered portfolio strategy may not perform as expected if market conditions remain unfavorable over an extended period, multiple autocallable instruments may experience losses simultaneously and/or the reallocation across autocallable instruments may result in suboptimal entry points during rapidly changing markets. A portfolio of autocallables providing exposure to the same Underlying Asset may not be homogeneously affected by a change in that Underlying Asset price as the impact of such change may depend on the tenor of each autocallable. Depending on market conditions, requests to create and/or redeem shares in the Fund may result in the average tenor of the portfolio of autocallables held by the Fund to deviate from the average tenor the Fund intends to achieve.
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| GraniteShares Autocallable RGTI ETF | Concentration Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Concentration Risk. To the extent that the Underlying Asset concentrates its investments in a particular industry, the Fund will be subject to the risks associated with that industry.
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| GraniteShares Autocallable RGTI ETF | ETF Risks [Member] | |||||||||||||||||||
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| Risk [Text Block] | ETF Risks.
Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that are authorized to purchase and redeem Shares directly from the Fund (known as “Authorized Participants” or “APs”). There are a limited number of financial institutions that post collateral for certain trades on an agency basis (i.e. on behalf of other market participants). In such circumstances, the Fund’s market price may be significantly different than its underlying net asset value. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services; or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
Cash Redemption Risk. The Fund currently expects to effect a significant portion of its creations and redemptions for cash, rather than in-kind securities. Paying redemption proceeds in cash rather than through in-kind delivery of portfolio securities may require the Fund to dispose of or sell portfolio securities or other assets at an inopportune time to obtain the cash needed to meet redemption orders. This may cause the Fund to sell a security and recognize a capital gain or loss that might not have been incurred if it had made a redemption in-kind. As a result, the Fund may pay out higher or lower annual capital gains distributions than ETFs that redeem in-kind. The use of cash creations and redemptions may also cause the Fund’s Shares to trade in the market at greater bid-ask spreads or greater premiums or discounts to the Fund’s NAV. Furthermore, the Fund may not be able to execute cash transactions for creation and redemption purposes at the same price used to determine the Fund’s NAV. To the extent that the maximum additional charge for creation or redemption transactions is insufficient to cover the execution shortfall, the Fund’s performance could be negatively impacted.
Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid-ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.
Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant.
Trading. Although Shares are listed on a national securities exchange, such as The Nasdaq Stock Market, LLC (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that an active trading market for the Shares will develop or be maintained or that the Shares will trade with any volume, or at all, on any stock exchange. This risk may be greater for the Fund as it seeks to have exposure to a single underlying stock as opposed to a more diverse portfolio like a traditional pooled investment. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares. Shares trade on the Exchange at a market price that may be below, at or above the Fund’s NAV. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged. In the event of an unscheduled market close for options contracts that reference a single stock, such as the Underlying Asset’s securities being halted or a market wide closure, settlement prices will be determined by the procedures of the listing exchange of the options contracts. As a result, the Fund could be adversely affected and be unable to implement its investment strategies in the event of an unscheduled closing.
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| GraniteShares Autocallable RGTI ETF | High Portfolio Turnover Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | High Portfolio Turnover Risk. The Fund may actively and frequently trade all or a significant portion of the Fund’s holdings. A high portfolio turnover rate increases transaction costs, which may increase the Fund’s expenses. Frequent trading may also cause adverse tax consequences for investors in the Fund due to an increase in short-term capital gains.
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| GraniteShares Autocallable RGTI ETF | Inflation Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the present value of the Fund’s assets and distributions, if any, may decline.
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| GraniteShares Autocallable RGTI ETF | Liquidity Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Liquidity Risk. Some securities held by the Fund, including options contracts, may be difficult to sell or be illiquid, particularly during times of market turmoil. This risk is greater for the Fund as it will hold options contracts on a single security, and not a broader range of options contracts. Markets for securities or financial instruments could be disrupted by a number of events, including, but not limited to, an economic crisis, natural disasters, epidemics/pandemics, new legislation or regulatory changes inside or outside the United States. Illiquid securities may be difficult to value, especially in changing or volatile markets. If the Fund is forced to sell an illiquid security at an unfavorable time or price, the Fund may be adversely impacted. Certain market conditions or restrictions, such as market rules related to short sales, may prevent the Fund from limiting losses, realizing gains or achieving a high correlation with the Underlying Asset. There is no assurance that a security that is deemed liquid when purchased will continue to be liquid. Market illiquidity may cause losses for the Fund.
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| GraniteShares Autocallable RGTI ETF | Management Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Management Risk. The Fund is subject to management risk because it is an actively managed portfolio. In managing the Fund’s investment portfolio, the portfolio managers will apply investment techniques and risk analyses that may not produce the desired result. There can be no guarantee that the Fund will meet its investment objective.
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| GraniteShares Autocallable RGTI ETF | Money Market Instrument Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Repurchase agreements are contracts in which a seller of securities agrees to buy the securities back at a specified time and price. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments, including money market funds, may lose money through fees or other means.
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| GraniteShares Autocallable RGTI ETF | New Fund Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | New Fund Risk. The Fund is a recently organized management investment company with no operating history. As a result, prospective investors do not have a track record or history on which to base their investment decisions.
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| GraniteShares Autocallable RGTI ETF | Non-Diversification Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Non-Diversification Risk. Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer or a smaller number of issuers than if it was a diversified fund. As a result, a decline in the value of an investment in a single issuer or a smaller number of issuers could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio.
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| GraniteShares Autocallable RGTI ETF | Operational Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Operational Risk. The Fund is subject to risks arising from various operational factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund relies on third-parties for a range of services, including custody. Any delay or failure relating to engaging or maintaining such service providers may affect the Fund’s ability to meet its investment objective. Although the Fund and the Adviser seek to reduce these operational risks through controls and procedures, there is no way to completely protect against such risks.
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| GraniteShares Autocallable RGTI ETF | Recent Market Events Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Recent Market Events Risk. U.S. and international markets have experienced significant periods of volatility in recent years due to a number of economic, political and global macro factors, including uncertainty regarding interest rates and inflation, rising government debt in the U.S. and elsewhere, political events, changes in trade policy and armed conflict. Public health emergencies, such as the COVID-19 pandemic, have in the past caused, and may in the future cause, disruptions to business operations and supply chains, reduced consumer demand and significant market volatility. Armed conflict, including the conflict between Russia and Ukraine and conflicts in the Middle East, has caused, and could continue to cause, loss of life and severe adverse effects on regional and global economies and on the markets for certain securities and commodities. The U.S., the European Union and other countries have imposed, and may impose additional, sanctions and other restrictive measures on certain countries, individuals and companies, which could adversely affect the issuers, markets and economies concerned. In addition, the U.S. has imposed, and may continue to impose, tariffs and other trade barriers, and other countries have imposed or may impose retaliatory measures. Trade disputes between the U.S. and other countries could result in additional tariffs, trade barriers and/or investment restrictions. These and other events could adversely affect the Fund’s performance, and their duration and full effects cannot be predicted.
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| GraniteShares Autocallable RGTI ETF | Single Issuer Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Single Issuer Risk. Issuer-specific attributes may cause an investment in the Fund to be more volatile than a traditional pooled investment vehicle which diversifies risk or the market generally. The value of the Fund, which focuses on an individual security (the Underlying Asset), may be more volatile than a traditional pooled investment or the market as a whole and may perform differently from the value of a traditional pooled investment or the market as a whole.
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| GraniteShares Autocallable RGTI ETF | Tax Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Tax Risk. The Fund intends to elect and to qualify each year to be treated as a RIC under Subchapter M of the Code. As a RIC, the Fund will not be subject to U.S. federal income tax on the portion of its net investment income and net capital gain that it distributes to Shareholders, provided that it satisfies certain requirements of the Code. If the Fund does not qualify as a RIC for any taxable year and certain relief provisions are not available, the Fund’s taxable income will be subject to tax at the Fund level and to a further tax at the shareholder level when such income is distributed. To comply with the asset diversification test applicable to a RIC, the Fund will attempt to ensure that the value of the derivatives it holds never exceed 25% of the total value of Fund assets at the close of any quarter. If the Fund’s investments in the derivatives were to exceed 25% of the Fund’s total assets at the end of a tax quarter, the Fund, generally, has a grace period to cure such lack of compliance. If the Fund fails to timely cure, it may no longer be eligible to be treated as a RIC. In addition, distributions received by the Fund from the Underlying Asset may generate “bad income” that could prevent the Fund from meeting the “Income Requirement” of Subchapter M of the Code, which may cause the Fund to fail to qualify as a RIC. The Fund intends to treat any income it may derive from the options and swap contracts as “qualifying income” under the provisions of the Code applicable to RICs. If the income is not qualifying income the Fund may lose its status as a RIC. The Fund will, for each year, distribute substantially all of its net investment income and net capital gains.
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| GraniteShares Autocallable RGTI ETF | Investing In U.S. Equities Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Investing in U.S. Equities Risk. Investing in U.S. issuers subjects the Fund to legal, regulatory, political, currency, security, and economic risks that are specific to the U.S. Certain changes in the U.S., such as a weakening of the U.S. economy or a decline in its financial markets, may have an adverse effect on U.S. issuers.
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| GraniteShares Autocallable RGTI ETF | Affiliated Etfs Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Affiliated ETFs Risk. The Fund may invest in equity securities of other ETFs for which the Adviser serves as investment adviser. It is possible that a conflict of interest may arise. Additionally, to the extent the Fund invests in the securities of another affiliated ETF, the Fund will be subject to the investment risks of the ETF. Shareholders of the Fund are subject to duplicative expenses to the extent of the Fund’s investment in any affiliated ETF. Finally, the shares of the ETFs in which the Fund may invest will be listed on a national securities exchange and the Fund will purchase or sell these shares on the secondary market at its current market price, which may be more or less than its net asset value per share.
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| GraniteShares Autocallable RGTI ETF | Box Spread E T F Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Box Spread ETF Risk. The Fund may invest in LBOX, an affiliated ETF advised by GraniteShares Advisors LLC, the Fund’s investment adviser, that employs a market-neutral box spread strategy to generate short-term, fixed-income-like returns. Box spread positions involve simultaneous long and short synthetic options positions on the same reference asset and are structured to capture an implied financing rate. While box spreads are designed to be market-neutral and to generate a return approximating prevailing short-term interest rates, they are subject to execution risk, counterparty risk with respect to the options positions, and the risk that the implied financing rate embedded in the box spread diverges from prevailing market rates in periods of market stress. The Fund’s investments in LBOX are made pursuant to Section 12(d)(1)(G) of the 1940 Act, which imposes no percentage-of-assets limits on the Fund’s investment in an exchange-traded fund. Accordingly, the Fund could, at any time, hold a material allocation in LBOX. The Fund’s adviser faces a conflict of interest in allocating Fund assets to an affiliated fund such as LBOX; see “Affiliated ETFs Risk.”
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| GraniteShares Autocallable RGTI ETF | U.S. Government And U.S. Agency Obligations Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | U.S. Government and U.S. Agency Obligations Risk. The Fund may invest in securities issued by the U.S. government or its agencies or instrumentalities. U.S. Government obligations include securities issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, such as the U.S. Treasury. Payment of principal and interest on U.S. Government obligations may be backed by the full faith and credit of the United States or may be backed solely by the issuing or guaranteeing agency or instrumentality itself. In the latter case, the investor must look principally to the agency or instrumentality issuing or guaranteeing the obligation for ultimate repayment, which agency or instrumentality may be privately owned. There can be no assurance that the U.S. Government would provide financial support to its agencies or instrumentalities (including government-sponsored enterprises) where it is not obligated to do so.
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| GraniteShares Autocallable RGTI ETF | Fixed Income Securities Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Fixed Income Securities Risk. The market value of Fixed Income Securities will change in response to interest rate changes and other factors, such as changes in the effective maturities and credit ratings of fixed income investments. During periods of falling interest rates, the values of outstanding Fixed Income Securities and related financial instruments generally rise. Conversely, during periods of rising interest rates, the values of such securities and related financial instruments generally decline. Fixed Income Securities are also subject to credit risk.
Investments in Fixed Income Securities may also involve the following risks, depending on the instrument involved:
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| GraniteShares Autocallable SMCI ETF | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | PRINCIPAL RISKS OF INVESTING IN THE FUND
The principal risks of investing in the Fund are summarized below. As with any investment, there is a risk that you could lose all or a portion of your investment in the Fund. Each risk summarized below is considered a “principal risk” of investing in the Fund, regardless of the order in which it appears. Some or all of these risks may adversely affect the Fund’s net asset value per share (“NAV”), trading price, yield, total return and/or ability to meet its investment objectives. For more information about the risks of investing in the Fund, see the section in the Fund’s Prospectus titled “Additional Information About the Fund — Principal Risks of Investing in the Fund.”
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| GraniteShares Autocallable SMCI ETF | Underlying Asset Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Underlying Asset Risk. The performance of the Underlying Asset, and consequently the Fund’s performance, is subject to the risks of the software and information technology industry. The Underlying Asset is subject to many risks that can negatively impact its revenue and viability including, but are not limited to price volatility risk, management risk, inflation risk, global economic risk, growth risk, supply and demand risk, operations risk, regulatory risk, environmental risk, terrorism risk and the risk of natural disasters. The Underlying Asset performance may be affected by global markets and demand for its products and services, its ability to develop new products and services, inventory levels, supply chain issues, the performance of third-party software developers, system and network failures, privacy and cybersecurity breaches and changes in international and government regulations. Information technology companies are heavily dependent on patent and intellectual property rights, the loss or impairment of which may adversely affect profitability. Additionally, companies in the information technology industry may face dramatic and often unpredictable changes in growth rates and competition for the services of qualified personnel.
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| GraniteShares Autocallable SMCI ETF | Derivatives Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Derivatives Risk. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds, interest rates or indexes. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other ordinary investments, including risk related to the market, imperfect correlation with underlying investments, higher price volatility, lack of availability, counterparty risk, liquidity, valuation and legal restrictions. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. The use of derivatives may result in larger losses or smaller gains than directly investing in securities. When the Fund uses derivatives, there may be an imperfect correlation between the value of the Underlying Asset and the derivative, which may prevent the Fund from achieving its investment objectives. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of those amounts initially invested. In addition, the Fund’s investments in derivatives are subject to the following risks:
Options Contracts. The use of options contracts involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which are affected by fiscal and monetary policies and by national and international political, changes in the actual or implied volatility or the reference asset, the time remaining until the expiration of the option contract and economic events. For the Fund, in particular, the value of the options contracts in which it invests is substantially influenced by the value of the Underlying Asset. Selling put options exposes the Fund to the risk of potential loss if the market value of the Underlying Asset falls below the strike price before the option expires. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to such date, the value of an option generally does not increase or decrease at the same rate at the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the underlying instrument, and there may at times not be a liquid secondary market for certain options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. Additionally, the Fund’s practice of “rolling” may cause the Fund to experience losses if the expiring contracts do not generate proceeds enough to cover the costs of entering into new options contracts. Rolling refers to the practice of closing out one options position and opening another with a different expiration date and/or a different strike price. Further, if an option is exercised, the seller (writer) of a put option is obligated to purchase the underlying asset at the strike price, which can result in significant financial and regulatory obligations for the Fund if the market value of the asset has fallen substantially. Furthermore, when the Fund seeks to trade out of puts, especially near expiration, there is an added risk that the Fund may be required to allocate resources unexpectedly to fulfill these obligations. This potential exposure to physical settlement can significantly impact the Fund’s liquidity and market exposure, particularly in volatile market conditions.
Swap Risk: Swaps are subject to tracking risk because they may not be perfect substitutes for the instruments they are intended to hedge or replace. Over the counter swaps are subject to counterparty default. Leverage inherent in derivatives will tend to magnify the Fund’s losses. The swap agreements may reference standardized exchange-traded, FLEX, European Style or American Style put options contracts that are based on the values of the price returns of the Underlying Asset. that generate specific risks.
Counterparty Risk. Counterparty risk is the risk that a counterparty to a financial instrument held by the Fund or by a special purpose or structured vehicle invested in by the Fund may become insolvent or otherwise fail to perform its obligations, and the Fund may obtain no or limited recovery of its investment, and any recovery may be significantly delayed.
Over-the-Counter Market Risk. Securities and options traded in over-the-counter markets may trade less frequently and in limited volumes and thus exhibit more volatility and liquidity risk, and the prices paid by the Fund in over-the-counter transactions may include an undisclosed dealer markup. The Fund is also exposed to default by the over-the-counter option writer who may be unwilling or unable to perform its contractual obligations to the Fund.
In addition, a counterparty (the other party to a transaction or an agreement or the party with whom the Fund executes transactions) to a transaction (including repurchase transaction) with the Fund may be unable or unwilling to make timely principal, interest or settlement payments, or otherwise honor its obligations.
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| GraniteShares Autocallable SMCI ETF | Autocallable Structure Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Autocallable Structure Risk. The Fund’s returns are correlated to the performance of a theoretical portfolio of autocallables. Autocallables have specific structural features that may be unfamiliar to many investors:
Contingent Income Risk. Coupon payments from autocallables are not guaranteed and will not be made if the Underlying Asset falls below the Coupon Barrier on observation dates. This means the Fund may generate significantly less income than anticipated during market downturns. The expected absence of future coupon payments over the term of an autocallable could materially affect its value.
Early Redemption Risk. Autocallables may be called before their scheduled maturity if the Underlying Asset reaches or exceeds the Autocallable Barrier on observation dates. This automatic early redemption could force reinvestment of that portion of the portfolio at lower rates if market yields have declined.
Barrier Risk. If the Underlying Asset falls below the Maturity Barrier at the maturity of an autocallable, that portion of the portfolio will be fully exposed to the negative performance of the Underlying Asset from its initial level. For example, if the Underlying Asset has declined 45% at maturity of a particular autocallable, the portfolio allocated to that autocallable would lose 45% of its value. This conditional protection creates a binary outcome that can result in sudden, significant losses if barriers are breached.
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| GraniteShares Autocallable SMCI ETF | Calculation Methodology Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Calculation Methodology Risk. Autocallables rely on complex calculation methodologies that may not perform as expected under certain market conditions.
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| GraniteShares Autocallable SMCI ETF | Distribution Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective, the Fund seeks to provide current monthly income. There is no assurance that the Fund will make a distribution in any given month. If the Fund makes distributions, the amounts of such distributions will likely vary greatly from one distribution to the next. Additionally, the monthly distributions, if any, may consist of returns of capital, which would decrease the Fund’s NAV and trading price over time. As a result, an investor may suffer significant losses to their investment.
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| GraniteShares Autocallable SMCI ETF | NAV Erosion Risk Due to Distributions [Member] | |||||||||||||||||||
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| GraniteShares Autocallable SMCI ETF | Option Market Liquidity Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Option Market Liquidity Risk. Liquidity risk exists when particular investments are difficult to purchase or sell. The Fund’s investments in illiquid investments may reduce the returns of the Fund because it may be unable to sell the illiquid investments at an advantageous time or price.
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| GraniteShares Autocallable SMCI ETF | Laddered Portfolio Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Laddered Portfolio Risk. A laddered portfolio strategy may not perform as expected if market conditions remain unfavorable over an extended period, multiple autocallable instruments may experience losses simultaneously and/or the reallocation across autocallable instruments may result in suboptimal entry points during rapidly changing markets. A portfolio of autocallables providing exposure to the same Underlying Asset may not be homogeneously affected by a change in that Underlying Asset price as the impact of such change may depend on the tenor of each autocallable. Depending on market conditions, requests to create and/or redeem shares in the Fund may result in the average tenor of the portfolio of autocallables held by the Fund to deviate from the average tenor the Fund intends to achieve.
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| GraniteShares Autocallable SMCI ETF | Concentration Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Concentration Risk. To the extent that the Underlying Asset concentrates its investments in a particular industry, the Fund will be subject to the risks associated with that industry.
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| GraniteShares Autocallable SMCI ETF | ETF Risks [Member] | |||||||||||||||||||
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| Risk [Text Block] | ETF Risks.
Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that are authorized to purchase and redeem Shares directly from the Fund (known as “Authorized Participants” or “APs”). There are a limited number of financial institutions that post collateral for certain trades on an agency basis (i.e. on behalf of other market participants). In such circumstances, the Fund’s market price may be significantly different than its underlying net asset value. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services; or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
Cash Redemption Risk. The Fund currently expects to effect a significant portion of its creations and redemptions for cash, rather than in-kind securities. Paying redemption proceeds in cash rather than through in-kind delivery of portfolio securities may require the Fund to dispose of or sell portfolio securities or other assets at an inopportune time to obtain the cash needed to meet redemption orders. This may cause the Fund to sell a security and recognize a capital gain or loss that might not have been incurred if it had made a redemption in-kind. As a result, the Fund may pay out higher or lower annual capital gains distributions than ETFs that redeem in-kind. The use of cash creations and redemptions may also cause the Fund’s Shares to trade in the market at greater bid-ask spreads or greater premiums or discounts to the Fund’s NAV. Furthermore, the Fund may not be able to execute cash transactions for creation and redemption purposes at the same price used to determine the Fund’s NAV. To the extent that the maximum additional charge for creation or redemption transactions is insufficient to cover the execution shortfall, the Fund’s performance could be negatively impacted.
Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid-ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.
Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant.
Trading. Although Shares are listed on a national securities exchange, such as The Nasdaq Stock Market, LLC (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that an active trading market for the Shares will develop or be maintained or that the Shares will trade with any volume, or at all, on any stock exchange. This risk may be greater for the Fund as it seeks to have exposure to a single underlying stock as opposed to a more diverse portfolio like a traditional pooled investment. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares. Shares trade on the Exchange at a market price that may be below, at or above the Fund’s NAV. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged. In the event of an unscheduled market close for options contracts that reference a single stock, such as the Underlying Asset’s securities being halted or a market wide closure, settlement prices will be determined by the procedures of the listing exchange of the options contracts. As a result, the Fund could be adversely affected and be unable to implement its investment strategies in the event of an unscheduled closing.
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| GraniteShares Autocallable SMCI ETF | High Portfolio Turnover Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | High Portfolio Turnover Risk. The Fund may actively and frequently trade all or a significant portion of the Fund’s holdings. A high portfolio turnover rate increases transaction costs, which may increase the Fund’s expenses. Frequent trading may also cause adverse tax consequences for investors in the Fund due to an increase in short-term capital gains.
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| GraniteShares Autocallable SMCI ETF | Inflation Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the present value of the Fund’s assets and distributions, if any, may decline.
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| GraniteShares Autocallable SMCI ETF | Liquidity Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Liquidity Risk. Some securities held by the Fund, including options contracts, may be difficult to sell or be illiquid, particularly during times of market turmoil. This risk is greater for the Fund as it will hold options contracts on a single security, and not a broader range of options contracts. Markets for securities or financial instruments could be disrupted by a number of events, including, but not limited to, an economic crisis, natural disasters, epidemics/pandemics, new legislation or regulatory changes inside or outside the United States. Illiquid securities may be difficult to value, especially in changing or volatile markets. If the Fund is forced to sell an illiquid security at an unfavorable time or price, the Fund may be adversely impacted. Certain market conditions or restrictions, such as market rules related to short sales, may prevent the Fund from limiting losses, realizing gains or achieving a high correlation with the Underlying Asset. There is no assurance that a security that is deemed liquid when purchased will continue to be liquid. Market illiquidity may cause losses for the Fund.
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| GraniteShares Autocallable SMCI ETF | Management Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Management Risk. The Fund is subject to management risk because it is an actively managed portfolio. In managing the Fund’s investment portfolio, the portfolio managers will apply investment techniques and risk analyses that may not produce the desired result. There can be no guarantee that the Fund will meet its investment objective.
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| GraniteShares Autocallable SMCI ETF | Money Market Instrument Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Repurchase agreements are contracts in which a seller of securities agrees to buy the securities back at a specified time and price. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments, including money market funds, may lose money through fees or other means.
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| GraniteShares Autocallable SMCI ETF | New Fund Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | New Fund Risk. The Fund is a recently organized management investment company with limited operating history. As a result, prospective investors do not have a track record or history on which to base their investment decisions.
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| GraniteShares Autocallable SMCI ETF | Non-Diversification Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Non-Diversification Risk. Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer or a smaller number of issuers than if it was a diversified fund. As a result, a decline in the value of an investment in a single issuer or a smaller number of issuers could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio.
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| GraniteShares Autocallable SMCI ETF | Operational Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Operational Risk. The Fund is subject to risks arising from various operational factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund relies on third-parties for a range of services, including custody. Any delay or failure relating to engaging or maintaining such service providers may affect the Fund’s ability to meet its investment objective. Although the Fund and the Adviser seek to reduce these operational risks through controls and procedures, there is no way to completely protect against such risks.
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| GraniteShares Autocallable SMCI ETF | Recent Market Events Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Recent Market Events Risk. U.S. and international markets have experienced significant periods of volatility in recent years due to a number of economic, political and global macro factors, including uncertainty regarding interest rates and inflation, rising government debt in the U.S. and elsewhere, political events, changes in trade policy and armed conflict. Public health emergencies, such as the COVID-19 pandemic, have in the past caused, and may in the future cause, disruptions to business operations and supply chains, reduced consumer demand and significant market volatility. Armed conflict, including the conflict between Russia and Ukraine and conflicts in the Middle East, has caused, and could continue to cause, loss of life and severe adverse effects on regional and global economies and on the markets for certain securities and commodities. The U.S., the European Union and other countries have imposed, and may impose additional, sanctions and other restrictive measures on certain countries, individuals and companies, which could adversely affect the issuers, markets and economies concerned. In addition, the U.S. has imposed, and may continue to impose, tariffs and other trade barriers, and other countries have imposed or may impose retaliatory measures. Trade disputes between the U.S. and other countries could result in additional tariffs, trade barriers and/or investment restrictions. These and other events could adversely affect the Fund’s performance, and their duration and full effects cannot be predicted.
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| GraniteShares Autocallable SMCI ETF | Single Issuer Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Single Issuer Risk. Issuer-specific attributes may cause an investment in the Fund to be more volatile than a traditional pooled investment vehicle which diversifies risk or the market generally. The value of the Fund, which focuses on an individual security (the Underlying Asset), may be more volatile than a traditional pooled investment or the market as a whole and may perform differently from the value of a traditional pooled investment or the market as a whole.
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| GraniteShares Autocallable SMCI ETF | Tax Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Tax Risk. The Fund intends to elect and to qualify each year to be treated as a RIC under Subchapter M of the Code. As a RIC, the Fund will not be subject to U.S. federal income tax on the portion of its net investment income and net capital gain that it distributes to Shareholders, provided that it satisfies certain requirements of the Code. If the Fund does not qualify as a RIC for any taxable year and certain relief provisions are not available, the Fund’s taxable income will be subject to tax at the Fund level and to a further tax at the shareholder level when such income is distributed. To comply with the asset diversification test applicable to a RIC, the Fund will attempt to ensure that the value of the derivatives it holds never exceed 25% of the total value of Fund assets at the close of any quarter. If the Fund’s investments in the derivatives were to exceed 25% of the Fund’s total assets at the end of a tax quarter, the Fund, generally, has a grace period to cure such lack of compliance. If the Fund fails to timely cure, it may no longer be eligible to be treated as a RIC. In addition, distributions received by the Fund from the Underlying Asset may generate “bad income” that could prevent the Fund from meeting the “Income Requirement” of Subchapter M of the Code, which may cause the Fund to fail to qualify as a RIC. The Fund intends to treat any income it may derive from the options and swap contracts as “qualifying income” under the provisions of the Code applicable to RICs. If the income is not qualifying income the Fund may lose its status as a RIC. The Fund will, for each year, distribute substantially all of its net investment income and net capital gains.
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| GraniteShares Autocallable SMCI ETF | Investing In U.S. Equities Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Investing in U.S. Equities Risk. Investing in U.S. issuers subjects the Fund to legal, regulatory, political, currency, security, and economic risks that are specific to the U.S. Certain changes in the U.S., such as a weakening of the U.S. economy or a decline in its financial markets, may have an adverse effect on U.S. issuers.
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| GraniteShares Autocallable SMCI ETF | Affiliated Etfs Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Affiliated ETFs Risk. The Fund may invest in equity securities of other ETFs for which the Adviser serves as investment adviser. It is possible that a conflict of interest may arise. Additionally, to the extent the Fund invests in the securities of another affiliated ETF, the Fund will be subject to the investment risks of the ETF. Shareholders of the Fund are subject to duplicative expenses to the extent of the Fund’s investment in any affiliated ETF. Finally, the shares of the ETFs in which the Fund may invest will be listed on a national securities exchange and the Fund will purchase or sell these shares on the secondary market at its current market price, which may be more or less than its net asset value per share.
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| GraniteShares Autocallable SMCI ETF | Box Spread E T F Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Box Spread ETF Risk. The Fund may invest in LBOX, an affiliated ETF advised by GraniteShares Advisors LLC, the Fund’s investment adviser, that employs a market-neutral box spread strategy to generate short-term, fixed-income-like returns. Box spread positions involve simultaneous long and short synthetic options positions on the same reference asset and are structured to capture an implied financing rate. While box spreads are designed to be market-neutral and to generate a return approximating prevailing short-term interest rates, they are subject to execution risk, counterparty risk with respect to the options positions, and the risk that the implied financing rate embedded in the box spread diverges from prevailing market rates in periods of market stress. The Fund’s investments in LBOX are made pursuant to Section 12(d)(1)(G) of the 1940 Act, which imposes no percentage-of-assets limits on the Fund’s investment in an exchange-traded fund. Accordingly, the Fund could, at any time, hold a material allocation in LBOX. The Fund’s adviser faces a conflict of interest in allocating Fund assets to an affiliated fund such as LBOX; see “Affiliated ETFs Risk.”
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| GraniteShares Autocallable SMCI ETF | U.S. Government And U.S. Agency Obligations Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | U.S. Government and U.S. Agency Obligations Risk. The Fund may invest in securities issued by the U.S. government or its agencies or instrumentalities. U.S. Government obligations include securities issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, such as the U.S. Treasury. Payment of principal and interest on U.S. Government obligations may be backed by the full faith and credit of the United States or may be backed solely by the issuing or guaranteeing agency or instrumentality itself. In the latter case, the investor must look principally to the agency or instrumentality issuing or guaranteeing the obligation for ultimate repayment, which agency or instrumentality may be privately owned. There can be no assurance that the U.S. Government would provide financial support to its agencies or instrumentalities (including government-sponsored enterprises) where it is not obligated to do so.
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| GraniteShares Autocallable SMCI ETF | Fixed Income Securities Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Fixed Income Securities Risk. The market value of Fixed Income Securities will change in response to interest rate changes and other factors, such as changes in the effective maturities and credit ratings of fixed income investments. During periods of falling interest rates, the values of outstanding Fixed Income Securities and related financial instruments generally rise. Conversely, during periods of rising interest rates, the values of such securities and related financial instruments generally decline. Fixed Income Securities are also subject to credit risk.
Investments in Fixed Income Securities may also involve the following risks, depending on the instrument involved:
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| GraniteShares Autocallable SMR ETF | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | PRINCIPAL RISKS OF INVESTING IN THE FUND
The principal risks of investing in the Fund are summarized below. As with any investment, there is a risk that you could lose all or a portion of your investment in the Fund. Each risk summarized below is considered a “principal risk” of investing in the Fund, regardless of the order in which it appears. Some or all of these risks may adversely affect the Fund’s net asset value per share (“NAV”), trading price, yield, total return and/or ability to meet its investment objectives. For more information about the risks of investing in the Fund, see the section in the Fund’s Prospectus titled “Additional Information About the Fund — Principal Risks of Investing in the Fund.”
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| GraniteShares Autocallable SMR ETF | Underlying Asset Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Underlying Asset Risk. The performance of the Underlying Asset, and consequently the Fund’s performance, is subject to risks of the electrical equipment industry. The electrical equipment industry can be significantly affected by general economic trends, including employment, economic growth, interest rates, and changes in commodity prices. Electrical equipment companies are subject to the risks of technical obsolescence, and their profitability may be affected by government regulation and spending, import controls and worldwide competition. Companies in these industries also can be adversely affected by liability for environmental damage, depletion of resources, and mandated expenditures for safety and pollution control. These factors may result in a material adverse impact on the Fund’s portfolio securities and the performance of the Fund.
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| GraniteShares Autocallable SMR ETF | Derivatives Risk [Member] | |||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||
| Risk [Text Block] | Derivatives Risk. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds, interest rates or indexes. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other ordinary investments, including risk related to the market, imperfect correlation with underlying investments, higher price volatility, lack of availability, counterparty risk, liquidity, valuation and legal restrictions. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. The use of derivatives may result in larger losses or smaller gains than directly investing in securities. When the Fund uses derivatives, there may be an imperfect correlation between the value of the Underlying Asset and the derivative, which may prevent the Fund from achieving its investment objectives. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of those amounts initially invested. In addition, the Fund’s investments in derivatives are subject to the following risks:
Options Contracts. The use of options contracts involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which are affected by fiscal and monetary policies and by national and international political, changes in the actual or implied volatility or the reference asset, the time remaining until the expiration of the option contract and economic events. For the Fund, in particular, the value of the options contracts in which it invests is substantially influenced by the value of the Underlying Asset. Selling put options exposes the Fund to the risk of potential loss if the market value of the Underlying Asset falls below the strike price before the option expires. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to such date, the value of an option generally does not increase or decrease at the same rate at the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the underlying instrument, and there may at times not be a liquid secondary market for certain options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. Additionally, the Fund’s practice of “rolling” may cause the Fund to experience losses if the expiring contracts do not generate proceeds enough to cover the costs of entering into new options contracts. Rolling refers to the practice of closing out one options position and opening another with a different expiration date and/or a different strike price. Further, if an option is exercised, the seller (writer) of a put option is obligated to purchase the underlying asset at the strike price, which can result in significant financial and regulatory obligations for the Fund if the market value of the asset has fallen substantially. Furthermore, when the Fund seeks to trade out of puts, especially near expiration, there is an added risk that the Fund may be required to allocate resources unexpectedly to fulfill these obligations. This potential exposure to physical settlement can significantly impact the Fund’s liquidity and market exposure, particularly in volatile market conditions.
Swap Risk: Swaps are subject to tracking risk because they may not be perfect substitutes for the instruments they are intended to hedge or replace. Over the counter swaps are subject to counterparty default. Leverage inherent in derivatives will tend to magnify the Fund’s losses. The swap agreements may reference standardized exchange-traded, FLEX, European Style or American Style put options contracts that are based on the values of the price returns of the Underlying Asset. that generate specific risks.
Counterparty Risk. Counterparty risk is the risk that a counterparty to a financial instrument held by the Fund or by a special purpose or structured vehicle invested in by the Fund may become insolvent or otherwise fail to perform its obligations, and the Fund may obtain no or limited recovery of its investment, and any recovery may be significantly delayed.
Over-the-Counter Market Risk. Securities and options traded in over-the-counter markets may trade less frequently and in limited volumes and thus exhibit more volatility and liquidity risk, and the prices paid by the Fund in over-the-counter transactions may include an undisclosed dealer markup. The Fund is also exposed to default by the over-the-counter option writer who may be unwilling or unable to perform its contractual obligations to the Fund.
In addition, a counterparty (the other party to a transaction or an agreement or the party with whom the Fund executes transactions) to a transaction (including repurchase transaction) with the Fund may be unable or unwilling to make timely principal, interest or settlement payments, or otherwise honor its obligations.
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| GraniteShares Autocallable SMR ETF | Autocallable Structure Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Autocallable Structure Risk. The Fund’s returns are correlated to the performance of a theoretical portfolio of autocallables. Autocallables have specific structural features that may be unfamiliar to many investors:
Contingent Income Risk. Coupon payments from autocallables are not guaranteed and will not be made if the Underlying Asset falls below the Coupon Barrier on observation dates. This means the Fund may generate significantly less income than anticipated during market downturns. The expected absence of future coupon payments over the term of an autocallable could materially affect its value.
Early Redemption Risk. Autocallables may be called before their scheduled maturity if the Underlying Asset reaches or exceeds the Autocallable Barrier on observation dates. This automatic early redemption could force reinvestment of that portion of the portfolio at lower rates if market yields have declined.
Barrier Risk. If the Underlying Asset falls below the Maturity Barrier at the maturity of an autocallable, that portion of the portfolio will be fully exposed to the negative performance of the Underlying Asset from its initial level. For example, if the Underlying Asset has declined 45% at maturity of a particular autocallable, the portfolio allocated to that autocallable would lose 45% of its value. This conditional protection creates a binary outcome that can result in sudden, significant losses if barriers are breached.
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| GraniteShares Autocallable SMR ETF | Calculation Methodology Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Calculation Methodology Risk. Autocallables rely on complex calculation methodologies that may not perform as expected under certain market conditions.
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| GraniteShares Autocallable SMR ETF | Distribution Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective, the Fund seeks to provide current monthly income. There is no assurance that the Fund will make a distribution in any given month. If the Fund makes distributions, the amounts of such distributions will likely vary greatly from one distribution to the next. Additionally, the monthly distributions, if any, may consist of returns of capital, which would decrease the Fund’s NAV and trading price over time. As a result, an investor may suffer significant losses to their investment.
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| GraniteShares Autocallable SMR ETF | NAV Erosion Risk Due to Distributions [Member] | |||||||||||||||||||
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| GraniteShares Autocallable SMR ETF | Option Market Liquidity Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Option Market Liquidity Risk. Liquidity risk exists when particular investments are difficult to purchase or sell. The Fund’s investments in illiquid investments may reduce the returns of the Fund because it may be unable to sell the illiquid investments at an advantageous time or price.
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| GraniteShares Autocallable SMR ETF | Laddered Portfolio Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Laddered Portfolio Risk. A laddered portfolio strategy may not perform as expected if market conditions remain unfavorable over an extended period, multiple autocallable instruments may experience losses simultaneously and/or the reallocation across autocallable instruments may result in suboptimal entry points during rapidly changing markets. A portfolio of autocallables providing exposure to the same Underlying Asset may not be homogeneously affected by a change in that Underlying Asset price as the impact of such change may depend on the tenor of each autocallable. Depending on market conditions, requests to create and/or redeem shares in the Fund may result in the average tenor of the portfolio of autocallables held by the Fund to deviate from the average tenor the Fund intends to achieve.
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| GraniteShares Autocallable SMR ETF | Concentration Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Concentration Risk. To the extent that the Underlying Asset concentrates its investments in a particular industry, the Fund will be subject to the risks associated with that industry.
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| GraniteShares Autocallable SMR ETF | ETF Risks [Member] | |||||||||||||||||||
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| Risk [Text Block] | ETF Risks.
Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that are authorized to purchase and redeem Shares directly from the Fund (known as “Authorized Participants” or “APs”). There are a limited number of financial institutions that post collateral for certain trades on an agency basis (i.e. on behalf of other market participants). In such circumstances, the Fund’s market price may be significantly different than its underlying net asset value. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services; or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
Cash Redemption Risk. The Fund currently expects to effect a significant portion of its creations and redemptions for cash, rather than in-kind securities. Paying redemption proceeds in cash rather than through in-kind delivery of portfolio securities may require the Fund to dispose of or sell portfolio securities or other assets at an inopportune time to obtain the cash needed to meet redemption orders. This may cause the Fund to sell a security and recognize a capital gain or loss that might not have been incurred if it had made a redemption in-kind. As a result, the Fund may pay out higher or lower annual capital gains distributions than ETFs that redeem in-kind. The use of cash creations and redemptions may also cause the Fund’s Shares to trade in the market at greater bid-ask spreads or greater premiums or discounts to the Fund’s NAV. Furthermore, the Fund may not be able to execute cash transactions for creation and redemption purposes at the same price used to determine the Fund’s NAV. To the extent that the maximum additional charge for creation or redemption transactions is insufficient to cover the execution shortfall, the Fund’s performance could be negatively impacted.
Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid-ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.
Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant.
Trading. Although Shares are listed on a national securities exchange, such as The Nasdaq Stock Market, LLC (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that an active trading market for the Shares will develop or be maintained or that the Shares will trade with any volume, or at all, on any stock exchange. This risk may be greater for the Fund as it seeks to have exposure to a single underlying stock as opposed to a more diverse portfolio like a traditional pooled investment. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares. Shares trade on the Exchange at a market price that may be below, at or above the Fund’s NAV. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged. In the event of an unscheduled market close for options contracts that reference a single stock, such as the Underlying Asset’s securities being halted or a market wide closure, settlement prices will be determined by the procedures of the listing exchange of the options contracts. As a result, the Fund could be adversely affected and be unable to implement its investment strategies in the event of an unscheduled closing.
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| GraniteShares Autocallable SMR ETF | High Portfolio Turnover Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | High Portfolio Turnover Risk. The Fund may actively and frequently trade all or a significant portion of the Fund’s holdings. A high portfolio turnover rate increases transaction costs, which may increase the Fund’s expenses. Frequent trading may also cause adverse tax consequences for investors in the Fund due to an increase in short-term capital gains.
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| GraniteShares Autocallable SMR ETF | Inflation Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the present value of the Fund’s assets and distributions, if any, may decline.
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| GraniteShares Autocallable SMR ETF | Liquidity Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Liquidity Risk. Some securities held by the Fund, including options contracts, may be difficult to sell or be illiquid, particularly during times of market turmoil. This risk is greater for the Fund as it will hold options contracts on a single security, and not a broader range of options contracts. Markets for securities or financial instruments could be disrupted by a number of events, including, but not limited to, an economic crisis, natural disasters, epidemics/pandemics, new legislation or regulatory changes inside or outside the United States. Illiquid securities may be difficult to value, especially in changing or volatile markets. If the Fund is forced to sell an illiquid security at an unfavorable time or price, the Fund may be adversely impacted. Certain market conditions or restrictions, such as market rules related to short sales, may prevent the Fund from limiting losses, realizing gains or achieving a high correlation with the Underlying Asset. There is no assurance that a security that is deemed liquid when purchased will continue to be liquid. Market illiquidity may cause losses for the Fund.
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| GraniteShares Autocallable SMR ETF | Management Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Management Risk. The Fund is subject to management risk because it is an actively managed portfolio. In managing the Fund’s investment portfolio, the portfolio managers will apply investment techniques and risk analyses that may not produce the desired result. There can be no guarantee that the Fund will meet its investment objective.
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| GraniteShares Autocallable SMR ETF | Money Market Instrument Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Repurchase agreements are contracts in which a seller of securities agrees to buy the securities back at a specified time and price. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments, including money market funds, may lose money through fees or other means.
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| GraniteShares Autocallable SMR ETF | New Fund Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | New Fund Risk. The Fund is a recently organized management investment company with no operating history. As a result, prospective investors do not have a track record or history on which to base their investment decisions.
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| GraniteShares Autocallable SMR ETF | Non-Diversification Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Non-Diversification Risk. Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer or a smaller number of issuers than if it was a diversified fund. As a result, a decline in the value of an investment in a single issuer or a smaller number of issuers could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio.
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| GraniteShares Autocallable SMR ETF | Operational Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Operational Risk. The Fund is subject to risks arising from various operational factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund relies on third-parties for a range of services, including custody. Any delay or failure relating to engaging or maintaining such service providers may affect the Fund’s ability to meet its investment objective. Although the Fund and the Adviser seek to reduce these operational risks through controls and procedures, there is no way to completely protect against such risks.
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| GraniteShares Autocallable SMR ETF | Recent Market Events Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Recent Market Events Risk. U.S. and international markets have experienced significant periods of volatility in recent years due to a number of economic, political and global macro factors, including uncertainty regarding interest rates and inflation, rising government debt in the U.S. and elsewhere, political events, changes in trade policy and armed conflict. Public health emergencies, such as the COVID-19 pandemic, have in the past caused, and may in the future cause, disruptions to business operations and supply chains, reduced consumer demand and significant market volatility. Armed conflict, including the conflict between Russia and Ukraine and conflicts in the Middle East, has caused, and could continue to cause, loss of life and severe adverse effects on regional and global economies and on the markets for certain securities and commodities. The U.S., the European Union and other countries have imposed, and may impose additional, sanctions and other restrictive measures on certain countries, individuals and companies, which could adversely affect the issuers, markets and economies concerned. In addition, the U.S. has imposed, and may continue to impose, tariffs and other trade barriers, and other countries have imposed or may impose retaliatory measures. Trade disputes between the U.S. and other countries could result in additional tariffs, trade barriers and/or investment restrictions. These and other events could adversely affect the Fund’s performance, and their duration and full effects cannot be predicted.
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| GraniteShares Autocallable SMR ETF | Single Issuer Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Single Issuer Risk. Issuer-specific attributes may cause an investment in the Fund to be more volatile than a traditional pooled investment vehicle which diversifies risk or the market generally. The value of the Fund, which focuses on an individual security (the Underlying Asset), may be more volatile than a traditional pooled investment or the market as a whole and may perform differently from the value of a traditional pooled investment or the market as a whole.
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| GraniteShares Autocallable SMR ETF | Tax Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Tax Risk. The Fund intends to elect and to qualify each year to be treated as a RIC under Subchapter M of the Code. As a RIC, the Fund will not be subject to U.S. federal income tax on the portion of its net investment income and net capital gain that it distributes to Shareholders, provided that it satisfies certain requirements of the Code. If the Fund does not qualify as a RIC for any taxable year and certain relief provisions are not available, the Fund’s taxable income will be subject to tax at the Fund level and to a further tax at the shareholder level when such income is distributed. To comply with the asset diversification test applicable to a RIC, the Fund will attempt to ensure that the value of the derivatives it holds never exceed 25% of the total value of Fund assets at the close of any quarter. If the Fund’s investments in the derivatives were to exceed 25% of the Fund’s total assets at the end of a tax quarter, the Fund, generally, has a grace period to cure such lack of compliance. If the Fund fails to timely cure, it may no longer be eligible to be treated as a RIC. In addition, distributions received by the Fund from the Underlying Asset may generate “bad income” that could prevent the Fund from meeting the “Income Requirement” of Subchapter M of the Code, which may cause the Fund to fail to qualify as a RIC. The Fund intends to treat any income it may derive from the options and swap contracts as “qualifying income” under the provisions of the Code applicable to RICs. If the income is not qualifying income the Fund may lose its status as a RIC. The Fund will, for each year, distribute substantially all of its net investment income and net capital gains.
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| GraniteShares Autocallable SMR ETF | Investing In U.S. Equities Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Investing in U.S. Equities Risk. Investing in U.S. issuers subjects the Fund to legal, regulatory, political, currency, security, and economic risks that are specific to the U.S. Certain changes in the U.S., such as a weakening of the U.S. economy or a decline in its financial markets, may have an adverse effect on U.S. issuers.
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| GraniteShares Autocallable SMR ETF | Affiliated Etfs Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Affiliated ETFs Risk. The Fund may invest in equity securities of other ETFs for which the Adviser serves as investment adviser. It is possible that a conflict of interest may arise. Additionally, to the extent the Fund invests in the securities of another affiliated ETF, the Fund will be subject to the investment risks of the ETF. Shareholders of the Fund are subject to duplicative expenses to the extent of the Fund’s investment in any affiliated ETF. Finally, the shares of the ETFs in which the Fund may invest will be listed on a national securities exchange and the Fund will purchase or sell these shares on the secondary market at its current market price, which may be more or less than its net asset value per share.
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| GraniteShares Autocallable SMR ETF | Box Spread E T F Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Box Spread ETF Risk. The Fund may invest in LBOX, an affiliated ETF advised by GraniteShares Advisors LLC, the Fund’s investment adviser, that employs a market-neutral box spread strategy to generate short-term, fixed-income-like returns. Box spread positions involve simultaneous long and short synthetic options positions on the same reference asset and are structured to capture an implied financing rate. While box spreads are designed to be market-neutral and to generate a return approximating prevailing short-term interest rates, they are subject to execution risk, counterparty risk with respect to the options positions, and the risk that the implied financing rate embedded in the box spread diverges from prevailing market rates in periods of market stress. The Fund’s investments in LBOX are made pursuant to Section 12(d)(1)(G) of the 1940 Act, which imposes no percentage-of-assets limits on the Fund’s investment in an exchange-traded fund. Accordingly, the Fund could, at any time, hold a material allocation in LBOX. The Fund’s adviser faces a conflict of interest in allocating Fund assets to an affiliated fund such as LBOX; see “Affiliated ETFs Risk.”
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| GraniteShares Autocallable SMR ETF | U.S. Government And U.S. Agency Obligations Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | U.S. Government and U.S. Agency Obligations Risk. The Fund may invest in securities issued by the U.S. government or its agencies or instrumentalities. U.S. Government obligations include securities issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, such as the U.S. Treasury. Payment of principal and interest on U.S. Government obligations may be backed by the full faith and credit of the United States or may be backed solely by the issuing or guaranteeing agency or instrumentality itself. In the latter case, the investor must look principally to the agency or instrumentality issuing or guaranteeing the obligation for ultimate repayment, which agency or instrumentality may be privately owned. There can be no assurance that the U.S. Government would provide financial support to its agencies or instrumentalities (including government-sponsored enterprises) where it is not obligated to do so.
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| GraniteShares Autocallable SMR ETF | Fixed Income Securities Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Fixed Income Securities Risk. The market value of Fixed Income Securities will change in response to interest rate changes and other factors, such as changes in the effective maturities and credit ratings of fixed income investments. During periods of falling interest rates, the values of outstanding Fixed Income Securities and related financial instruments generally rise. Conversely, during periods of rising interest rates, the values of such securities and related financial instruments generally decline. Fixed Income Securities are also subject to credit risk.
Investments in Fixed Income Securities may also involve the following risks, depending on the instrument involved:
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| GraniteShares Autocallable TSLA ETF | |||||||||||||||||||
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| Risk [Text Block] | PRINCIPAL RISKS OF INVESTING IN THE FUND
The principal risks of investing in the Fund are summarized below. As with any investment, there is a risk that you could lose all or a portion of your investment in the Fund. Each risk summarized below is considered a “principal risk” of investing in the Fund, regardless of the order in which it appears. Some or all of these risks may adversely affect the Fund’s net asset value per share (“NAV”), trading price, yield, total return and/or ability to meet its investment objectives. For more information about the risks of investing in the Fund, see the section in the Fund’s Prospectus titled “Additional Information About the Fund — Principal Risks of Investing in the Fund.”
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| GraniteShares Autocallable TSLA ETF | Underlying Asset Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Underlying Asset Risk. The performance of the Underlying Asset, and consequently the Fund’s performance, is subject to risks of the automotive industry. The Underlying Asset is subject to many risks that can negatively impact its revenue and viability including, but are not limited to price volatility risk, management risk, inflation risk, global economic risk, growth risk, supply and demand risk, operations risk, regulatory risk, environmental risk, terrorism risk and the risk of natural disasters. The Underlying Asset performance may be affected by company’s ability to develop and launch new products, the growth of its sales and delivery capabilities, part supplier constraints or delays, consumer demand for electric vehicles and competition from existing, and competitors. Governmental policies affecting the automotive industry, such as taxes, tariffs, duties, subsidies, and import and export restrictions on automotive products can influence industry profitability. In addition, such companies must comply with environmental laws and regulations, for which there may be severe consequences for non-compliance. The Fund’s daily returns may be affected by many factors but will depend on the performance and volatility of the Underlying Asset.
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| GraniteShares Autocallable TSLA ETF | Derivatives Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Derivatives Risk. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds, interest rates or indexes. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other ordinary investments, including risk related to the market, imperfect correlation with underlying investments, higher price volatility, lack of availability, counterparty risk, liquidity, valuation and legal restrictions. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. The use of derivatives may result in larger losses or smaller gains than directly investing in securities. When the Fund uses derivatives, there may be an imperfect correlation between the value of the Underlying Asset and the derivative, which may prevent the Fund from achieving its investment objectives. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of those amounts initially invested. In addition, the Fund’s investments in derivatives are subject to the following risks:
Options Contracts. The use of options contracts involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which are affected by fiscal and monetary policies and by national and international political, changes in the actual or implied volatility or the reference asset, the time remaining until the expiration of the option contract and economic events. For the Fund, in particular, the value of the options contracts in which it invests is substantially influenced by the value of the Underlying Asset. Selling put options exposes the Fund to the risk of potential loss if the market value of the Underlying Asset falls below the strike price before the option expires. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to such date, the value of an option generally does not increase or decrease at the same rate at the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the underlying instrument, and there may at times not be a liquid secondary market for certain options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. Additionally, the Fund’s practice of “rolling” may cause the Fund to experience losses if the expiring contracts do not generate proceeds enough to cover the costs of entering into new options contracts. Rolling refers to the practice of closing out one options position and opening another with a different expiration date and/or a different strike price. Further, if an option is exercised, the seller (writer) of a put option is obligated to purchase the underlying asset at the strike price, which can result in significant financial and regulatory obligations for the Fund if the market value of the asset has fallen substantially. Furthermore, when the Fund seeks to trade out of puts, especially near expiration, there is an added risk that the Fund may be required to allocate resources unexpectedly to fulfill these obligations. This potential exposure to physical settlement can significantly impact the Fund’s liquidity and market exposure, particularly in volatile market conditions.
Swap Risk: Swaps are subject to tracking risk because they may not be perfect substitutes for the instruments they are intended to hedge or replace. Over the counter swaps are subject to counterparty default. Leverage inherent in derivatives will tend to magnify the Fund’s losses. The swap agreements may reference standardized exchange-traded, FLEX, European Style or American Style put options contracts that are based on the values of the price returns of the Underlying Asset. that generate specific risks.
Counterparty Risk. Counterparty risk is the risk that a counterparty to a financial instrument held by the Fund or by a special purpose or structured vehicle invested in by the Fund may become insolvent or otherwise fail to perform its obligations, and the Fund may obtain no or limited recovery of its investment, and any recovery may be significantly delayed.
Over-the-Counter Market Risk. Securities and options traded in over-the-counter markets may trade less frequently and in limited volumes and thus exhibit more volatility and liquidity risk, and the prices paid by the Fund in over-the-counter transactions may include an undisclosed dealer markup. The Fund is also exposed to default by the over-the-counter option writer who may be unwilling or unable to perform its contractual obligations to the Fund.
In addition, a counterparty (the other party to a transaction or an agreement or the party with whom the Fund executes transactions) to a transaction (including repurchase transaction) with the Fund may be unable or unwilling to make timely principal, interest or settlement payments, or otherwise honor its obligations.
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| GraniteShares Autocallable TSLA ETF | Autocallable Structure Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Autocallable Structure Risk. The Fund’s returns are correlated to the performance of a theoretical portfolio of autocallables. Autocallables have specific structural features that may be unfamiliar to many investors:
Contingent Income Risk. Coupon payments from autocallables are not guaranteed and will not be made if the Underlying Asset falls below the Coupon Barrier on observation dates. This means the Fund may generate significantly less income than anticipated during market downturns. The expected absence of future coupon payments over the term of an autocallable could materially affect its value.
Early Redemption Risk. Autocallables may be called before their scheduled maturity if the Underlying Asset reaches or exceeds the Autocallable Barrier on observation dates. This automatic early redemption could force reinvestment of that portion of the portfolio at lower rates if market yields have declined.
Barrier Risk. If the Underlying Asset falls below the Maturity Barrier at the maturity of an autocallable, that portion of the portfolio will be fully exposed to the negative performance of the Underlying Asset from its initial level. For example, if the Underlying Asset has declined 45% at maturity of a particular autocallable, the portfolio allocated to that autocallable would lose 45% of its value. This conditional protection creates a binary outcome that can result in sudden, significant losses if barriers are breached.
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| GraniteShares Autocallable TSLA ETF | Calculation Methodology Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Calculation Methodology Risk. Autocallables rely on complex calculation methodologies that may not perform as expected under certain market conditions.
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| GraniteShares Autocallable TSLA ETF | Distribution Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective, the Fund seeks to provide current monthly income. There is no assurance that the Fund will make a distribution in any given month. If the Fund makes distributions, the amounts of such distributions will likely vary greatly from one distribution to the next. Additionally, the monthly distributions, if any, may consist of returns of capital, which would decrease the Fund’s NAV and trading price over time. As a result, an investor may suffer significant losses to their investment.
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| GraniteShares Autocallable TSLA ETF | NAV Erosion Risk Due to Distributions [Member] | |||||||||||||||||||
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| GraniteShares Autocallable TSLA ETF | Option Market Liquidity Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Option Market Liquidity Risk. Liquidity risk exists when particular investments are difficult to purchase or sell. The Fund’s investments in illiquid investments may reduce the returns of the Fund because it may be unable to sell the illiquid investments at an advantageous time or price.
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| GraniteShares Autocallable TSLA ETF | Laddered Portfolio Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Laddered Portfolio Risk. A laddered portfolio strategy may not perform as expected if market conditions remain unfavorable over an extended period, multiple autocallable instruments may experience losses simultaneously and/or the reallocation across autocallable instruments may result in suboptimal entry points during rapidly changing markets. A portfolio of autocallables providing exposure to the same Underlying Asset may not be homogeneously affected by a change in that Underlying Asset price as the impact of such change may depend on the tenor of each autocallable. Depending on market conditions, requests to create and/or redeem shares in the Fund may result in the average tenor of the portfolio of autocallables held by the Fund to deviate from the average tenor the Fund intends to achieve.
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| GraniteShares Autocallable TSLA ETF | Concentration Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Concentration Risk. To the extent that the Underlying Asset concentrates its investments in a particular industry, the Fund will be subject to the risks associated with that industry.
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| GraniteShares Autocallable TSLA ETF | ETF Risks [Member] | |||||||||||||||||||
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| Risk [Text Block] | ETF Risks.
Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that are authorized to purchase and redeem Shares directly from the Fund (known as “Authorized Participants” or “APs”). There are a limited number of financial institutions that post collateral for certain trades on an agency basis (i.e. on behalf of other market participants). In such circumstances, the Fund’s market price may be significantly different than its underlying net asset value. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services; or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
Cash Redemption Risk. The Fund currently expects to effect a significant portion of its creations and redemptions for cash, rather than in-kind securities. Paying redemption proceeds in cash rather than through in-kind delivery of portfolio securities may require the Fund to dispose of or sell portfolio securities or other assets at an inopportune time to obtain the cash needed to meet redemption orders. This may cause the Fund to sell a security and recognize a capital gain or loss that might not have been incurred if it had made a redemption in-kind. As a result, the Fund may pay out higher or lower annual capital gains distributions than ETFs that redeem in-kind. The use of cash creations and redemptions may also cause the Fund’s Shares to trade in the market at greater bid-ask spreads or greater premiums or discounts to the Fund’s NAV. Furthermore, the Fund may not be able to execute cash transactions for creation and redemption purposes at the same price used to determine the Fund’s NAV. To the extent that the maximum additional charge for creation or redemption transactions is insufficient to cover the execution shortfall, the Fund’s performance could be negatively impacted.
Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid-ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.
Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant.
Trading. Although Shares are listed on a national securities exchange, such as The Nasdaq Stock Market, LLC (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that an active trading market for the Shares will develop or be maintained or that the Shares will trade with any volume, or at all, on any stock exchange. This risk may be greater for the Fund as it seeks to have exposure to a single underlying stock as opposed to a more diverse portfolio like a traditional pooled investment. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares. Shares trade on the Exchange at a market price that may be below, at or above the Fund’s NAV. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged. In the event of an unscheduled market close for options contracts that reference a single stock, such as the Underlying Asset’s securities being halted or a market wide closure, settlement prices will be determined by the procedures of the listing exchange of the options contracts. As a result, the Fund could be adversely affected and be unable to implement its investment strategies in the event of an unscheduled closing.
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| GraniteShares Autocallable TSLA ETF | High Portfolio Turnover Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | High Portfolio Turnover Risk. The Fund may actively and frequently trade all or a significant portion of the Fund’s holdings. A high portfolio turnover rate increases transaction costs, which may increase the Fund’s expenses. Frequent trading may also cause adverse tax consequences for investors in the Fund due to an increase in short-term capital gains.
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| GraniteShares Autocallable TSLA ETF | Inflation Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the present value of the Fund’s assets and distributions, if any, may decline.
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| GraniteShares Autocallable TSLA ETF | Liquidity Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Liquidity Risk. Some securities held by the Fund, including options contracts, may be difficult to sell or be illiquid, particularly during times of market turmoil. This risk is greater for the Fund as it will hold options contracts on a single security, and not a broader range of options contracts. Markets for securities or financial instruments could be disrupted by a number of events, including, but not limited to, an economic crisis, natural disasters, epidemics/pandemics, new legislation or regulatory changes inside or outside the United States. Illiquid securities may be difficult to value, especially in changing or volatile markets. If the Fund is forced to sell an illiquid security at an unfavorable time or price, the Fund may be adversely impacted. Certain market conditions or restrictions, such as market rules related to short sales, may prevent the Fund from limiting losses, realizing gains or achieving a high correlation with the Underlying Asset. There is no assurance that a security that is deemed liquid when purchased will continue to be liquid. Market illiquidity may cause losses for the Fund.
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| GraniteShares Autocallable TSLA ETF | Management Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Management Risk. The Fund is subject to management risk because it is an actively managed portfolio. In managing the Fund’s investment portfolio, the portfolio managers will apply investment techniques and risk analyses that may not produce the desired result. There can be no guarantee that the Fund will meet its investment objective.
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| GraniteShares Autocallable TSLA ETF | Money Market Instrument Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Repurchase agreements are contracts in which a seller of securities agrees to buy the securities back at a specified time and price. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments, including money market funds, may lose money through fees or other means.
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| GraniteShares Autocallable TSLA ETF | New Fund Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | New Fund Risk. The Fund is a recently organized management investment company with limited operating history. As a result, prospective investors do not have a track record or history on which to base their investment decisions.
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| GraniteShares Autocallable TSLA ETF | Non-Diversification Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Non-Diversification Risk. Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer or a smaller number of issuers than if it was a diversified fund. As a result, a decline in the value of an investment in a single issuer or a smaller number of issuers could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio.
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| GraniteShares Autocallable TSLA ETF | Operational Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Operational Risk. The Fund is subject to risks arising from various operational factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund relies on third-parties for a range of services, including custody. Any delay or failure relating to engaging or maintaining such service providers may affect the Fund’s ability to meet its investment objective. Although the Fund and the Adviser seek to reduce these operational risks through controls and procedures, there is no way to completely protect against such risks.
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| GraniteShares Autocallable TSLA ETF | Recent Market Events Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Recent Market Events Risk. U.S. and international markets have experienced significant periods of volatility in recent years due to a number of economic, political and global macro factors, including uncertainty regarding interest rates and inflation, rising government debt in the U.S. and elsewhere, political events, changes in trade policy and armed conflict. Public health emergencies, such as the COVID-19 pandemic, have in the past caused, and may in the future cause, disruptions to business operations and supply chains, reduced consumer demand and significant market volatility. Armed conflict, including the conflict between Russia and Ukraine and conflicts in the Middle East, has caused, and could continue to cause, loss of life and severe adverse effects on regional and global economies and on the markets for certain securities and commodities. The U.S., the European Union and other countries have imposed, and may impose additional, sanctions and other restrictive measures on certain countries, individuals and companies, which could adversely affect the issuers, markets and economies concerned. In addition, the U.S. has imposed, and may continue to impose, tariffs and other trade barriers, and other countries have imposed or may impose retaliatory measures. Trade disputes between the U.S. and other countries could result in additional tariffs, trade barriers and/or investment restrictions. These and other events could adversely affect the Fund’s performance, and their duration and full effects cannot be predicted.
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| GraniteShares Autocallable TSLA ETF | Single Issuer Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Single Issuer Risk. Issuer-specific attributes may cause an investment in the Fund to be more volatile than a traditional pooled investment vehicle which diversifies risk or the market generally. The value of the Fund, which focuses on an individual security (the Underlying Asset), may be more volatile than a traditional pooled investment or the market as a whole and may perform differently from the value of a traditional pooled investment or the market as a whole.
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| GraniteShares Autocallable TSLA ETF | Tax Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Tax Risk. The Fund intends to elect and to qualify each year to be treated as a RIC under Subchapter M of the Code. As a RIC, the Fund will not be subject to U.S. federal income tax on the portion of its net investment income and net capital gain that it distributes to Shareholders, provided that it satisfies certain requirements of the Code. If the Fund does not qualify as a RIC for any taxable year and certain relief provisions are not available, the Fund’s taxable income will be subject to tax at the Fund level and to a further tax at the shareholder level when such income is distributed. To comply with the asset diversification test applicable to a RIC, the Fund will attempt to ensure that the value of the derivatives it holds never exceed 25% of the total value of Fund assets at the close of any quarter. If the Fund’s investments in the derivatives were to exceed 25% of the Fund’s total assets at the end of a tax quarter, the Fund, generally, has a grace period to cure such lack of compliance. If the Fund fails to timely cure, it may no longer be eligible to be treated as a RIC. In addition, distributions received by the Fund from the Underlying Asset may generate “bad income” that could prevent the Fund from meeting the “Income Requirement” of Subchapter M of the Code, which may cause the Fund to fail to qualify as a RIC. The Fund intends to treat any income it may derive from the options and swap contracts as “qualifying income” under the provisions of the Code applicable to RICs. If the income is not qualifying income the Fund may lose its status as a RIC. The Fund will, for each year, distribute substantially all of its net investment income and net capital gains.
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| GraniteShares Autocallable TSLA ETF | Investing In U.S. Equities Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Investing in U.S. Equities Risk. Investing in U.S. issuers subjects the Fund to legal, regulatory, political, currency, security, and economic risks that are specific to the U.S. Certain changes in the U.S., such as a weakening of the U.S. economy or a decline in its financial markets, may have an adverse effect on U.S. issuers.
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| GraniteShares Autocallable TSLA ETF | Affiliated Etfs Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Affiliated ETFs Risk. The Fund may invest in equity securities of other ETFs for which the Adviser serves as investment adviser. It is possible that a conflict of interest may arise. Additionally, to the extent the Fund invests in the securities of another affiliated ETF, the Fund will be subject to the investment risks of the ETF. Shareholders of the Fund are subject to duplicative expenses to the extent of the Fund’s investment in any affiliated ETF. Finally, the shares of the ETFs in which the Fund may invest will be listed on a national securities exchange and the Fund will purchase or sell these shares on the secondary market at its current market price, which may be more or less than its net asset value per share.
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| GraniteShares Autocallable TSLA ETF | Box Spread E T F Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Box Spread ETF Risk. The Fund may invest in LBOX, an affiliated ETF advised by GraniteShares Advisors LLC, the Fund’s investment adviser, that employs a market-neutral box spread strategy to generate short-term, fixed-income-like returns. Box spread positions involve simultaneous long and short synthetic options positions on the same reference asset and are structured to capture an implied financing rate. While box spreads are designed to be market-neutral and to generate a return approximating prevailing short-term interest rates, they are subject to execution risk, counterparty risk with respect to the options positions, and the risk that the implied financing rate embedded in the box spread diverges from prevailing market rates in periods of market stress. The Fund’s investments in LBOX are made pursuant to Section 12(d)(1)(G) of the 1940 Act, which imposes no percentage-of-assets limits on the Fund’s investment in an exchange-traded fund. Accordingly, the Fund could, at any time, hold a material allocation in LBOX. The Fund’s adviser faces a conflict of interest in allocating Fund assets to an affiliated fund such as LBOX; see “Affiliated ETFs Risk.”
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| GraniteShares Autocallable TSLA ETF | U.S. Government And U.S. Agency Obligations Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | U.S. Government and U.S. Agency Obligations Risk. The Fund may invest in securities issued by the U.S. government or its agencies or instrumentalities. U.S. Government obligations include securities issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, such as the U.S. Treasury. Payment of principal and interest on U.S. Government obligations may be backed by the full faith and credit of the United States or may be backed solely by the issuing or guaranteeing agency or instrumentality itself. In the latter case, the investor must look principally to the agency or instrumentality issuing or guaranteeing the obligation for ultimate repayment, which agency or instrumentality may be privately owned. There can be no assurance that the U.S. Government would provide financial support to its agencies or instrumentalities (including government-sponsored enterprises) where it is not obligated to do so.
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| GraniteShares Autocallable TSLA ETF | Fixed Income Securities Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Fixed Income Securities Risk. The market value of Fixed Income Securities will change in response to interest rate changes and other factors, such as changes in the effective maturities and credit ratings of fixed income investments. During periods of falling interest rates, the values of outstanding Fixed Income Securities and related financial instruments generally rise. Conversely, during periods of rising interest rates, the values of such securities and related financial instruments generally decline. Fixed Income Securities are also subject to credit risk.
Investments in Fixed Income Securities may also involve the following risks, depending on the instrument involved:
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| GraniteShares Autocallable UPST ETF | |||||||||||||||||||
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| Risk [Text Block] | PRINCIPAL RISKS OF INVESTING IN THE FUND
The principal risks of investing in the Fund are summarized below. As with any investment, there is a risk that you could lose all or a portion of your investment in the Fund. Each risk summarized below is considered a “principal risk” of investing in the Fund, regardless of the order in which it appears. Some or all of these risks may adversely affect the Fund’s net asset value per share (“NAV”), trading price, yield, total return and/or ability to meet its investment objectives. For more information about the risks of investing in the Fund, see the section in the Fund’s Prospectus titled “Additional Information About the Fund — Principal Risks of Investing in the Fund.”
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| GraniteShares Autocallable UPST ETF | Underlying Asset Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Underlying Asset Risk. The performance of the Underlying Asset, and consequently the Fund’s performance, is subject to risks of the financial service industry. Financial services companies are subject to extensive governmental regulation, which may limit both the amounts and types of loans and other financial commitments they can make, the interest rates and fees they can charge, the scope of their activities, the prices they can charge and the amount of capital they must maintain. Profitability is largely dependent on the availability and cost of capital funds and can fluctuate significantly when interest rates change or due to increased competition. In addition, deterioration of the credit markets generally may cause an adverse impact in a broad range of markets, including U.S. and international credit and interbank money markets generally, thereby affecting a wide range of financial institutions and markets. Certain events in the financial sector may cause an unusually high degree of volatility in the financial markets, both domestic and foreign, and cause certain financial services companies to incur large losses. Securities of financial services companies may experience a dramatic decline in value when such companies experience substantial declines in the valuations of their assets, take action to raise capital (such as the issuance of debt or equity securities), or cease operations. Credit losses resulting from financial difficulties of borrowers and financial losses associated with investment activities can negatively impact the sector. Adverse economic, business or political developments could adversely affect financial institutions engaged in mortgage finance or other lending or investing activities directly or indirectly connected to the value of real estate.
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| GraniteShares Autocallable UPST ETF | Derivatives Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Derivatives Risk. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds, interest rates or indexes. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other ordinary investments, including risk related to the market, imperfect correlation with underlying investments, higher price volatility, lack of availability, counterparty risk, liquidity, valuation and legal restrictions. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. The use of derivatives may result in larger losses or smaller gains than directly investing in securities. When the Fund uses derivatives, there may be an imperfect correlation between the value of the Underlying Asset and the derivative, which may prevent the Fund from achieving its investment objectives. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of those amounts initially invested. In addition, the Fund’s investments in derivatives are subject to the following risks:
Options Contracts. The use of options contracts involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of options are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, including the anticipated volatility, which are affected by fiscal and monetary policies and by national and international political, changes in the actual or implied volatility or the reference asset, the time remaining until the expiration of the option contract and economic events. For the Fund, in particular, the value of the options contracts in which it invests is substantially influenced by the value of the Underlying Asset. Selling put options exposes the Fund to the risk of potential loss if the market value of the Underlying Asset falls below the strike price before the option expires. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. As an option approaches its expiration date, its value typically increasingly moves with the value of the underlying instrument. However, prior to such date, the value of an option generally does not increase or decrease at the same rate at the underlying instrument. There may at times be an imperfect correlation between the movement in values of options contracts and the underlying instrument, and there may at times not be a liquid secondary market for certain options contracts. The value of the options held by the Fund will be determined based on market quotations or other recognized pricing methods. Additionally, the Fund’s practice of “rolling” may cause the Fund to experience losses if the expiring contracts do not generate proceeds enough to cover the costs of entering into new options contracts. Rolling refers to the practice of closing out one options position and opening another with a different expiration date and/or a different strike price. Further, if an option is exercised, the seller (writer) of a put option is obligated to purchase the underlying asset at the strike price, which can result in significant financial and regulatory obligations for the Fund if the market value of the asset has fallen substantially. Furthermore, when the Fund seeks to trade out of puts, especially near expiration, there is an added risk that the Fund may be required to allocate resources unexpectedly to fulfill these obligations. This potential exposure to physical settlement can significantly impact the Fund’s liquidity and market exposure, particularly in volatile market conditions.
Swap Risk: Swaps are subject to tracking risk because they may not be perfect substitutes for the instruments they are intended to hedge or replace. Over the counter swaps are subject to counterparty default. Leverage inherent in derivatives will tend to magnify the Fund’s losses. The swap agreements may reference standardized exchange-traded, FLEX, European Style or American Style put options contracts that are based on the values of the price returns of the Underlying Asset. that generate specific risks.
Counterparty Risk. Counterparty risk is the risk that a counterparty to a financial instrument held by the Fund or by a special purpose or structured vehicle invested in by the Fund may become insolvent or otherwise fail to perform its obligations, and the Fund may obtain no or limited recovery of its investment, and any recovery may be significantly delayed.
Over-the-Counter Market Risk. Securities and options traded in over-the-counter markets may trade less frequently and in limited volumes and thus exhibit more volatility and liquidity risk, and the prices paid by the Fund in over-the-counter transactions may include an undisclosed dealer markup. The Fund is also exposed to default by the over-the-counter option writer who may be unwilling or unable to perform its contractual obligations to the Fund.
In addition, a counterparty (the other party to a transaction or an agreement or the party with whom the Fund executes transactions) to a transaction (including repurchase transaction) with the Fund may be unable or unwilling to make timely principal, interest or settlement payments, or otherwise honor its obligations.
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| GraniteShares Autocallable UPST ETF | Autocallable Structure Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Autocallable Structure Risk. The Fund’s returns are correlated to the performance of a theoretical portfolio of autocallables. Autocallables have specific structural features that may be unfamiliar to many investors:
Contingent Income Risk. Coupon payments from autocallables are not guaranteed and will not be made if the Underlying Asset falls below the Coupon Barrier on observation dates. This means the Fund may generate significantly less income than anticipated during market downturns. The expected absence of future coupon payments over the term of an autocallable could materially affect its value.
Early Redemption Risk. Autocallables may be called before their scheduled maturity if the Underlying Asset reaches or exceeds the Autocallable Barrier on observation dates. This automatic early redemption could force reinvestment of that portion of the portfolio at lower rates if market yields have declined.
Barrier Risk. If the Underlying Asset falls below the Maturity Barrier at the maturity of an autocallable, that portion of the portfolio will be fully exposed to the negative performance of the Underlying Asset from its initial level. For example, if the Underlying Asset has declined 45% at maturity of a particular autocallable, the portfolio allocated to that autocallable would lose 45% of its value. This conditional protection creates a binary outcome that can result in sudden, significant losses if barriers are breached.
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| GraniteShares Autocallable UPST ETF | Calculation Methodology Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Calculation Methodology Risk. Autocallables rely on complex calculation methodologies that may not perform as expected under certain market conditions.
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| GraniteShares Autocallable UPST ETF | Distribution Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective, the Fund seeks to provide current monthly income. There is no assurance that the Fund will make a distribution in any given month. If the Fund makes distributions, the amounts of such distributions will likely vary greatly from one distribution to the next. Additionally, the monthly distributions, if any, may consist of returns of capital, which would decrease the Fund’s NAV and trading price over time. As a result, an investor may suffer significant losses to their investment.
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| GraniteShares Autocallable UPST ETF | NAV Erosion Risk Due to Distributions [Member] | |||||||||||||||||||
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| GraniteShares Autocallable UPST ETF | Option Market Liquidity Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Option Market Liquidity Risk. Liquidity risk exists when particular investments are difficult to purchase or sell. The Fund’s investments in illiquid investments may reduce the returns of the Fund because it may be unable to sell the illiquid investments at an advantageous time or price.
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| GraniteShares Autocallable UPST ETF | Laddered Portfolio Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Laddered Portfolio Risk. A laddered portfolio strategy may not perform as expected if market conditions remain unfavorable over an extended period, multiple autocallable instruments may experience losses simultaneously and/or the reallocation across autocallable instruments may result in suboptimal entry points during rapidly changing markets. A portfolio of autocallables providing exposure to the same Underlying Asset may not be homogeneously affected by a change in that Underlying Asset price as the impact of such change may depend on the tenor of each autocallable. Depending on market conditions, requests to create and/or redeem shares in the Fund may result in the average tenor of the portfolio of autocallables held by the Fund to deviate from the average tenor the Fund intends to achieve.
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| GraniteShares Autocallable UPST ETF | Concentration Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Concentration Risk. To the extent that the Underlying Asset concentrates its investments in a particular industry, the Fund will be subject to the risks associated with that industry.
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| GraniteShares Autocallable UPST ETF | ETF Risks [Member] | |||||||||||||||||||
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| Risk [Text Block] | ETF Risks.
Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that are authorized to purchase and redeem Shares directly from the Fund (known as “Authorized Participants” or “APs”). There are a limited number of financial institutions that post collateral for certain trades on an agency basis (i.e. on behalf of other market participants). In such circumstances, the Fund’s market price may be significantly different than its underlying net asset value. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services; or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
Cash Redemption Risk. The Fund currently expects to effect a significant portion of its creations and redemptions for cash, rather than in-kind securities. Paying redemption proceeds in cash rather than through in-kind delivery of portfolio securities may require the Fund to dispose of or sell portfolio securities or other assets at an inopportune time to obtain the cash needed to meet redemption orders. This may cause the Fund to sell a security and recognize a capital gain or loss that might not have been incurred if it had made a redemption in-kind. As a result, the Fund may pay out higher or lower annual capital gains distributions than ETFs that redeem in-kind. The use of cash creations and redemptions may also cause the Fund’s Shares to trade in the market at greater bid-ask spreads or greater premiums or discounts to the Fund’s NAV. Furthermore, the Fund may not be able to execute cash transactions for creation and redemption purposes at the same price used to determine the Fund’s NAV. To the extent that the maximum additional charge for creation or redemption transactions is insufficient to cover the execution shortfall, the Fund’s performance could be negatively impacted.
Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid-ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.
Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant.
Trading. Although Shares are listed on a national securities exchange, such as The Nasdaq Stock Market, LLC (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that an active trading market for the Shares will develop or be maintained or that the Shares will trade with any volume, or at all, on any stock exchange. This risk may be greater for the Fund as it seeks to have exposure to a single underlying stock as opposed to a more diverse portfolio like a traditional pooled investment. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares. Shares trade on the Exchange at a market price that may be below, at or above the Fund’s NAV. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged. In the event of an unscheduled market close for options contracts that reference a single stock, such as the Underlying Asset’s securities being halted or a market wide closure, settlement prices will be determined by the procedures of the listing exchange of the options contracts. As a result, the Fund could be adversely affected and be unable to implement its investment strategies in the event of an unscheduled closing.
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| GraniteShares Autocallable UPST ETF | High Portfolio Turnover Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | High Portfolio Turnover Risk. The Fund may actively and frequently trade all or a significant portion of the Fund’s holdings. A high portfolio turnover rate increases transaction costs, which may increase the Fund’s expenses. Frequent trading may also cause adverse tax consequences for investors in the Fund due to an increase in short-term capital gains.
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| GraniteShares Autocallable UPST ETF | Inflation Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the present value of the Fund’s assets and distributions, if any, may decline.
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| GraniteShares Autocallable UPST ETF | Liquidity Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Liquidity Risk. Some securities held by the Fund, including options contracts, may be difficult to sell or be illiquid, particularly during times of market turmoil. This risk is greater for the Fund as it will hold options contracts on a single security, and not a broader range of options contracts. Markets for securities or financial instruments could be disrupted by a number of events, including, but not limited to, an economic crisis, natural disasters, epidemics/pandemics, new legislation or regulatory changes inside or outside the United States. Illiquid securities may be difficult to value, especially in changing or volatile markets. If the Fund is forced to sell an illiquid security at an unfavorable time or price, the Fund may be adversely impacted. Certain market conditions or restrictions, such as market rules related to short sales, may prevent the Fund from limiting losses, realizing gains or achieving a high correlation with the Underlying Asset. There is no assurance that a security that is deemed liquid when purchased will continue to be liquid. Market illiquidity may cause losses for the Fund.
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| GraniteShares Autocallable UPST ETF | Management Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Management Risk. The Fund is subject to management risk because it is an actively managed portfolio. In managing the Fund’s investment portfolio, the portfolio managers will apply investment techniques and risk analyses that may not produce the desired result. There can be no guarantee that the Fund will meet its investment objective.
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| GraniteShares Autocallable UPST ETF | Money Market Instrument Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Repurchase agreements are contracts in which a seller of securities agrees to buy the securities back at a specified time and price. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments, including money market funds, may lose money through fees or other means.
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| GraniteShares Autocallable UPST ETF | New Fund Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | New Fund Risk. The Fund is a recently organized management investment company with no operating history. As a result, prospective investors do not have a track record or history on which to base their investment decisions.
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| GraniteShares Autocallable UPST ETF | Non-Diversification Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Non-Diversification Risk. Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer or a smaller number of issuers than if it was a diversified fund. As a result, a decline in the value of an investment in a single issuer or a smaller number of issuers could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio.
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| GraniteShares Autocallable UPST ETF | Operational Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Operational Risk. The Fund is subject to risks arising from various operational factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund relies on third-parties for a range of services, including custody. Any delay or failure relating to engaging or maintaining such service providers may affect the Fund’s ability to meet its investment objective. Although the Fund and the Adviser seek to reduce these operational risks through controls and procedures, there is no way to completely protect against such risks.
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| GraniteShares Autocallable UPST ETF | Recent Market Events Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Recent Market Events Risk. U.S. and international markets have experienced significant periods of volatility in recent years due to a number of economic, political and global macro factors, including uncertainty regarding interest rates and inflation, rising government debt in the U.S. and elsewhere, political events, changes in trade policy and armed conflict. Public health emergencies, such as the COVID-19 pandemic, have in the past caused, and may in the future cause, disruptions to business operations and supply chains, reduced consumer demand and significant market volatility. Armed conflict, including the conflict between Russia and Ukraine and conflicts in the Middle East, has caused, and could continue to cause, loss of life and severe adverse effects on regional and global economies and on the markets for certain securities and commodities. The U.S., the European Union and other countries have imposed, and may impose additional, sanctions and other restrictive measures on certain countries, individuals and companies, which could adversely affect the issuers, markets and economies concerned. In addition, the U.S. has imposed, and may continue to impose, tariffs and other trade barriers, and other countries have imposed or may impose retaliatory measures. Trade disputes between the U.S. and other countries could result in additional tariffs, trade barriers and/or investment restrictions. These and other events could adversely affect the Fund’s performance, and their duration and full effects cannot be predicted.
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| GraniteShares Autocallable UPST ETF | Single Issuer Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Single Issuer Risk. Issuer-specific attributes may cause an investment in the Fund to be more volatile than a traditional pooled investment vehicle which diversifies risk or the market generally. The value of the Fund, which focuses on an individual security (the Underlying Asset), may be more volatile than a traditional pooled investment or the market as a whole and may perform differently from the value of a traditional pooled investment or the market as a whole.
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| GraniteShares Autocallable UPST ETF | Tax Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Tax Risk. The Fund intends to elect and to qualify each year to be treated as a RIC under Subchapter M of the Code. As a RIC, the Fund will not be subject to U.S. federal income tax on the portion of its net investment income and net capital gain that it distributes to Shareholders, provided that it satisfies certain requirements of the Code. If the Fund does not qualify as a RIC for any taxable year and certain relief provisions are not available, the Fund’s taxable income will be subject to tax at the Fund level and to a further tax at the shareholder level when such income is distributed. To comply with the asset diversification test applicable to a RIC, the Fund will attempt to ensure that the value of the derivatives it holds never exceed 25% of the total value of Fund assets at the close of any quarter. If the Fund’s investments in the derivatives were to exceed 25% of the Fund’s total assets at the end of a tax quarter, the Fund, generally, has a grace period to cure such lack of compliance. If the Fund fails to timely cure, it may no longer be eligible to be treated as a RIC. In addition, distributions received by the Fund from the Underlying Asset may generate “bad income” that could prevent the Fund from meeting the “Income Requirement” of Subchapter M of the Code, which may cause the Fund to fail to qualify as a RIC. The Fund intends to treat any income it may derive from the options and swap contracts as “qualifying income” under the provisions of the Code applicable to RICs. If the income is not qualifying income the Fund may lose its status as a RIC. The Fund will, for each year, distribute substantially all of its net investment income and net capital gains.
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| GraniteShares Autocallable UPST ETF | Investing In U.S. Equities Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Investing in U.S. Equities Risk. Investing in U.S. issuers subjects the Fund to legal, regulatory, political, currency, security, and economic risks that are specific to the U.S. Certain changes in the U.S., such as a weakening of the U.S. economy or a decline in its financial markets, may have an adverse effect on U.S. issuers.
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| GraniteShares Autocallable UPST ETF | Affiliated Etfs Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Affiliated ETFs Risk. The Fund may invest in equity securities of other ETFs for which the Adviser serves as investment adviser. It is possible that a conflict of interest may arise. Additionally, to the extent the Fund invests in the securities of another affiliated ETF, the Fund will be subject to the investment risks of the ETF. Shareholders of the Fund are subject to duplicative expenses to the extent of the Fund’s investment in any affiliated ETF. Finally, the shares of the ETFs in which the Fund may invest will be listed on a national securities exchange and the Fund will purchase or sell these shares on the secondary market at its current market price, which may be more or less than its net asset value per share.
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| GraniteShares Autocallable UPST ETF | Box Spread E T F Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Box Spread ETF Risk. The Fund may invest in LBOX, an affiliated ETF advised by GraniteShares Advisors LLC, the Fund’s investment adviser, that employs a market-neutral box spread strategy to generate short-term, fixed-income-like returns. Box spread positions involve simultaneous long and short synthetic options positions on the same reference asset and are structured to capture an implied financing rate. While box spreads are designed to be market-neutral and to generate a return approximating prevailing short-term interest rates, they are subject to execution risk, counterparty risk with respect to the options positions, and the risk that the implied financing rate embedded in the box spread diverges from prevailing market rates in periods of market stress. The Fund’s investments in LBOX are made pursuant to Section 12(d)(1)(G) of the 1940 Act, which imposes no percentage-of-assets limits on the Fund’s investment in an exchange-traded fund. Accordingly, the Fund could, at any time, hold a material allocation in LBOX. The Fund’s adviser faces a conflict of interest in allocating Fund assets to an affiliated fund such as LBOX; see “Affiliated ETFs Risk.”
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| GraniteShares Autocallable UPST ETF | U.S. Government And U.S. Agency Obligations Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | U.S. Government and U.S. Agency Obligations Risk. The Fund may invest in securities issued by the U.S. government or its agencies or instrumentalities. U.S. Government obligations include securities issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, such as the U.S. Treasury. Payment of principal and interest on U.S. Government obligations may be backed by the full faith and credit of the United States or may be backed solely by the issuing or guaranteeing agency or instrumentality itself. In the latter case, the investor must look principally to the agency or instrumentality issuing or guaranteeing the obligation for ultimate repayment, which agency or instrumentality may be privately owned. There can be no assurance that the U.S. Government would provide financial support to its agencies or instrumentalities (including government-sponsored enterprises) where it is not obligated to do so.
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| GraniteShares Autocallable UPST ETF | Fixed Income Securities Risk [Member] | |||||||||||||||||||
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| Risk [Text Block] | Fixed Income Securities Risk. The market value of Fixed Income Securities will change in response to interest rate changes and other factors, such as changes in the effective maturities and credit ratings of fixed income investments. During periods of falling interest rates, the values of outstanding Fixed Income Securities and related financial instruments generally rise. Conversely, during periods of rising interest rates, the values of such securities and related financial instruments generally decline. Fixed Income Securities are also subject to credit risk.
Investments in Fixed Income Securities may also involve the following risks, depending on the instrument involved:
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