Guggenheim Ultra Short Income ETF

INVESTMENT OBJECTIVE

The Guggenheim Ultra Short Income ETF (the “Fund”) seeks a high level of income consistent with the preservation of capital.

FEES AND EXPENSES OF THE FUND

This table describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table and example below.

ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)

Management Fees1	0.25 %
Other Expenses	0.00 %
Total Annual Fund Operating Expenses1	0.25 %

The Management Fees and Total Annual Fund Operating Expenses have been adjusted to reflect the management fee paid by the Fund. The Predecessor Fund (defined below) did not charge a management fee.

EXAMPLE

This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although the actual costs may be higher or lower, based on these assumptions your costs would be:

1 Year	3 Years	5 Years	10 Years
$26	$80	$141	$318

PORTFOLIO TURNOVER

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year ended September 30, 2025, the Predecessor Fund’s (defined below) portfolio turnover rate was 2% of the average value of its investment portfolio.

PRINCIPAL INVESTMENT STRATEGIES

The Fund intends to pursue its investment objective by investing primarily in a diversified portfolio of investment-grade debt securities and similar instruments while maintaining a low duration portfolio (i.e., a duration normally not exceeding one year). The Fund is not a money market fund and does not seek to maintain a stable net asset value (“NAV”) of $1.00 per share.

The Fund’s investments will include: debt securities; financial instruments that are expected to perform similarly to debt securities and investment vehicles that provide exposure to debt securities; and debt-like securities, including individual securities, investment vehicles and derivatives giving exposure to (i.e., with economic characteristics similar to) debt securities or other similar instruments or debt security markets. The Fund may seek to obtain exposure to the securities in which it primarily invests through a variety of investment vehicles, principally closed-end funds, exchange-traded funds (“ETFs”) and mutual funds, including those advised by the Investment Manager or its affiliates.

Debt securities and instruments in which the Fund may invest include corporate bonds and other corporate debt securities, securities issued by the U.S. government or its agencies and instrumentalities (including those not backed by the full faith and credit of the U.S. government), sovereign debt securities, Eurodollar bonds and obligations, agency and non-agency mortgage-backed and other asset-backed securities, participations in and assignments of bank and bridge loans, commercial paper (including asset-backed commercial paper), zero-coupon bonds, municipal

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bonds, payment-in-kind securities (such as payment-in-kind bonds), convertible securities, non-registered or restricted securities (including those issued in reliance on Rule 144A and Regulation S securities) and step-up securities (such as step-up bonds). These securities may pay fixed or variable rates of interest. The Fund may also invest in preferred stock and preferred debt securities. Although the Fund will principally invest in debt securities listed, traded or dealt in the U.S., it may also invest up to 30% of its total assets in securities listed, traded or dealt in other countries, including up to 20% of its total assets in securities listed, traded or dealt in emerging and frontier markets. The Fund may invest up to 30% of its total assets in non-U.S. dollar denominated securities.

Although the Fund will invest predominantly in investment grade debt instruments, up to 5% of the Fund’s total assets may be invested in securities that are rated at the time of purchase below investment grade (also known as “high yield securities” or “junk bonds”), or if unrated, determined to be of comparable quality by Guggenheim Partners Investment Management, LLC, also known as Guggenheim Investments (the “Investment Manager”). If nationally recognized statistical rating organizations assign different ratings to a security, the Fund will use the higher rating for purposes of determining the security’s credit quality.

The Fund may invest in repurchase agreements, which are fixed-income securities in the form of agreements backed by collateral. These agreements, which may be viewed as a type of secured lending by the Fund, typically involve the acquisition by the Fund of securities from the selling institution (such as a bank or a broker-dealer), coupled with the agreement that the selling institution will repurchase the underlying securities at a specified price and at a fixed time in the future (or on demand). The Fund may accept a wide variety of underlying securities as collateral for the repurchase agreements entered into by the Fund. Such collateral may include U.S. government securities, corporate obligations, equity securities, municipal debt securities, asset- and mortgage-backed securities, convertible securities and other fixed income securities or a combination thereof. Any such securities serving as collateral are marked-to-market daily in order to maintain full collateralization (typically purchase price plus accrued interest).

With respect to mortgage-backed securities (“MBS”) and other asset-backed securities, the Fund may invest in MBS issued or guaranteed by federal agencies and/or U.S. government sponsored instrumentalities, such as the Government National Mortgage Administration, the Federal Housing Administration, the Federal National Mortgage Association and the Federal Home Loan Mortgage Corporation. In addition to securities issued or guaranteed by such agencies or instrumentalities, the Fund may invest in MBS or other asset-backed securities issued or guaranteed by private issuers. The MBS in which the Fund may invest also include residential mortgage-backed securities, collateralized mortgage obligations and commercial mortgage-backed securities. The other asset-backed securities in which the Fund may invest include collateralized debt obligations (“CDOs”). CDOs include collateralized bond obligations (“CBOs”), collateralized loan obligations (“CLOs”), commercial real estate CDOs and other similarly structured securities. A CBO is a trust which is backed by a diversified pool of below investment grade fixed-income securities. A CLO is a trust typically collateralized by a pool of loans, which may include domestic and foreign senior secured loans, senior unsecured loans and subordinate corporate loans, including loans that may be rated below investment grade or if unrated, determined by the Investment Manager to be of comparable quality.

With respect to bank loans, the Fund may purchase participations in, or assignments of, floating rate bank loans that may be secured by real estate or other assets or lend directly, joining a lending syndicate. These participations or assignments may be acquired from banks or brokers that have made the loan or members of the lending syndicate.

To seek to enhance the Fund’s debt exposure, hedge against investment risk or increase the Fund’s yield, the Fund may engage in derivatives transactions, including: foreign exchange forward contracts; futures on securities, indices, currencies and other investments; Secured Overnight Financing Rate (“SOFR”) futures; options; interest rate swaps; cross-currency swaps; total return swaps; and credit default swaps. The Fund may engage in derivative transactions for speculative purposes; to seek to enhance total return; to seek to hedge against fluctuations in securities prices, interest rates or currency rates; to seek to change the effective duration of its portfolio; to seek to manage certain investment risks; as a substitute for the purchase or sale of securities or currencies; and/or to obtain or replicate market exposure. These transactions may create economic leverage in the Fund.

The Fund may seek to obtain market exposure to the instruments in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs, “To Be Announced” (“TBA”) transactions and/or dollar rolls). The Fund may use leverage to the extent permitted by applicable law by entering into reverse repurchase agreements and borrowing transactions for investment purposes.

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The Fund may hold instruments of any duration or maturity but expects, under normal circumstances, to maintain a dollar-weighted average duration of generally less than one year. Duration is a measure of the price volatility of a debt instrument as a result of changes in market rates of interest, based on the weighted average timing of the instrument’s expected principal and interest payments. For example, the NAV per share of a bond fund with an average duration of one year would be expected to fall approximately 1% if interest rates rose by one percentage point. Duration differs from maturity in that it considers an instrument’s yield, coupon payments, principal payments and call features in addition to the amount of time until the instrument matures. As the value of an instrument changes over time, so will its duration.

The Fund follows an actively managed approach that seeks to find a balance between yield and capital preservation. The Investment Manager selects securities and other investments for purchase and sale based on intensive credit research involving extensive due diligence on each investment (including the investment’s structure), issuer, region and sector, and also considers macroeconomic outlook and geopolitical issues.

The Investment Manager may determine to sell an instrument for several reasons, including but not limited to the following: (1) to adjust the portfolio’s average maturity or duration, or to shift assets into or out of higher-yielding securities; (2) if a security’s credit rating has been changed, the Investment Manager's credit outlook has changed, or for other similar reasons; or (3) due to relative value. The Fund does not intend to principally invest in defaulted securities, but if a security defaults subsequent to purchase by the Fund, the Investment Manager will determine in its discretion whether to hold or dispose of such security. Under adverse or unstable market conditions or abnormal circumstances (for example, in the event of credit events, where it is deemed opportune to preserve gains or to preserve the relative value of investments), the Fund can make temporary investments that are inconsistent with the Fund’s principal investment strategies and may be unable to pursue or achieve its investment objective.

The Fund is a “non-diversified” fund, which means it may invest a greater proportion of its assets in the securities of one or more issuers and invests overall in a smaller number of issuers than a diversified fund.

PRINCIPAL RISKS

The value of an investment in the Fund will fluctuate and is subject to investment risks, which means investors could lose money, including all or part of their investment in the Fund. An investment in the Fund is not a bank deposit and is not insured or guaranteed by the FDIC or any governmental agency. There is no assurance that the Fund will achieve its investment objective. An investment in the Fund does not constitute a complete investment program. The Fund is subject to certain risks and the principal risks of investing in the Fund are summarized below in alphabetical order, and not in the order of importance or potential exposure. The relative significance of each principal risk summarized below may change over time and you should review each risk carefully because any one or more of these risks may result in losses to the Fund. Please see “Descriptions of Principal Risks” in the Fund’s prospectus for a more detailed description of the risks of investing in the Fund.

Asset-Backed Securities Risk—Investors in asset-backed securities, including residential mortgage-backed securities, commercial mortgage-backed securities and other structured finance investments (such as collateralized mortgage obligations), generally receive payments that are part interest and part return of principal. These payments may vary based on the rate at which the underlying borrowers pay off their loans. As a result, asset-backed securities are particularly subject to credit risk and borrower defaults on the obligations underlying the asset-backed security will result in losses. In addition, asset-backed securities are typically particularly sensitive to changes in interest rates, which can cause the prices of asset-backed securities to be increasingly volatile and adversely affect the Fund’s holdings of asset-backed securities. Some asset-backed securities, including mortgage-backed securities, may have structures that make their performance based on changes in interest rates and other factors difficult to predict, causing their prices to be volatile. Asset-backed securities are also particularly subject to market, liquidity, valuation, prepayment and extension risks, and are also subject to risk of impairment of the value of the underlying asset. Additional risks relating to investments in asset-backed securities may arise principally because of the type of asset-backed securities in which the Fund invests, with such risks primarily associated with the particular assets collateralizing the asset-backed securities, the structure of such asset-backed securities or the tranche or priority of the asset-backed security held by the Fund.

Authorized Participant Risk—The Fund may have a limited number of financial institutions that may act as Authorized Participants (“APs”). Only APs who have entered into agreements with the Fund’s distributor may engage in creation or redemption transactions directly with the Fund. These APs have no obligation to submit creation or redemption orders and, as a result, there is no assurance that an active trading market for the Fund’s shares will be

3 | SUMMARY PROSPECTUS

established or maintained. This risk may be heightened to the extent that the securities underlying the Fund are traded outside of a collateralized settlement system. In that case, APs may be required to post collateral on certain trades on an agency basis (i.e., on behalf of other market participants), which only a limited number of APs may be willing or able to do. In addition, to the extent that APs exit the business or are unable to proceed with creation and/or redemption orders with respect to the Fund and no other AP is able to step forward to create or redeem Creation Units, this may result in a significantly diminished trading market for the Fund’s shares, and shares may be more likely to trade at a premium or discount to the Fund’s NAV and to face trading halts and/or delisting.

Cash Transaction Risk—To the extent the Fund effects Creation Unit transactions for cash, rather than in-kind securities, cash purchases may cause the Fund to incur portfolio transaction fees or charges or delays in investing the cash that it would otherwise not incur if a purchase was made on an in-kind basis. Because the Fund may be required to sell portfolio securities to obtain the cash needed to distribute redemption proceeds and thereby may recognize a capital gain on such sales, Creation Unit redemption on a cash basis may be less tax-efficient for the Fund compared to an in-kind redemption. In addition, Creation Unit redemptions for cash may cause the Fund to incur portfolio transaction fees or charges it would not otherwise incur with an in-kind redemption, to the extent such fees or charges are not offset by the redemption transaction fee paid by APs. In addition, the Fund’s use of cash transactions may result in wider bid-ask spreads in Fund shares trading in the secondary market as compared to ETFs that transact exclusively on an in-kind basis.

CLO Manager Risk—CLOs are managed by investment advisers independent of the Investment Manager. CLO managers are responsible for selecting, managing and replacing the underlying bank loans within a CLO. CLO managers may have limited operating histories, may be subject to conflicts of interests, including managing the assets of other clients or other investment vehicles, or receiving fees that incentivize maximizing the yield, and indirectly the risk, of a CLO. Adverse developments with respect to a CLO manager, such as personnel and resource constraints, regulatory issues or other developments that may impact the ability and/or performance of the CLO manager, may adversely impact the performance of the CLO securities in which the Fund invests.

Collateralized Loan Obligations and Collateralized Debt Obligations Risk—Collateralized loan obligations (“CLOs”) bear many of the same risks as other forms of asset-backed securities, including interest rate risk, credit risk and default risk. As they are backed primarily by commercial loans, CLOs also bear many of the same risks as investing in loans directly. However, in addition to the risks associated with investing in commercial loans, the complex structure and highly leveraged nature of a CLO poses additional risks, including, but not limited to: (i) the possibility that distributions from collateral securities will not be adequate to make interest or other payments; (ii) the quality of the collateral may decline in value or default; (iii) the Fund may invest in CLOs that are subordinate to other classes; and (iv) the complex structure of the CLO may not be fully understood at the time of investment and may produce disputes with the issuer or unexpected investment results. CLOs incur indebtedness by issuing classes or “tranches” that vary in risk and yield. CLOs may experience substantial losses attributable to loan defaults or trading losses. Such losses on the underlying assets are borne first by the holders of subordinate tranches, which may take the form of an equity interest. The Fund’s investments in CLOs may decrease in market value or income when the CLO’s assets experience loan defaults or credit impairment, losses that exceed the most subordinate tranches, or market anticipation of loan defaults and investor aversion to CLO securities as a class.

Collateralized debt obligations (“CDOs”) are structured similarly to CLOs and bear many of the same risks as CLOs, including interest rate risk, credit risk and default risk. CDOs are subject to additional risks because they are backed by pools of assets other than commercial loans, including securities (such as other asset-backed securities), synthetic instruments or bonds, and may be highly leveraged. Like CLOs, losses incurred by a CDO are borne first by holders of the most subordinate tranches. Accordingly, the risks of CDOs depend largely on the type of underlying collateral and the tranche of CDOs in which the Fund invests. Moreover, CDOs that obtain their exposure through synthetic investments are exposed to risks associated with derivative instruments.

The terms of many structured finance investments, including CLOs and CDOs, are tied to SOFR or other reference rates. These relatively new and developing rates may not match the reference rate applicable to the underlying assets related to these investments. These may adversely affect the Fund and its investments in CLOs and CDOs, including their value, volatility and liquidity. CLOs, CDOs and their underlying loan obligations are typically not registered for sale to the public and therefore are subject to certain restrictions on transfer and sale, potentially subjecting them to increased liquidity risk as compared to other types of investments. As a result, the Fund may be unable to acquire or dispose of the securities at a price and time that are advantageous to the Fund.

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Collateralized Mortgage Obligation Risk—CMOs are a type of mortgage-backed security. CMOs are created by dividing the principal and interest payments collected on a pool of mortgages into several revenue streams (tranches) with different priority rights to portions of the underlying mortgage payments. Certain CMO tranches may represent a right to receive interest only (“IOs”), principal only (“POs”) or an amount that remains after floating-rate tranches are paid (an inverse floater). These securities are frequently referred to as “mortgage derivatives” and may be extremely sensitive to changes in interest rates. Interest rates on inverse floaters, for example, vary inversely with a short-term floating rate (which may be reset periodically). Interest rates on inverse floaters will decrease when short-term rates increase, and will increase when short-term rates decrease. These securities have the effect of providing a degree of investment leverage. In response to changes in market interest rates or other market conditions, the value of an inverse floater may increase or decrease at a multiple of the increase or decrease in the value of the underlying securities. If the Fund invests in CMO tranches (including CMO tranches issued by government agencies) and interest rates move in a manner not anticipated by the Investment Manager, it is possible that the Fund could lose all or substantially all of its investment.

Commercial Mortgage-Backed Securities Risk—Investments in commercial mortgage-backed securities (“CMBS”) are backed by commercial mortgage loans that may be secured, for example, by office properties, retail properties, hotels, mixed use properties or multi-family apartment buildings and are particularly subject to the credit risk of the borrower and the tenants of the properties securing the commercial mortgage loans. CMBS are subject to the risks of asset-backed securities generally, in particular credit risk and interest rate risk, and the commercial real estate markets. Economic downturns, tightening lending standards and increased interest and lending rates, developments adverse to the commercial real estate markets, and other developments that limit or reduce the activities of and demand for commercial retail and office spaces adversely impact the value of, and income generated by, such securities.

Commercial Paper Risk—The value of the Fund’s investment in commercial paper, which is an unsecured promissory note that generally has a maturity date between one and 270 days and is issued by a U.S. or foreign entity, is susceptible to changes in the issuer’s financial condition or credit quality. Investments in commercial paper are usually discounted from their value at maturity. Commercial paper can be fixed-rate or variable rate and can be adversely affected by changes in interest rates. The Fund may invest in commercial paper collateralized by other financial assets, such as asset-backed commercial paper. These securities are exposed not only to the risks relating to commercial paper, but also the risks relating to the collateral.

Convertible Securities Risk—Convertible securities may be subordinate to other securities. The total return for a convertible security depends, in part, upon the performance of the underlying security into which it can be converted. The value of convertible securities tends to decline as interest rates increase. Convertible securities generally offer lower interest or dividend yields than non-convertible securities of similar quality. Certain types of convertible securities may decline in value or lose their value entirely in the event that the issuer’s financial conditions become significantly impaired.

Counterparty Credit Risk—The Fund makes investments in financial instruments and over-the-counter (“OTC”)-traded derivatives involving counterparties to gain exposure to a particular group of securities, index, asset class or other reference asset without actually purchasing those securities or investments, to hedge a position, or for other investment purposes. Through these investments and related arrangements (e.g., prime brokerage or securities lending arrangements or derivatives transactions), the Fund is exposed to credit risks that the counterparty may be unwilling or unable to make timely payments or otherwise to meet its contractual obligations. If the counterparty becomes insolvent or defaults on (or otherwise becomes unable or unwilling to perform) its payment or other obligations to the Fund, the Fund may not receive the full amount that it is entitled to receive or may experience delays in recovering the collateral or other assets held by, or on behalf of, the counterparty. If this occurs, the value of your shares in the Fund will decrease. Counterparty credit risk also includes the related risk of having concentrated exposure to such a counterparty.

Credit Risk—The Fund could lose money if the issuer or guarantor of a fixed-income or other debt instrument or a counterparty to a derivatives transaction or other transaction is unable or unwilling, or perceived by market participants, rating agencies, pricing services or otherwise to be unable or unwilling, to pay interest or repay principal on time, defaults or otherwise fails to meet its obligations. Actual or perceived changes in economic, social, public health, financial or political conditions in general or that affect a particular type of instrument, issuer, guarantor or counterparty can reduce the ability of the party to meet its obligations, which can affect the credit quality, liquidity and/or value of an instrument. The value of an instrument also may decline for reasons that relate directly to the issuer, guarantor or counterparty, such as management performance, financial leverage and reduced demand for

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goods and services or an actual or perceived change in financial condition or reputation. The issuer, guarantor or counterparty could also suffer a rapid decline in credit rating, which would adversely affect the value, price volatility and liquidity of the instrument. Credit ratings may not be an accurate assessment of liquidity or credit risk.

Currency Risk—Indirect and direct exposure to foreign currencies subjects the Fund to the risk that those currencies will decline in value relative to the U.S. Dollar, which would cause a decline in the value of the holdings of the Fund. Currency rates in foreign countries may fluctuate significantly over short periods of time for a number of reasons, including changes in interest rates and the imposition of currency controls or other political, economic and tax developments in the U.S. or abroad. When the Fund seeks exposure to foreign currencies through foreign currency contracts and related transactions, the Fund becomes particularly susceptible to foreign currency value fluctuations, which may be sudden and significant, and investment decisions tied to currency markets. In addition, these investments are subject to the risks associated with derivatives and hedging and the impact on the Fund of fluctuations in the value of currencies may be magnified.

Derivatives Risk—Derivatives and other similar instruments (collectively referred to in this paragraph as “derivatives”) pose risks in addition to and greater than those associated with investing directly in securities, currencies or other investments, including risks relating to leverage, market conditions and market risk, imperfect correlations with underlying investments or the Fund’s other portfolio holdings, high price volatility, lack of availability, counterparty credit, illiquidity, valuation, operational and legal restrictions and risk. Their use 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 leverage, which may cause the Fund to be more volatile and riskier than if it had not been leveraged. Changes in the value of a derivative may also create sudden margin delivery or settlement payment obligations for the Fund, which can materially affect the performance of the Fund and its liquidity and other risk profiles. If the Investment Manager is incorrect about its expectations of market conditions, the use of derivatives could also result in a loss, which in some cases may be unlimited. In addition, the Fund's use of derivatives may cause the Fund to realize higher amounts of short term capital gains (generally taxed at ordinary income tax rates) than if the Fund had not used such instruments. Some of the derivatives in which the Fund invests may be traded (and privately negotiated) in the OTC market. OTC derivatives are subject to heightened counterparty credit, legal, liquidity and valuation risks. Certain risks also are specific to the derivatives in which the Fund invests.

Forward Foreign Currency Exchange Contracts Risk—A forward foreign currency exchange contract is an OTC obligation to purchase or sell a specific currency at a future date at a price set at the time of the contract. Foreign currency transactions can be affected unpredictably by intervention (or the failure to intervene) by U.S. or foreign governments or central banks, or by currency controls or political developments. Such events may prevent or restrict the Fund’s ability to enter into foreign currency transactions, force the Fund to exit a foreign currency transaction at a disadvantageous time or price or result in penalties for the Fund, any of which may result in a loss to the Fund. A contract to sell a foreign currency would limit any potential gain that might be realized if the value of the currency increases. Suitable hedging transactions may not be available in all circumstances. Engaging in forward foreign currency exchange contracts will subject the Fund to counterparty credit risk and any failure to perform by a counterparty could result in a loss to the Fund.

Futures Contracts Risk—Futures contracts are exchange-traded contracts that call for the future delivery of an asset at a certain price and date, or cash settlement of the terms of the contract. Risks of futures contracts may be caused by an imperfect correlation between movements in the price of the instruments and the price of the underlying assets. In addition, there is a risk that the Fund may not be able to enter into a closing transaction because of an illiquid market. Exchanges can limit the number of positions that can be held or controlled by the Fund or the Investment Manager, thus limiting the ability to implement the Fund’s strategies. Futures markets are highly volatile and the use of futures may increase the volatility of the Fund’s NAV. Futures are also subject to leverage and liquidity risks.

Options Risk—Options and options on futures contracts give the holder of the option the right, but not the obligation, to buy (or to sell) a position in a security or in a contract to the writer of the option, at a certain price. Options are subject to correlation risk because there may be an imperfect correlation between the options and the markets for underlying instruments that could cause a given transaction to fail to achieve its objectives. The successful use of options depends on the Investment Manager’s ability to predict correctly future price fluctuations and the degree of correlation between the markets for options and the underlying instruments. Exchanges can limit the number of positions that can be held or controlled by the Fund or the Investment Manager, thus limiting the ability to implement the Fund’s strategies. Options are also particularly subject to leverage risk and can be subject to liquidity risk.

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Swap Agreements Risk—Swap agreements are contracts among the Fund and a counterparty to exchange the return of the pre-determined underlying investment (such as the rate of return of the underlying index). Swap agreements may be negotiated bilaterally and traded OTC between two parties or, for certain standardized swaps, must be traded on a designated contract market or swap execution facility. Risks associated with the use of swap agreements are different from those associated with ordinary portfolio securities transactions, due in part to the fact they could be considered illiquid and many swaps trade on the OTC market. Swaps are particularly subject to counterparty credit, correlation, valuation, liquidity and leveraging risks. While exchange trading and central clearing are intended to reduce counterparty credit risk and increase liquidity, they do not make swap transactions risk-free. Additionally, applicable regulators have adopted rules imposing certain margin requirements, including minimums, on OTC swaps, which may result in the Fund and its counterparties posting higher margin amounts for OTC swaps, which could increase the cost of swap transactions to the Fund and impose added operational complexity.

Dollar Roll Transaction Risk—The Fund may enter into dollar roll transactions, in which the Fund sells a mortgage-backed or other security for settlement on one date and buys back a substantially similar security for settlement at a later date. Dollar rolls involve a risk of loss if the market value of the securities that the Fund is committed to buy declines below the price of the securities the Fund has sold.

Emerging and Frontier Markets Risk—Investments in or exposure to emerging markets are generally subject to a greater level of the risks associated with investing in or being exposed to developed foreign markets, as emerging markets are considered to be less developed. Furthermore, investments in or exposure to emerging markets are generally subject to risks in addition to the risks associated with investing in foreign securities, including the risks associated with trading in smaller markets, lower volumes of trading, limited information about issuers and securities, being subject to lower levels of government regulation and less extensive and transparent accounting, auditing, recordkeeping, financial reporting and other requirements, and being subject to potential expropriation or nationalization of private properties and other adverse political, economic and social events. The Fund's exposure to the risks associated with investing in emerging markets are magnified if the Fund invests in frontier markets.

Exchange Listing and Trading Risk—Although Fund shares are listed for trading on the NYSE Arca, Inc. (the “Exchange”), there can be no assurance that an active trading market for such shares will develop or be maintained. The lack of an active market for Fund shares, as well as periods of high volatility, disruptions in the creation/redemption process, or factors affecting the liquidity of the underlying securities held by the Fund, may result in the Fund’s shares trading at a premium or discount to its NAV.

Trading in Fund shares may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Fund shares inadvisable. In addition, trading is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange’s “circuit breaker” rules. There can be no assurance that the requirements of the Exchange necessary to maintain the Fund’s listing will continue to be met or will remain unchanged.

Extension Risk—Certain debt instruments, including mortgage- and other asset-backed securities, are subject to the risk that payments on principal may occur at a slower rate or later than expected. In this event, the expected maturity could lengthen and the Fund’s investment may sharply decrease in value and the Fund’s income from the investment may quickly decline. These types of instruments are particularly subject to extension risk, and offer less potential for gains, during periods of rising interest rates. In addition, the Fund may be delayed in its ability to reinvest income or proceeds from these instruments in potentially higher yielding investments, which would adversely affect the Fund.

Floating Rate Obligations Risk—Securities with floating or variable interest rates can be less sensitive to interest rate changes than securities with fixed interest rates, but may decline in value if their interest rates do not rise as much, or as quickly, as interest rates in general. Conversely, floating rate securities will not generally increase in value if interest rates decline. A decline in interest rates may result in a reduction of income received from floating rate securities held by the Fund and may adversely affect the value of the Fund’s shares. Generally, floating rate securities carry lower yields than fixed notes of the same maturity. The interest rate for a floating rate note resets or adjusts periodically by reference to a benchmark interest rate. The impact of interest rate changes on floating rate investments is typically mitigated by the periodic interest rate reset of the investments. Securities with longer durations tend to be more sensitive to interest rate changes, usually making them more volatile than securities with shorter durations. Benchmark interest rates, such as SOFR, may not accurately track market interest rates.

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Fluctuation of NAV and Market Price Risk—The NAV of the Fund’s shares will generally fluctuate with changes in the market value of the Fund’s securities holdings. The market prices of the Fund’s shares will generally fluctuate in accordance with changes in the Fund’s NAV and supply and demand of shares on the Exchange. Volatile market conditions, an absence of trading in shares of the Fund, or a high volume of trading in the Fund, may result in trading prices in the Fund’s shares that differ significantly from the Fund’s NAV. Additionally, during a “flash crash,” the market prices of the Fund’s shares may decline suddenly and significantly, resulting in Fund shares trading at a substantial discount to NAV. Such a decline may not reflect the performance of the portfolio securities held by the Fund. Flash crashes may cause APs and other market makers to limit or cease trading in the Fund’s shares for temporary or longer periods, which may result in an increase in the variance between market prices of the Fund’s shares and the Fund’s NAV. Shareholders could suffer significant losses to the extent that they sell shares at these temporarily low market prices.

It cannot be predicted whether Fund shares will trade below, at or above the Fund’s NAV. Further, the securities held by the Fund may be traded in markets that close at a different time than the Exchange. Liquidity in those securities may be reduced after the applicable closing times. Accordingly, during the time when the Exchange is open but after the applicable market closing or fixing settlement times, bid-ask spreads and the resulting premium or discount to the Fund shares’ NAV is likely to widen. Similarly, the Exchange may be closed at times or days when markets for securities held by the Fund are open, which may increase bid-ask spreads and the resulting premium or discount to the Fund shares’ NAV when the Exchange re-opens. The Fund’s bid-ask spread and the resulting premium or discount to the Fund’s NAV may also be impacted by the liquidity of the underlying securities held by the Fund, particularly in instances of significant volatility of the underlying securities.

Foreign Securities and Currency Risk—Foreign securities carry unique, additional and heightened risks when compared to U.S. securities, including, but not limited to: currency fluctuations; adverse political (including geopolitical), social and economic developments; trade restrictions (including tariffs) or other government restrictions by the U.S. or other governments; unreliable, untimely or less publicly available information; less government supervision; reporting, accounting, and auditing standards that are not comparable to those in the U.S.; less liquidity and more volatility; limited legal recourse; and higher transactional costs. Foreign issuers may not be subject to uniform accounting, auditing and financial reporting standards and there may be less reliable and publicly available financial and other information about such issuers, as compared to U.S. issuers. The Fund may have greater difficulty exercising rights, securing dividends and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing legal remedies, and obtaining judgments with respect to foreign investments in foreign courts than with respect to domestic issuers in U.S. courts.

Hedging Risk—The Fund may, but is not required to, engage in various investments or transactions that are designed to hedge a position that the Fund holds. There can be no assurance that the Fund’s hedging investments or transactions will be effective. Hedging investments or transactions involve costs and may reduce gains or result in losses, which may adversely affect the Fund.

High Yield and Unrated Securities Risk—High yield, below investment grade and unrated high risk debt securities (which also may be known as “junk bonds”) may be regarded as predominantly speculative by certain rating agencies with respect to the issuer’s continuing ability to meet principal and interest payments. These securities generally present additional risks compared to investment grade bonds and are typically less liquid, and therefore more difficult to value accurately and sell at an advantageous price or time, and present more credit and default risk, including risk of loss (which may be substantial or total loss) of income and principal, than investment grade bonds. The price of high yield securities tends to be subject to greater volatility due to issuer-specific factors, such as operating results and outlook, and to real or perceived adverse economic and competitive industry conditions. High yield securities may be issued by companies that are restructuring, are smaller and less credit worthy or are more highly leveraged or indebted than other companies or are financially distressed, and therefore they typically have more difficulty making scheduled payments of principal and interest than issuers of higher rated investments. Under unusual or adverse economic, market or political conditions, high yield securities may be particularly susceptible to default risk and increased default rates. In the event of default, the Fund may incur additional expenses to seek recovery or to negotiate new terms with a defaulting issuer.

Interest Rate Risk—Fixed-income and other debt instruments are subject to the possibility that interest rates could change (or are expected to change). Changes in interest rates (or the expectation of such changes) can be difficult to forecast and may adversely affect the Fund’s investments in these instruments, such as the value or liquidity of, and income generated by, the investments. Interest rates may change as a result of a variety of factors, and the change may be sudden and significant, with unpredictable impacts on the financial markets and the Fund’s

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investments. Fixed-income and other debt instruments with longer durations are more sensitive to changes in interest rates and, thus, subject to more volatility than similar instruments with shorter durations. Generally, when interest rates increase, the values of previously issued fixed-income and other debt instruments decline, sometimes suddenly and significantly. When interest rates decrease, the values of fixed-income and other debt instruments generally rise. During periods of rising interest rates, because changes in interest rates on adjustable rate securities may lag behind changes in market rates, the value of such securities may decline until their interest rates reset to market rates. During periods of declining interest rates, because the interest rates on adjustable rate securities generally reset downward, their market value is unlikely to rise to the same extent as the value of comparable fixed rate securities. The Fund’s yield, returns and performance may be adversely affected by changing interest rates and the Fund's net asset value per share may be more volatile during changing interest rate environments. Changes in fiscal, economic, monetary and other policies or measures have in the past, and may in the future, cause or exacerbate the risks associated with changing interest rates.

Investment in Investment Vehicles Risk—The Fund may seek to obtain certain exposure through investments in other investment vehicles. Investing in other investment vehicles, including ETFs, closed-end funds, short-term funds advised by the Investment Manager and/or its affiliates and mutual funds, subjects the Fund to those risks affecting the investment vehicle, including the possibility that the value of the underlying securities held by the investment vehicle could decrease or the portfolio becomes illiquid. Moreover, the Fund and its shareholders will incur its pro rata share of the underlying vehicles’ expenses, which will reduce the Fund’s performance. In addition, investments in an ETF or a listed closed-end fund are subject to, among other risks, the risk that the shares may trade at a discount or premium relative to the net asset value of the shares and the listing exchange may halt trading of the shares.

Investment in Loans Risk—The Fund may invest in loans directly or indirectly through assignments or participations. Investments in loans, including loan syndicates and other direct lending opportunities, involve special types of risks, including credit risk, interest rate risk, counterparty risk, prepayment risk, risk of subordination to other creditors, extension risk and risk of insufficient or lack of protection under the federal securities law. Loans may offer a fixed or floating interest rate. Loans are often below investment grade and may be unrated. The Fund’s investments in loans can also be difficult to value accurately because of, among other factors, limited public information regarding the loan or the borrowers and may be more susceptible to liquidity risk than fixed-income instruments of similar credit quality and/or maturity. The Fund is also subject to the risk that the value of any collateral for the loan may be insufficient or unavailable to cover the borrower’s obligations should the borrower fail to make payments, become insolvent, or otherwise default. This risk is increased if the Fund’s loans are secured by a single asset. The Fund may also invest in loans that are not secured by collateral which typically present greater risks than collateralized loans. Transactions in loans are often subject to long settlement periods and often require consent from borrowers and/or an agent acting for the lenders, thus potentially limiting the ability of the Fund to invest sale proceeds in other investments and to use proceeds to meet redemption orders. The Fund thus is subject to the risk of selling other investments at disadvantageous times or prices or taking other actions necessary to raise cash to meet redemption orders. Participations in loans may subject the Fund to the credit risk of both the borrower and the seller of the participation and may make enforcement of loan covenants, if any, more difficult for the Fund as legal action may have to go through the seller of the participation (or an agent acting on its behalf). Covenants contained in loan documentation are intended to protect lenders and investors by imposing certain restrictions and other limitations on a borrower’s and the credit group’s operations or assets and by providing certain information and consent rights to lenders. In addition to operational covenants, loans and other debt obligations often contain financial covenants, which require a borrower and the related credit group to satisfy certain financial tests at periodic intervals or to maintain compliance with certain financial metrics. The Fund may invest in or have exposure to loans and other similar debt obligations that are sometimes referred to as “covenant-lite” loans or obligations, which generally are loans or other similar debt obligations that lack financial maintenance covenants or possess fewer or contingent financial maintenance covenants and other financial protections for lenders and investors. These “covenant-lite” loans or similar debt obligations are particularly subject to the risks associated with investments in loans as described above.

Large Shareholder Risk—Certain large shareholders, including other funds or accounts advised by the Investment Manager or its affiliates, may from time to time own a substantial amount of the Fund’s shares. In addition, a third-party investor, the Investment Manager or an affiliate of the Investment Manager, an AP, a lead market maker, or another entity may invest in the Fund and hold its investment for a limited period of time solely to facilitate commencement of the Fund or to facilitate the Fund’s achieving a specified size or scale. There can be no assurance that any large shareholder would not redeem its investment, that the size of the Fund would be maintained at such levels or that the Fund would continue to meet applicable listing requirements. Redemptions by large shareholders

9 | SUMMARY PROSPECTUS

could have a significant negative impact on the Fund. In addition, transactions by large shareholders may account for a large percentage of the trading volume on the Exchange and may, therefore, have a material upward or downward effect on the market price of the shares.

Leverage Risk—The Fund’s use of leverage, through borrowings or instruments such as derivatives and reverse repurchase agreements, may cause the Fund to be more volatile and riskier and magnify the Fund's losses to an extent greater than if it had not been leveraged. The use of leverage may also increase the Fund’s sensitivity to various risks and interest rate environments.

Liquidity and Valuation Risk—It may be difficult for the Fund to purchase and sell particular investments to meet redemption orders or otherwise within a reasonable time at a fair price, or the price at which it has been valued by the Investment Manager for purposes of the Fund’s net asset value, causing the Fund to be less liquid and unable to realize what the Investment Manager believes should be the price of the investment. Valuation of portfolio investments may be difficult, such as during periods of market turmoil or reduced liquidity, and for investments that may, for example, trade infrequently or irregularly. In these and other circumstances, an investment may be valued using fair value methodologies, which are inherently subjective, reflect good faith judgments based on available information and may not accurately estimate the price at which the Fund could sell the investment at that time. Liquidity and valuation risks are heightened in a changing interest rate or volatile environment, particularly for fixed-income and other debt instruments.

Management Risk—The Fund is actively managed, which means that investment decisions are made based on investment views. There is no guarantee that the investment views will produce the desired results or expected returns. As a result of these and other factors, the Fund may lose value or fail to meet its investment objective or underperform its benchmark index or funds with similar investment objectives and strategies. Furthermore, active and frequent trading that can accompany active management, also called “high turnover,” may have a negative impact on performance. Active and frequent trading may result in higher brokerage costs or mark-up charges and tax costs, which are ultimately passed on to shareholders of the Fund. Active and frequent trading may also result in adverse tax consequences.

Market Risk—The value of, or income generated by, the investments held by the Fund may fluctuate rapidly and unpredictably. These fluctuations may be frequent and significant. In addition, the Fund may incur losses as a result of various market and economic factors, such as those affecting (or perceived to affect) individual companies or issuers or particular industries, or from broader influences, such as general market conditions. In addition, responses to government actions or interventions as well as developments related to economic, political (including geopolitical), social, public health, market, extreme weather, natural or man-made disasters, U.S. trade disputes or other disputes with specific countries that result in additional tariffs, trade barriers and/or investment restrictions in certain securities in those countries, or other conditions or events may cause volatility in financial markets and reduced liquidity in equity, credit and/or debt markets, which could adversely impact the Fund and its investments and their value and performance. Certain securities may be difficult to value under such conditions. The Fund's investments may perform poorly or underperform the general securities markets or other types of securities.

Municipal Securities Risk—Municipal securities are subject to a variety of risks generally associated with investments in debt instruments, including credit, interest rate, prepayment, liquidity, and valuation risks, as well as risks specific to municipal securities. The ability of issuers of municipal securities to pay their obligations can be adversely affected by, among other developments or events, (i) unfavorable legislative, tax, political, or other developments or events, including extreme weather, natural or man-made disasters and public health conditions, and (ii) changes in the economic and fiscal conditions of issuers of municipal securities or the federal government (in cases where it provides financial support to such issuers). In addition, the values of, and income generated by, municipal securities may fully or partially depend on a specific revenue or tax source, such as the taxing authority or revenue of a local government, the credit of a private issuer, or the current or anticipated revenues from a specific project. Developments adversely affecting such sources, such as economic, social or public health conditions, would negatively impact the cash flows of such sources and, in turn, municipal securities fully or partially backed by such sources. To the extent the Fund invests a substantial portion of its assets in municipal securities issued by issuers in a particular state, municipality or project or in municipal instruments that finance similar projects, such as those relating to education, healthcare, transportation, housing, utilities, or water and sewer, the Fund will be particularly sensitive to developments and events adversely affecting such state or municipality or with respect to such projects. Certain sectors of the municipal bond market have special risks that can affect them more significantly than the market as a whole. Because many municipal instruments are issued to finance similar projects (such as education, healthcare, transportation and utilities), conditions in these industries can significantly affect the overall municipal

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market. Municipal securities that are insured may be adversely affected by developments relevant to that particular insurer, or more general developments relevant to the market as a whole. Municipal securities can be difficult to value and be less liquid than other investments, which may affect performance.

Non-Diversified Fund Risk—The Fund is non-diversified and may invest in a smaller number of instruments than a diversified fund would. This increased investment in fewer issuers may result in the Fund’s shares being more sensitive to economic results of those issuing the securities. The value of the Fund’s shares may also be more volatile than the value of a fund which invests in more securities.

Non-Money Market Fund Risk—The Fund is not a money market fund (or equivalent to a money market fund), does not attempt to maintain a stable net asset value, and is not subject to the rules that govern the quality, maturity, liquidity, and other features of securities that money market funds may purchase. Under normal conditions, the Fund’s investments may be more susceptible than a money market fund to interest rate risk, valuation risk, credit risk, and other risks relevant to the Fund’s investments. The Fund’s net asset value will fluctuate and these fluctuations may be significant on certain days and for certain periods. There can be no guarantee that the Fund will generate higher returns than money market funds.

Preferred Securities Risk—A company’s preferred stock generally pays dividends only after the company makes required payments to holders of its bonds and other debt. For this reason, the value of preferred stock will usually react more strongly than bonds and other debt to actual or perceived changes in the company’s financial condition or prospects.

Prepayment Risk—Certain debt instruments, including loans and mortgage- and other asset-backed securities, are subject to the risk that payments on principal may occur more quickly or earlier than expected. If this occurs, the Fund might be forced to forego future interest income on the principal repaid early and to reinvest income or proceeds at generally lower interest rates, thus reducing the Fund’s yield. These types of instruments are particularly subject to prepayment risk, and offer less potential for gains, during periods of declining interest rates.

Privately Issued Mortgage-Related Securities Risk—Privately issued mortgage-related securities may not be subject to the same underwriting requirements for the underlying mortgages that are applicable to those mortgage-related securities that have a government or government-sponsored entity guarantee. As a result, the mortgage loans underlying privately issued mortgage-related securities may, and frequently do, have less favorable collateral, credit risk, or other underwriting characteristics than government or government-sponsored mortgage-related securities and have wider variances in a number of terms including interest rate, term, size, purpose, and borrower characteristics. The risk of nonpayment is greater for mortgage-related securities that are backed by loans that were originated under weak underwriting standards, including loans made to borrowers with limited means to make repayment. A level of risk exists for all loans, although, historically, the poorest performing loans have been those classified as subprime. “Subprime” loans are loans made to borrowers with lower credit ratings and/or a shorter credit history, who are more likely to default on their loan obligations as compared to more credit-worthy borrowers. Privately issued mortgage-related securities are not traded on an exchange. There may be a limited market for the securities, especially when there is a perceived weakness in the mortgage and real estate market sectors. Without an active trading market, mortgage-related securities held in the Fund’s portfolio may be particularly difficult to value because of the complexities involved in assessing the value of the underlying mortgage loans.

Real Estate Investments Risk—The Fund may invest in securities of real estate companies and companies related to the real estate industry, including real estate investment trusts (“REITs”), which are subject to the same risks as direct investments in real estate and the real estate market generally. The real estate industry is particularly sensitive to, among other things, economic downturns, changes in interest rates, changes in national, state or local real estate conditions, changes in the availability, cost and terms of mortgages (and other types of financing) and fluctuations in occupancy levels and demand for properties.

Regulatory and Legal Risk—U.S. and non-U.S. governmental agencies and other regulators regularly implement additional regulations (or amend regulations) and legislators pass new laws that affect the investments held by the Fund, the strategies used by the Fund or the level of regulation or taxation applying to the Fund, its investments or service providers. These developments impact the investment strategies, performance, costs and operations of the Fund or taxation of shareholders.

11 | SUMMARY PROSPECTUS

Repurchase Agreements and Reverse Repurchase Agreements Risk—In the event of the insolvency of the counterparty to a repurchase agreement or reverse repurchase agreement, recovery of the repurchase price owed to the Fund or, in the case of a reverse repurchase agreement, the securities or other assets sold by the Fund, may be delayed. Because reverse repurchase agreements may be considered to be the practical equivalent of borrowing funds, they constitute a form of leverage. If the Fund reinvests the proceeds of a reverse repurchase agreement at a rate lower than the cost of the agreement, entering into the agreement will lower the Fund’s yield.

Residential Mortgage-Backed Securities—Residential mortgage-backed securities (“RMBS”) are backed by residential mortgage loans and are particularly subject to the credit risk of the borrower. RMBS are subject to the risks of asset-backed securities generally, in particular credit risk and interest rate risk, and the residential real estate markets. Delinquencies and losses on RMBS generally increase during periods of adverse economic conditions. Investments in non-agency RMBS, which are not guaranteed by the U.S. government or a government sponsored enterprise, are subject to increased interest rate, credit and other risks, such as liquidity and valuation risks.

Restricted Securities Risk—Restricted securities, including those acquired through private placement transactions, generally cannot be sold to the public and may involve a high degree of business, financial and liquidity risk, which may result in substantial losses to the Fund.

Sovereign Debt Risk—The debt securities issued by sovereign entities may decline as a result of default or other adverse credit event resulting from a sovereign debtor's unwillingness or inability to repay principal and pay interest in a timely manner, which may be affected by a variety of factors, including its cash flow situation, the extent of its reserves, the availability of sufficient foreign exchange on the date a payment is due, the relative size of the debt service burden to the economy as a whole, the sovereign debtor's policy toward international lenders, and the political constraints to which a sovereign debtor may be subject. Sovereign debt risk is greater for issuers in emerging markets than issuers in developed countries.

To Be Announced (“TBA”) Transactions Risk—The Fund may enter into “To Be Announced” (“TBA”) transactions to purchase or sell mortgage-backed securities for a fixed price at a future date. In a TBA transaction, a seller agrees to deliver a mortgage-backed security to the Fund at a future date, but the seller does not specify the particular security to be delivered. Instead, the Fund agrees to accept or sell any security that meets specified terms. TBA purchase commitments involve a risk of loss if the value of the securities to be purchased declines prior to settlement date or if the counterparty may not deliver the securities as promised. Selling a TBA involves a risk of loss if the value of the securities to be sold goes up prior to settlement date. Margin requirements applicable to the Fund’s TBA transactions may increase the cost of TBA transactions to the Fund and impose added operational complexity.

U.S. Government Securities Risk—U.S. government securities may or may not be backed by the full faith and credit of the U.S. government. U.S. government securities are subject to the risks associated with fixed-income and debt securities, particularly interest rate risk and credit risk. In addition, U.S. government securities not backed by the full faith and credit of the U.S. government involve credit risk that is greater than other types of U.S. government securities.

When Issued, Forward Commitment and Delayed-Delivery Transactions Risk—When-issued, forward-commitment and delayed-delivery transactions involve a commitment to purchase or sell specific securities at a predetermined price or yield in which payment and delivery take place after the customary settlement period for that type of security. When purchasing securities pursuant to one of these transactions, payment for the securities is not required until the delivery date. However, the purchaser assumes the rights and risks of ownership, including the risks of price and yield fluctuations and the risk that the security will not be issued as anticipated.

Zero Coupon and Payment-In-Kind Securities Risk—Zero coupon and payment-in-kind securities pay no cash interest income and usually are sold at substantial discounts from their value at maturity. Zero coupon and payment-in-kind securities are subject to greater market value fluctuations from changing interest rates than debt obligations of comparable maturities that make current cash-pay interest payments. Additionally, investments in payment-in-kind loans are subject to increased price, volatility, credit risk and other risks.

PERFORMANCE INFORMATION

The following chart and table illustrate the variability of the Fund’s returns and are meant to provide some indication of the risks of investing in the Fund. The Fund is adopting the performance of the Guggenheim Strategy Fund II (the “Predecessor Fund”) as the result of a reorganization of the Predecessor Fund into the Fund (the “Reorganization”). Prior to the Reorganization, the Fund had not yet commenced operations. The bar chart shows the changes in the

SUMMARY PROSPECTUS | 12

Predecessor Fund’s performance from year to year. The table shows the Predecessor Fund's average annual returns for the one, five, and ten year, or if shorter, since inception periods, as applicable, as compared to those of a regulatorily required broad-based securities market index (Bloomberg U.S. Aggregate Bond Index) and an additional index (Bloomberg 1-3 Month U.S. Treasury Bill Index). Updated performance information is available on the Fund’s website at www.guggenheiminvestments.com or by calling 1-800-820-0888. The Fund’s (and the Predecessor Fund’s) past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future, including because there are certain differences in the investment strategies between the Fund and the Predecessor Fund and the Fund charges a unitary management fee (whereas the Predecessor Fund did not pay management fees). Had the Predecessor Fund been structured as an ETF, its performance may have differed.

After-tax returns shown in the table are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of any state or local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown. After-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts (“IRAs”).

During the periods shown in the chart above:	Quarter Ended	Return
Year to date (not reflected in chart above)	March 31, 2026	0.94%
Highest Quarter	June 30, 2020	3.28%
Lowest Quarter	March 31, 2020	-2.26%

Average Annual Total Returns (for the periods ended December 31, 2025)

	1 Year	5 Years	10 Years
Guggenheim Strategy Fund II
Return Before Taxes	5.22%	4.07%	3.36%
Return After Taxes on Distributions	3.00%	2.34%	1.97%
Return After Taxes on Distributions and Sale of Fund Shares	3.06%	2.37%	1.97%
Index
Bloomberg U.S. Aggregate Bond Index1 (reflects no deduction for fees, expenses or taxes)	7.30%	-0.36%	2.01%
Bloomberg 1-3 Month U.S. Treasury Bill Index2 (reflects no deduction for fees, expenses or taxes)	4.29%	3.24%	2.18%

Bloomberg U.S. Aggregate Bond Index is an index that measures the investment grade, U.S. dollar-denominated, fixed-rate taxable bond market, including Treasuries, government-related and corporate securities, fixed-rate agency mortgage-backed securities, asset-backed securities and commercial mortgage-backed securities (agency and non-agency).

13 | SUMMARY PROSPECTUS

Bloomberg 1-3 Month U.S. Treasury Bill Index is an index that tracks the market for treasury bills issued by the U.S. government with maturities of one to three months.

MANAGEMENT OF THE FUND

Guggenheim Partners Investment Management, LLC, also known as Guggenheim Investments, serves as the investment manager of the Fund. Guggenheim Investments utilizes a team-based approach that follows a disciplined investment process. The portfolio managers for the Fund are:

Name*	Experience with the Fund	Primary Title with Investment Manager
Steven H. Brown	Since Inception (Predecessor Fund since 2014)	Chief Investment Officer - Fixed Income, Senior Managing Director, and Portfolio Manager
Adam J. Bloch	Since Inception (Predecessor Fund since 2017)	Managing Director and Portfolio Manager
Evan L. Serdensky	Since Inception (Predecessor Fund since 2023)	Managing Director and Portfolio Manager
Daniel Gibbs	Since Inception	Director and Portfolio Manager

Each portfolio manager is jointly and primarily responsible for the day-to-day management of the Fund.

PURCHASE AND SALE OF FUND SHARES

The Fund is an actively-managed ETF. Unlike shares of traditional mutual funds, shares of the Fund are not individually redeemable and may only be purchased or redeemed directly from the Fund at NAV in large increments called “Creation Units” through APs. The Investment Manager may modify the Creation Unit size with prior notification to the Fund’s APs. See the ETF portion of the Guggenheim Investments website for the Fund’s current Creation Unit size. Creation Unit transactions are generally conducted in exchange for the deposit or delivery of a basket of instruments (including cash in lieu of any portion of such instruments) and/or an amount of cash that the Fund specifies each day. Except when aggregated in Creation Units, Fund shares are not redeemable securities of the Fund. Shares of the Fund are listed and trade on the Exchange, and individual investors can purchase or sell shares in much smaller increments for cash in the secondary market through a broker-dealer. These transactions, which do not involve the Fund, are made at market prices that may vary throughout the day and differ from the Fund’s NAV. As a result, you may pay more than NAV (at a premium) when you purchase shares, and receive less than NAV (at a discount) when you sell shares, in the secondary market.

Investors purchasing or selling shares in the secondary market may also incur additional costs, including brokerage commissions, and an investor may incur costs attributable to the difference between the highest price a buyer is willing to pay to purchase shares of the Fund (bid) and the lowest price a seller is willing to accept for shares of the Fund (ask) when buying or selling shares in the secondary market (the “bid-ask spread”). Information regarding the Fund’s NAV, market price, premiums and discounts, and bid-ask spreads, when available, can be accessed on Guggenheim Investments’ website at www.guggenheiminvestments.com and then selecting the Fund.

TAX INFORMATION

The Fund’s distributions are generally taxable to you as ordinary income, capital gains, or some combination of both, unless you are investing through a tax-advantaged arrangement, such as a 401(k) or an IRA, in which case your distributions may be taxed as ordinary income when withdrawn from such arrangement. A sale of Fund shares may result in a capital gain or loss.

PAYMENTS TO BROKER/DEALERS AND OTHER FINANCIAL INTERMEDIARIES

If you purchase Fund shares through a broker/dealer or other financial intermediary, the Investment Manager and its related companies may pay the intermediary for certain Fund-related activities, including those that are designed to make the intermediary more knowledgeable about exchange traded products, such as the Fund, as well as for marketing, education or other initiatives related to the sale or promotion of Fund shares. These payments may create a conflict of interest by influencing the broker/dealer or other intermediary and your sales person to recommend the Fund over another investment. Ask your sales person or visit your financial intermediary’s website for more information.

SUMMARY PROSPECTUS | 14

Ticker Symbol	Fund Name	Listing Exchange
GCSH	Guggenheim Ultra Short Income ETF	NYSE Arca, Inc.


Exchange-Traded Funds	\|	Fixed-Income	\|	4.27.2026