Investment Risks |
Oct. 03, 2025 |
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YieldMax® AI Performance & Distribution Target 25™ ETF | AI Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | AI Risk. The Fund invests in options contracts that are based on the value of AI. This subjects the Fund to certain of the same risks as if it owned shares of AI, even though it does not. By virtue of the Fund’s investments in options contracts that are based on the value of AI, the Fund may also be subject to the following risks:
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YieldMax® AI Performance & Distribution Target 25™ ETF | Indirect Investment in AI Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Indirect Investment in AI Risk. AI is not affiliated with the Trust, the Fund, the Adviser, or their respective affiliates and is not involved with this offering in any way and has no obligation to consider your Shares in taking any corporate actions that might affect the value of Shares. Investors in the Fund will not have voting rights and will not be able to influence the management of AI but will be exposed to the performance of AI (the underlying stock). Investors in the Fund will not have rights to receive dividends or other distributions or any other rights with respect to the underlying stock but will be subject to declines in the performance of the underlying stock.
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YieldMax® AI Performance & Distribution Target 25™ ETF | AI Trading Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | AI Trading Risk. The trading price of AI may be highly volatile and could continue to be subject to wide fluctuations in response to various factors. The stock market in general, and the market for technology companies in particular, has experienced extreme price and volume fluctuations that have often been unrelated or disproportionate to the operating performance of those companies. In particular, a large proportion of AI may be traded by short sellers which may put pressure on the supply and demand for the common stock of AI, further influencing volatility in its market price. Public perception and other factors outside of the control of AI may additionally impact AI’s stock price due to AI garnering a disproportionate degree of public attention, regardless of actual operating performance. In addition, in the past, following periods of volatility in the overall market and the market price of a particular company’s securities, securities class action litigation has often been instituted against companies such as these. Moreover, stockholder litigation like this has been filed against AI in the past. While AI continues to defend such actions, any judgment against AI, or any future stockholder litigation could result in substantial costs and a diversion of the management of AI’s attention and resources. If AI trading is halted, trading in Shares of the Fund may be impacted, either temporarily or indefinitely.
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YieldMax® AI Performance & Distribution Target 25™ ETF | AI Performance Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | AI Performance Risk. AI may fail to meet its publicly announced guidelines or other expectations about its business, which could cause the price of AI to decline. AI provides guidance regarding its expected financial and business performance, such as projections regarding sales and production, as well as anticipated future revenues, gross margins, profitability and cash flows. Correctly identifying key factors affecting business conditions and predicting future events is inherently an uncertain process, and the guidance AI provides may not ultimately be accurate and has in the past been inaccurate in certain respects, such as the timing of new product manufacturing ramps. The guidance is based on certain assumptions such as those relating to global and local economic conditions, anticipated production and sales volumes (which generally are not linear throughout a given period), average sales prices, supplier and commodity costs, and planned cost reductions. If AI’s guidance is not accurate or varies from actual results due to its inability to meet the assumptions or the impact on its financial performance that could occur as a result of various risks and uncertainties, the market value of common stock issued by AI could decline significantly.
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YieldMax® AI Performance & Distribution Target 25™ ETF | Software Industry Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Software Industry Risk. 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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YieldMax® AI Performance & Distribution Target 25™ ETF | Operating Losses Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Operating Losses Risk. AI has a history of losses and anticipates its operating expenses will continue to increase in the future, and it may not be able to achieve or maintain profitability in the future. While AI has experienced revenue growth in recent periods, AI does not know whether or when it will generate sufficient revenue to sustain or increase its growth or achieve or maintain profitability in the future. AI also expects its costs and expenses to increase in future periods, which could negatively affect future results of operations if revenue does not increase.
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YieldMax® AI Performance & Distribution Target 25™ ETF | Customer Concentration Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Customer Concentration Risk. Historically, a limited number of customers have accounted for a substantial portion of AI’s revenue. If existing customers do not renew their contracts with AI, or if AI’s relationships with its largest customers are impaired or terminated, AI’s revenue and remaining performance obligations could decline, and its results of operations would be adversely impacted.
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YieldMax® AI Performance & Distribution Target 25™ ETF | Competition Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Competition Risk. The market for AI’s products is intensely competitive and characterized by rapid changes in technology, customer requirements, and industry standards, and frequent new platform and application introductions and improvements. AI anticipates continued competitive challenges from current competitors who address different aspects of its offerings. AI also expects competitive challenges from new entrants into the industry. If AI is unable to anticipate or effectively react to these competitive challenges, AI’s competitive position could weaken, and AI could experience a decline in its growth rate and revenue that could adversely affect its business and results of operations.
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YieldMax® AI Performance & Distribution Target 25™ 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 (including ETFs), 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 or the Fund’s other portfolio holdings, 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 Security and the derivative, which may prevent the Fund from achieving its investment objective. 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:
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YieldMax® AI Performance & Distribution Target 25™ ETF | Options Contracts [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | 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 are substantially influenced by the value of the Underlying Security. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. The options held by the Fund are exercisable at the strike price on their expiration date. As an option approaches its expiration date, its value typically increasingly move 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 the 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, to the extent the Fund maintains indirect exposure to an Underlying Security through the use of options contracts, as the options contracts it holds are exercised or expire it will enter into new options contracts, a practice referred to as “rolling.” If the expiring options contracts do not generate proceeds enough to cover the cost of entering into new options contracts, the Fund may experience losses.
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YieldMax® AI Performance & Distribution Target 25™ ETF | Counterparty Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Counterparty Risk. The Fund is subject to counterparty risk by virtue of its investments in options contracts. Transactions in some types of derivatives, including options, are required to be centrally cleared (“cleared derivatives”). In a transaction involving cleared derivatives, the Fund’s counterparty is a clearing house rather than a bank or broker. Since the Fund is not a member of clearing houses and only members of a clearing house (“clearing members”) can participate directly in the clearing house, the Fund will hold cleared derivatives through accounts at clearing members. In cleared derivatives positions, the Fund will make payments (including margin payments) to and receive payments from a clearing house through their accounts at clearing members. Customer funds held at a clearing organization in connection with any options contracts are held in a commingled omnibus account and are not identified to the name of the clearing member’s individual customers. As a result, assets deposited by the Fund with any clearing member as margin for options may, in certain circumstances, be used to satisfy losses of other clients of the Fund’s clearing member. In addition, although clearing members guarantee performance of their clients’ obligations to the clearing house, there is a risk that the assets of the Fund might not be fully protected in the event of the clearing member’s bankruptcy, as the Fund would be limited to recovering only a pro rata share of all available funds segregated on behalf of the clearing member’s customers for the relevant account class. The Fund is also subject to the risk that a limited number of clearing members are willing to transact on the Fund’s behalf, which heightens the risks associated with a clearing member’s default. If a clearing member defaults the Fund could lose some or all of the benefits of a transaction entered into by the Fund with the clearing member. If the Fund cannot find a clearing member to transact with on the Fund’s behalf, the Fund may be unable to effectively implement its investment strategy.
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YieldMax® AI Performance & Distribution Target 25™ ETF | Distribution Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective to provide current income, the Fund seeks to provide income distributions on a monthly or more frequent basis. There is no assurance that the Fund will make a distribution in any given month. If the Fund does make distributions, the amounts of such distributions will likely vary greatly from one distribution to the next.
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YieldMax® AI Performance & Distribution Target 25™ ETF | NAV Erosion Risk Due to Distributions [Member] | ||||
Prospectus [Line Items] | ||||
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YieldMax® AI Performance & Distribution Target 25™ ETF | Equity Market Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Equity Market Risk. Common stocks are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from specific issuers. The equity securities held in the Fund’s portfolio may experience sudden, unpredictable drops in value or long periods of decline in value. This may occur because of factors that affect securities markets generally or factors affecting specific issuers, industries, or sectors in which the Fund invests. Common stocks, such as those held by the Fund, are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from issuers.
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YieldMax® AI Performance & Distribution Target 25™ ETF | Concentration Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Concentration Risk. The Fund’s investments will be concentrated in same industry as that assigned to the Underlying Security. The value of the Fund’s shares may rise and fall more than the value of shares that invest in securities of companies in a broader range of industries.
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YieldMax® AI Performance & Distribution Target 25™ ETF | Economic and Market Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Economic and Market Risk. Economies and financial markets throughout the world are becoming increasingly interconnected, which increases the likelihood that events or conditions in one country or region will adversely impact markets or issuers in other countries or regions. Securities in the Fund’s portfolio may underperform in comparison to securities in the general financial markets, a particular financial market, or other asset classes, due to a number of factors, including inflation (or expectations for inflation), deflation (or expectations for deflation), interest rates, global demand for particular products or resources, market instability, financial system instability, debt crises and downgrades, embargoes, tariffs, sanctions and other trade barriers, regulatory events, other governmental trade or market control programs and related geopolitical events. In addition, the value of the Fund’s investments may be negatively affected by the occurrence of global events such as war, terrorism, environmental disasters, natural disasters or events, country instability, and infectious disease epidemics or pandemics. The imposition by the U.S. of tariffs on goods imported from foreign countries and reciprocal tariffs levied on U.S. goods by those countries also may lead to volatility and instability in domestic and foreign markets.
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YieldMax® AI Performance & Distribution Target 25™ ETF | ETF Risks [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | ETF Risks.
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YieldMax® AI Performance & Distribution Target 25™ ETF | Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | 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”). 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.
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YieldMax® AI Performance & Distribution Target 25™ ETF | Cash Redemption Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Cash Redemption Risk. The Fund’s investment strategy may require it to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. For example, the Fund may not be able to redeem in-kind certain securities held by the Fund (e.g., derivative instruments). In such a case, the Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used. By paying out higher annual capital gain distributions, investors may be subjected to increased capital gains taxes. Additionally, there may be brokerage costs or taxable gains or losses that may be imposed on the Fund in connection with a cash redemption that may not have occurred if the Fund had made a redemption in-kind. These costs could decrease the value of the Fund to the extent they are not offset by a transaction fee payable by an AP.
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YieldMax® AI Performance & Distribution Target 25™ ETF | Costs of Buying or Selling Shares [Member] | ||||
Prospectus [Line Items] | ||||
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YieldMax® AI Performance & Distribution Target 25™ ETF | Shares May Trade at Prices Other Than NAV [Member] | ||||
Prospectus [Line Items] | ||||
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YieldMax® AI Performance & Distribution Target 25™ ETF | Trading [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Trading. Although Shares are listed on a national securities exchange, such as NYSE Arca, Inc. (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. 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 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. 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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YieldMax® AI Performance & Distribution Target 25™ 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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YieldMax® AI Performance & Distribution Target 25™ 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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YieldMax® AI Performance & Distribution Target 25™ ETF | Market Capitalization Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Market Capitalization Risk.
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YieldMax® AI Performance & Distribution Target 25™ ETF | Mid-Capitalization Investing [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] |
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YieldMax® AI Performance & Distribution Target 25™ 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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YieldMax® AI Performance & Distribution Target 25™ 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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YieldMax® AI Performance & Distribution Target 25™ 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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YieldMax® AI Performance & Distribution Target 25™ 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 options on shares of a single issuer does not exceed 25% of the Fund’s value at the close of any quarter. If the value of options on shares of a single issuer 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.
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YieldMax® AI Performance & Distribution Target 25™ 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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YieldMax® AI Performance & Distribution Target 25™ ETF | Risk Lose Money [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | The Fund may not achieve its investment objective and there is a risk that you could lose all of your money invested in the Fund. | |||
YieldMax® AI Performance & Distribution Target 25™ ETF | Risk Nondiversified Status [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. This may increase the Fund’s volatility and cause the performance of a relatively smaller number of issuers to have a greater impact on the Fund’s performance.
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YieldMax® AMD Performance & Distribution Target 25™ ETF | Competition Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Competition Risk. The markets in which AMD’s products are sold are highly competitive and rapidly evolving. AMD expects that competition will continue to be intense due to rapid technological changes, new and evolving industry standards, changing customer preferences and requirements, and frequent introductions by competitors of products that may provide better performance/experience or that may include additional features that render AMD’s products comparatively less competitive. In addition, Intel Corporation’s dominance of the microprocessor market and its aggressive business practices may limit AMD’s ability to compete effectively on a level playing field. In addition, Nvidia’s Data Center GPU market share position, significant financial resources, introduction of competitive new products and proprietary software ecosystem have enabled it to market and price its products in a manner to encourage the selection of Nvidia-based systems and to influence customers who do business with AMD.
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YieldMax® AMD Performance & Distribution Target 25™ 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 (including ETFs), 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 or the Fund’s other portfolio holdings, 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 Security and the derivative, which may prevent the Fund from achieving its investment objective. 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:
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YieldMax® AMD Performance & Distribution Target 25™ ETF | Options Contracts [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | 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 are substantially influenced by the value of the Underlying Security. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. The options held by the Fund are exercisable at the strike price on their expiration date. As an option approaches its expiration date, its value typically increasingly move 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 the 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, to the extent the Fund maintains indirect exposure to an Underlying Security through the use of options contracts, as the options contracts it holds are exercised or expire it will enter into new options contracts, a practice referred to as “rolling.” If the expiring options contracts do not generate proceeds enough to cover the cost of entering into new options contracts, the Fund may experience losses.
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YieldMax® AMD Performance & Distribution Target 25™ ETF | Counterparty Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Counterparty Risk. The Fund is subject to counterparty risk by virtue of its investments in options contracts. Transactions in some types of derivatives, including options, are required to be centrally cleared (“cleared derivatives”). In a transaction involving cleared derivatives, the Fund’s counterparty is a clearing house rather than a bank or broker. Since the Fund is not a member of clearing houses and only members of a clearing house (“clearing members”) can participate directly in the clearing house, the Fund will hold cleared derivatives through accounts at clearing members. In cleared derivatives positions, the Fund will make payments (including margin payments) to and receive payments from a clearing house through their accounts at clearing members. Customer funds held at a clearing organization in connection with any options contracts are held in a commingled omnibus account and are not identified to the name of the clearing member’s individual customers. As a result, assets deposited by the Fund with any clearing member as margin for options may, in certain circumstances, be used to satisfy losses of other clients of the Fund’s clearing member. In addition, although clearing members guarantee performance of their clients’ obligations to the clearing house, there is a risk that the assets of the Fund might not be fully protected in the event of the clearing member’s bankruptcy, as the Fund would be limited to recovering only a pro rata share of all available funds segregated on behalf of the clearing member’s customers for the relevant account class. The Fund is also subject to the risk that a limited number of clearing members are willing to transact on the Fund’s behalf, which heightens the risks associated with a clearing member’s default. If a clearing member defaults the Fund could lose some or all of the benefits of a transaction entered into by the Fund with the clearing member. If the Fund cannot find a clearing member to transact with on the Fund’s behalf, the Fund may be unable to effectively implement its investment strategy.
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YieldMax® AMD Performance & Distribution Target 25™ ETF | Distribution Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective to provide current income, the Fund seeks to provide income distributions on a monthly or more frequent basis. There is no assurance that the Fund will make a distribution in any given month. If the Fund does make distributions, the amounts of such distributions will likely vary greatly from one distribution to the next.
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YieldMax® AMD Performance & Distribution Target 25™ ETF | NAV Erosion Risk Due to Distributions [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] |
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YieldMax® AMD Performance & Distribution Target 25™ ETF | Equity Market Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Equity Market Risk. Common stocks are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from specific issuers. The equity securities held in the Fund’s portfolio may experience sudden, unpredictable drops in value or long periods of decline in value. This may occur because of factors that affect securities markets generally or factors affecting specific issuers, industries, or sectors in which the Fund invests. Common stocks, such as those held by the Fund, are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from issuers.
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YieldMax® AMD Performance & Distribution Target 25™ ETF | Concentration Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Concentration Risk. The Fund’s investments will be concentrated in same industry as that assigned to the Underlying Security. The value of the Fund’s shares may rise and fall more than the value of shares that invest in securities of companies in a broader range of industries.
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YieldMax® AMD Performance & Distribution Target 25™ ETF | Economic and Market Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Economic and Market Risk. Economies and financial markets throughout the world are becoming increasingly interconnected, which increases the likelihood that events or conditions in one country or region will adversely impact markets or issuers in other countries or regions. Securities in the Fund’s portfolio may underperform in comparison to securities in the general financial markets, a particular financial market, or other asset classes, due to a number of factors, including inflation (or expectations for inflation), deflation (or expectations for deflation), interest rates, global demand for particular products or resources, market instability, financial system instability, debt crises and downgrades, embargoes, tariffs, sanctions and other trade barriers, regulatory events, other governmental trade or market control programs and related geopolitical events. In addition, the value of the Fund’s investments may be negatively affected by the occurrence of global events such as war, terrorism, environmental disasters, natural disasters or events, country instability, and infectious disease epidemics or pandemics. The imposition by the U.S. of tariffs on goods imported from foreign countries and reciprocal tariffs levied on U.S. goods by those countries also may lead to volatility and instability in domestic and foreign markets.
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YieldMax® AMD Performance & Distribution Target 25™ ETF | ETF Risks [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | ETF Risks.
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YieldMax® AMD Performance & Distribution Target 25™ ETF | Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | 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”). 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.
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YieldMax® AMD Performance & Distribution Target 25™ ETF | Cash Redemption Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Cash Redemption Risk. The Fund’s investment strategy may require it to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. For example, the Fund may not be able to redeem in-kind certain securities held by the Fund (e.g., derivative instruments). In such a case, the Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used. By paying out higher annual capital gain distributions, investors may be subjected to increased capital gains taxes. Additionally, there may be brokerage costs or taxable gains or losses that may be imposed on the Fund in connection with a cash redemption that may not have occurred if the Fund had made a redemption in-kind. These costs could decrease the value of the Fund to the extent they are not offset by a transaction fee payable by an AP.
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YieldMax® AMD Performance & Distribution Target 25™ ETF | Costs of Buying or Selling Shares [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] |
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YieldMax® AMD Performance & Distribution Target 25™ ETF | Shares May Trade at Prices Other Than NAV [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] |
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YieldMax® AMD Performance & Distribution Target 25™ ETF | Trading [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Trading. Although Shares are listed on a national securities exchange, such as NYSE Arca, Inc. (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. 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 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. 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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YieldMax® AMD Performance & Distribution Target 25™ 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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YieldMax® AMD Performance & Distribution Target 25™ 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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YieldMax® AMD Performance & Distribution Target 25™ ETF | Market Capitalization Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Market Capitalization Risk.
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YieldMax® AMD Performance & Distribution Target 25™ 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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YieldMax® AMD Performance & Distribution Target 25™ 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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YieldMax® AMD Performance & Distribution Target 25™ 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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YieldMax® AMD Performance & Distribution Target 25™ 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 options on shares of a single issuer does not exceed 25% of the Fund’s value at the close of any quarter. If the value of options on shares of a single issuer 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.
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YieldMax® AMD Performance & Distribution Target 25™ 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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YieldMax® AMD Performance & Distribution Target 25™ ETF | AMD Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | AMD Risk. The Fund invests in options contracts that are based on the value of AMD. This subjects the Fund to certain of the same risks as if it owned shares of AMD, even though it does not. By virtue of the Fund’s investments in options contracts that are based on the value of AMD, the Fund may also be subject to the following risks:
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YieldMax® AMD Performance & Distribution Target 25™ ETF | Indirect Investment in AMD Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Indirect Investment in AMD Risk. AMD is not affiliated with the Trust, the Fund, the Adviser, or their respective affiliates and is not involved with this offering in any way and has no obligation to consider your Shares in taking any corporate actions that might affect the value of Shares. Investors in the Fund will not have voting rights and will not be able to influence the management of AMD but will be exposed to the performance of AMD (the underlying stock). Investors in the Fund will not have rights to receive dividends or other distributions or any other rights with respect to the underlying stock but will be subject to declines in the performance of the underlying stock.
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YieldMax® AMD Performance & Distribution Target 25™ ETF | AMD Trading Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | AMD Trading Risk. The trading price of AMD may be highly volatile and could continue to be subject to wide fluctuations in response to various factors. The stock market in general, and the market for technology companies in particular, has experienced extreme price and volume fluctuations that have often been unrelated or disproportionate to the operating performance of those companies. In particular, a large proportion of AMD may be traded by short sellers which may put pressure on the supply and demand for the common stock of AMD, further influencing volatility in its market price. Public perception and other factors outside of the control of AMD may additionally impact AMD’s stock price due to AMD garnering a disproportionate degree of public attention, regardless of actual operating performance. In addition, in the past, following periods of volatility in the overall market and the market price of a particular company’s securities, securities class action litigation has often been instituted against companies such as these. Moreover, stockholder litigation like this has been filed against AMD in the past. While AMD continues to defend such actions, any judgment against AMD, or any future stockholder litigation could result in substantial costs and a diversion of the management of AMD’s attention and resources. If AMD trading is halted, trading in Shares of the AMD Fund may be impacted, either temporarily or indefinitely.
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YieldMax® AMD Performance & Distribution Target 25™ ETF | AMD Performance Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | AMD Performance Risk. AMD may fail to meet its publicly announced guidelines or other expectations about its business, which could cause the price of AMD to decline. AMD provides guidance regarding its expected financial and business performance, such as projections regarding sales and production, as well as anticipated future revenues, gross margins, profitability and cash flows. Correctly identifying key factors affecting business conditions and predicting future events is inherently an uncertain process, and the guidance AMD provides may not ultimately be accurate and has in the past been inaccurate in certain respects, such as the timing of new product manufacturing ramps. The guidance is based on certain assumptions such as those relating to global and local economic conditions, anticipated production and sales volumes (which generally are not linear throughout a given period), average sales prices, supplier and commodity costs, and planned cost reductions. If AMD’s guidance is not accurate or varies from actual results due to its inability to meet the assumptions or the impact on its financial performance that could occur as a result of various risks and uncertainties, the market value of common stock issued by AMD could decline significantly.
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YieldMax® AMD Performance & Distribution Target 25™ ETF | Semiconductor Company Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Semiconductor Company Risk. Competitive pressures may have a significant effect on the financial condition of semiconductor companies and, as product cycles shorten and manufacturing capacity increases, these companies may become increasingly subject to aggressive pricing, which hampers profitability. Reduced demand for end-user products, under-utilization of manufacturing capacity, and other factors could adversely impact the operating results of companies in the semiconductor sector. Semiconductor companies typically face high capital costs and may be heavily dependent on intellectual property rights. The semiconductor sector is highly cyclical, which may cause the operating results of many semiconductor companies to vary significantly. The stock prices of companies in the semiconductor sector have been and likely will continue to be extremely volatile.
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YieldMax® AMD Performance & Distribution Target 25™ ETF | Large-Capitalization Investing [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] |
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YieldMax® AMD Performance & Distribution Target 25™ ETF | Risk Lose Money [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | The Fund may not achieve its investment objective and there is a risk that you could lose all of your money invested in the Fund. | |||
YieldMax® AMD Performance & Distribution Target 25™ ETF | Risk Nondiversified Status [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. This may increase the Fund’s volatility and cause the performance of a relatively smaller number of issuers to have a greater impact on the Fund’s performance.
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YieldMax® AMZN Performance & Distribution Target 25™ 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 (including ETFs), 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 or the Fund’s other portfolio holdings, 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 Security and the derivative, which may prevent the Fund from achieving its investment objective. 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:
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YieldMax® AMZN Performance & Distribution Target 25™ ETF | Options Contracts [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | 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 are substantially influenced by the value of the Underlying Security. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. The options held by the Fund are exercisable at the strike price on their expiration date. As an option approaches its expiration date, its value typically increasingly move 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 the 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, to the extent the Fund maintains indirect exposure to an Underlying Security through the use of options contracts, as the options contracts it holds are exercised or expire it will enter into new options contracts, a practice referred to as “rolling.” If the expiring options contracts do not generate proceeds enough to cover the cost of entering into new options contracts, the Fund may experience losses.
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YieldMax® AMZN Performance & Distribution Target 25™ ETF | Counterparty Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Counterparty Risk. The Fund is subject to counterparty risk by virtue of its investments in options contracts. Transactions in some types of derivatives, including options, are required to be centrally cleared (“cleared derivatives”). In a transaction involving cleared derivatives, the Fund’s counterparty is a clearing house rather than a bank or broker. Since the Fund is not a member of clearing houses and only members of a clearing house (“clearing members”) can participate directly in the clearing house, the Fund will hold cleared derivatives through accounts at clearing members. In cleared derivatives positions, the Fund will make payments (including margin payments) to and receive payments from a clearing house through their accounts at clearing members. Customer funds held at a clearing organization in connection with any options contracts are held in a commingled omnibus account and are not identified to the name of the clearing member’s individual customers. As a result, assets deposited by the Fund with any clearing member as margin for options may, in certain circumstances, be used to satisfy losses of other clients of the Fund’s clearing member. In addition, although clearing members guarantee performance of their clients’ obligations to the clearing house, there is a risk that the assets of the Fund might not be fully protected in the event of the clearing member’s bankruptcy, as the Fund would be limited to recovering only a pro rata share of all available funds segregated on behalf of the clearing member’s customers for the relevant account class. The Fund is also subject to the risk that a limited number of clearing members are willing to transact on the Fund’s behalf, which heightens the risks associated with a clearing member’s default. If a clearing member defaults the Fund could lose some or all of the benefits of a transaction entered into by the Fund with the clearing member. If the Fund cannot find a clearing member to transact with on the Fund’s behalf, the Fund may be unable to effectively implement its investment strategy.
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YieldMax® AMZN Performance & Distribution Target 25™ ETF | Distribution Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective to provide current income, the Fund seeks to provide income distributions on a monthly or more frequent basis. There is no assurance that the Fund will make a distribution in any given month. If the Fund does make distributions, the amounts of such distributions will likely vary greatly from one distribution to the next.
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YieldMax® AMZN Performance & Distribution Target 25™ ETF | NAV Erosion Risk Due to Distributions [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] |
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YieldMax® AMZN Performance & Distribution Target 25™ ETF | Equity Market Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Equity Market Risk. Common stocks are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from specific issuers. The equity securities held in the Fund’s portfolio may experience sudden, unpredictable drops in value or long periods of decline in value. This may occur because of factors that affect securities markets generally or factors affecting specific issuers, industries, or sectors in which the Fund invests. Common stocks, such as those held by the Fund, are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from issuers.
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YieldMax® AMZN Performance & Distribution Target 25™ ETF | Concentration Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Concentration Risk. The Fund’s investments will be concentrated in same industry as that assigned to the Underlying Security. The value of the Fund’s shares may rise and fall more than the value of shares that invest in securities of companies in a broader range of industries.
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YieldMax® AMZN Performance & Distribution Target 25™ ETF | Economic and Market Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Economic and Market Risk. Economies and financial markets throughout the world are becoming increasingly interconnected, which increases the likelihood that events or conditions in one country or region will adversely impact markets or issuers in other countries or regions. Securities in the Fund’s portfolio may underperform in comparison to securities in the general financial markets, a particular financial market, or other asset classes, due to a number of factors, including inflation (or expectations for inflation), deflation (or expectations for deflation), interest rates, global demand for particular products or resources, market instability, financial system instability, debt crises and downgrades, embargoes, tariffs, sanctions and other trade barriers, regulatory events, other governmental trade or market control programs and related geopolitical events. In addition, the value of the Fund’s investments may be negatively affected by the occurrence of global events such as war, terrorism, environmental disasters, natural disasters or events, country instability, and infectious disease epidemics or pandemics. The imposition by the U.S. of tariffs on goods imported from foreign countries and reciprocal tariffs levied on U.S. goods by those countries also may lead to volatility and instability in domestic and foreign markets.
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YieldMax® AMZN Performance & Distribution Target 25™ ETF | ETF Risks [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | ETF Risks.
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YieldMax® AMZN Performance & Distribution Target 25™ ETF | Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | 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”). 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.
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YieldMax® AMZN Performance & Distribution Target 25™ ETF | Cash Redemption Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Cash Redemption Risk. The Fund’s investment strategy may require it to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. For example, the Fund may not be able to redeem in-kind certain securities held by the Fund (e.g., derivative instruments). In such a case, the Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used. By paying out higher annual capital gain distributions, investors may be subjected to increased capital gains taxes. Additionally, there may be brokerage costs or taxable gains or losses that may be imposed on the Fund in connection with a cash redemption that may not have occurred if the Fund had made a redemption in-kind. These costs could decrease the value of the Fund to the extent they are not offset by a transaction fee payable by an AP.
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YieldMax® AMZN Performance & Distribution Target 25™ ETF | Costs of Buying or Selling Shares [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] |
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YieldMax® AMZN Performance & Distribution Target 25™ ETF | Shares May Trade at Prices Other Than NAV [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] |
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YieldMax® AMZN Performance & Distribution Target 25™ ETF | Trading [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Trading. Although Shares are listed on a national securities exchange, such as NYSE Arca, Inc. (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. 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 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. 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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YieldMax® AMZN Performance & Distribution Target 25™ 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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YieldMax® AMZN Performance & Distribution Target 25™ 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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YieldMax® AMZN Performance & Distribution Target 25™ ETF | Market Capitalization Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Market Capitalization Risk.
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YieldMax® AMZN Performance & Distribution Target 25™ 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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YieldMax® AMZN Performance & Distribution Target 25™ 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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YieldMax® AMZN Performance & Distribution Target 25™ 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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YieldMax® AMZN Performance & Distribution Target 25™ 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 options on shares of a single issuer does not exceed 25% of the Fund’s value at the close of any quarter. If the value of options on shares of a single issuer 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.
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YieldMax® AMZN Performance & Distribution Target 25™ 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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YieldMax® AMZN Performance & Distribution Target 25™ ETF | Large-Capitalization Investing [Member] | ||||
Prospectus [Line Items] | ||||
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YieldMax® AMZN Performance & Distribution Target 25™ ETF | AMZN Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | AMZN Risk. The Fund invests in options contracts that are based on the value of AMZN. This subjects the Fund to certain of the same risks as if it owned shares of AMZN, even though it does not. By virtue of the Fund’s investments in options contracts that are based on the value of AMZN, the Fund may also be subject to the following risks:
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YieldMax® AMZN Performance & Distribution Target 25™ ETF | Indirect Investment in AMZN Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Indirect Investment in AMZN Risk. Amazon.com, Inc. is not affiliated with the Trust, the Fund, the Adviser, or their respective affiliates and is not involved with this offering in any way and has no obligation to consider your Shares in taking any corporate actions that might affect the value of Shares. Investors in the Fund will not have voting rights and will not be able to influence management of Amazon.com, Inc. but will be exposed to the performance of AMZN (the underlying stock). Investors in the Fund will not have rights to receive dividends or other distributions or any other rights with respect to the underlying stock but will be subject to declines in the performance of the underlying stock.
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YieldMax® AMZN Performance & Distribution Target 25™ ETF | AMZN Trading Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | AMZN Trading Risk. The trading price of AMZN may be highly volatile and could continue to be subject to wide fluctuations in response to various factors. The stock market in general, and the market for technology companies in particular, has experienced extreme price and volume fluctuations that have often been unrelated or disproportionate to the operating performance of those companies. In particular, a large proportion of AMZN may be traded by short sellers which may put pressure on the supply and demand for the common stock of Amazon.com, Inc., further influencing volatility in its market price. Public perception and other factors outside of the control of Amazon.com, Inc. may additionally impact AMZN’s stock price due to Amazon.com, Inc. garnering a disproportionate degree of public attention, regardless of actual operating performance. In addition, in the past, following periods of volatility in the overall market and the market price of a particular company’s securities, securities class action litigation has often been instituted against companies such as these. Moreover, stockholder litigation like this has been filed against Amazon.com, Inc. in the past. While Amazon.com, Inc. continues to defend such actions, any judgment against Amazon.com, Inc., or any future stockholder litigation could result in substantial costs and a diversion of the management of Amazon.com, Inc.’s attention and resources. If AMZN trading is halted, trading in Shares of the AMZN Fund may be impacted, either temporarily or indefinitely.
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YieldMax® AMZN Performance & Distribution Target 25™ ETF | Amazon.com, Inc. Performance Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Amazon.com, Inc. Performance Risk. Amazon.com, Inc. may fail to meet its publicly announced guidelines or other expectations about its business, which could cause the price of AMZN to decline. Amazon.com, Inc. provides guidance regarding its expected financial and business performance, such as projections regarding sales and production, as well as anticipated future revenues, gross margins, profitability and cash flows. Correctly identifying key factors affecting business conditions and predicting future events is inherently an uncertain process, and the guidance Amazon.com, Inc. provides may not ultimately be accurate and has in the past been inaccurate in certain respects, such as the timing of new product manufacturing ramps. The guidance is based on certain assumptions such as those relating to global and local economic conditions, anticipated production and sales volumes (which generally are not linear throughout a given period), average sales prices, supplier and commodity costs, and planned cost reductions. If Amazon.com, Inc.’s guidance is not accurate or varies from actual results due to its inability to meet the assumptions or the impact on its financial performance that could occur as a result of various risks and uncertainties, the market value of common stock issued by Amazon.com, Inc. could decline significantly.
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YieldMax® AMZN Performance & Distribution Target 25™ ETF | Internet & Direct Marketing Retail Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Internet & Direct Marketing Retail Risk. Companies, such as Amazon.com, Inc., that operate via the internet or direct marketing (e.g., online consumer services, online retail, travel) 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, retail and travel segments to reduce profit margins in order to compete. Due to the nature of their business models, companies that operate in the online marketplace, retail, and travel segments may also be subject to heightened cybersecurity 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 via the internet or direct marketing retail 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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YieldMax® AMZN Performance & Distribution Target 25™ ETF | New Products and Services Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | New Products and Services Risk. AMZN has expanded its product offerings over time to include additional segments, such as cloud computing and digital subscriptions services. Expansion of products and services across additional markets exposes AMZN to additional risks related to these markets. In addition, as new products and offerings are developed, AMZN may have limited or no experience in these newer market segments, and AMZN’s customers may not adopt these product or service offerings. These offerings, which can present new and difficult technology challenges, may subject AMZN to claims if customers of these offerings experience, or are otherwise impacted by, service disruptions, delays, setbacks, or failures or quality issues. In addition, profitability or other intended benefits, if any, in newer activities may not meet AMZN’s expectations, and AMZN may not be successful enough in these newer activities to recoup its investments in them, which investments are often significant. Failure to realize the benefits of amounts AMZN invests in new technologies, products, or services could result in the value of those investments being written down or written off.
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YieldMax® AMZN Performance & Distribution Target 25™ ETF | Risk Lose Money [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | The Fund may not achieve its investment objective and there is a risk that you could lose all of your money invested in the Fund. | |||
YieldMax® AMZN Performance & Distribution Target 25™ ETF | Risk Nondiversified Status [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. This may increase the Fund’s volatility and cause the performance of a relatively smaller number of issuers to have a greater impact on the Fund’s performance.
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YieldMax® COIN Performance & Distribution Target 25™ 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 (including ETFs), 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 or the Fund’s other portfolio holdings, 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 Security and the derivative, which may prevent the Fund from achieving its investment objective. 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:
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YieldMax® COIN Performance & Distribution Target 25™ ETF | Options Contracts [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | 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 are substantially influenced by the value of the Underlying Security. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. The options held by the Fund are exercisable at the strike price on their expiration date. As an option approaches its expiration date, its value typically increasingly move 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 the 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, to the extent the Fund maintains indirect exposure to an Underlying Security through the use of options contracts, as the options contracts it holds are exercised or expire it will enter into new options contracts, a practice referred to as “rolling.” If the expiring options contracts do not generate proceeds enough to cover the cost of entering into new options contracts, the Fund may experience losses.
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YieldMax® COIN Performance & Distribution Target 25™ ETF | Counterparty Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Counterparty Risk. The Fund is subject to counterparty risk by virtue of its investments in options contracts. Transactions in some types of derivatives, including options, are required to be centrally cleared (“cleared derivatives”). In a transaction involving cleared derivatives, the Fund’s counterparty is a clearing house rather than a bank or broker. Since the Fund is not a member of clearing houses and only members of a clearing house (“clearing members”) can participate directly in the clearing house, the Fund will hold cleared derivatives through accounts at clearing members. In cleared derivatives positions, the Fund will make payments (including margin payments) to and receive payments from a clearing house through their accounts at clearing members. Customer funds held at a clearing organization in connection with any options contracts are held in a commingled omnibus account and are not identified to the name of the clearing member’s individual customers. As a result, assets deposited by the Fund with any clearing member as margin for options may, in certain circumstances, be used to satisfy losses of other clients of the Fund’s clearing member. In addition, although clearing members guarantee performance of their clients’ obligations to the clearing house, there is a risk that the assets of the Fund might not be fully protected in the event of the clearing member’s bankruptcy, as the Fund would be limited to recovering only a pro rata share of all available funds segregated on behalf of the clearing member’s customers for the relevant account class. The Fund is also subject to the risk that a limited number of clearing members are willing to transact on the Fund’s behalf, which heightens the risks associated with a clearing member’s default. If a clearing member defaults the Fund could lose some or all of the benefits of a transaction entered into by the Fund with the clearing member. If the Fund cannot find a clearing member to transact with on the Fund’s behalf, the Fund may be unable to effectively implement its investment strategy.
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YieldMax® COIN Performance & Distribution Target 25™ ETF | Distribution Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective to provide current income, the Fund seeks to provide income distributions on a monthly or more frequent basis. There is no assurance that the Fund will make a distribution in any given month. If the Fund does make distributions, the amounts of such distributions will likely vary greatly from one distribution to the next.
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YieldMax® COIN Performance & Distribution Target 25™ ETF | NAV Erosion Risk Due to Distributions [Member] | ||||
Prospectus [Line Items] | ||||
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YieldMax® COIN Performance & Distribution Target 25™ ETF | Equity Market Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Equity Market Risk. Common stocks are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from specific issuers. The equity securities held in the Fund’s portfolio may experience sudden, unpredictable drops in value or long periods of decline in value. This may occur because of factors that affect securities markets generally or factors affecting specific issuers, industries, or sectors in which the Fund invests. Common stocks, such as those held by the Fund, are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from issuers.
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YieldMax® COIN Performance & Distribution Target 25™ ETF | Concentration Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Concentration Risk. The Fund’s investments will be concentrated in same industry as that assigned to the Underlying Security. The value of the Fund’s shares may rise and fall more than the value of shares that invest in securities of companies in a broader range of industries.
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YieldMax® COIN Performance & Distribution Target 25™ ETF | Economic and Market Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Economic and Market Risk. Economies and financial markets throughout the world are becoming increasingly interconnected, which increases the likelihood that events or conditions in one country or region will adversely impact markets or issuers in other countries or regions. Securities in the Fund’s portfolio may underperform in comparison to securities in the general financial markets, a particular financial market, or other asset classes, due to a number of factors, including inflation (or expectations for inflation), deflation (or expectations for deflation), interest rates, global demand for particular products or resources, market instability, financial system instability, debt crises and downgrades, embargoes, tariffs, sanctions and other trade barriers, regulatory events, other governmental trade or market control programs and related geopolitical events. In addition, the value of the Fund’s investments may be negatively affected by the occurrence of global events such as war, terrorism, environmental disasters, natural disasters or events, country instability, and infectious disease epidemics or pandemics. The imposition by the U.S. of tariffs on goods imported from foreign countries and reciprocal tariffs levied on U.S. goods by those countries also may lead to volatility and instability in domestic and foreign markets.
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YieldMax® COIN Performance & Distribution Target 25™ ETF | ETF Risks [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | ETF Risks.
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YieldMax® COIN Performance & Distribution Target 25™ ETF | Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | 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”). 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.
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YieldMax® COIN Performance & Distribution Target 25™ ETF | Cash Redemption Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Cash Redemption Risk. The Fund’s investment strategy may require it to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. For example, the Fund may not be able to redeem in-kind certain securities held by the Fund (e.g., derivative instruments). In such a case, the Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used. By paying out higher annual capital gain distributions, investors may be subjected to increased capital gains taxes. Additionally, there may be brokerage costs or taxable gains or losses that may be imposed on the Fund in connection with a cash redemption that may not have occurred if the Fund had made a redemption in-kind. These costs could decrease the value of the Fund to the extent they are not offset by a transaction fee payable by an AP.
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YieldMax® COIN Performance & Distribution Target 25™ ETF | Costs of Buying or Selling Shares [Member] | ||||
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YieldMax® COIN Performance & Distribution Target 25™ ETF | Shares May Trade at Prices Other Than NAV [Member] | ||||
Prospectus [Line Items] | ||||
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YieldMax® COIN Performance & Distribution Target 25™ ETF | Trading [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Trading. Although Shares are listed on a national securities exchange, such as NYSE Arca, Inc. (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. 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 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. 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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YieldMax® COIN Performance & Distribution Target 25™ 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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YieldMax® COIN Performance & Distribution Target 25™ 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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YieldMax® COIN Performance & Distribution Target 25™ ETF | Market Capitalization Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Market Capitalization Risk.
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YieldMax® COIN Performance & Distribution Target 25™ 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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YieldMax® COIN Performance & Distribution Target 25™ 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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YieldMax® COIN Performance & Distribution Target 25™ 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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YieldMax® COIN Performance & Distribution Target 25™ 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 options on shares of a single issuer does not exceed 25% of the Fund’s value at the close of any quarter. If the value of options on shares of a single issuer 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.
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YieldMax® COIN Performance & Distribution Target 25™ 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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YieldMax® COIN Performance & Distribution Target 25™ ETF | Large-Capitalization Investing [Member] | ||||
Prospectus [Line Items] | ||||
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YieldMax® COIN Performance & Distribution Target 25™ ETF | COIN Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | COIN Risk. The Fund invests in options contracts that are based on the value of COIN. This subjects the Fund to certain of the same risks as if it owned shares of COIN, even though it does not. By virtue of the Fund’s investments in options contracts that are based on the value of COIN, the Fund may also be subject to the following risks:
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YieldMax® COIN Performance & Distribution Target 25™ ETF | Indirect Investment in COIN Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Indirect Investment in COIN Risk. Coinbase Global, Inc. is not affiliated with the Trust, the Fund, the Adviser, or their respective affiliates and is not involved with this offering in any way and has no obligation to consider your Shares in taking any corporate actions that might affect the value of Shares. Investors in the Fund will not have voting rights and will not be able to influence management of Coinbase Global, Inc. but will be exposed to the performance of COIN (the underlying stock). Investors in the Fund will not have rights to receive dividends or other distributions or any other rights with respect to the underlying stock but will be subject to declines in the performance of the underlying stock.
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YieldMax® COIN Performance & Distribution Target 25™ ETF | COIN Trading Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | COIN Trading Risk. The trading price of COIN may be highly volatile and could continue to be subject to wide fluctuations in response to various factors. The stock market in general, and the market for technology companies in particular, has experienced extreme price and volume fluctuations that have often been unrelated or disproportionate to the operating performance of those companies. In particular, a large proportion of COIN may be traded by short sellers which may put pressure on the supply and demand for the common stock of Coinbase Global, Inc., further influencing volatility in its market price. Public perception and other factors outside of the control of Coinbase Global, Inc. may additionally impact COIN’s stock price due to Coinbase Global, Inc. garnering a disproportionate degree of public attention, regardless of actual operating performance. In addition, in the past, following periods of volatility in the overall market and the market price of a particular company’s securities, securities class action litigation has often been instituted against companies such as these. Moreover, stockholder litigation like this has been filed against Coinbase Global, Inc. in the past. While Coinbase Global, Inc. continues to defend such actions, any judgment against Coinbase Global, Inc., or any future stockholder litigation could result in substantial costs and a diversion of the management of Coinbase Global, Inc.’s attention and resources. If COIN trading is halted, trading in Shares of the COIN Fund may be impacted, either temporarily or indefinitely.
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YieldMax® COIN Performance & Distribution Target 25™ ETF | Coinbase Global, Inc. Performance Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Coinbase Global, Inc. Performance Risk. Coinbase Global, Inc. may fail to meet its publicly announced guidelines or other expectations about its business, which could cause the price of COIN to decline. Coinbase Global, Inc. provides guidance regarding its expected financial and business performance, such as projections regarding sales and production, as well as anticipated future revenues, gross margins, profitability and cash flows. Correctly identifying key factors affecting business conditions and predicting future events is inherently an uncertain process, and the guidance Coinbase Global, Inc. provides may not ultimately be accurate and has in the past been inaccurate in certain respects, such as the timing of new product manufacturing ramps. The guidance is based on certain assumptions such as those relating to global and local economic conditions, anticipated production and sales volumes (which generally are not linear throughout a given period), average sales prices, supplier and commodity costs, and planned cost reductions. If Coinbase Global, Inc.’s guidance is not accurate or varies from actual results due to its inability to meet the assumptions or the impact on its financial performance that could occur as a result of various risks and uncertainties, the market value of common stock issued by Coinbase Global, Inc. could decline significantly.
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YieldMax® COIN Performance & Distribution Target 25™ ETF | Digital Assets Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Digital Assets Risk. Although the Fund does not directly invest in digital assets, it is exposed to their risks through options contracts referencing COIN. Digital asset technologies are highly disruptive and uncertain, and rapid technological advances may render existing assets obsolete. Additionally, intellectual property disputes among digital asset companies may undermine confidence in their viability. The trading platforms for digital assets are relatively new, largely unregulated, and thus more vulnerable to fraud and failures compared to traditional, regulated exchanges. Shutdowns of these platforms due to fraud, technical glitches, external attacks or security issues can significantly affect digital asset prices and market volatility. These assets are typically stored in digital wallets, accessible only via private keys—if lost or stolen, the assets may be irretrievable. Digital assets also face manipulation risks and reliance on third-party products with potential vulnerabilities. Historically, digital assets have exhibited extreme price volatility and may become highly illiquid in stressed markets. Their value is not necessarily correlated to traditional economic or market forces, and demand for a digital asset could collapse, potentially driving its value to zero.
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YieldMax® COIN Performance & Distribution Target 25™ ETF | Coinbase Global, Inc. Regulatory Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Coinbase Global, Inc. Regulatory Risk: Crypto asset trading platforms may be operating out of compliance with applicable laws and regulations. Such crypto asset trading platforms are, or may become, subject to enforcement actions by regulatory authorities. Any such enforcement actions may have a material adverse impact on the Fund, its investments, and its ability to implement its investment strategy. The SEC has brought an enforcement action alleging that Coinbase Global, Inc. provides, among other things: a trading platform that operates as an unregistered broker, unregistered exchange, and an unregistered clearing agency, a prime broker that operates as an unregistered broker; and a crypto asset staking program that constitutes the unregistered offer and sale of an investment contract, and thus a security.
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YieldMax® COIN Performance & Distribution Target 25™ ETF | Financials Companies Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Financials Companies Risk. Financial companies, such as retail and commercial banks, brokerage firms, insurance companies and financial services companies, are especially subject to the adverse effects of economic recession, currency exchange rates, extensive government regulation, decreases in the availability of capital, volatile interest rates, portfolio concentrations in geographic markets, industries or products (such as commercial and residential real estate loans) and competition from new entrants and blurred distinctions in their fields of business. The extent to which the Fund may invest in a company that engages in securities-related activities or banking is limited by applicable law. Governmental regulation may change frequently and may have significant adverse consequences for companies in the financials sector, including effects not intended by such regulation. The impact of changes in capital requirements, or recent or future regulation, on any financial company or on the financials sector as a whole cannot be predicted. The financials sector can be a target or cyberattacks, and may experience technology malfunctions and disruptions. These risks may be amplified for companies that operate online and digital platforms. In recent years, cyberattacks and technology malfunctions and failures have become increasingly frequent in this sector and have reportedly caused losses to companies in this sector.
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YieldMax® COIN Performance & Distribution Target 25™ ETF | Blockchain Related Company Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Blockchain Related Company Risk. The performance of COIN, and consequently the Fund, is subject to risks associated with blockchain-related companies. Blockchain is a decentralized digital ledger that records crypto asset transactions, but its applications remain largely untested. Companies in this sector face volatile adoption rates, intense competition, and potential product obsolescence. Their financial performance is often tied to fluctuations in digital asset prices. Many blockchain companies operate with limited regulatory oversight, but stricter regulations could increase costs, restrict business activities, or even lead to prohibitions. Conversely, clearer regulations may benefit some companies. Additionally, blockchain firms store sensitive consumer data, making them targets for cybersecurity threats and theft. Loss or compromise of cryptographic keys could also result in irreversible asset losses.
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YieldMax® COIN Performance & Distribution Target 25™ ETF | Risk Lose Money [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | The Fund may not achieve its investment objective and there is a risk that you could lose all of your money invested in the Fund. | |||
YieldMax® COIN Performance & Distribution Target 25™ ETF | Risk Nondiversified Status [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. This may increase the Fund’s volatility and cause the performance of a relatively smaller number of issuers to have a greater impact on the Fund’s performance.
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YieldMax® MARA Performance & Distribution Target 25™ ETF | Software Industry Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Software Industry Risk. 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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YieldMax® MARA Performance & Distribution Target 25™ 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 (including ETFs), 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 or the Fund’s other portfolio holdings, 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 Security and the derivative, which may prevent the Fund from achieving its investment objective. 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:
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YieldMax® MARA Performance & Distribution Target 25™ ETF | Options Contracts [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | 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 are substantially influenced by the value of the Underlying Security. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. The options held by the Fund are exercisable at the strike price on their expiration date. As an option approaches its expiration date, its value typically increasingly move 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 the 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, to the extent the Fund maintains indirect exposure to an Underlying Security through the use of options contracts, as the options contracts it holds are exercised or expire it will enter into new options contracts, a practice referred to as “rolling.” If the expiring options contracts do not generate proceeds enough to cover the cost of entering into new options contracts, the Fund may experience losses.
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YieldMax® MARA Performance & Distribution Target 25™ ETF | Counterparty Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Counterparty Risk. The Fund is subject to counterparty risk by virtue of its investments in options contracts. Transactions in some types of derivatives, including options, are required to be centrally cleared (“cleared derivatives”). In a transaction involving cleared derivatives, the Fund’s counterparty is a clearing house rather than a bank or broker. Since the Fund is not a member of clearing houses and only members of a clearing house (“clearing members”) can participate directly in the clearing house, the Fund will hold cleared derivatives through accounts at clearing members. In cleared derivatives positions, the Fund will make payments (including margin payments) to and receive payments from a clearing house through their accounts at clearing members. Customer funds held at a clearing organization in connection with any options contracts are held in a commingled omnibus account and are not identified to the name of the clearing member’s individual customers. As a result, assets deposited by the Fund with any clearing member as margin for options may, in certain circumstances, be used to satisfy losses of other clients of the Fund’s clearing member. In addition, although clearing members guarantee performance of their clients’ obligations to the clearing house, there is a risk that the assets of the Fund might not be fully protected in the event of the clearing member’s bankruptcy, as the Fund would be limited to recovering only a pro rata share of all available funds segregated on behalf of the clearing member’s customers for the relevant account class. The Fund is also subject to the risk that a limited number of clearing members are willing to transact on the Fund’s behalf, which heightens the risks associated with a clearing member’s default. If a clearing member defaults the Fund could lose some or all of the benefits of a transaction entered into by the Fund with the clearing member. If the Fund cannot find a clearing member to transact with on the Fund’s behalf, the Fund may be unable to effectively implement its investment strategy.
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YieldMax® MARA Performance & Distribution Target 25™ ETF | Distribution Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective to provide current income, the Fund seeks to provide income distributions on a monthly or more frequent basis. There is no assurance that the Fund will make a distribution in any given month. If the Fund does make distributions, the amounts of such distributions will likely vary greatly from one distribution to the next.
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YieldMax® MARA Performance & Distribution Target 25™ ETF | NAV Erosion Risk Due to Distributions [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] |
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YieldMax® MARA Performance & Distribution Target 25™ ETF | Equity Market Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Equity Market Risk. Common stocks are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from specific issuers. The equity securities held in the Fund’s portfolio may experience sudden, unpredictable drops in value or long periods of decline in value. This may occur because of factors that affect securities markets generally or factors affecting specific issuers, industries, or sectors in which the Fund invests. Common stocks, such as those held by the Fund, are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from issuers.
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YieldMax® MARA Performance & Distribution Target 25™ ETF | Concentration Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Concentration Risk. The Fund’s investments will be concentrated in same industry as that assigned to the Underlying Security. The value of the Fund’s shares may rise and fall more than the value of shares that invest in securities of companies in a broader range of industries.
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YieldMax® MARA Performance & Distribution Target 25™ ETF | Economic and Market Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Economic and Market Risk. Economies and financial markets throughout the world are becoming increasingly interconnected, which increases the likelihood that events or conditions in one country or region will adversely impact markets or issuers in other countries or regions. Securities in the Fund’s portfolio may underperform in comparison to securities in the general financial markets, a particular financial market, or other asset classes, due to a number of factors, including inflation (or expectations for inflation), deflation (or expectations for deflation), interest rates, global demand for particular products or resources, market instability, financial system instability, debt crises and downgrades, embargoes, tariffs, sanctions and other trade barriers, regulatory events, other governmental trade or market control programs and related geopolitical events. In addition, the value of the Fund’s investments may be negatively affected by the occurrence of global events such as war, terrorism, environmental disasters, natural disasters or events, country instability, and infectious disease epidemics or pandemics. The imposition by the U.S. of tariffs on goods imported from foreign countries and reciprocal tariffs levied on U.S. goods by those countries also may lead to volatility and instability in domestic and foreign markets.
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YieldMax® MARA Performance & Distribution Target 25™ ETF | ETF Risks [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | ETF Risks.
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YieldMax® MARA Performance & Distribution Target 25™ ETF | Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | 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”). 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.
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YieldMax® MARA Performance & Distribution Target 25™ ETF | Cash Redemption Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Cash Redemption Risk. The Fund’s investment strategy may require it to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. For example, the Fund may not be able to redeem in-kind certain securities held by the Fund (e.g., derivative instruments). In such a case, the Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used. By paying out higher annual capital gain distributions, investors may be subjected to increased capital gains taxes. Additionally, there may be brokerage costs or taxable gains or losses that may be imposed on the Fund in connection with a cash redemption that may not have occurred if the Fund had made a redemption in-kind. These costs could decrease the value of the Fund to the extent they are not offset by a transaction fee payable by an AP.
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YieldMax® MARA Performance & Distribution Target 25™ ETF | Costs of Buying or Selling Shares [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] |
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YieldMax® MARA Performance & Distribution Target 25™ ETF | Shares May Trade at Prices Other Than NAV [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] |
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YieldMax® MARA Performance & Distribution Target 25™ ETF | Trading [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Trading. Although Shares are listed on a national securities exchange, such as NYSE Arca, Inc. (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. 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 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. 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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YieldMax® MARA Performance & Distribution Target 25™ 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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YieldMax® MARA Performance & Distribution Target 25™ 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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YieldMax® MARA Performance & Distribution Target 25™ ETF | Market Capitalization Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Market Capitalization Risk.
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YieldMax® MARA Performance & Distribution Target 25™ ETF | Mid-Capitalization Investing [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] |
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YieldMax® MARA Performance & Distribution Target 25™ 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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YieldMax® MARA Performance & Distribution Target 25™ 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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YieldMax® MARA Performance & Distribution Target 25™ 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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YieldMax® MARA Performance & Distribution Target 25™ 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 options on shares of a single issuer does not exceed 25% of the Fund’s value at the close of any quarter. If the value of options on shares of a single issuer 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.
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YieldMax® MARA Performance & Distribution Target 25™ 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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YieldMax® MARA Performance & Distribution Target 25™ ETF | MARA Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | MARA Risk. The Fund invests in options contracts that are based on the value of MARA. This subjects the Fund to certain of the same risks as if it owned shares of MARA, even though it does not. By virtue of the Fund’s investments in options contracts that are based on the value of MARA, the Fund may also be subject to the following risks:
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YieldMax® MARA Performance & Distribution Target 25™ ETF | Indirect Investment in MARA Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Indirect Investment in MARA Risk. MARA is not affiliated with the Trust, the Fund, the Adviser, or their respective affiliates and is not involved with this offering in any way and has no obligation to consider your Shares in taking any corporate actions that might affect the value of Shares. Investors in the Fund will not have voting rights and will not be able to influence management of MARA but will be exposed to the performance of MARA (the underlying stock). Investors in the Fund will not have rights to receive dividends or other distributions or any other rights with respect to the underlying stock but will be subject to declines in the performance of the underlying stock.
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YieldMax® MARA Performance & Distribution Target 25™ ETF | MARA Trading Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | MARA Trading Risk. The trading price of MARA may be highly volatile and could continue to be subject to wide fluctuations in response to various factors. The stock market in general, and the market for technology companies in particular, has experienced extreme price and volume fluctuations that have often been unrelated or disproportionate to the operating performance of those companies. In particular, a large proportion of MARA may be traded by short sellers which may put pressure on the supply and demand for the common stock of MARA, further influencing volatility in its market price. Public perception and other factors outside of the control of MARA may additionally impact MARA’s stock price due to MARA garnering a disproportionate degree of public attention, regardless of actual operating performance. In addition, in the past, following periods of volatility in the overall market and the market price of a particular company’s securities, securities class action litigation has often been instituted against companies such as these. Moreover, stockholder litigation like this has been filed against MARA in the past. While MARA continues to defend such actions, any judgment against MARA, or any future stockholder litigation could result in substantial costs and a diversion of the management of MARA’s attention and resources. If MARA trading is halted, trading in Shares of the Fund may be impacted, either temporarily or indefinitely.
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YieldMax® MARA Performance & Distribution Target 25™ ETF | MARA Performance Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | MARA Performance Risk. MARA may fail to meet its publicly announced guidelines or other expectations about its business, which could cause the price of MARA to decline. MARA provides guidance regarding its expected financial and business performance, such as projections regarding sales and production, as well as anticipated future revenues, gross margins, profitability and cash flows. Correctly identifying key factors affecting business conditions and predicting future events is inherently an uncertain process, and the guidance MARA provides may not ultimately be accurate and has in the past been inaccurate in certain respects, such as the timing of new product manufacturing ramps. The guidance is based on certain assumptions such as those relating to global and local economic conditions, anticipated production and sales volumes (which generally are not linear throughout a given period), average sales prices, supplier and commodity costs, and planned cost reductions. If MARA’s guidance is not accurate or varies from actual results due to its inability to meet the assumptions or the impact on its financial performance that could occur as a result of various risks and uncertainties, the market value of common stock issued by MARA could decline significantly.
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YieldMax® MARA Performance & Distribution Target 25™ ETF | Bitcoin Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Bitcoin Risk. While the Fund will not directly invest in digital assets, it will be subject to the risks associated with Bitcoin by virtue of its investments in options contracts that reference MARA. Investing in Bitcoin exposes shareholders (such as MARA) 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. 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.
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YieldMax® MARA Performance & Distribution Target 25™ ETF | Bitcoin Mining Industry & Bitcoin Risks [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Bitcoin Mining Industry & Bitcoin Risks. Companies in the Bitcoin mining industry are subject to inherent technological and operational risks. MARA’s operations, which include validating transactions and securing the network, are heavily dependent on energy consumption, making MARA’s profitability susceptible to fluctuations in energy prices and potential regulatory changes affecting energy usage. The concentration of mining operations in regions with lower energy costs can also expose the company to local political and economic instability, potentially disrupting operations. Technological changes or advancements in mining algorithms can render MARA’s existing equipment obsolete, leading to significant capital losses. Moreover, as the reward for mining new blocks diminishes over time, the financial incentive to continue mining may decrease, potentially reducing MARA’s profitability and affecting its operational viability.
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YieldMax® MARA Performance & Distribution Target 25™ ETF | Risk Lose Money [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | The Fund may not achieve its investment objective and there is a risk that you could lose all of your money invested in the Fund. | |||
YieldMax® MARA Performance & Distribution Target 25™ ETF | Risk Nondiversified Status [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. This may increase the Fund’s volatility and cause the performance of a relatively smaller number of issuers to have a greater impact on the Fund’s performance.
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YieldMax® MSTR Performance & Distribution Target 25™ ETF | Software Industry Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Software Industry Risk. 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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YieldMax® MSTR Performance & Distribution Target 25™ 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 (including ETFs), 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 or the Fund’s other portfolio holdings, 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 Security and the derivative, which may prevent the Fund from achieving its investment objective. 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:
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YieldMax® MSTR Performance & Distribution Target 25™ ETF | Options Contracts [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | 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 are substantially influenced by the value of the Underlying Security. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. The options held by the Fund are exercisable at the strike price on their expiration date. As an option approaches its expiration date, its value typically increasingly move 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 the 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, to the extent the Fund maintains indirect exposure to an Underlying Security through the use of options contracts, as the options contracts it holds are exercised or expire it will enter into new options contracts, a practice referred to as “rolling.” If the expiring options contracts do not generate proceeds enough to cover the cost of entering into new options contracts, the Fund may experience losses.
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YieldMax® MSTR Performance & Distribution Target 25™ ETF | Counterparty Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Counterparty Risk. The Fund is subject to counterparty risk by virtue of its investments in options contracts. Transactions in some types of derivatives, including options, are required to be centrally cleared (“cleared derivatives”). In a transaction involving cleared derivatives, the Fund’s counterparty is a clearing house rather than a bank or broker. Since the Fund is not a member of clearing houses and only members of a clearing house (“clearing members”) can participate directly in the clearing house, the Fund will hold cleared derivatives through accounts at clearing members. In cleared derivatives positions, the Fund will make payments (including margin payments) to and receive payments from a clearing house through their accounts at clearing members. Customer funds held at a clearing organization in connection with any options contracts are held in a commingled omnibus account and are not identified to the name of the clearing member’s individual customers. As a result, assets deposited by the Fund with any clearing member as margin for options may, in certain circumstances, be used to satisfy losses of other clients of the Fund’s clearing member. In addition, although clearing members guarantee performance of their clients’ obligations to the clearing house, there is a risk that the assets of the Fund might not be fully protected in the event of the clearing member’s bankruptcy, as the Fund would be limited to recovering only a pro rata share of all available funds segregated on behalf of the clearing member’s customers for the relevant account class. The Fund is also subject to the risk that a limited number of clearing members are willing to transact on the Fund’s behalf, which heightens the risks associated with a clearing member’s default. If a clearing member defaults the Fund could lose some or all of the benefits of a transaction entered into by the Fund with the clearing member. If the Fund cannot find a clearing member to transact with on the Fund’s behalf, the Fund may be unable to effectively implement its investment strategy.
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YieldMax® MSTR Performance & Distribution Target 25™ ETF | Distribution Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective to provide current income, the Fund seeks to provide income distributions on a monthly or more frequent basis. There is no assurance that the Fund will make a distribution in any given month. If the Fund does make distributions, the amounts of such distributions will likely vary greatly from one distribution to the next.
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YieldMax® MSTR Performance & Distribution Target 25™ ETF | NAV Erosion Risk Due to Distributions [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] |
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YieldMax® MSTR Performance & Distribution Target 25™ ETF | Equity Market Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Equity Market Risk. Common stocks are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from specific issuers. The equity securities held in the Fund’s portfolio may experience sudden, unpredictable drops in value or long periods of decline in value. This may occur because of factors that affect securities markets generally or factors affecting specific issuers, industries, or sectors in which the Fund invests. Common stocks, such as those held by the Fund, are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from issuers.
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YieldMax® MSTR Performance & Distribution Target 25™ ETF | Concentration Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Concentration Risk. The Fund’s investments will be concentrated in same industry as that assigned to the Underlying Security. The value of the Fund’s shares may rise and fall more than the value of shares that invest in securities of companies in a broader range of industries.
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YieldMax® MSTR Performance & Distribution Target 25™ ETF | Economic and Market Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Economic and Market Risk. Economies and financial markets throughout the world are becoming increasingly interconnected, which increases the likelihood that events or conditions in one country or region will adversely impact markets or issuers in other countries or regions. Securities in the Fund’s portfolio may underperform in comparison to securities in the general financial markets, a particular financial market, or other asset classes, due to a number of factors, including inflation (or expectations for inflation), deflation (or expectations for deflation), interest rates, global demand for particular products or resources, market instability, financial system instability, debt crises and downgrades, embargoes, tariffs, sanctions and other trade barriers, regulatory events, other governmental trade or market control programs and related geopolitical events. In addition, the value of the Fund’s investments may be negatively affected by the occurrence of global events such as war, terrorism, environmental disasters, natural disasters or events, country instability, and infectious disease epidemics or pandemics. The imposition by the U.S. of tariffs on goods imported from foreign countries and reciprocal tariffs levied on U.S. goods by those countries also may lead to volatility and instability in domestic and foreign markets.
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YieldMax® MSTR Performance & Distribution Target 25™ ETF | ETF Risks [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | ETF Risks.
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YieldMax® MSTR Performance & Distribution Target 25™ ETF | Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | 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”). 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.
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YieldMax® MSTR Performance & Distribution Target 25™ ETF | Cash Redemption Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Cash Redemption Risk. The Fund’s investment strategy may require it to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. For example, the Fund may not be able to redeem in-kind certain securities held by the Fund (e.g., derivative instruments). In such a case, the Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used. By paying out higher annual capital gain distributions, investors may be subjected to increased capital gains taxes. Additionally, there may be brokerage costs or taxable gains or losses that may be imposed on the Fund in connection with a cash redemption that may not have occurred if the Fund had made a redemption in-kind. These costs could decrease the value of the Fund to the extent they are not offset by a transaction fee payable by an AP.
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YieldMax® MSTR Performance & Distribution Target 25™ ETF | Costs of Buying or Selling Shares [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] |
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YieldMax® MSTR Performance & Distribution Target 25™ ETF | Shares May Trade at Prices Other Than NAV [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] |
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YieldMax® MSTR Performance & Distribution Target 25™ ETF | Trading [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Trading. Although Shares are listed on a national securities exchange, such as NYSE Arca, Inc. (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. 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 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. 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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YieldMax® MSTR Performance & Distribution Target 25™ 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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YieldMax® MSTR Performance & Distribution Target 25™ 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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YieldMax® MSTR Performance & Distribution Target 25™ ETF | Market Capitalization Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Market Capitalization Risk.
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YieldMax® MSTR Performance & Distribution Target 25™ ETF | Mid-Capitalization Investing [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] |
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YieldMax® MSTR Performance & Distribution Target 25™ 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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YieldMax® MSTR Performance & Distribution Target 25™ 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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YieldMax® MSTR Performance & Distribution Target 25™ 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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YieldMax® MSTR Performance & Distribution Target 25™ 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 options on shares of a single issuer does not exceed 25% of the Fund’s value at the close of any quarter. If the value of options on shares of a single issuer 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.
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YieldMax® MSTR Performance & Distribution Target 25™ 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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YieldMax® MSTR Performance & Distribution Target 25™ ETF | Bitcoin Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Bitcoin Risk. While the Fund will not directly invest in digital assets, it will be subject to the risks associated with Bitcoin by virtue of its investments in options contracts that reference MSTR. Investing in Bitcoin exposes shareholders (such as MSTR) 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. 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.
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YieldMax® MSTR Performance & Distribution Target 25™ ETF | MSTR Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | MSTR Risk. The Fund invests in options contracts that are based on the value of MSTR. This subjects the Fund to certain of the same risks as if it owned shares of MSTR, even though it does not. By virtue of the Fund’s investments in options contracts that are based on the value of MSTR, the Fund may also be subject to the following risks:
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YieldMax® MSTR Performance & Distribution Target 25™ ETF | Indirect Investment in MSTR Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Indirect Investment in MSTR Risk. MSTR is not affiliated with the Trust, the Fund, the Adviser, or their respective affiliates and is not involved with this offering in any way and has no obligation to consider your Shares in taking any corporate actions that might affect the value of Shares. Investors in the Fund will not have voting rights and will not be able to influence management of MSTR but will be exposed to the performance of MSTR (the underlying stock). Investors in the Fund will not have rights to receive dividends or other distributions or any other rights with respect to the underlying stock but will be subject to declines in the performance of the underlying stock.
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YieldMax® MSTR Performance & Distribution Target 25™ ETF | MSTR Trading Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | MSTR Trading Risk. The trading price of MSTR may be highly volatile and could continue to be subject to wide fluctuations in response to various factors. The stock market in general, and the market for technology companies in particular, has experienced extreme price and volume fluctuations that have often been unrelated or disproportionate to the operating performance of those companies. In particular, a large proportion of MSTR may be traded by short sellers which may put pressure on the supply and demand for the common stock of MSTR, further influencing volatility in its market price. Public perception and other factors outside of the control of MSTR may additionally impact MSTR’s stock price due to MSTR garnering a disproportionate degree of public attention, regardless of actual operating performance. In addition, in the past, following periods of volatility in the overall market and the market price of a particular company’s securities, securities class action litigation has often been instituted against companies such as these. Moreover, stockholder litigation like this has been filed against MSTR in the past. While MSTR continues to defend such actions, any judgment against MSTR, or any future stockholder litigation could result in substantial costs and a diversion of the management of MSTR’s attention and resources. If MSTR trading is halted, trading in Shares of the Fund may be impacted, either temporarily or indefinitely.
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YieldMax® MSTR Performance & Distribution Target 25™ ETF | MSTR Performance Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | MSTR Performance Risk. MSTR may fail to meet its publicly announced guidelines or other expectations about its business, which could cause the price of MSTR to decline. MSTR provides guidance regarding its expected financial and business performance, such as projections regarding sales and production, as well as anticipated future revenues, gross margins, profitability and cash flows. Correctly identifying key factors affecting business conditions and predicting future events is inherently an uncertain process, and the guidance MSTR provides may not ultimately be accurate and has in the past been inaccurate in certain respects, such as the timing of new product manufacturing ramps. The guidance is based on certain assumptions such as those relating to global and local economic conditions, anticipated production and sales volumes (which generally are not linear throughout a given period), average sales prices, supplier and commodity costs, and planned cost reductions. If MSTR’s guidance is not accurate or varies from actual results due to its inability to meet the assumptions or the impact on its financial performance that could occur as a result of various risks and uncertainties, the market value of common stock issued by MSTR could decline significantly.
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YieldMax® MSTR Performance & Distribution Target 25™ ETF | Risk Lose Money [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | The Fund may not achieve its investment objective and there is a risk that you could lose all of your money invested in the Fund. | |||
YieldMax® MSTR Performance & Distribution Target 25™ ETF | Risk Nondiversified Status [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. This may increase the Fund’s volatility and cause the performance of a relatively smaller number of issuers to have a greater impact on the Fund’s performance.
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YieldMax® NVDA Performance & Distribution Target 25™ ETF | Competition Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Competition Risk. NVDA’s target markets remain competitive, and competition may intensify with expanding and changing product and service offerings, industry standards, customer and market needs, new entrants and consolidations. NVDA’s competitors’ products, services and technologies may be cheaper or provide better functionality or features than NVDA’s products and services, which has resulted and may in the future result in lower-than-expected selling prices or demand NVDA’s products.
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YieldMax® NVDA Performance & Distribution Target 25™ 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 (including ETFs), 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 or the Fund’s other portfolio holdings, 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 Security and the derivative, which may prevent the Fund from achieving its investment objective. 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:
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YieldMax® NVDA Performance & Distribution Target 25™ ETF | Options Contracts [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | 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 are substantially influenced by the value of the Underlying Security. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. The options held by the Fund are exercisable at the strike price on their expiration date. As an option approaches its expiration date, its value typically increasingly move 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 the 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, to the extent the Fund maintains indirect exposure to an Underlying Security through the use of options contracts, as the options contracts it holds are exercised or expire it will enter into new options contracts, a practice referred to as “rolling.” If the expiring options contracts do not generate proceeds enough to cover the cost of entering into new options contracts, the Fund may experience losses.
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YieldMax® NVDA Performance & Distribution Target 25™ ETF | Counterparty Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Counterparty Risk. The Fund is subject to counterparty risk by virtue of its investments in options contracts. Transactions in some types of derivatives, including options, are required to be centrally cleared (“cleared derivatives”). In a transaction involving cleared derivatives, the Fund’s counterparty is a clearing house rather than a bank or broker. Since the Fund is not a member of clearing houses and only members of a clearing house (“clearing members”) can participate directly in the clearing house, the Fund will hold cleared derivatives through accounts at clearing members. In cleared derivatives positions, the Fund will make payments (including margin payments) to and receive payments from a clearing house through their accounts at clearing members. Customer funds held at a clearing organization in connection with any options contracts are held in a commingled omnibus account and are not identified to the name of the clearing member’s individual customers. As a result, assets deposited by the Fund with any clearing member as margin for options may, in certain circumstances, be used to satisfy losses of other clients of the Fund’s clearing member. In addition, although clearing members guarantee performance of their clients’ obligations to the clearing house, there is a risk that the assets of the Fund might not be fully protected in the event of the clearing member’s bankruptcy, as the Fund would be limited to recovering only a pro rata share of all available funds segregated on behalf of the clearing member’s customers for the relevant account class. The Fund is also subject to the risk that a limited number of clearing members are willing to transact on the Fund’s behalf, which heightens the risks associated with a clearing member’s default. If a clearing member defaults the Fund could lose some or all of the benefits of a transaction entered into by the Fund with the clearing member. If the Fund cannot find a clearing member to transact with on the Fund’s behalf, the Fund may be unable to effectively implement its investment strategy.
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YieldMax® NVDA Performance & Distribution Target 25™ ETF | Distribution Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective to provide current income, the Fund seeks to provide income distributions on a monthly or more frequent basis. There is no assurance that the Fund will make a distribution in any given month. If the Fund does make distributions, the amounts of such distributions will likely vary greatly from one distribution to the next.
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YieldMax® NVDA Performance & Distribution Target 25™ ETF | NAV Erosion Risk Due to Distributions [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] |
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YieldMax® NVDA Performance & Distribution Target 25™ ETF | Equity Market Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Equity Market Risk. Common stocks are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from specific issuers. The equity securities held in the Fund’s portfolio may experience sudden, unpredictable drops in value or long periods of decline in value. This may occur because of factors that affect securities markets generally or factors affecting specific issuers, industries, or sectors in which the Fund invests. Common stocks, such as those held by the Fund, are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from issuers.
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YieldMax® NVDA Performance & Distribution Target 25™ ETF | Concentration Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Concentration Risk. The Fund’s investments will be concentrated in same industry as that assigned to the Underlying Security. The value of the Fund’s shares may rise and fall more than the value of shares that invest in securities of companies in a broader range of industries.
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YieldMax® NVDA Performance & Distribution Target 25™ ETF | Economic and Market Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Economic and Market Risk. Economies and financial markets throughout the world are becoming increasingly interconnected, which increases the likelihood that events or conditions in one country or region will adversely impact markets or issuers in other countries or regions. Securities in the Fund’s portfolio may underperform in comparison to securities in the general financial markets, a particular financial market, or other asset classes, due to a number of factors, including inflation (or expectations for inflation), deflation (or expectations for deflation), interest rates, global demand for particular products or resources, market instability, financial system instability, debt crises and downgrades, embargoes, tariffs, sanctions and other trade barriers, regulatory events, other governmental trade or market control programs and related geopolitical events. In addition, the value of the Fund’s investments may be negatively affected by the occurrence of global events such as war, terrorism, environmental disasters, natural disasters or events, country instability, and infectious disease epidemics or pandemics. The imposition by the U.S. of tariffs on goods imported from foreign countries and reciprocal tariffs levied on U.S. goods by those countries also may lead to volatility and instability in domestic and foreign markets.
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YieldMax® NVDA Performance & Distribution Target 25™ ETF | ETF Risks [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | ETF Risks.
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YieldMax® NVDA Performance & Distribution Target 25™ ETF | Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | 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”). 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.
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YieldMax® NVDA Performance & Distribution Target 25™ ETF | Cash Redemption Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Cash Redemption Risk. The Fund’s investment strategy may require it to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. For example, the Fund may not be able to redeem in-kind certain securities held by the Fund (e.g., derivative instruments). In such a case, the Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used. By paying out higher annual capital gain distributions, investors may be subjected to increased capital gains taxes. Additionally, there may be brokerage costs or taxable gains or losses that may be imposed on the Fund in connection with a cash redemption that may not have occurred if the Fund had made a redemption in-kind. These costs could decrease the value of the Fund to the extent they are not offset by a transaction fee payable by an AP.
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YieldMax® NVDA Performance & Distribution Target 25™ ETF | Costs of Buying or Selling Shares [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] |
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YieldMax® NVDA Performance & Distribution Target 25™ ETF | Shares May Trade at Prices Other Than NAV [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] |
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YieldMax® NVDA Performance & Distribution Target 25™ ETF | Trading [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Trading. Although Shares are listed on a national securities exchange, such as NYSE Arca, Inc. (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. 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 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. 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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YieldMax® NVDA Performance & Distribution Target 25™ 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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YieldMax® NVDA Performance & Distribution Target 25™ 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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YieldMax® NVDA Performance & Distribution Target 25™ ETF | Market Capitalization Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Market Capitalization Risk.
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YieldMax® NVDA Performance & Distribution Target 25™ 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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YieldMax® NVDA Performance & Distribution Target 25™ 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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YieldMax® NVDA Performance & Distribution Target 25™ 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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YieldMax® NVDA Performance & Distribution Target 25™ 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 options on shares of a single issuer does not exceed 25% of the Fund’s value at the close of any quarter. If the value of options on shares of a single issuer 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.
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YieldMax® NVDA Performance & Distribution Target 25™ 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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YieldMax® NVDA Performance & Distribution Target 25™ ETF | Semiconductor Company Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Semiconductor Company Risk. Competitive pressures may have a significant effect on the financial condition of semiconductor companies and, as product cycles shorten and manufacturing capacity increases, these companies may become increasingly subject to aggressive pricing, which hampers profitability. Reduced demand for end-user products, under-utilization of manufacturing capacity, and other factors could adversely impact the operating results of companies in the semiconductor sector. Semiconductor companies typically face high capital costs and may be heavily dependent on intellectual property rights. The semiconductor sector is highly cyclical, which may cause the operating results of many semiconductor companies to vary significantly. The stock prices of companies in the semiconductor sector have been and likely will continue to be extremely volatile.
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YieldMax® NVDA Performance & Distribution Target 25™ ETF | Large-Capitalization Investing [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] |
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YieldMax® NVDA Performance & Distribution Target 25™ ETF | NVDA Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | NVDA Risk. The Fund invests in options contracts that are based on the value of NVDA. This subjects the Fund to certain of the same risks as if it owned shares of NVDA, even though it does not. By virtue of the Fund’s investments in options contracts that are based on the value of NVDA, the Fund may also be subject to the following risks:
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YieldMax® NVDA Performance & Distribution Target 25™ ETF | Indirect Investment in NVDA Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Indirect Investment in NVDA Risk. Nvidia Corporation is not affiliated with the Trust, the Fund, the Adviser, or their respective affiliates and is not involved with this offering in any way and has no obligation to consider your Shares in taking any corporate actions that might affect the value of Shares. Investors in the Fund will not have voting rights and will not be able to influence management of Nvidia Corporation. but will be exposed to the performance of NVDA (the underlying stock). Investors in the Fund will not have rights to receive dividends or other distributions or any other rights with respect to the underlying stock but will be subject to declines in the performance of the underlying stock.
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YieldMax® NVDA Performance & Distribution Target 25™ ETF | NVDA Trading Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | NVDA Trading Risk. The trading price of NVDA may be highly volatile and could continue to be subject to wide fluctuations in response to various factors. The stock market in general, and the market for technology companies in particular, has experienced extreme price and volume fluctuations that have often been unrelated or disproportionate to the operating performance of those companies. In particular, a large proportion of NVDA may be traded by short sellers which may put pressure on the supply and demand for the common stock of Nvidia Corporation, further influencing volatility in its market price. Public perception and other factors outside of the control of Nvidia Corporation may additionally impact NVDA’s stock price due to Nvidia Corporation garnering a disproportionate degree of public attention, regardless of actual operating performance. In addition, in the past, following periods of volatility in the overall market and the market price of a particular company’s securities, securities class action litigation has often been instituted against companies such as these. Moreover, stockholder litigation like this has been filed against Nvidia Corporation in the past. While Nvidia Corporation continues to defend such actions, any judgment against Nvidia Corporation, or any future stockholder litigation could result in substantial costs and a diversion of the management of Nvidia Corporation’s attention and resources. If NVDA trading is halted, trading in Shares of the NVDA Fund may be impacted, either temporarily of indefinitely.
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YieldMax® NVDA Performance & Distribution Target 25™ ETF | Nvidia Corporation Performance Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Nvidia Corporation Performance Risk. Nvidia Corporation may fail to meet its publicly announced guidelines or other expectations about its business, which could cause the price of NVDA to decline. Nvidia Corporation provides guidance regarding its expected financial and business performance, such as projections regarding sales and production, as well as anticipated future revenues, gross margins, profitability and cash flows. Correctly identifying key factors affecting business conditions and predicting future events is inherently an uncertain process, and the guidance Nvidia Corporation provides may not ultimately be accurate and has in the past been inaccurate in certain respects, such as the timing of new product manufacturing ramps. The guidance is based on certain assumptions such as those relating to global and local economic conditions, anticipated production and sales volumes (which generally are not linear throughout a given period), average sales prices, supplier and commodity costs, and planned cost reductions. If Nvidia Corporation’s guidance is not accurate or varies from actual results due to its inability to meet the assumptions or the impact on its financial performance that could occur as a result of various risks and uncertainties, the market value of common stock issued by Nvidia Corporation could decline significantly.
NVDA’s accelerated computing platforms address four large markets: Gaming, Data Center, Professional Visualization, and Automotive. These markets experience rapid changes in technology, customer requirements, new product introductions and enhancements, and industry standards.
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YieldMax® NVDA Performance & Distribution Target 25™ ETF | Risk Lose Money [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | The Fund may not achieve its investment objective and there is a risk that you could lose all of your money invested in the Fund. | |||
YieldMax® NVDA Performance & Distribution Target 25™ ETF | Risk Nondiversified Status [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. This may increase the Fund’s volatility and cause the performance of a relatively smaller number of issuers to have a greater impact on the Fund’s performance.
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YieldMax® PLTR Performance & Distribution Target 25™ ETF | Software Industry Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Software Industry Risk. 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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YieldMax® PLTR Performance & Distribution Target 25™ ETF | Customer Concentration Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Customer Concentration Risk. Historically, existing customers have expanded their relationships with PLTR, which has resulted in a limited number of customers accounting for a substantial portion of PLTR’s revenue. If existing customers do not make subsequent purchases from PLTR or renew their contracts with PLTR, or if PLTR’s relationships with its largest customers are impaired or terminated, PLTR’s revenue could decline, and PLTR’s results of operations would be adversely impacted.
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YieldMax® PLTR Performance & Distribution Target 25™ 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 (including ETFs), 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 or the Fund’s other portfolio holdings, 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 Security and the derivative, which may prevent the Fund from achieving its investment objective. 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:
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YieldMax® PLTR Performance & Distribution Target 25™ ETF | Options Contracts [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | 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 are substantially influenced by the value of the Underlying Security. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. The options held by the Fund are exercisable at the strike price on their expiration date. As an option approaches its expiration date, its value typically increasingly move 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 the 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, to the extent the Fund maintains indirect exposure to an Underlying Security through the use of options contracts, as the options contracts it holds are exercised or expire it will enter into new options contracts, a practice referred to as “rolling.” If the expiring options contracts do not generate proceeds enough to cover the cost of entering into new options contracts, the Fund may experience losses.
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YieldMax® PLTR Performance & Distribution Target 25™ ETF | Counterparty Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Counterparty Risk. The Fund is subject to counterparty risk by virtue of its investments in options contracts. Transactions in some types of derivatives, including options, are required to be centrally cleared (“cleared derivatives”). In a transaction involving cleared derivatives, the Fund’s counterparty is a clearing house rather than a bank or broker. Since the Fund is not a member of clearing houses and only members of a clearing house (“clearing members”) can participate directly in the clearing house, the Fund will hold cleared derivatives through accounts at clearing members. In cleared derivatives positions, the Fund will make payments (including margin payments) to and receive payments from a clearing house through their accounts at clearing members. Customer funds held at a clearing organization in connection with any options contracts are held in a commingled omnibus account and are not identified to the name of the clearing member’s individual customers. As a result, assets deposited by the Fund with any clearing member as margin for options may, in certain circumstances, be used to satisfy losses of other clients of the Fund’s clearing member. In addition, although clearing members guarantee performance of their clients’ obligations to the clearing house, there is a risk that the assets of the Fund might not be fully protected in the event of the clearing member’s bankruptcy, as the Fund would be limited to recovering only a pro rata share of all available funds segregated on behalf of the clearing member’s customers for the relevant account class. The Fund is also subject to the risk that a limited number of clearing members are willing to transact on the Fund’s behalf, which heightens the risks associated with a clearing member’s default. If a clearing member defaults the Fund could lose some or all of the benefits of a transaction entered into by the Fund with the clearing member. If the Fund cannot find a clearing member to transact with on the Fund’s behalf, the Fund may be unable to effectively implement its investment strategy.
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YieldMax® PLTR Performance & Distribution Target 25™ ETF | Distribution Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective to provide current income, the Fund seeks to provide income distributions on a monthly or more frequent basis. There is no assurance that the Fund will make a distribution in any given month. If the Fund does make distributions, the amounts of such distributions will likely vary greatly from one distribution to the next.
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YieldMax® PLTR Performance & Distribution Target 25™ ETF | NAV Erosion Risk Due to Distributions [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] |
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YieldMax® PLTR Performance & Distribution Target 25™ ETF | Equity Market Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Equity Market Risk. Common stocks are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from specific issuers. The equity securities held in the Fund’s portfolio may experience sudden, unpredictable drops in value or long periods of decline in value. This may occur because of factors that affect securities markets generally or factors affecting specific issuers, industries, or sectors in which the Fund invests. Common stocks, such as those held by the Fund, are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from issuers.
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YieldMax® PLTR Performance & Distribution Target 25™ ETF | Concentration Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Concentration Risk. The Fund’s investments will be concentrated in same industry as that assigned to the Underlying Security. The value of the Fund’s shares may rise and fall more than the value of shares that invest in securities of companies in a broader range of industries.
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YieldMax® PLTR Performance & Distribution Target 25™ ETF | Economic and Market Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Economic and Market Risk. Economies and financial markets throughout the world are becoming increasingly interconnected, which increases the likelihood that events or conditions in one country or region will adversely impact markets or issuers in other countries or regions. Securities in the Fund’s portfolio may underperform in comparison to securities in the general financial markets, a particular financial market, or other asset classes, due to a number of factors, including inflation (or expectations for inflation), deflation (or expectations for deflation), interest rates, global demand for particular products or resources, market instability, financial system instability, debt crises and downgrades, embargoes, tariffs, sanctions and other trade barriers, regulatory events, other governmental trade or market control programs and related geopolitical events. In addition, the value of the Fund’s investments may be negatively affected by the occurrence of global events such as war, terrorism, environmental disasters, natural disasters or events, country instability, and infectious disease epidemics or pandemics. The imposition by the U.S. of tariffs on goods imported from foreign countries and reciprocal tariffs levied on U.S. goods by those countries also may lead to volatility and instability in domestic and foreign markets.
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YieldMax® PLTR Performance & Distribution Target 25™ ETF | ETF Risks [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | ETF Risks.
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YieldMax® PLTR Performance & Distribution Target 25™ ETF | Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | 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”). 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.
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YieldMax® PLTR Performance & Distribution Target 25™ ETF | Cash Redemption Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Cash Redemption Risk. The Fund’s investment strategy may require it to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. For example, the Fund may not be able to redeem in-kind certain securities held by the Fund (e.g., derivative instruments). In such a case, the Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used. By paying out higher annual capital gain distributions, investors may be subjected to increased capital gains taxes. Additionally, there may be brokerage costs or taxable gains or losses that may be imposed on the Fund in connection with a cash redemption that may not have occurred if the Fund had made a redemption in-kind. These costs could decrease the value of the Fund to the extent they are not offset by a transaction fee payable by an AP.
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YieldMax® PLTR Performance & Distribution Target 25™ ETF | Costs of Buying or Selling Shares [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] |
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YieldMax® PLTR Performance & Distribution Target 25™ ETF | Shares May Trade at Prices Other Than NAV [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] |
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YieldMax® PLTR Performance & Distribution Target 25™ ETF | Trading [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Trading. Although Shares are listed on a national securities exchange, such as NYSE Arca, Inc. (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. 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 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. 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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YieldMax® PLTR Performance & Distribution Target 25™ 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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YieldMax® PLTR Performance & Distribution Target 25™ 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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YieldMax® PLTR Performance & Distribution Target 25™ ETF | Market Capitalization Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Market Capitalization Risk.
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YieldMax® PLTR Performance & Distribution Target 25™ 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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YieldMax® PLTR Performance & Distribution Target 25™ 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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YieldMax® PLTR Performance & Distribution Target 25™ 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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YieldMax® PLTR Performance & Distribution Target 25™ 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 options on shares of a single issuer does not exceed 25% of the Fund’s value at the close of any quarter. If the value of options on shares of a single issuer 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.
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YieldMax® PLTR Performance & Distribution Target 25™ 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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YieldMax® PLTR Performance & Distribution Target 25™ ETF | Large-Capitalization Investing [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] |
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YieldMax® PLTR Performance & Distribution Target 25™ ETF | PLTR Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | PLTR Risk. The Fund invests in options contracts that are based on the value of PLTR. This subjects the Fund to certain of the same risks as if it owned shares of PLTR, even though it does not. By virtue of the Fund’s investments in options contracts that are based on the value of PLTR, the Fund may also be subject to the following risks:
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YieldMax® PLTR Performance & Distribution Target 25™ ETF | Indirect Investment in PLTR Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Indirect Investment in PLTR Risk. PLTR is not affiliated with the Trust, the Fund, the Adviser, or their respective affiliates and is not involved with this offering in any way and has no obligation to consider your Shares in taking any corporate actions that might affect the value of Shares. Investors in the Fund will not have voting rights and will not be able to influence management of PLTR but will be exposed to the performance of PLTR (the Underlying Security). Investors in the Fund will not have rights to receive dividends or other distributions or any other rights with respect to the underlying stock but will be subject to declines in the performance of the underlying stock.
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YieldMax® PLTR Performance & Distribution Target 25™ ETF | PLTR Trading Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | PLTR Trading Risk. The trading price of PLTR may be highly volatile and could continue to be subject to wide fluctuations in response to various factors. The stock market in general, and the market for technology companies in particular, has experienced extreme price and volume fluctuations that have often been unrelated or disproportionate to the operating performance of those companies. In particular, a large proportion of PLTR may be traded by short sellers which may put pressure on the supply and demand for the common stock of PLTR, further influencing volatility in its market price. Public perception and other factors outside of the control of PLTR may additionally impact PLTR’s stock price due to PLTR garnering a disproportionate degree of public attention, regardless of actual operating performance. In addition, in the past, following periods of volatility in the overall market and the market price of a particular company’s securities, securities class action litigation has often been instituted against companies such as these. Moreover, stockholder litigation like this has been filed against PLTR in the past. While PLTR continues to defend such actions, any judgment against PLTR, or any future stockholder litigation could result in substantial costs and a diversion of the management of PLTR’s attention and resources. If PLTR trading is halted, trading in Shares of the Fund may be impacted, either temporarily or indefinitely.
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YieldMax® PLTR Performance & Distribution Target 25™ ETF | PLTR Performance Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | PLTR Performance Risk. PLTR may fail to meet its publicly announced guidelines or other expectations about its business, which could cause the price of PLTR to decline. PLTR provides guidance regarding its expected financial and business performance, such as projections regarding sales and production, as well as anticipated future revenues, gross margins, profitability and cash flows. Correctly identifying key factors affecting business conditions and predicting future events is inherently an uncertain process, and the guidance PLTR provides may not ultimately be accurate and has in the past been inaccurate in certain respects, such as the timing of new product manufacturing ramps. The guidance is based on certain assumptions such as those relating to global and local economic conditions, anticipated production and sales volumes (which generally are not linear throughout a given period), average sales prices, supplier and commodity costs, and planned cost reductions. If PLTR’s guidance is not accurate or varies from actual results due to its inability to meet the assumptions or the impact on its financial performance that could occur as a result of various risks and uncertainties, the market value of common stock issued by PLTR could decline significantly.
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YieldMax® PLTR Performance & Distribution Target 25™ ETF | AI Platform Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | AI Platform Risk. PLTR has launched an AI (artificial intelligence) platform, which subjects PLTR to additional risks, including challenges in developing and deploying new technologies to meet customer needs and ensuring compatibility with third-party products and services. PLTR may struggle to hire, retain, and train qualified personnel, which is crucial for meeting customer demand. The use of AI could lead to reputational harm or liability issues, and there may be difficulties in obtaining, maintaining, protecting, and enforcing intellectual property rights. Additionally, the platform could encounter real or perceived errors, failures, defects, or bugs, and reliance on third-party technology could pose risks if it becomes difficult to replace or causes errors. Finally, PLTR’s AI platform will be subject to complex and evolving U.S. and non-U.S. laws and regulations regarding privacy, data protection, security, and technology protection.
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YieldMax® PLTR Performance & Distribution Target 25™ ETF | Operating Loss Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Operating Loss Risk. Although PLTR has achieved profitability in accordance with U.S. generally accepted accounting principles (“GAAP”) in recent quarters, PLTR incurred net losses in each period from its inception through the third quarter of 2022. PLTR may not maintain profitability in future periods or, if it is profitable, it may not fully achieve its profitability targets. In addition, PLTR anticipates that its operating expenses will continue to increase in the future. Any failure by PLTR to maintain or increase profitability in the future or achieve profitability targets could adversely affect its business, financial condition, and results of operations.
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YieldMax® PLTR Performance & Distribution Target 25™ ETF | Risk Lose Money [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | The Fund may not achieve its investment objective and there is a risk that you could lose all of your money invested in the Fund. | |||
YieldMax® PLTR Performance & Distribution Target 25™ ETF | Risk Nondiversified Status [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. This may increase the Fund’s volatility and cause the performance of a relatively smaller number of issuers to have a greater impact on the Fund’s performance.
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YieldMax® SMCI Performance & Distribution Target 25™ 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 (including ETFs), 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 or the Fund’s other portfolio holdings, 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 Security and the derivative, which may prevent the Fund from achieving its investment objective. 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:
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YieldMax® SMCI Performance & Distribution Target 25™ ETF | Options Contracts [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | 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 are substantially influenced by the value of the Underlying Security. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. The options held by the Fund are exercisable at the strike price on their expiration date. As an option approaches its expiration date, its value typically increasingly move 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 the 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, to the extent the Fund maintains indirect exposure to an Underlying Security through the use of options contracts, as the options contracts it holds are exercised or expire it will enter into new options contracts, a practice referred to as “rolling.” If the expiring options contracts do not generate proceeds enough to cover the cost of entering into new options contracts, the Fund may experience losses.
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YieldMax® SMCI Performance & Distribution Target 25™ ETF | Counterparty Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Counterparty Risk. The Fund is subject to counterparty risk by virtue of its investments in options contracts. Transactions in some types of derivatives, including options, are required to be centrally cleared (“cleared derivatives”). In a transaction involving cleared derivatives, the Fund’s counterparty is a clearing house rather than a bank or broker. Since the Fund is not a member of clearing houses and only members of a clearing house (“clearing members”) can participate directly in the clearing house, the Fund will hold cleared derivatives through accounts at clearing members. In cleared derivatives positions, the Fund will make payments (including margin payments) to and receive payments from a clearing house through their accounts at clearing members. Customer funds held at a clearing organization in connection with any options contracts are held in a commingled omnibus account and are not identified to the name of the clearing member’s individual customers. As a result, assets deposited by the Fund with any clearing member as margin for options may, in certain circumstances, be used to satisfy losses of other clients of the Fund’s clearing member. In addition, although clearing members guarantee performance of their clients’ obligations to the clearing house, there is a risk that the assets of the Fund might not be fully protected in the event of the clearing member’s bankruptcy, as the Fund would be limited to recovering only a pro rata share of all available funds segregated on behalf of the clearing member’s customers for the relevant account class. The Fund is also subject to the risk that a limited number of clearing members are willing to transact on the Fund’s behalf, which heightens the risks associated with a clearing member’s default. If a clearing member defaults the Fund could lose some or all of the benefits of a transaction entered into by the Fund with the clearing member. If the Fund cannot find a clearing member to transact with on the Fund’s behalf, the Fund may be unable to effectively implement its investment strategy.
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YieldMax® SMCI Performance & Distribution Target 25™ ETF | Distribution Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective to provide current income, the Fund seeks to provide income distributions on a monthly or more frequent basis. There is no assurance that the Fund will make a distribution in any given month. If the Fund does make distributions, the amounts of such distributions will likely vary greatly from one distribution to the next.
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YieldMax® SMCI Performance & Distribution Target 25™ ETF | NAV Erosion Risk Due to Distributions [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] |
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YieldMax® SMCI Performance & Distribution Target 25™ ETF | Equity Market Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Equity Market Risk. Common stocks are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from specific issuers. The equity securities held in the Fund’s portfolio may experience sudden, unpredictable drops in value or long periods of decline in value. This may occur because of factors that affect securities markets generally or factors affecting specific issuers, industries, or sectors in which the Fund invests. Common stocks, such as those held by the Fund, are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from issuers.
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YieldMax® SMCI Performance & Distribution Target 25™ ETF | Concentration Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Concentration Risk. The Fund’s investments will be concentrated in same industry as that assigned to the Underlying Security. The value of the Fund’s shares may rise and fall more than the value of shares that invest in securities of companies in a broader range of industries.
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YieldMax® SMCI Performance & Distribution Target 25™ ETF | Economic and Market Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Economic and Market Risk. Economies and financial markets throughout the world are becoming increasingly interconnected, which increases the likelihood that events or conditions in one country or region will adversely impact markets or issuers in other countries or regions. Securities in the Fund’s portfolio may underperform in comparison to securities in the general financial markets, a particular financial market, or other asset classes, due to a number of factors, including inflation (or expectations for inflation), deflation (or expectations for deflation), interest rates, global demand for particular products or resources, market instability, financial system instability, debt crises and downgrades, embargoes, tariffs, sanctions and other trade barriers, regulatory events, other governmental trade or market control programs and related geopolitical events. In addition, the value of the Fund’s investments may be negatively affected by the occurrence of global events such as war, terrorism, environmental disasters, natural disasters or events, country instability, and infectious disease epidemics or pandemics. The imposition by the U.S. of tariffs on goods imported from foreign countries and reciprocal tariffs levied on U.S. goods by those countries also may lead to volatility and instability in domestic and foreign markets.
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YieldMax® SMCI Performance & Distribution Target 25™ ETF | ETF Risks [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | ETF Risks.
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YieldMax® SMCI Performance & Distribution Target 25™ ETF | Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | 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”). 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.
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YieldMax® SMCI Performance & Distribution Target 25™ ETF | Cash Redemption Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Cash Redemption Risk. The Fund’s investment strategy may require it to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. For example, the Fund may not be able to redeem in-kind certain securities held by the Fund (e.g., derivative instruments). In such a case, the Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used. By paying out higher annual capital gain distributions, investors may be subjected to increased capital gains taxes. Additionally, there may be brokerage costs or taxable gains or losses that may be imposed on the Fund in connection with a cash redemption that may not have occurred if the Fund had made a redemption in-kind. These costs could decrease the value of the Fund to the extent they are not offset by a transaction fee payable by an AP.
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YieldMax® SMCI Performance & Distribution Target 25™ ETF | Costs of Buying or Selling Shares [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] |
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YieldMax® SMCI Performance & Distribution Target 25™ ETF | Shares May Trade at Prices Other Than NAV [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] |
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YieldMax® SMCI Performance & Distribution Target 25™ ETF | Trading [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Trading. Although Shares are listed on a national securities exchange, such as NYSE Arca, Inc. (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. 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 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. 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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YieldMax® SMCI Performance & Distribution Target 25™ 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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YieldMax® SMCI Performance & Distribution Target 25™ 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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YieldMax® SMCI Performance & Distribution Target 25™ ETF | Market Capitalization Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Market Capitalization Risk.
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YieldMax® SMCI Performance & Distribution Target 25™ 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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YieldMax® SMCI Performance & Distribution Target 25™ 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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YieldMax® SMCI Performance & Distribution Target 25™ 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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YieldMax® SMCI Performance & Distribution Target 25™ 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 options on shares of a single issuer does not exceed 25% of the Fund’s value at the close of any quarter. If the value of options on shares of a single issuer 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.
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YieldMax® SMCI Performance & Distribution Target 25™ 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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YieldMax® SMCI Performance & Distribution Target 25™ ETF | Large-Capitalization Investing [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] |
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YieldMax® SMCI Performance & Distribution Target 25™ ETF | SMCI Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | SMCI Risk. The Fund invests in options contracts that are based on the value of SMCI. This subjects the Fund to certain of the same risks as if it owned shares of SMCI, even though it does not. By virtue of the Fund’s investments in options contracts that are based on the value of SMCI, the Fund may also be subject to the following risks:
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YieldMax® SMCI Performance & Distribution Target 25™ ETF | Indirect Investment in SMCI Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Indirect Investment in SMCI Risk. SMCI is not affiliated with the Trust, the Fund, or the Adviser, or their respective affiliates and is not involved with this offering in any way and has no obligation to consider your Shares in taking any corporate actions that might affect the value of Shares. Investors in the Fund will not have voting rights and will not be able to influence management of SMCI but will be exposed to the performance of SMCI (an Underlying Security). Investors in the Fund will not have the right to receive dividends or other distributions or any other rights with respect to the Underlying Security but will be subject to declines in the performance of the Underlying Security.
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YieldMax® SMCI Performance & Distribution Target 25™ ETF | SMCI Trading Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | SMCI Trading Risk. The trading price of SMCI may demonstrate volatility and wide fluctuations due to various factors inherent in the technology industry. Unlike some other sectors, the technology industry, including SMCI, is prone to significant price and volume fluctuations, occasionally unrelated to operational performance. Short sellers may also play a significant role in trading SMCI, impacting supply and demand dynamics and contributing to market price volatility. Moreover, external factors and public perception may disproportionately influence SMCI’s share price within the technology sector, with heightened public attention notwithstanding operational performance. Furthermore, SMCI, like other tech companies, may encounter securities class action litigation during periods of market volatility, potentially resulting in substantial costs and diverting management’s attention and resources. In the event of a trading halt for SMCI, trading in Shares of the Fund may be impacted, either temporarily or indefinitely.
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YieldMax® SMCI Performance & Distribution Target 25™ ETF | SMCI Performance Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | SMCI Performance Risk. SMCI may fail to meet its publicly announced guidelines or other expectations about its business, which could cause the price of SMCI to decline. SMCI provides guidance regarding its expected financial and business performance, such as projections regarding sales and production, as well as anticipated future revenues, gross margins, profitability and cash flows. Correctly identifying key factors affecting business conditions and predicting future events is inherently an uncertain process, and the guidance SMCI provides may not ultimately be accurate and has in the past been inaccurate in certain respects, such as the timing of new product manufacturing ramps. The guidance is based on certain assumptions such as those relating to global and local economic conditions, anticipated production and sales volumes (which generally are not linear throughout a given period), average sales prices, supplier and commodity costs, and planned cost reductions. If SMCI’s guidance is not accurate or varies from actual results due to its inability to meet the assumptions or the impact on its financial performance that could occur as a result of various risks and uncertainties, the market value of common stock issued by SMCI could decline significantly.
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YieldMax® SMCI Performance & Distribution Target 25™ ETF | Delisting Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Delisting Risk. Super Micro Computer, Inc. previously announced that it had received a notification letter from Nasdaq, dated September 17, 2024, indicating that the company was not in compliance with Nasdaq Listing Rule 5250(c)(1), which requires timely filing of periodic reports with the SEC. This notice was triggered by SMCI’s delay in filing its Annual Report on Form 10-K for the fiscal year ended June 30, 2024. On February 25, 2025, SMCI filed its Form 10-K, along with its Quarterly Reports on Form 10-Q for the first and second quarters of its fiscal year 2025, thereby regaining compliance with Nasdaq’s reporting requirements. While SMCI is currently in good standing with respect to Nasdaq listing standards, there can be no assurance that it will continue to meet its reporting obligations in a timely manner in the future. Any future failure to comply with Nasdaq’s listing requirements, including timely filings, could result in SMCI’s common stock being delisted from Nasdaq, which would prevent the Fund from continuing to operate.
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YieldMax® SMCI Performance & Distribution Target 25™ ETF | Operational and Execution Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Operational and Execution Risk. Adverse economic conditions may adversely affect SMCI’s business operations. Ongoing events in eastern Europe and the Taiwan Strait pose challenges and risks to SMCI, potentially impacting its business, financial condition, and operating results. Quarterly operating results have historically fluctuated and are likely to continue doing so in the future. Predicting revenue and margins for specific periods is challenging, and any revenue shortfall or margin decline may negatively impact SMCI’s operating results. As SMCI targets larger customers and sales opportunities, its customer base may become more concentrated, increasing costs, lowering margins, and exposing the company to inventory risks.
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YieldMax® SMCI Performance & Distribution Target 25™ ETF | Strategic and Industry Risks [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Strategic and Industry Risks. Failure to manage the expansion of international manufacturing capacity and business operations could harm SMCI’s business. Additionally, managing growth and expansion effectively is crucial for SMCI’s success. Expansion into markets outside the United States exposes SMCI to inherent risks associated with international business operations. Development of new products and enhancements to existing products is vital for SMCI’s growth; failure to predict or respond to emerging technological trends and changing customer needs may adversely affect its market share and operating results.
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YieldMax® SMCI Performance & Distribution Target 25™ ETF | Legal and Regulatory Risks [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Legal and Regulatory Risks. SMCI is subject to complex and evolving laws and regulations concerning privacy, data protection, and other matters due to the nature of its products and services. Compliance with environmental, health, and safety laws and regulations is essential for SMCI due to its operations involving regulated materials. Failure to maintain effective internal control over financial reporting may lead to investor loss of confidence and decrease the market price of SMCI’s common stock.
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YieldMax® SMCI Performance & Distribution Target 25™ ETF | Financial Risks [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Financial Risks. SMCI’s research and development expenditures are considerably higher than those of many competitors, impacting its financial performance. Future effective income tax rates could be affected by changes in operations and income among different geographic regions and changes in domestic and foreign income tax laws. Backlog does not significantly contribute to SMCI’s net sales in any quarter.
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YieldMax® SMCI Performance & Distribution Target 25™ ETF | General Risks [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | General Risks. Climate change reporting and product certification are increasingly sought by customers and regulators and there is the risk that SMCI’s products may not be perceived as supporting climate change mitigation efforts in the IT sector. Natural disaster events, including those related to climate change, may impact SMCI’s business and operations. Risks associated with the use of AI by SMCI’s workforce may arise. Expectations regarding environmental, social, and governance considerations expose SMCI to potential liabilities, reputational harm, and other unforeseen adverse effects on its business.
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YieldMax® SMCI Performance & Distribution Target 25™ ETF | Technology Hardware, Storage & Peripherals Industry Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Technology Hardware, Storage & Peripherals Industry Risk. Technology hardware, storage and peripherals companies can be significantly affected by competitive pressures, aggressive pricing, technological developments, changing domestic demand, the ability to attract and retain skilled employees and availability and price of components. The market for products produced by these companies is characterized by rapidly changing technology, rapid product obsolescence, cyclical market patterns, evolving industry standards and frequent new product introductions. The success of technology hardware companies depends in substantial part on the timely and successful introduction of new products. An unexpected change in one or more of the technologies affecting an issuer’s products or in the market for products based on a particular technology could have a material adverse effect on a participant’s operating results.
Many of these companies rely on a combination of patents, copyrights, trademarks and trade secret laws to establish and protect their proprietary rights in their products and technologies. There can be no assurance that the steps taken by the companies to protect their proprietary rights will be adequate to prevent misappropriation of their technology or that competitors will not independently develop technologies that are substantially equivalent or superior to such companies’ technology.
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YieldMax® SMCI Performance & Distribution Target 25™ ETF | Risk Lose Money [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | The Fund may not achieve its investment objective and there is a risk that you could lose all of your money invested in the Fund. | |||
YieldMax® SMCI Performance & Distribution Target 25™ ETF | Risk Nondiversified Status [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. This may increase the Fund’s volatility and cause the performance of a relatively smaller number of issuers to have a greater impact on the Fund’s performance.
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YieldMax® TSLA Performance & Distribution Target 25™ 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 (including ETFs), 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 or the Fund’s other portfolio holdings, 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 Security and the derivative, which may prevent the Fund from achieving its investment objective. 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:
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YieldMax® TSLA Performance & Distribution Target 25™ ETF | Options Contracts [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | 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 are substantially influenced by the value of the Underlying Security. The Fund may experience substantial downside from specific option positions and certain option positions held by the Fund may expire worthless. The options held by the Fund are exercisable at the strike price on their expiration date. As an option approaches its expiration date, its value typically increasingly move 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 the 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, to the extent the Fund maintains indirect exposure to an Underlying Security through the use of options contracts, as the options contracts it holds are exercised or expire it will enter into new options contracts, a practice referred to as “rolling.” If the expiring options contracts do not generate proceeds enough to cover the cost of entering into new options contracts, the Fund may experience losses.
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YieldMax® TSLA Performance & Distribution Target 25™ ETF | Counterparty Risk [Member] | ||||
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Risk [Text Block] | Counterparty Risk. The Fund is subject to counterparty risk by virtue of its investments in options contracts. Transactions in some types of derivatives, including options, are required to be centrally cleared (“cleared derivatives”). In a transaction involving cleared derivatives, the Fund’s counterparty is a clearing house rather than a bank or broker. Since the Fund is not a member of clearing houses and only members of a clearing house (“clearing members”) can participate directly in the clearing house, the Fund will hold cleared derivatives through accounts at clearing members. In cleared derivatives positions, the Fund will make payments (including margin payments) to and receive payments from a clearing house through their accounts at clearing members. Customer funds held at a clearing organization in connection with any options contracts are held in a commingled omnibus account and are not identified to the name of the clearing member’s individual customers. As a result, assets deposited by the Fund with any clearing member as margin for options may, in certain circumstances, be used to satisfy losses of other clients of the Fund’s clearing member. In addition, although clearing members guarantee performance of their clients’ obligations to the clearing house, there is a risk that the assets of the Fund might not be fully protected in the event of the clearing member’s bankruptcy, as the Fund would be limited to recovering only a pro rata share of all available funds segregated on behalf of the clearing member’s customers for the relevant account class. The Fund is also subject to the risk that a limited number of clearing members are willing to transact on the Fund’s behalf, which heightens the risks associated with a clearing member’s default. If a clearing member defaults the Fund could lose some or all of the benefits of a transaction entered into by the Fund with the clearing member. If the Fund cannot find a clearing member to transact with on the Fund’s behalf, the Fund may be unable to effectively implement its investment strategy.
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YieldMax® TSLA Performance & Distribution Target 25™ ETF | Distribution Risk [Member] | ||||
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Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective to provide current income, the Fund seeks to provide income distributions on a monthly or more frequent basis. There is no assurance that the Fund will make a distribution in any given month. If the Fund does make distributions, the amounts of such distributions will likely vary greatly from one distribution to the next.
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YieldMax® TSLA Performance & Distribution Target 25™ ETF | NAV Erosion Risk Due to Distributions [Member] | ||||
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YieldMax® TSLA Performance & Distribution Target 25™ ETF | Equity Market Risk [Member] | ||||
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Risk [Text Block] | Equity Market Risk. Common stocks are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from specific issuers. The equity securities held in the Fund’s portfolio may experience sudden, unpredictable drops in value or long periods of decline in value. This may occur because of factors that affect securities markets generally or factors affecting specific issuers, industries, or sectors in which the Fund invests. Common stocks, such as those held by the Fund, are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from issuers.
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YieldMax® TSLA Performance & Distribution Target 25™ ETF | Concentration Risk [Member] | ||||
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Risk [Text Block] | Concentration Risk. The Fund’s investments will be concentrated in same industry as that assigned to the Underlying Security. The value of the Fund’s shares may rise and fall more than the value of shares that invest in securities of companies in a broader range of industries.
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YieldMax® TSLA Performance & Distribution Target 25™ ETF | Economic and Market Risk [Member] | ||||
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Risk [Text Block] | Economic and Market Risk. Economies and financial markets throughout the world are becoming increasingly interconnected, which increases the likelihood that events or conditions in one country or region will adversely impact markets or issuers in other countries or regions. Securities in the Fund’s portfolio may underperform in comparison to securities in the general financial markets, a particular financial market, or other asset classes, due to a number of factors, including inflation (or expectations for inflation), deflation (or expectations for deflation), interest rates, global demand for particular products or resources, market instability, financial system instability, debt crises and downgrades, embargoes, tariffs, sanctions and other trade barriers, regulatory events, other governmental trade or market control programs and related geopolitical events. In addition, the value of the Fund’s investments may be negatively affected by the occurrence of global events such as war, terrorism, environmental disasters, natural disasters or events, country instability, and infectious disease epidemics or pandemics. The imposition by the U.S. of tariffs on goods imported from foreign countries and reciprocal tariffs levied on U.S. goods by those countries also may lead to volatility and instability in domestic and foreign markets.
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YieldMax® TSLA Performance & Distribution Target 25™ ETF | ETF Risks [Member] | ||||
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Risk [Text Block] | ETF Risks.
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YieldMax® TSLA Performance & Distribution Target 25™ ETF | Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk [Member] | ||||
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Risk [Text Block] | 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”). 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.
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YieldMax® TSLA Performance & Distribution Target 25™ ETF | Cash Redemption Risk [Member] | ||||
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Risk [Text Block] | Cash Redemption Risk. The Fund’s investment strategy may require it to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. For example, the Fund may not be able to redeem in-kind certain securities held by the Fund (e.g., derivative instruments). In such a case, the Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used. By paying out higher annual capital gain distributions, investors may be subjected to increased capital gains taxes. Additionally, there may be brokerage costs or taxable gains or losses that may be imposed on the Fund in connection with a cash redemption that may not have occurred if the Fund had made a redemption in-kind. These costs could decrease the value of the Fund to the extent they are not offset by a transaction fee payable by an AP.
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YieldMax® TSLA Performance & Distribution Target 25™ ETF | Costs of Buying or Selling Shares [Member] | ||||
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YieldMax® TSLA Performance & Distribution Target 25™ ETF | Shares May Trade at Prices Other Than NAV [Member] | ||||
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YieldMax® TSLA Performance & Distribution Target 25™ ETF | Trading [Member] | ||||
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Risk [Text Block] | Trading. Although Shares are listed on a national securities exchange, such as NYSE Arca, Inc. (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. 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 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. 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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YieldMax® TSLA Performance & Distribution Target 25™ 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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YieldMax® TSLA Performance & Distribution Target 25™ 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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YieldMax® TSLA Performance & Distribution Target 25™ ETF | Market Capitalization Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Market Capitalization Risk.
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YieldMax® TSLA Performance & Distribution Target 25™ 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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YieldMax® TSLA Performance & Distribution Target 25™ 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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YieldMax® TSLA Performance & Distribution Target 25™ 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 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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YieldMax® TSLA Performance & Distribution Target 25™ 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 options on shares of a single issuer does not exceed 25% of the Fund’s value at the close of any quarter. If the value of options on shares of a single issuer 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.
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YieldMax® TSLA Performance & Distribution Target 25™ 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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YieldMax® TSLA Performance & Distribution Target 25™ ETF | Large-Capitalization Investing [Member] | ||||
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YieldMax® TSLA Performance & Distribution Target 25™ ETF | TSLA Risk [Member] | ||||
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Risk [Text Block] | TSLA Risk. The Fund invests in options contracts that are based on the value of TSLA. This subjects the Fund to certain of the same risks as if it owned shares of TSLA, even though it does not. By virtue of the Fund’s investments in options contracts that are based on the value of TSLA, the Fund may also be subject to the following risks:
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YieldMax® TSLA Performance & Distribution Target 25™ ETF | Indirect Investment in TSLA Risk [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | Indirect Investment in TSLA Risk. Tesla, Inc. is not affiliated with the Trust, the Fund, the Adviser, or their respective affiliates and is not involved with this offering in any way and has no obligation to consider your Shares in taking any corporate actions that might affect the value of Shares. Investors in the Fund will not have voting rights and will not be able to influence management of Tesla, Inc. but will be exposed to the performance of TSLA (an Underlying Security). Investors in the Fund will not have rights to receive dividends or other distributions or any other rights with respect to the Underlying Security but will be subject to declines in the performance of the Underlying Security.
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YieldMax® TSLA Performance & Distribution Target 25™ ETF | TSLA Trading Risk [Member] | ||||
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Risk [Text Block] | TSLA Trading Risk. The trading price of TSLA may be highly volatile and could continue to be subject to wide fluctuations in response to various factors. The stock market in general, and the market for technology companies in particular, has experienced extreme price and volume fluctuations that have often been unrelated or disproportionate to the operating performance of those companies. In particular, a large proportion of TSLA may be traded by short sellers which may put pressure on the supply and demand for the common stock of Tesla, Inc., further influencing volatility in its market price. Public perception and other factors outside of the control of Tesla, Inc. may additionally impact TSLA’s stock price due to Tesla, Inc. garnering a disproportionate degree of public attention, regardless of actual operating performance. In addition, in the past, following periods of volatility in the overall market and the market price of a particular company’s securities, securities class action litigation has often been instituted against companies such as these. Moreover, stockholder litigation like this has been filed against Tesla, Inc. in the past. While Tesla, Inc. continues to defend such actions, any judgment against Tesla, Inc., or any future stockholder litigation could result in substantial costs and a diversion of the management of Tesla, Inc.’s attention and resources. If TSLA trading is halted, trading in Shares of the TSLA Fund may be impacted, either temporarily or indefinitely.
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YieldMax® TSLA Performance & Distribution Target 25™ ETF | Tesla, Inc. Performance Risk [Member] | ||||
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Risk [Text Block] | Tesla, Inc. Performance Risk. Tesla, Inc. may fail to meet its publicly announced guidelines or other expectations about its business, which could cause the price of TSLA to decline. Tesla, Inc. provides guidance regarding its expected financial and business performance, such as projections regarding sales and production, as well as anticipated future revenues, gross margins, profitability and cash flows. Correctly identifying key factors affecting business conditions and predicting future events is inherently an uncertain process, and the guidance Tesla, Inc. provides may not ultimately be accurate and has in the past been inaccurate in certain respects, such as the timing of new product manufacturing ramps. The guidance is based on certain assumptions such as those relating to global and local economic conditions, anticipated production and sales volumes (which generally are not linear throughout a given period), average sales prices, supplier and commodity costs, and planned cost reductions. If Tesla, Inc.’s guidance is not accurate or varies from actual results due to its inability to meet the assumptions or the impact on its financial performance that could occur as a result of various risks and uncertainties, the market value of common stock issued by Tesla, Inc. could decline significantly.
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YieldMax® TSLA Performance & Distribution Target 25™ ETF | Electric Vehicles Risk [Member] | ||||
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Risk [Text Block] | Electric Vehicles Risk. The future growth and success of Tesla, Inc. are dependent upon consumers’ demand for electric vehicles, and specifically, its vehicles in an automotive industry that is generally competitive, cyclical and volatile. If the market for electric vehicles in general and Tesla, Inc. vehicles in particular does not develop as Tesla, Inc. expects, develops more slowly than it expects, or if demand for its vehicles decreases in its markets or its vehicles compete with each other, the business, prospects, financial condition and operating results of Tesla, Inc. may be harmed. Tesla, Inc. is still at an earlier stage of development and have limited resources and production relative to established competitors that offer internal combustion engine vehicles. In addition, electric vehicles still comprise a small percentage of overall vehicle sales. As a result, the market for Tesla, Inc. vehicles could be negatively affected by numerous factors, such as: (i) perceptions about electric vehicle features, quality, safety, performance and cost; (ii) perceptions about the limited range over which electric vehicles may be driven on a single battery charge, and access to charging facilities; (iii) competition, including from other types of alternative fuel vehicles, plug-in hybrid electric vehicles and high fuel-economy internal combustion engine vehicles; (iv) volatility in the cost of oil and gasoline, such as wide fluctuations in crude oil prices; (v) government regulations and economic incentives; and (vi) concerns about the future viability of Tesla, Inc. Finally, the target demographics for Tesla, Inc. vehicles are highly competitive. Sales of vehicles in the automotive industry tend to be cyclical in many markets, which may expose Tesla, Inc. to further volatility.
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YieldMax® TSLA Performance & Distribution Target 25™ ETF | Automotive Companies Risk [Member] | ||||
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Risk [Text Block] | Automotive Companies Risk. The automotive industry can be highly cyclical, and companies in the industry may suffer periodic operating losses. Automotive companies can be significantly affected by labor relations, fluctuating component prices and supplier disruptions. Developments in automotive technologies (e.g., autonomous vehicle technologies) may require significant capital expenditures that may not generate profits for several years, if ever. Automotive companies may be significantly subject to government policies and regulations regarding imports and exports of automotive products. 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. While most of the major automotive manufacturers are large companies, certain others may be non-diversified in both product line and customer base and may be more vulnerable to certain events that may negatively impact the automotive industry.
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YieldMax® TSLA Performance & Distribution Target 25™ ETF | Elon Musk's Influence on TSLA Risk [Member] | ||||
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Risk [Text Block] | Elon Musk’s Influence on TSLA Risk. The Fund’s performance is closely tied to the stock price of TSLA, which may be significantly impacted by the actions, decisions, and public statements of its CEO, Elon Musk. His social media activity, interviews, and public remarks have historically caused sharp volatility in TSLA’s stock price and have, at times, resulted in regulatory scrutiny and legal proceedings. Additionally, Mr. Musk’s leadership decisions, including strategic shifts or changes in Tesla’s business model, could introduce uncertainty. His involvement in multiple high-profile ventures, such as SpaceX and X (formerly Twitter), may also raise concerns about his focus on Tesla. Furthermore, any potential reduction in his role or departure from Tesla could negatively affect investor sentiment. Given Mr. Musk’s influence, TSLA’s valuation may be subject to sudden and unpredictable changes, which could materially impact the Fund’s performance.
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YieldMax® TSLA Performance & Distribution Target 25™ ETF | Government Incentives Risk [Member] | ||||
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Risk [Text Block] | Government Incentives Risk. Government and economic incentives that support the development and adoption of electric vehicles in the U.S. and abroad, including certain tax exemptions, tax credits and rebates, may be reduced, eliminated, amended or exhausted from time to time. For example, previously available incentives favoring electric vehicles in certain areas have expired or were cancelled or temporarily unavailable, and in some cases were not eventually replaced or reinstituted, which may have negatively impacted sales. In addition, certain government and economic incentives may also be implemented or amended to provide benefits to manufacturers who assemble domestically, have local suppliers or have other characteristics that may not apply to TSLA. Such developments could negatively impact demand for TSLA’s vehicles, and TSLA and its customers may have to adjust to them, including through pricing modifications.
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YieldMax® TSLA Performance & Distribution Target 25™ ETF | Risk Lose Money [Member] | ||||
Prospectus [Line Items] | ||||
Risk [Text Block] | The Fund may not achieve its investment objective and there is a risk that you could lose all of your money invested in the Fund. | |||
YieldMax® TSLA Performance & Distribution Target 25™ ETF | Risk Nondiversified Status [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. This may increase the Fund’s volatility and cause the performance of a relatively smaller number of issuers to have a greater impact on the Fund’s performance.
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