Before you invest, you may want to review the Fund’s prospectus, which contains more information about the Fund and its risks. You can find the Fund’s Statutory Prospectus and Statement of Additional Information and other information about the Fund online at https://etf.palmersquarefunds.com/funds/us-etfs/palmer-square-clo-senior-debt-etf. You may also obtain this information at no cost by calling 1-800-736-1145 or by sending an e-mail request to investorrelations@palmersquarecap.com. The Fund’s Prospectus and Statement of Additional Information, both dated October 30, 2026, as each may be amended or supplemented, are incorporated by reference into this Summary Prospectus.

Investment Objective

Palmer Square CLO Senior Debt ETF (the “Fund”) seeks to provide investment results that correspond generally to the price and yield (before the Fund’s fees and expenses) of Palmer Square CLO Senior Debt Index.

Fees and Expenses of the Fund

This table describes the fees and expenses 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.

*              The Investment Advisory Agreement provides that the investment advisor will pay, or require a sub-advisor or affiliate to pay, all operating expenses of the Fund except for advisory and sub-advisory fees, excluding interest charges, loan commitment fees and other fees and expenses on any borrowings, dividends and other expenses on securities sold short, taxes, brokerage commissions and other expenses incurred in placing orders for the purchase and sale of securities and other investment instruments, acquired fund fees and expenses, accrued deferred tax liability, distribution and shareholder servicing fees, and the Fund’s share of litigation expenses and other non-routine or extraordinary expenses.

1       Acquired Fund Fees and Expenses are indirect expenses incurred through the Fund’s investments in other investment companies, including money market funds used for cash management purposes.

Example

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that Fund’s operating expenses remain the same. The example does not take into account brokerage commissions that you may pay on your purchases and sales of shares of the Fund.

Although your costs may be higher or lower, based on these assumptions your costs would be:

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 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, the Fund’s portfolio turnover rate was 41% of the average value of its portfolio.

Principal Investment Strategies

The Fund uses a “passive management” (or indexing) approach to track the performance, before the Fund’s fees and expenses, of the Palmer Square CLO Senior Debt Index (the “Index”). The Index is a rules-based observable pricing and total return index for CLO debt for sale in the United States rated at the time of issuance as AAA or AA by at least one of the major rating agencies or an equivalent rating as determined by Palmer Square Capital Management LLC (the “Advisor”). Such debt is often referred to as the senior tranches of a CLO. The Advisor uses an indexing strategy to achieve the Fund’s objective. As a result, the Fund does not seek to “beat” the Index and does not take temporary or defensive positions when markets decline or appear overvalued.

To be eligible for inclusion in the Index, CLOs must be floating rate U.S. dollar-denominated tranches of “Arbitrage” CLOs collateralized by broadly syndicated loans originally rated AAA or AA (or an equivalent rating) with closing dates on or after January 1, 2009, with a minimum size of $500 million ($600 million prior to December 31, 2012). The CLO tranches eligible for inclusion in the Index include the top 50% of deals based on the per quarter deal issuance size. The CLOs must be managed by managers who manage at least three outstanding CLOs, at least two of which commenced on or after January 1, 2009. If the manager has more than two deals issued in one calendar year, the two largest deals based on par outstanding will be included in the Index. Eligible Index components are assigned a “diversity score” by Moody’s based on the diversification of the underlying loan assets of the CLO. CLOs with a diversity score of less than 45 during their reinvestment period are excluded from the Index. There is no limit to the number of components in the Index and individual weightings are based on market value. As of June 30, 2026, the Index was comprised of 761 CLOs, which are in turn each comprised of a large number of loans. While the Fund may concentrate its industry exposure to the extent of the Index, the Index is highly diversified as to issuers and industries.

Arbitrage CLOs are a pool of broadly syndicated loans which seek to capture the excess between (i) money coming from payment relating to interest and principal on underlying loans, and (ii) money going out in costs such as management fees. The following types of CLOs are not eligible for inclusion in the Index: (i) “Middle-market” CLOs which are collateralized by loans to small or medium-sized firms and/or by loans of a small or medium size, (ii) fixed rate, revolver, combo or step up notes, (iii) asset-backed CDOs collateralized by residential, commercial or consumer credit loans, (iv) emerging market CLOs collateralized by loans to or securities of emerging markets issuers and (v) “Balance Sheet” CLOs, which are loans securitized by the issuer.

The Fund does not hold all securities in the Index. The Fund uses a “representative sampling” index strategy, which involves investing in a representative sample of securities that collectively has an investment profile similar to that of the Index. The securities selected are expected to have, in the aggregate, investment characteristics (based on factors such as market value and industry weightings), fundamental characteristics (such as return variability, duration, maturity, credit ratings or yield) and liquidity measures similar to those of the Index. Under normal circumstances, the Fund will invest at least 80% of its net assets (including borrowings for investment purposes) in the component securities of the Index. At times, the Fund may utilize different techniques to track the Index, including: (i) purchasing

securities not contained in the Index that the Advisor believes are appropriate to substitute for securities in the Index, (ii) overweighting or underweighting component securities of the Index, and (iii) purchasing or selling securities in the Index in anticipation of their addition to or removal from the Index. Securities that are not components of the Index may include other CLOs and debt securities or pooled vehicles such as mutual funds or exchange-traded funds that the Advisor believes are consistent with tracking the Index.

The Index is rebalanced at the close of the last business day of each quarter, following the U.S. holiday calendar. Refinancing transactions are included in rebalances at the close of the last business day of each month, following the U.S. holiday calendar. The Fund rebalances its portfolio in accordance with the Index. Therefore, any changes to the Index’s rebalance schedule will result in corresponding changes to the Fund’s rebalance schedule. The Index is sponsored by the Advisor. The Index is calculated by NYSE Group, Inc. or its affiliates and is available for licensed users.

The Fund’s investment strategy may involve active and frequent trading of portfolio securities.

The Fund is non-diversified, which means it may invest a greater portion of its assets in fewer issuers than would otherwise be the case.

Principal Investment Risks

Risk is inherent in all investing, and you could lose money by investing in the Fund. A summary description of certain principal risks of investing in the Fund is set forth below. Before you decide whether to invest in the Fund, carefully consider these risk factors associated with investing in the Fund, which may cause investors to lose money. There can be no assurance that the Fund will achieve its investment objectives.

•   Collateralized Loan Obligations (“CLO”) Risk. CLO debt is payable solely from the proceeds of the CLO’s underlying assets and, therefore, if the income from the underlying loans is insufficient to make payments on the CLO debt, no other assets will be available for payment. The loans generate cash flow that is allocated among one or more classes of securities (“tranches”) that vary in risk and yield. The most senior debt tranche has the best credit quality and the lowest yield compared to the other tranches. More junior debt tranches are subordinated to senior tranches and carry higher credit risk but pay higher yields. The equity tranche has the highest potential yield but also has the greatest risk, as it bears the bulk of defaults from the underlying loans and helps to protect the more senior tranches from risk of these defaults. The Fund is also subject to asset manager, legal and regulatory, limited recourse, liquidity, redemption, and reinvestment risks because of the structure of CLOs in which the Fund may invest. A CLO’s performance is linked to the expertise of the CLO manager and its ability to manage the CLO portfolio. Changes in the regulation of CLOs may adversely affect the value of the CLO investments held by the Fund and the ability of the Fund to execute its investment strategy. CLO debt securities may be subject to redemption and the timing of redemptions may adversely affect the returns on CLO debt. The CLO manager may not find suitable assets in which to invest and the CLO manager’s opportunities to invest may be limited.

•   Passive Investment Risk. The Fund invests in the securities included in, or representative of, the Index regardless of their investment merit. The Fund does not attempt to outperform the Index or take defensive positions in declining markets. As a result, the Fund’s performance may be adversely affected by a general decline in the market segments relating to the Index. Because the Fund uses a representative sampling strategy, there is a risk that the securities selected for the Fund will not, in the aggregate, provide investment performance matching that of the Index.

•   Index-Related Conflicts of Interest Risk. The Advisor sponsors and is responsible for constructing the Index. Because the Advisor serves as both the Fund’s investment advisor and the sponsor of the Index, potential conflicts of interest may arise in connection with the design, maintenance and administration of the Index, including changes to the Index methodology and the selection or removal of Index constituents.

•   Tracking Error Risk. The Fund is subject to tracking error, which is the risk of divergence between the Fund’s performance and that of the Index. The Fund is subject to operating expenses and portfolio transaction costs not applicable to the Index and may incur costs to comply with legal and regulatory requirements not applicable to the Index including requirements to maintain pass-through tax treatment. Differences may also occur due to valuation differences, acceptance of custom baskets, corporate actions, timing of dividends and other operational differences. In addition, because of the practical difficulties and expense of purchasing all securities in the Index, the Fund does not purchase all securities in the Index and may hold securities that are not contained in the Index which may increase tracking error. The Fund may experience greater tracking error than ETFs that track other asset classes.

•   Sampling Risk. The Fund’s use of a representative sampling methodology may result in it holding a smaller number of securities than the Index. As a result, any adverse developments with respect to an issuer of securities held by the Fund could result in a greater decline in net asset value than would be the case if the Fund held all the securities in the Index. The representative sampling methodology may result in greater tracking error than a fund that uses a replication strategy, which seeks to hold all securities in the Index.

•   Market Risk. The market price of a security or other instrument may decline, sometimes rapidly or unpredictably, due to general market conditions that are not specifically related to a particular issuer, such as changes in economic conditions, investor sentiment, market liquidity, interest rates, credit conditions, currency exchange rates or expectations regarding corporate earnings. The market value of a security or instrument also may decline because of factors affecting a particular issuer, industry or sector, including increased costs, competitive pressures, labor shortages, regulatory developments or reduced demand for goods and services. Market conditions may cause the value of the Fund’s investments to fluctuate significantly and may adversely affect the Fund’s performance. The increasing use of artificial intelligence and other emerging technologies may create competitive advantages for some issuers while adversely affecting others. Companies that are unable to adapt to technological change or successfully implement new technologies may experience reduced revenues, increased costs, operational disruptions or competitive disadvantages that could negatively affect the value of the Fund’s investments.

•   Liquidity Risk. The Fund may not be able to sell some or all of the investments that it holds due to a lack of demand in the marketplace or other factors such as market turmoil, or if the Fund is forced to sell an illiquid asset to meet redemption requests or other cash needs it may only be able to sell those investments at a loss. In addition, the reduction in dealer market-making capacity in the fixed income markets that has occurred in recent years has the potential to decrease the liquidity of the Fund’s investments. Illiquid assets may also be difficult to value.

•   Valuation Risk. The sales price the Fund could receive for any portfolio investment may differ from the Fund’s valuation of the investment, particularly for securities that trade in thin or volatile markets or that are valued by the Advisor using a fair value methodology. Investors who purchase or redeem Fund shares on days when the Fund is holding fair-valued securities may receive fewer or more shares or lower or higher redemption proceeds than they would have received if the Advisor had not fair-valued the security or had used a different valuation methodology.

•   Credit Risk. If an issuer or guarantor of a debt security held by the Fund or a counterparty to a financial contract with the Fund defaults or is downgraded or is perceived to be less creditworthy, or if the value of the assets underlying a security declines, the value of the Fund’s portfolio will typically decline.

•   Extension Risk. If interest rates rise, repayments of fixed income securities may occur more slowly than anticipated by the market. This may drive the prices of these securities down because their interest rates are lower than the current interest rate and they remain outstanding longer.

•   Bank Loan Risk. The Fund’s investments in secured and unsecured participations in bank loans and assignments of such loans may create substantial risk. In making investments in such loans, which are made by banks or other financial intermediaries to borrowers, the Fund will depend primarily upon the creditworthiness of the borrower for payment of principal and interest which will expose the Fund to the credit risk of both the financial institution and the underlying borrower. The market for bank loans may not be highly liquid and the Fund may have difficulty selling them. Bank loans may be subject to extended settlement periods of more than 7 days, which may impair the Fund’s ability to sell or realize full value of such loans in a compressed period to satisfy redemption requests. In addition, bank loans may not be considered securities under U.S. federal securities laws and, as a result, investments in them may not have the protection of the anti-fraud provisions of the federal securities laws.

•   Privately-Issued Securities Risk. CLOs are generally privately-issued securities, and are normally purchased pursuant to Rule 144A or Regulation S under the Securities Act of 1933, as amended (the “Securities Act”). Privately-issued securities typically may be resold only to qualified institutional buyers, in a privately negotiated transaction, to a limited number of purchasers, or in limited quantities after they have been held for a specified period of time and other conditions are met for an exemption from registration. Because there may be relatively few potential purchasers for such securities, especially under adverse market or economic conditions or in the event of adverse changes in the financial condition of the issuer, the Fund may find it more difficult to sell such securities when it may be advisable to do so or it may be able to sell such securities only at prices lower than if such securities were more widely held and traded. At times, it also may be more difficult to determine the fair value of such securities for purposes of computing the Fund’s net asset value per share (“NAV”) due to the absence of an active trading market. There can be no assurance that a privately-issued security previously deemed to be liquid when purchased will continue to be liquid for as long as it is held.

•   Senior Loan Risk. The Fund may invest in floating or adjustable-rate senior loans. These investments are subject to increased credit and liquidity risks. Senior loan prices also may be adversely affected by supply-demand imbalances caused by conditions in the senior loan market or related markets. Senior loans may be subject to structural subordination and, although the loans may be senior to equity and other debt securities in the borrower’s capital structure, the loans may be subordinated to other obligations of the borrower or its subsidiaries.

•   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 the Secured Overnight Financing Rate (“SOFR”), may not accurately track market interest rates.

•   Mortgage-Backed and Asset-Backed Securities Risk. Mortgage-backed and asset-backed securities represent interests in “pools” of mortgages or other assets, including consumer loans or receivables held in trust. Mortgage-backed securities are subject to “prepayment risk” (the risk that borrowers will repay a loan more quickly in periods of falling interest rates) and “extension risk” (the risk that borrowers will repay a loan more slowly in periods of rising interest rates). If the Fund invests in mortgage-backed or asset-backed securities that are subordinated to other interests in the same pool, the Fund may only receive payments after the pool’s obligations to other investors have been satisfied. An unexpectedly high rate of defaults on the assets held by a pool may limit substantially the pool’s ability to make payments of principal or interest to the Fund, reducing the values of those securities or in some cases rendering them worthless. The Fund’s investments in other asset-backed securities are subject to risks similar to those associated with mortgage-backed securities, as well as additional risks associated with the nature of the assets and the servicing of those assets.

•   Non-US Issuer Risk. Securities of issuers domiciled outside the United States or with significant operations or revenues outside the United States, and securities tied economically to countries outside the United States may lose value because of adverse political, social, economic or market developments in the countries or regions in which the issuers are domiciled, operate or generate revenue or to which the securities are tied economically or due to changes in foreign currency exchange rates against the U.S. dollar and/or currencies of other countries. Securities markets in certain countries may be more volatile and/or less liquid than those in the United States and may be subject to different accounting and regulatory standards.

•   Reference Rate and Benchmark Risk. The Fund may invest in securities that pay interest based on SOFR or other benchmark or reference rates. Changes in the availability, liquidity, methodology, administration or regulation of a reference rate may adversely affect the value, liquidity or return of the Fund’s investments. In addition, reference rates may not perform in the same manner as historical benchmark rates, including LIBOR, and may not accurately track broader market interest rates. Differences between reference rates and other market interest rates may result in basis risk and adversely affect the performance of the Fund’s investments.

•   CLO Manager Risk. CLOs are managed by investment advisers independent of the Advisor. CLO managers are responsible for selecting, managing and replacing the underlying loans within a CLO. As such, each CLO is subject to the risk of poor selections by its CLO manager. Adverse security selection by a CLO manager may cause a CLO to experience difficulty in making its stipulated distribution payments to investors because of the poor performance of the underlying bank loans: (i) entering into bankruptcy proceedings; and/or (ii) are in default as to the repayment of their loan balances. Generally, CLO managers mitigate these risks by maintaining a pool of underlying bank loans in excess of the minimum necessary to finance a CLO’s stipulated distribution payments. In addition, 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.

•   Prepayment or Call Risk. Many issuers have a right to prepay their securities. If interest rates fall, an issuer may exercise this right. If this happens, the Fund will not benefit from the rise in market price that normally accompanies a decline in interest rates and will be forced to reinvest prepayment proceeds at a time when yields on securities available in the market are lower than the yield on the prepaid security. The Fund may also lose any premium it paid on the security.

•   Market Events, Geopolitical Developments and Government Actions Risk. Market volatility may occur in response to economic, political, geopolitical and other events, including armed conflicts, sanctions, trade disputes, tariffs, cyberattacks, terrorist activities and disruptions to energy and commodity markets. Governmental and central bank responses to such events may not achieve their intended objectives and may have unintended consequences. These events and related policy actions may adversely affect financial markets and the value, liquidity and performance of the Fund’s investments.

•   Cybersecurity Risk. Cybersecurity incidents may allow an unauthorized party to gain access to Fund assets, customer data (including private shareholder information), or proprietary information, or cause the Fund, the Advisor, and/or other service providers (including custodians, sub-custodians, transfer agents and financial intermediaries) to suffer data breaches, data corruption or loss of operational functionality. In an extreme case, a shareholder’s ability to exchange or redeem Fund shares may be affected. Issuers of securities in which the Fund invests are also subject to cybersecurity risks, and the value of those securities could decline if the issuers experience cybersecurity incidents.

•   Non-Diversification Risk. The Fund is classified as “non-diversified,” which means the Fund may invest a larger percentage of its assets in the securities of a smaller number of issuers than a diversified fund. Investment in securities of a limited number of issuers exposes the Fund to greater market risk and potential losses than if its assets were diversified among the securities of a greater number of issuers.

•   Portfolio Turnover Risk. Active and frequent trading of the Fund’s portfolio securities may lead to higher transaction costs and may result in a greater number of taxable transactions than would otherwise be the case, which could negatively affect the Fund’s performance. A high rate of portfolio turnover is 100% or more.

•   Counterparty Risk. Counterparty risk may arise because of the counterparty’s financial condition (i.e., financial difficulties, bankruptcy, or insolvency), market activities and developments, or other reasons, whether foreseen or not. A counterparty’s inability to fulfill its obligation may result in a significant financial loss to the Fund. The Fund may be unable to recover its investment from the counterparty or may obtain a limited recovery, and/or recovery may be delayed.

Risks of ETF Structure

•   Cash Transaction Risk. The Fund intends to effect Creation Unit transactions primarily for cash, rather than in-kind securities, because of the nature of the Fund’s investments. 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 Authorized Participants (“APs”). Cash creations and redemptions may increase transaction costs borne by the Fund and may adversely affect the Fund’s performance. To the extent that these costs are borne by Authorized Participants or other market participants, they also may be reflected in the bid-ask spread for the Fund’s Shares.

•   Exchange Listing and Trading Risk. Although Fund shares are listed for trading on the NYSE Arca Exchange (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,

Investment Advisor

Palmer Square Capital Management LLC

Portfolio Managers

Angie K. Long, Chief Investment Officer and Portfolio Manager, and Taylor R. Moore, Managing Director and Portfolio Manager, are jointly and primarily responsible for the day-to-day management of the Fund. Ms. Long and Mr. Moore have managed the Fund since it commenced operations in 2024.

Purchase and Sale of Shares

The Fund issues and redeems Shares at NAV only in large blocks known as “Creation Units,” which only APs (typically, broker-dealers) may purchase or redeem. The Fund generally issues and redeems Creation Units in exchange for a portfolio of securities (the “Deposit Securities”) and/or a designated amount of U.S. cash. The Fund currently expects to issue Creation and Redemption Units primarily for cash because of the types of assets in which it invests.

Shares are listed on a national securities exchange, such as the Exchange, and individual Shares may only be bought and sold in the secondary market through brokers at market prices, rather than NAV. Because Shares trade at market prices rather than NAV, Shares may trade at a price greater than NAV (premium) or less than NAV (discount).

An investor may incur costs attributable to the difference between the highest price a buyer is willing to pay to purchase Shares (the “bid” price) and the lowest price a seller is willing to accept for Shares (the “ask” price) when buying or selling Shares in the secondary market. This difference in bid and ask prices is often referred to as the “bid-ask spread.”

Recent information regarding the Fund’s NAV, market price, how often Shares traded on the Exchange at a premium or discount and bid-ask spreads can be found on the Fund’s website at etf.palmersquarefunds.com.

Tax Information

The Fund’s distributions are generally taxable and will ordinarily be taxed as ordinary income or capital gains, unless you are investing through a tax-advantaged arrangement, such as a 401(k) plan or an individual retirement account. Shareholders investing through such tax-advantaged arrangements may be taxed later upon withdrawal of monies from those arrangements.

Payments to Broker-Dealers and Other Financial Intermediaries

If you purchase shares of the Fund through a broker-dealer or other financial intermediary (such as a bank), the Fund and its related companies may pay the intermediary for the sale of Fund shares and related services. These payments may create a conflict of interest by influencing the broker-dealer or other intermediary and your salesperson to recommend the Fund over another investment. Ask your salesperson or visit your financial intermediary’s website for more information.