Investment Risks

Dec. 30, 2025

F/m Compoundr Ultrashort Treasury ETF | Affiliated Fund Risk

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● Affiliated Fund Risk. Affiliated fund risk is the risk that the Adviser may select Underlying Funds and/or investments for the Fund based on its own financial interests or other business considerations rather than the Fund’s interests. The Adviser may be subject to potential conflicts of interest in selecting the Underlying Funds because affiliated Underlying Funds pay an advisory fee to the Adviser based on their assets, the fees paid to the Adviser by some affiliated Underlying Funds may be higher than other Underlying Funds or the Underlying Funds may be in need of assets to enhance their appeal to other investors, liquidity and trading and/or to enable them to carry out their investment strategies. However, the Adviser is a fiduciary to the Fund and is legally obligated to act in the Fund’s best interest when selecting Underlying Funds.

F/m Compoundr Ultrashort Treasury ETF | Asset Class Risk

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● Asset Class Risk. The securities and other assets in the Underlying Index or in the Fund’s portfolio may underperform in comparison to financial markets generally, a particular financial market, another index, or other asset classes.

F/m Compoundr Ultrashort Treasury ETF | Call Risk

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● Call Risk. During periods of falling interest rates, an issuer of a callable bond held by an Underlying Fund may “call” or repay the security before its stated maturity, and the Underlying Fund may have to reinvest the proceeds in securities with lower yields, which would result in a decline in the Fund’s performance, or in securities with greater risks or with other less favorable features

F/m Compoundr Ultrashort Treasury ETF | Cash or Cash Equivalents Risk

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● Cash or Cash Equivalents Risk. At any time, the Fund may have significant investments in cash or cash equivalents. When a substantial portion of a portfolio is held in cash or cash equivalents, there is the risk that the value of the cash account, including interest, will not keep pace with inflation, thus reducing purchasing power over time. Additionally, in rising markets, holding cash or cash equivalents may adversely affect the Fund’s performance and the Fund may not achieve its investment objectives.

F/m Compoundr Ultrashort Treasury ETF | Concentration Risk

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● Concentration Risk. The Fund may be susceptible to an increased risk of loss, including losses due to adverse events that affect the Fund’s investments more than the market as a whole, to the extent that the Fund’s investments are concentrated in a particular issue, issuer or issuers, country, market segment, or asset class.

F/m Compoundr Ultrashort Treasury ETF | Credit Risk

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● Credit Risk. The value of your investment in the Fund may change in response to changes in the credit ratings of the Fund’s portfolio securities, including with respect to Underlying Funds. Generally, investment risk and price volatility increase as a security’s credit rating declines. The financial condition of an issuer of a fixed income security held by such Fund or an Underlying Fund may cause it to default or become unable to pay interest or principal due on the security.

F/m Compoundr Ultrashort Treasury ETF | Cyber Security Risk

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● Cyber Security Risk. Cyber security risk is the risk of an unauthorized breach and access to the Fund’s assets, Fund or customer data (including private shareholder information), or proprietary information, or the risk of an incident occurring that causes the Fund, the Adviser, custodian, transfer agent, distributor and other service providers and financial intermediaries to suffer data breaches, data corruption or lose operational functionality or prevent the Fund’s investors from purchasing, redeeming or exchanging Shares or receiving distributions. While the Fund and the Adviser have established business continuity plans and risk management systems seeking to address system breaches or failures, there are inherent limitations in such plans and systems. Further, the Fund cannot control the cybersecurity plans and systems of the Fund’s service providers, market makers, or issuers of securities in which the Fund invests. The Fund and the Adviser have limited ability to prevent or mitigate cyber security incidents affecting third-party service providers, and such third-party service providers may have limited indemnification obligations to the Fund or the Adviser. Successful cyber-attacks or other cyber-failures or events affecting the Fund or its service providers may adversely impact and cause financial losses to the Fund or its shareholders. Issuers of securities in which the Fund invests are also subject to cyber security risks, and the value of these securities could decline if the issuers experience cyberattacks or other cyber-failures.

F/m Compoundr Ultrashort Treasury ETF | Duration Risk

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● Duration Risk. Duration is a measure of the price sensitivity of a debt security or portfolio to interest rate changes. Duration risk is the risk that longer-duration debt securities will be more volatile and thus more likely to decline in price, and to a greater extent, in a rising interest rate environment than shorter-duration debt securities.

F/m Compoundr Ultrashort Treasury ETF | ETF Risk

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● ETF Risk. The Fund is an ETF, and, as a result of an ETF’s structure, it is exposed to the following risks:

● Authorized Participants, Market Makers and Liquidity Providers Concentration Risk. Only an authorized participant (“AP”) may engage in creation or redemption transactions directly with the Fund. The Fund has a limited number of financial institutions that are institutional investors and may act as APs. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, there may be significantly diminished trading in Fund Shares, Fund Shares may trade at a material discount to net asset value (“NAV”), and Fund Shares may possibly face delisting: (i) if APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions. These events, among others, may lead to Fund Shares trading at a premium or discount to NAV. Thus, you may pay more (or less) than the NAV when you buy Shares of the Fund in the secondary market, and you may receive less (or more) than NAV when you sell those Shares in the secondary market. A diminished market for an ETF’s shares substantially increases the risk that a shareholder may pay considerably more or receive significantly less than the underlying value of the ETF shares bought or sold. In periods of market volatility, APs, market makers and/or liquidity providers may be less willing to transact in Fund Shares.

● Secondary Market Trading Risk. Although Shares are intended to be listed on a national securities exchange, The Nasdaq Stock Market LLC (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that an active or liquid trading market for them will develop or be maintained. In addition, trading in Shares on the Exchange may be halted. During periods of market stress, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount). This risk is heightened in times of market volatility or periods of steep market declines.

● Shares May Trade at Prices Other Than NAV Risk. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount). This risk is heightened in times of market volatility or periods of steep market declines. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Shares trade on a stock exchange at prices at, above, or below the Fund’s most recent NAV. The Fund’s NAV is calculated at the end of each business day and fluctuates with changes in the market value of the Fund’s holdings. The trading price of the Shares fluctuates continuously throughout trading hours on the exchange, based on both the relative market supply of, and demand for, the Shares and the underlying value of the Fund’s portfolio holdings. As a result, the trading prices of the Shares may deviate from the Fund’s NAV. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount). This risk is heightened in times of market volatility or periods of steep market declines. Any of these factors, among others, may lead to the Shares trading at a premium or discount to NAV.

F/m Compoundr Ultrashort Treasury ETF | Fixed-Income Market Risk

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● Fixed-Income Market Risk. The market value of a fixed-income security may decline due to general market conditions that are not specifically related to a particular issuer, such as real or perceived adverse economic conditions, changes in the outlook for corporate earnings, changes in interest or currency rates or adverse investor sentiment generally. The fixed-income securities market can be susceptible to increases in volatility and decreases in liquidity. Liquidity can decline unpredictably in response to overall economic conditions or credit tightening. Increases in volatility and decreases in liquidity may be caused by a rise in interest rates (or the expectation of a rise in interest rates). An unexpected increase in Fund redemption requests, including requests from shareholders who may own a significant percentage of the Fund’s Shares, which may be triggered by market turmoil or an increase in interest rates, could cause the Fund to sell its holdings at a loss or at undesirable prices and adversely affect the Fund’s Share price and increase the Fund’s liquidity risk, expenses and/or taxable distributions.

F/m Compoundr Ultrashort Treasury ETF | Fixed Income Securities Risk

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● Fixed Income Securities Risk. Fixed-income securities are subject to the risk of the issuer’s inability to meet principal and interest payments on its obligations (i.e., credit risk) and are subject to price volatility resulting from, among other things, interest rate sensitivity, market perception of the creditworthiness of the issuer, willingness of broker-dealers and other market participants to make markets in the applicable securities, and general market liquidity (i.e., market risk). Lower rated fixed-income securities have greater volatility because there is less certainty that principal and interest payments will be made as scheduled. There is a risk that a lack of liquidity or other adverse credit market conditions may hamper the Fund’s ability to sell the debt securities in which it invests.

F/m Compoundr Ultrashort Treasury ETF | High Portfolio Turnover Risk

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● High Portfolio Turnover Risk. In seeking to track the Underlying Index, the Fund may incur relatively high portfolio turnover. The active and frequent trading of the Fund’s portfolio securities may result in increased transaction costs to the Fund, including brokerage commissions, dealer mark-ups and other transaction costs, which could reduce the Fund’s return.

F/m Compoundr Ultrashort Treasury ETF | Income Risk

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● Income Risk. Under certain market conditions, the Fund may invest in Underlying Funds that are subject to income risk. The Fund’s income may decline when interest rates fall or if there are defaults in its portfolio. This decline can occur because the Fund may subsequently invest in lower-yielding securities as debt securities in its portfolio mature, are near maturity or are called, or the Fund otherwise needs to purchase additional debt securities.

F/m Compoundr Ultrashort Treasury ETF | Index-Related Risk

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● Index-Related Risk. There is no guarantee that the Fund’s investment results will have a high degree of correlation to those of the Underlying Index or that the Fund will achieve its investment objective. Market disruptions and regulatory restrictions could have an adverse effect on the Fund’s ability to adjust its exposure to the required levels in order to track the Underlying Index. The Index Provider may rely on various sources of information to assess the criteria of components of the Underlying Index, including information that may be based on assumptions and estimates. Neither the Fund nor the Adviser can offer assurances that the Index Provider’s methodology or sources of information will provide an accurate assessment of included components. Errors in index data, index computations or the construction of the Underlying Index in accordance with its methodology may occur from time to time and may not be identified and corrected by the Index Provider for a period of time or at all, which may have an adverse impact on the Fund and its shareholders. Unusual market conditions or other unforeseen circumstances (such as natural disasters, political unrest or war) may impact the Index Provider or a third-party Provider and may cause the Index Provider to postpone a scheduled rebalance, which could cause the Underlying Index to vary from its normal or expected composition.

F/m Compoundr Ultrashort Treasury ETF | Index Rebalance Risk

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● Index Rebalance Risk. Pursuant to the methodology that the Index Provider uses to calculate and maintain the Underlying Index, the Fund may own a significant portion of the Underlying Funds included in the Underlying Index. Any Underlying Fund may be removed from the Underlying Index if it does not comply with its eligibility requirements. As a result, the Fund may be forced to sell shares of Underlying Funds at inopportune times or for prices other than at current market values or may elect not to sell such shares on the day that they are removed from the Underlying Index, due to market conditions or otherwise. Due to these factors, the variation between the Fund’s annual return and the return of the Underlying Index may increase significantly. Apart from scheduled rebalances, the Index Provider may carry out additional ad hoc rebalances to the Underlying Index to, for example, correct an error in the selection of constituents. When the Fund in turn rebalances its portfolio, any transaction costs and market exposure arising from such portfolio rebalancing will be borne by the Fund and its shareholders. Unscheduled rebalances may also expose the Fund to additional tracking error risk. Therefore, errors and additional ad hoc rebalances carried out by the Index Provider and/or the Index Calculator may increase the Fund’s costs and market exposure.

F/m Compoundr Ultrashort Treasury ETF | Inflation Risk

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● Inflation Risk. Under certain market conditions, the Fund may invest in an Underlying Fund that is subject to inflation risk. Inflation risk is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the present value of the Fund’s assets may decline.

F/m Compoundr Ultrashort Treasury ETF | Interest Rate Risk

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● Interest Rate Risk. Interest rate risk is the risk of losses attributable to changes in interest rates. In general, if prevailing interest rates rise, the values of debt instruments tend to fall, and if interest rates fall, the values of debt instruments tend to rise. Changes in the value of a debt instrument usually will not affect the amount of income the Fund receives from it but will generally affect the value of your investment in the Fund. Changes in interest rates may also affect the liquidity of the Fund’s investments in debt instruments. In general, the longer the maturity or duration of a debt instrument, the greater its sensitivity to changes in interest rates. The Fund is subject to the risk that the income generated by its investments may not keep pace with inflation. Actions by governments and central banking authorities can result in increases or decreases in interest rates, which may negatively affect the value of debt instruments held by the Fund and have a negative impact on the Fund’s performance and NAV. Rising interest rates may prompt redemptions from the Fund, which may force the Fund to sell investments at a time when it is not advantageous to do so, which could result in losses. During periods of very low or negative interest rates, the Fund may be unable to maintain positive returns or pay dividends to Fund shareholders. Very low or negative interest rates may magnify interest rate risk. Changing interest rates, including rates that fall below zero, may have unpredictable effects on markets, result in heightened market volatility and detract from the Fund’s performance to the extent the Fund is exposed to such interest rates. Additionally, under certain market conditions in which interest rates are low and the market prices for portfolio securities have increased, the Fund may have a very low or even negative yield. A low or negative yield would cause the Fund to lose money in certain conditions and over certain time periods. An increase in interest rates will generally cause the value of securities held by the Fund to decline, may lead to heightened volatility in the fixed-income markets and may adversely affect the liquidity of certain fixed-income investments, including those held by the Fund. The historically low-interest rate environment in recent years heightens the risks associated with rising interest rates.

F/m Compoundr Ultrashort Treasury ETF | Investment in Underlying Funds Risk

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● Investment in Underlying Funds Risk. The Fund’s investment in shares of Underlying Funds subjects it to the risks of owning the securities of the Underlying Fund, as well as the same structural risks faced by an investor purchasing shares of the Underlying Fund, including authorized participant concentration risk, market maker risk, premium/discount risk and trading issues risk. As a shareholder in another ETF, the Fund bears its proportionate share of the ETF’s expenses, subjecting Fund shareholders to duplicative expenses. Since the Fund invests in the Underlying Funds, the Fund’s investment performance and risks are likely to be directly related to those of the Underlying Funds. The Fund’s NAV will change with changes in the value of the Underlying Funds and other assets that the Fund holds. The shares of an Underlying Fund may trade at a premium or discount to the Underlying Fund’s NAV. Investors in the Fund will indirectly bear the expenses charged by the Underlying Funds, and an investment in the Fund may entail more expenses than a direct investment in the Underlying Funds.

F/m Compoundr Ultrashort Treasury ETF | Issuer Risk

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● Issuer Risk. The performance of the Fund’s investment in Underlying Funds depends on the performance of individual securities or other assets to which the Underlying Fund has exposure. The value of securities or other assets may decline, or perform differently from the market as a whole, due to changes in the financial condition or credit rating of the issuer or counterparty.

F/m Compoundr Ultrashort Treasury ETF | Liquidity Risk

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● Liquidity Risk. Certain securities held by an Underlying Fund may be difficult (or impossible) to sell at the time and at the price the Adviser would like. As a result, an Underlying Fund may have to hold these securities longer than it would like and may forego other investment opportunities. There is the possibility that an Underlying Fund may lose money or be prevented from realizing capital gains if it cannot sell a security at a particular time and price.

F/m Compoundr Ultrashort Treasury ETF | Management Risk

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● Management Risk. As the Fund’s portfolio will not always replicate the Underlying Index fully, it is subject to the risk that the Adviser’s investment strategy may not produce the intended results. The Adviser’s primary use of a replication methodology, and the use of a representative sampling indexing strategy under certain circumstances, to manage the Fund’s portfolio may subject the Fund to an increased risk of tracking error, in that the securities selected in aggregate for the Fund’s portfolio may not have an investment profile similar to those of the Underlying Index.

F/m Compoundr Ultrashort Treasury ETF | Market Risk

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● Market Risk. Economies and financial markets throughout the world are becoming increasingly interconnected, which increases the likelihood that events or conditions in one country or region will adversely impact markets or issuers in other countries or regions. The value of the Fund and/or the Underlying Fund's investments may be negatively affected by adverse changes in overall economic or market conditions, such as the level of economic activity and productivity, unemployment and labor force participation rates, inflation or deflation (and expectations for inflation or deflation), interest rates, demand and supply for particular products or resources including labor, and debt levels and credit ratings, among other factors. Such adverse conditions may contribute to an overall economic contraction across entire economies or markets, which may negatively impact the profitability of issuers operating in those economies or markets. The Fund and the Underlying Funds subject to the risk that geopolitical events will disrupt securities markets and adversely affect global economies and markets. The Fund and the Underlying Funds’ NAV and market price may fluctuate significantly in response to these and other factors including economic, political, or financial events, public health crises (such as epidemics or pandemics), or other disruptive events (whether real, expected or perceived) in the U.S. and global markets. The Fund could lose money over short periods due to short-term market movements and over longer periods during more prolonged market downturns. As a result, an investor could lose money over short or long periods of time.

F/m Compoundr Ultrashort Treasury ETF | Market Price Risk

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● Market Price Risk. Fund Shares are listed for trading on an exchange and are bought and sold in the secondary market at market prices. The market prices of Shares will fluctuate, in some cases materially, in response to changes in the NAV and supply and demand for Shares. As a result, the trading prices of Shares may deviate significantly from the NAV during periods of market volatility. The Adviser cannot predict whether Shares will trade above, below or at their NAV. Given the fact that Shares can be created and redeemed in Creation Units (defined below), the Adviser believes that large discounts or premiums to the NAV of Shares should not be sustained in the long-term. If market makers exit the business or are unable to continue making markets in Fund Shares, Shares may trade at a discount to NAV like closed-end fund shares and may even face delisting (that is, investors would no longer be able to trade Shares in the secondary market). Further, while the creation/redemption feature is designed to make it likely that Shares normally will trade close to the value of the Fund’s holdings, disruptions to creations and redemptions, including disruptions at market makers, APs or market participants, or during periods of significant market volatility, may result in market prices that differ significantly from the value of the Fund’s holdings. Although market makers will generally take advantage of differences between the NAV and the market price of Fund Shares through arbitrage opportunities, there is no guarantee that they will do so. In addition, the securities held by the Fund may be traded in markets that close at a different time than the exchange on which the Fund’s Shares trade. 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, fixing or settlement times, bid-ask spreads and the resulting premium or discount to the Shares’ NAV is likely to widen. Further, secondary markets may be subject to irregular trading activity, wide bid-ask spreads and extended trade settlement periods, which could cause a material decline in the Fund’s NAV. The Fund’s investment results are measured based upon the daily NAV of the Fund. Investors purchasing and selling Shares in the secondary market may not experience investment results consistent with those experienced by those APs creating and redeeming Shares directly with the Fund.

F/m Compoundr Ultrashort Treasury ETF | Market Trading Risk

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● Market Trading Risk. The Fund faces numerous market trading risks, including the potential lack of an active market for Fund Shares (including through a trading halt), losses from trading in secondary markets, periods of high volatility, and disruptions in the process of creating and redeeming Fund Shares. Any of these factors, among others, may lead to the Fund’s Shares trading in the secondary market at a premium or discount to NAV or to the intraday value of the Fund’s portfolio holdings. If you buy Fund Shares at a time when the market price is at a premium to NAV or sell Fund Shares at a time when the market price is at a discount to NAV, you may pay significantly more or receive significantly less than the underlying value of the Fund Shares.

F/m Compoundr Ultrashort Treasury ETF | New Fund Risk

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● New Fund Risk. The Fund is a newly-organized management investment company with a limited operating history. In addition, there can be no assurance that the Fund will grow to, or maintain, an economically viable size, in which case the Board of Directors (the “Board”) of The RBB Fund, Inc. (the “Company”) may determine to liquidate the Fund.

F/m Compoundr Ultrashort Treasury ETF | Non-Correlation Risk

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● Non-Correlation Risk. The Fund’s return may not match the return of the Underlying Index for a number of reasons. The Fund incurs operating expenses not applicable to the Underlying Index, and may incur costs in buying and selling securities, especially when rebalancing the Fund’s portfolio holdings to reflect changes in the composition of the Underlying Index. In addition, the Fund’s portfolio holdings may not exactly replicate the securities included in the Underlying Index or the ratios between the securities included in the Underlying Index. Additionally, in order to comply with its investment strategies and policies, the Fund portfolio may deviate from the composition of the Underlying Index. Accordingly, the Fund's return may underperform the return of the Underlying Index.

F/m Compoundr Ultrashort Treasury ETF | Operational Risk

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● Operational Risk. The Fund is exposed to operational risks arising from a number of factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties, or other third parties, failed or inadequate processes and technology or systems failures. The Fund and the Adviser seek to reduce these operational risks through controls and procedures. However, these measures do not address every possible risk and may be inadequate to address significant operational risks.

F/m Compoundr Ultrashort Treasury ETF | Passive Investment Risk

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● Passive Investment Risk. The Fund is not actively managed and may be affected by a general decline in market segments related to the Underlying Index. The Fund invests in securities included in, or representative of, the Underlying Index, regardless of their investment merits. Although the Fund is permitted to invest up to 100% of its assets in money market instruments for temporary defensive or liquidity purposes, it may only do so for up to ninety (90) days.

F/m Compoundr Ultrashort Treasury ETF | Premium/Discount Risk

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● Premium/Discount Risk. The market price of the Fund’s Shares will generally fluctuate in accordance with changes in the Fund’s NAV as well as the relative supply of and demand for Shares on the Exchange. The Adviser cannot predict whether Shares will trade below, at, or above their NAV because the Shares trade on the Exchange at market prices and not at NAV. Price differences may be due, in large part, to the fact that supply and demand forces at work in the secondary trading market for Shares will be closely related, but not identical, to the same forces influencing the prices of the holdings of the Fund trading individually or in the aggregate at any point in time. However, given that Shares can only be purchased and redeemed in Creation Units, and only to and from broker-dealers and large institutional investors that have entered into participation agreements (unlike shares of closed-end funds, which frequently trade at appreciable discounts from, and sometimes at premiums to, their NAV), the Adviser believes that large discounts or premiums to the NAV of Shares should not be sustained. During stressed market conditions, the market for the Fund’s Shares may become less liquid in response to deteriorating liquidity in the market for the Fund’s underlying holdings, which could in turn lead to differences between the market price of the Fund’s Shares and their NAV and the bid/ask spread on the Fund’s Shares may widen.

F/m Compoundr Ultrashort Treasury ETF | Pricing Risk

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● Pricing Risk. If market conditions make it difficult to value some investments, the Fund may value these investments using more subjective methods, such as fair value pricing. In such cases, the value determined for an investment could be different from the value realized upon such investment’s sale. As a result, you could pay more than the market value when buying Fund Shares or receive less than the market value when selling Fund Shares.

F/m Compoundr Ultrashort Treasury ETF | Rating Agencies Risk

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● Rating Agencies Risk. Ratings are not an absolute standard of quality, but rather general indicators that reflect only the view of the originating rating agencies from which an explanation of the significance of such ratings may be obtained. There is no assurance that a particular rating will continue for any given period of time or that any such rating will not be revised downward or withdrawn entirely if, in the judgment of the agency establishing the rating, circumstances so warrant. A downward revision or withdrawal of such ratings, or either of them, may have an effect on the liquidity or market price of the securities in which an Underlying Fund invests.

F/m Compoundr Ultrashort Treasury ETF | Reinvestment Risk

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● Reinvestment Risk. Reinvestment risk is the risk that the Fund’s portfolio will decline if and when the Fund reinvests the proceeds from the disposition of its portfolio securities at market interest rates that are below the portfolio’s current earnings rate. A decline in income could negatively affect the market price of the Shares.

F/m Compoundr Ultrashort Treasury ETF | Reverse Repurchase Agreements Risk

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● Reverse Repurchase Agreements Risk. Reverse repurchase agreements are a form of secured borrowing and subject the Fund to the risks associated with leverage, including exposure to potential gains and losses in excess of the amount invested, resulting in an increase in the speculative character of the Fund's outstanding Shares. Reverse repurchase agreements involve the risk that the investment return earned by the Fund (from the investment of the proceeds) will be less than the interest expense of the transaction, that the market value of the securities sold by the Fund will decline below the price the Fund is obligated to pay to repurchase the securities, and that the other party may fail to return the securities in a timely manner or at all.

F/m Compoundr Ultrashort Treasury ETF | Risk of Investing in the U.S.

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● Risk of Investing in the U.S. Certain changes in the U.S. economy, such as when the U.S. economy weakens or when its financial markets decline, may have an adverse effect on the securities to which the Fund has exposure.

F/m Compoundr Ultrashort Treasury ETF | Sector Risk

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● Sector Risk. To the extent the Fund invests more heavily in particular sectors of the economy, its performance will be especially sensitive to developments that significantly affect those sectors.

F/m Compoundr Ultrashort Treasury ETF | Securities Lending Risk

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● Securities Lending Risk. The Fund may engage in securities lending (i.e., lend portfolio securities to institutions, such as certain broker-dealers). Securities lending involves the risk that the Fund may lose money because the borrower of the loaned securities fails to return the securities in a timely manner or at all. The Fund could also lose money in the event of a decline in the value of collateral provided for loaned securities or a decline in the value of any investment made with cash collateral. These events could also trigger adverse tax consequences for the Fund. The Fund could also experience a loss or delay in the recovery of its securities if the borrowing institution breaches its agreement with the Fund.

F/m Compoundr Ultrashort Treasury ETF | Tax Risk

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● Tax Risk. Because the Fund is expected to invest in the Underlying Funds, distributions of short-term capital gains by an Underlying Fund will be recognized as ordinary income by the Fund and would not be offset by the Fund's capital loss carryforwards, if any. Capital loss carryforwards of an Underlying Fund, if any, will not be available to offset net capital gains of the Fund. Further, the Fund’s realized losses on sales of shares of an Underlying Fund may be indefinitely or permanently deferred as "wash sales" to the extent it reacquires shares of the same Underlying Fund within the 61-day period beginning 30 days prior to the disposition date.

F/m Compoundr Ultrashort Treasury ETF | Tracking Error Risk

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● Tracking Error Risk. The Fund may be subject to tracking error, which is the divergence of the Fund’s performance from that of the Underlying Index. Tracking error may occur because of differences between the securities and other instruments held in the Fund’s portfolio and those included in the Underlying Index, pricing differences, transaction costs incurred by the Fund, the Fund’s holding of uninvested cash, differences in timing of the accrual of or the valuation of distributions, the requirements to maintain RIC tax treatment, portfolio transactions carried out to minimize the distribution of capital gains to shareholders, acceptance of custom baskets, changes to the Underlying Index or the costs to the Fund of complying with various new or existing regulatory requirements. This risk may be heightened during times of increased market volatility or other unusual market conditions. Tracking error also may result because the Fund incurs fees and expenses, while the Underlying Index does not.

F/m Compoundr Ultrashort Treasury ETF | U.S. Government Obligations Risk

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● U.S. Government Obligations Risk. While U.S. Treasury obligations are backed by the “full faith and credit” of the U.S. Government, such securities are nonetheless subject to credit risk (i.e., the risk that the U.S. Government may be, or be perceived to be, unable or unwilling to honor its financial obligations, such as making payments). Securities issued or guaranteed by federal agencies or authorities and U.S. Government-sponsored instrumentalities or enterprises may or may not be backed by the full faith and credit of the U.S. Government.

F/m Compoundr Ultrashort Treasury ETF | U.S. Treasury and Agency Market Risk

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● U.S. Treasury and Agency Market Risk. The U.S. Treasury and agency market can be volatile, and the value of instruments correlated with these markets may fluctuate dramatically from day to day. U.S. Treasury and agency obligations may provide relatively lower returns than those of other securities. Similar to other debt instruments, U.S. Treasury and agency obligations are subject to debt instrument risk and interest rate risk. In addition, changes to the financial condition or credit rating of the U.S. Government may cause the value of U.S. Treasury and agency obligations to decline. U.S. Treasury obligations are backed by the “full faith and credit” of the U.S. government and are generally considered to have negligible credit risk. Securities issued or guaranteed by federal agencies or authorities and U.S. government-sponsored instrumentalities or enterprises may or may not be backed by the full faith and credit of the U.S. government.

F/m Compoundr Ultrashort Treasury ETF | Valuation Risk

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● Valuation Risk. The prices provided by the Fund’s pricing services or independent dealers or the fair value determinations made by the valuation committee of the Adviser may be different from the prices used by other funds or from the prices at which securities are actually bought and sold. The prices of certain securities provided by pricing services may be subject to frequent and significant change, and will vary depending on the information that is available.

F/m Compoundr Ultrashort Treasury ETF | Risk Lose Money [Member]

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As a result, you may lose money on your investment in the Fund, and there can be no assurance that the Fund will achieve its investment objective.

F/m Compoundr Intermediate Treasury ETF | Affiliated Fund Risk

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● Affiliated Fund Risk. Affiliated fund risk is the risk that the Adviser may select investments for the Fund based on its own financial interests or other business considerations rather than the Fund’s interests. The Adviser may be subject to potential conflicts of interest in selecting the Underlying Funds because affiliated Underlying Funds pay an advisory fee to the Adviser based on their assets, the fees paid to the Adviser by some affiliated Underlying Funds may be higher than other Underlying Funds or the Underlying Funds may be in need of assets to enhance their appeal to other investors, liquidity and trading and/or to enable them to carry out their investment strategies. However, the Adviser is a fiduciary to the Fund and is legally obligated to act in the Fund’s best interest when selecting Underlying Funds.

F/m Compoundr Intermediate Treasury ETF | Asset Class Risk

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● Asset Class Risk. The securities and other assets in the Underlying Index or in the Fund’s portfolio may underperform in comparison to financial markets generally, a particular financial market, another index, or other asset classes.

F/m Compoundr Intermediate Treasury ETF | Call Risk

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● Call Risk. During periods of falling interest rates, an issuer of a callable bond held by an Underlying Fund may “call” or repay the security before its stated maturity, and the Underlying Fund may have to reinvest the proceeds in securities with lower yields, which would result in a decline in the Fund’s performance, or in securities with greater risks or with other less favorable features

F/m Compoundr Intermediate Treasury ETF | Cash or Cash Equivalents Risk

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● Cash or Cash Equivalents Risk. At any time, the Fund may have significant investments in cash or cash equivalents. When a substantial portion of a portfolio is held in cash or cash equivalents, there is the risk that the value of the cash account, including interest, will not keep pace with inflation, thus reducing purchasing power over time. Additionally, in rising markets, holding cash or cash equivalents may adversely affect the Fund’s performance and the Fund may not achieve its investment objectives.

F/m Compoundr Intermediate Treasury ETF | Concentration Risk

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● Concentration Risk. The Fund may be susceptible to an increased risk of loss, including losses due to adverse events that affect the Fund’s investments more than the market as a whole, to the extent that the Fund’s investments are concentrated in a particular issue, issuer or issuers, country, market segment, or asset class.

F/m Compoundr Intermediate Treasury ETF | Credit Risk

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● Credit Risk. The value of your investment in the Fund may change in response to changes in the credit ratings of the Fund’s portfolio securities, including with respect to Underlying Funds. Generally, investment risk and price volatility increase as a security’s credit rating declines. The financial condition of an issuer of a fixed income security held by such Fund or an Underlying Fund may cause it to default or become unable to pay interest or principal due on the security.

F/m Compoundr Intermediate Treasury ETF | Cyber Security Risk

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● Cyber Security Risk. Cyber security risk is the risk of an unauthorized breach and access to the Fund’s assets, Fund or customer data (including private shareholder information), or proprietary information, or the risk of an incident occurring that causes the Fund, the Adviser, custodian, transfer agent, distributor and other service providers and financial intermediaries to suffer data breaches, data corruption or lose operational functionality or prevent the Fund’s investors from purchasing, redeeming or exchanging Shares or receiving distributions. While the Fund and the Adviser have established business continuity plans and risk management systems seeking to address system breaches or failures, there are inherent limitations in such plans and systems. Further, the Fund cannot control the cybersecurity plans and systems of the Fund’s service providers, market makers, or issuers of securities in which the Fund invests. The Fund and the Adviser have limited ability to prevent or mitigate cyber security incidents affecting third-party service providers, and such third-party service providers may have limited indemnification obligations to the Fund or the Adviser. Successful cyber-attacks or other cyber-failures or events affecting the Fund or its service providers may adversely impact and cause financial losses to the Fund or its shareholders. Issuers of securities in which the Fund invests are also subject to cyber security risks, and the value of these securities could decline if the issuers experience cyberattacks or other cyber-failures.

F/m Compoundr Intermediate Treasury ETF | Duration Risk

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● Duration Risk. Duration is a measure of the price sensitivity of a debt security or portfolio to interest rate changes. Duration risk is the risk that longer-duration debt securities will be more volatile and thus more likely to decline in price, and to a greater extent, in a rising interest rate environment than shorter-duration debt securities.

F/m Compoundr Intermediate Treasury ETF | ETF Risk

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● ETF Risk. The Fund is an ETF, and, as a result of an ETF’s structure, it is exposed to the following risks:

● Authorized Participants, Market Makers and Liquidity Providers Concentration Risk. Only an authorized participant (“AP”) may engage in creation or redemption transactions directly with the Fund. The Fund has a limited number of financial institutions that are institutional investors and may act as APs. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, there may be significantly diminished trading in Fund Shares, Fund Shares may trade at a material discount to net asset value (“NAV”), and Fund Shares may possibly face delisting: (i) if APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions. These events, among others, may lead to Fund Shares trading at a premium or discount to NAV. Thus, you may pay more (or less) than the NAV when you buy Shares of the Fund in the secondary market, and you may receive less (or more) than NAV when you sell those Shares in the secondary market. A diminished market for an ETF’s shares substantially increases the risk that a shareholder may pay considerably more or receive significantly less than the underlying value of the ETF shares bought or sold. In periods of market volatility, APs, market makers and/or liquidity providers may be less willing to transact in Fund Shares.

● Secondary Market Trading Risk. Although Shares are intended to be listed on a national securities exchange, The Nasdaq Stock Market LLC (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that an active or liquid trading market for them will develop or be maintained. In addition, trading in Shares on the Exchange may be halted. During periods of market stress, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount). This risk is heightened in times of market volatility or periods of steep market declines.

● Shares May Trade at Prices Other Than NAV Risk. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount). This risk is heightened in times of market volatility or periods of steep market declines. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Shares trade on a stock exchange at prices at, above, or below the Fund’s most recent NAV. The Fund’s NAV is calculated at the end of each business day and fluctuates with changes in the market value of the Fund’s holdings. The trading price of the Shares fluctuates continuously throughout trading hours on the exchange, based on both the relative market supply of, and demand for, the Shares and the underlying value of the Fund’s portfolio holdings. As a result, the trading prices of the Shares may deviate from the Fund’s NAV. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount). This risk is heightened in times of market volatility or periods of steep market declines. Any of these factors, among others, may lead to the Shares trading at a premium or discount to NAV.

F/m Compoundr Intermediate Treasury ETF | Fixed-Income Market Risk

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● Fixed-Income Market Risk. The market value of a fixed-income security may decline due to general market conditions that are not specifically related to a particular issuer, such as real or perceived adverse economic conditions, changes in the outlook for corporate earnings, changes in interest or currency rates or adverse investor sentiment generally. The fixed-income securities market can be susceptible to increases in volatility and decreases in liquidity. Liquidity can decline unpredictably in response to overall economic conditions or credit tightening. Increases in volatility and decreases in liquidity may be caused by a rise in interest rates (or the expectation of a rise in interest rates). An unexpected increase in Fund redemption requests, including requests from shareholders who may own a significant percentage of the Fund’s Shares, which may be triggered by market turmoil or an increase in interest rates, could cause the Fund to sell its holdings at a loss or at undesirable prices and adversely affect the Fund’s Share price and increase the Fund’s liquidity risk, expenses and/or taxable distributions.

F/m Compoundr Intermediate Treasury ETF | Fixed Income Securities Risk

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● Fixed Income Securities Risk. Fixed-income securities are subject to the risk of the issuer’s inability to meet principal and interest payments on its obligations (i.e., credit risk) and are subject to price volatility resulting from, among other things, interest rate sensitivity, market perception of the creditworthiness of the issuer, willingness of broker-dealers and other market participants to make markets in the applicable securities, and general market liquidity (i.e., market risk). Lower rated fixed-income securities have greater volatility because there is less certainty that principal and interest payments will be made as scheduled. There is a risk that a lack of liquidity or other adverse credit market conditions may hamper the Fund’s ability to sell the debt securities in which it invests.

F/m Compoundr Intermediate Treasury ETF | High Portfolio Turnover Risk

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● High Portfolio Turnover Risk. In seeking to track the Underlying Index, the Fund may incur relatively high portfolio turnover. The active and frequent trading of the Fund’s portfolio securities may result in increased transaction costs to the Fund, including brokerage commissions, dealer mark-ups and other transaction costs, which could reduce the Fund’s return.

F/m Compoundr Intermediate Treasury ETF | Income Risk

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● Income Risk. Under certain market conditions, the Fund may invest in Underlying Funds that are subject to income risk. The Fund’s income may decline when interest rates fall or if there are defaults in its portfolio. This decline can occur because the Fund may subsequently invest in lower-yielding securities as debt securities in its portfolio mature, are near maturity or are called, or the Fund otherwise needs to purchase additional debt securities.

F/m Compoundr Intermediate Treasury ETF | Index-Related Risk

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● Index-Related Risk. There is no guarantee that the Fund’s investment results will have a high degree of correlation to those of the Underlying Index or that the Fund will achieve its investment objective. Market disruptions and regulatory restrictions could have an adverse effect on the Fund’s ability to adjust its exposure to the required levels in order to track the Underlying Index. The Index Provider may rely on various sources of information to assess the criteria of components of the Underlying Index, including information that may be based on assumptions and estimates. Neither the Fund nor the Adviser can offer assurances that the Index Provider’s methodology or sources of information will provide an accurate assessment of included components. Errors in index data, index computations or the construction of the Underlying Index in accordance with its methodology may occur from time to time and may not be identified and corrected by the Index Provider for a period of time or at all, which may have an adverse impact on the Fund and its shareholders. Unusual market conditions or other unforeseen circumstances (such as natural disasters, political unrest or war) may impact the Index Provider or a third-party Provider and may cause the Index Provider to postpone a scheduled rebalance, which could cause the Underlying Index to vary from its normal or expected composition.

F/m Compoundr Intermediate Treasury ETF | Index Rebalance Risk

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● Index Rebalance Risk. Pursuant to the methodology that the Index Provider uses to calculate and maintain the Underlying Index, the Fund may own a significant portion of the Underlying Funds included in the Underlying Index. Any Underlying Fund may be removed from the Underlying Index if it does not comply with its eligibility requirements. As a result, the Fund may be forced to sell shares of Underlying Funds at inopportune times or for prices other than at current market values or may elect not to sell such shares on the day that they are removed from the Underlying Index, due to market conditions or otherwise. Due to these factors, the variation between the Fund’s annual return and the return of the Underlying Index may increase significantly. Apart from scheduled rebalances, the Index Provider may carry out additional ad hoc rebalances to the Underlying Index to, for example, correct an error in the selection of constituents. When the Fund in turn rebalances its portfolio, any transaction costs and market exposure arising from such portfolio rebalancing will be borne by the Fund and its shareholders. Unscheduled rebalances may also expose the Fund to additional tracking error risk. Therefore, errors and additional ad hoc rebalances carried out by the Index Provider and/or the Index Calculator may increase the Fund’s costs and market exposure.

F/m Compoundr Intermediate Treasury ETF | Inflation Risk

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● Inflation Risk. Under certain market conditions, the Fund may invest in an Underlying Fund that is subject to inflation risk. Inflation risk is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the present value of the Fund’s assets may decline.

F/m Compoundr Intermediate Treasury ETF | Interest Rate Risk

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● Interest Rate Risk. Interest rate risk is the risk of losses attributable to changes in interest rates. In general, if prevailing interest rates rise, the values of debt instruments tend to fall, and if interest rates fall, the values of debt instruments tend to rise. Changes in the value of a debt instrument usually will not affect the amount of income the Fund receives from it but will generally affect the value of your investment in the Fund. Changes in interest rates may also affect the liquidity of the Fund’s investments in debt instruments. In general, the longer the maturity or duration of a debt instrument, the greater its sensitivity to changes in interest rates. The Fund is subject to the risk that the income generated by its investments may not keep pace with inflation. Actions by governments and central banking authorities can result in increases or decreases in interest rates, which may negatively affect the value of debt instruments held by the Fund and have a negative impact on the Fund’s performance and NAV. Rising interest rates may prompt redemptions from the Fund, which may force the Fund to sell investments at a time when it is not advantageous to do so, which could result in losses. During periods of very low or negative interest rates, the Fund may be unable to maintain positive returns or pay dividends to Fund shareholders. Very low or negative interest rates may magnify interest rate risk. Changing interest rates, including rates that fall below zero, may have unpredictable effects on markets, result in heightened market volatility and detract from the Fund’s performance to the extent the Fund is exposed to such interest rates. Additionally, under certain market conditions in which interest rates are low and the market prices for portfolio securities have increased, the Fund may have a very low or even negative yield. A low or negative yield would cause the Fund to lose money in certain conditions and over certain time periods. An increase in interest rates will generally cause the value of securities held by the Fund to decline, may lead to heightened volatility in the fixed-income markets and may adversely affect the liquidity of certain fixed-income investments, including those held by the Fund. The historically low-interest rate environment in recent years heightens the risks associated with rising interest rates.

F/m Compoundr Intermediate Treasury ETF | Investment in Underlying Funds Risk

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● Investment in Underlying Funds Risk. The Fund’s investment in shares of Underlying Funds subjects it to the risks of owning the securities of the Underlying Fund, as well as the same structural risks faced by an investor purchasing shares of the Underlying Fund, including authorized participant concentration risk, market maker risk, premium/discount risk and trading issues risk. As a shareholder in another ETF, the Fund bears its proportionate share of the ETF’s expenses, subjecting Fund shareholders to duplicative expenses. Since the Fund invests in the Underlying Funds, the Fund’s investment performance and risks are likely to be directly related to those of the Underlying Funds. The Fund’s NAV will change with changes in the value of the Underlying Funds and other assets that the Fund holds. The shares of an Underlying Fund may trade at a premium or discount to the Underlying Fund’s NAV. Investors in the Fund will indirectly bear the expenses charged by the Underlying Funds, and an investment in the Fund may entail more expenses than a direct investment in the Underlying Funds.

F/m Compoundr Intermediate Treasury ETF | Issuer Risk

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● Issuer Risk. The performance of the Fund’s investment in Underlying Funds depends on the performance of individual securities or other assets to which the Underlying Fund has exposure. The value of securities or other assets may decline, or perform differently from the market as a whole, due to changes in the financial condition or credit rating of the issuer or counterparty.

F/m Compoundr Intermediate Treasury ETF | Liquidity Risk

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● Liquidity Risk. Certain securities held by an Underlying Fund may be difficult (or impossible) to sell at the time and at the price the Adviser would like. As a result, an Underlying Fund may have to hold these securities longer than it would like and may forego other investment opportunities. There is the possibility that an Underlying Fund may lose money or be prevented from realizing capital gains if it cannot sell a security at a particular time and price.

F/m Compoundr Intermediate Treasury ETF | Management Risk

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● Management Risk. As the Fund’s portfolio will not always replicate the Underlying Index fully, it is subject to the risk that the Adviser’s investment strategy may not produce the intended results. The Adviser’s primary use of a replication methodology, and the use of a representative sampling indexing strategy under certain circumstances, to manage the Fund’s portfolio may subject the Fund to an increased risk of tracking error, in that the securities selected in aggregate for the Fund’s portfolio may not have an investment profile similar to those of the Underlying Index.

F/m Compoundr Intermediate Treasury ETF | Market Risk

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● Market Risk. Economies and financial markets throughout the world are becoming increasingly interconnected, which increases the likelihood that events or conditions in one country or region will adversely impact markets or issuers in other countries or regions. The value of the Fund and/or the Underlying Fund's investments may be negatively affected by adverse changes in overall economic or market conditions, such as the level of economic activity and productivity, unemployment and labor force participation rates, inflation or deflation (and expectations for inflation or deflation), interest rates, demand and supply for particular products or resources including labor, and debt levels and credit ratings, among other factors. Such adverse conditions may contribute to an overall economic contraction across entire economies or markets, which may negatively impact the profitability of issuers operating in those economies or markets. The Fund and the Underlying Funds subject to the risk that geopolitical events will disrupt securities markets and adversely affect global economies and markets. The Fund and the Underlying Funds’ NAV and market price may fluctuate significantly in response to these and other factors including economic, political, or financial events, public health crises (such as epidemics or pandemics), or other disruptive events (whether real, expected or perceived) in the U.S. and global markets. The Fund could lose money over short periods due to short-term market movements and over longer periods during more prolonged market downturns. As a result, an investor could lose money over short or long periods of time.

F/m Compoundr Intermediate Treasury ETF | Market Price Risk

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● Market Price Risk. Fund Shares are listed for trading on an exchange and are bought and sold in the secondary market at market prices. The market prices of Shares will fluctuate, in some cases materially, in response to changes in the NAV and supply and demand for Shares. As a result, the trading prices of Shares may deviate significantly from the NAV during periods of market volatility. The Adviser cannot predict whether Shares will trade above, below or at their NAV. Given the fact that Shares can be created and redeemed in Creation Units (defined below), the Adviser believes that large discounts or premiums to the NAV of Shares should not be sustained in the long-term. If market makers exit the business or are unable to continue making markets in Fund Shares, Shares may trade at a discount to NAV like closed-end fund shares and may even face delisting (that is, investors would no longer be able to trade Shares in the secondary market). Further, while the creation/redemption feature is designed to make it likely that Shares normally will trade close to the value of the Fund’s holdings, disruptions to creations and redemptions, including disruptions at market makers, APs or market participants, or during periods of significant market volatility, may result in market prices that differ significantly from the value of the Fund’s holdings. Although market makers will generally take advantage of differences between the NAV and the market price of Fund Shares through arbitrage opportunities, there is no guarantee that they will do so. In addition, the securities held by the Fund may be traded in markets that close at a different time than the exchange on which the Fund’s Shares trade. 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, fixing or settlement times, bid-ask spreads and the resulting premium or discount to the Shares’ NAV is likely to widen. Further, secondary markets may be subject to irregular trading activity, wide bid-ask spreads and extended trade settlement periods, which could cause a material decline in the Fund’s NAV. The Fund’s investment results are measured based upon the daily NAV of the Fund. Investors purchasing and selling Shares in the secondary market may not experience investment results consistent with those experienced by those APs creating and redeeming Shares directly with the Fund.

F/m Compoundr Intermediate Treasury ETF | Market Trading Risk

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● Market Trading Risk. The Fund faces numerous market trading risks, including the potential lack of an active market for Fund Shares (including through a trading halt), losses from trading in secondary markets, periods of high volatility, and disruptions in the process of creating and redeeming Fund Shares. Any of these factors, among others, may lead to the Fund’s Shares trading in the secondary market at a premium or discount to NAV or to the intraday value of the Fund’s portfolio holdings. If you buy Fund Shares at a time when the market price is at a premium to NAV or sell Fund Shares at a time when the market price is at a discount to NAV, you may pay significantly more or receive significantly less than the underlying value of the Fund Shares.

F/m Compoundr Intermediate Treasury ETF | New Fund Risk

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● New Fund Risk. The Fund is a newly-organized management investment company with a limited operating history. In addition, there can be no assurance that the Fund will grow to, or maintain, an economically viable size, in which case the Board of Directors (the “Board”) of The RBB Fund, Inc. (the “Company”) may determine to liquidate the Fund.

F/m Compoundr Intermediate Treasury ETF | Non-Correlation Risk

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● Non-Correlation Risk. The Fund’s return may not match the return of the Underlying Index for a number of reasons. The Fund incurs operating expenses not applicable to the Underlying Index, and may incur costs in buying and selling securities, especially when rebalancing the Fund’s portfolio holdings to reflect changes in the composition of the Underlying Index. In addition, the Fund’s portfolio holdings may not exactly replicate the securities included in the Underlying Index or the ratios between the securities included in the Underlying Index. Additionally, in order to comply with its investment strategies and policies, the Fund portfolio may deviate from the composition of the Underlying Index. Accordingly, the Fund's return may underperform the return of the Underlying Index.

F/m Compoundr Intermediate Treasury ETF | Operational Risk

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● Operational Risk. The Fund is exposed to operational risks arising from a number of factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties, or other third parties, failed or inadequate processes and technology or systems failures. The Fund and the Adviser seek to reduce these operational risks through controls and procedures. However, these measures do not address every possible risk and may be inadequate to address significant operational risks.

F/m Compoundr Intermediate Treasury ETF | Passive Investment Risk

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● Passive Investment Risk. The Fund is not actively managed and may be affected by a general decline in market segments related to the Underlying Index. The Fund invests in securities included in, or representative of, the Underlying Index, regardless of their investment merits. Although the Fund is permitted to invest up to 100% of its assets in money market instruments for temporary defensive or liquidity purposes, it may only do so for up to ninety (90) days.

F/m Compoundr Intermediate Treasury ETF | Premium/Discount Risk

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● Premium/Discount Risk. The market price of the Fund’s Shares will generally fluctuate in accordance with changes in the Fund’s NAV as well as the relative supply of and demand for Shares on the Exchange. The Adviser cannot predict whether Shares will trade below, at, or above their NAV because the Shares trade on the Exchange at market prices and not at NAV. Price differences may be due, in large part, to the fact that supply and demand forces at work in the secondary trading market for Shares will be closely related, but not identical, to the same forces influencing the prices of the holdings of the Fund trading individually or in the aggregate at any point in time. However, given that Shares can only be purchased and redeemed in Creation Units, and only to and from broker-dealers and large institutional investors that have entered into participation agreements (unlike shares of closed-end funds, which frequently trade at appreciable discounts from, and sometimes at premiums to, their NAV), the Adviser believes that large discounts or premiums to the NAV of Shares should not be sustained. During stressed market conditions, the market for the Fund’s Shares may become less liquid in response to deteriorating liquidity in the market for the Fund’s underlying holdings, which could in turn lead to differences between the market price of the Fund’s Shares and their NAV and the bid/ask spread on the Fund’s Shares may widen.

F/m Compoundr Intermediate Treasury ETF | Pricing Risk

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● Pricing Risk. If market conditions make it difficult to value some investments, the Fund may value these investments using more subjective methods, such as fair value pricing. In such cases, the value determined for an investment could be different from the value realized upon such investment’s sale. As a result, you could pay more than the market value when buying Fund Shares or receive less than the market value when selling Fund Shares.

F/m Compoundr Intermediate Treasury ETF | Rating Agencies Risk

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● Rating Agencies Risk. Ratings are not an absolute standard of quality, but rather general indicators that reflect only the view of the originating rating agencies from which an explanation of the significance of such ratings may be obtained. There is no assurance that a particular rating will continue for any given period of time or that any such rating will not be revised downward or withdrawn entirely if, in the judgment of the agency establishing the rating, circumstances so warrant. A downward revision or withdrawal of such ratings, or either of them, may have an effect on the liquidity or market price of the securities in which an Underlying Fund invests.

F/m Compoundr Intermediate Treasury ETF | Reinvestment Risk

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● Reinvestment Risk. Reinvestment risk is the risk that the Fund’s portfolio will decline if and when the Fund reinvests the proceeds from the disposition of its portfolio securities at market interest rates that are below the portfolio’s current earnings rate. A decline in income could negatively affect the market price of the Shares.

F/m Compoundr Intermediate Treasury ETF | Reverse Repurchase Agreements Risk

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● Reverse Repurchase Agreements Risk. Reverse repurchase agreements are a form of secured borrowing and subject the Fund to the risks associated with leverage, including exposure to potential gains and losses in excess of the amount invested, resulting in an increase in the speculative character of the Fund's outstanding Shares. Reverse repurchase agreements involve the risk that the investment return earned by the Fund (from the investment of the proceeds) will be less than the interest expense of the transaction, that the market value of the securities sold by the Fund will decline below the price the Fund is obligated to pay to repurchase the securities, and that the other party may fail to return the securities in a timely manner or at all.

F/m Compoundr Intermediate Treasury ETF | Risk of Investing in the U.S.

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● Risk of Investing in the U.S. Certain changes in the U.S. economy, such as when the U.S. economy weakens or when its financial markets decline, may have an adverse effect on the securities to which the Fund has exposure.

F/m Compoundr Intermediate Treasury ETF | Sector Risk

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● Sector Risk. To the extent the Fund invests more heavily in particular sectors of the economy, its performance will be especially sensitive to developments that significantly affect those sectors.

F/m Compoundr Intermediate Treasury ETF | Securities Lending Risk

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● Securities Lending Risk. The Fund may engage in securities lending (i.e., lend portfolio securities to institutions, such as certain broker-dealers). Securities lending involves the risk that the Fund may lose money because the borrower of the loaned securities fails to return the securities in a timely manner or at all. The Fund could also lose money in the event of a decline in the value of collateral provided for loaned securities or a decline in the value of any investment made with cash collateral. These events could also trigger adverse tax consequences for the Fund. The Fund could also experience a loss or delay in the recovery of its securities if the borrowing institution breaches its agreement with the Fund.

F/m Compoundr Intermediate Treasury ETF | Tax Risk

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● Tax Risk. Because the Fund is expected to invest in the Underlying Funds, distributions of short-term capital gains by an Underlying Fund will be recognized as ordinary income by the Fund and would not be offset by the Fund's capital loss carryforwards, if any. Capital loss carryforwards of an Underlying Fund, if any, will not be available to offset net capital gains of the Fund. Further, the Fund’s realized losses on sales of shares of an Underlying Fund may be indefinitely or permanently deferred as "wash sales" to the extent it reacquires shares of the same Underlying Fund within the 61-day period beginning 30 days prior to the disposition date.

F/m Compoundr Intermediate Treasury ETF | Tracking Error Risk

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● Tracking Error Risk. The Fund may be subject to tracking error, which is the divergence of the Fund’s performance from that of the Underlying Index. Tracking error may occur because of differences between the securities and other instruments held in the Fund’s portfolio and those included in the Underlying Index, pricing differences, transaction costs incurred by the Fund, the Fund’s holding of uninvested cash, differences in timing of the accrual of or the valuation of distributions, the requirements to maintain RIC tax treatment, portfolio transactions carried out to minimize the distribution of capital gains to shareholders, acceptance of custom baskets, changes to the Underlying Index or the costs to the Fund of complying with various new or existing regulatory requirements. This risk may be heightened during times of increased market volatility or other unusual market conditions. Tracking error also may result because the Fund incurs fees and expenses, while the Underlying Index does not.

F/m Compoundr Intermediate Treasury ETF | U.S. Government Obligations Risk

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● U.S. Government Obligations Risk. While U.S. Treasury obligations are backed by the “full faith and credit” of the U.S. Government, such securities are nonetheless subject to credit risk (i.e., the risk that the U.S. Government may be, or be perceived to be, unable or unwilling to honor its financial obligations, such as making payments). Securities issued or guaranteed by federal agencies or authorities and U.S. Government-sponsored instrumentalities or enterprises may or may not be backed by the full faith and credit of the U.S. Government.

F/m Compoundr Intermediate Treasury ETF | U.S. Treasury and Agency Market Risk

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● U.S. Treasury and Agency Market Risk. The U.S. Treasury and agency market can be volatile, and the value of instruments correlated with these markets may fluctuate dramatically from day to day. U.S. Treasury and agency obligations may provide relatively lower returns than those of other securities. Similar to other debt instruments, U.S. Treasury and agency obligations are subject to debt instrument risk and interest rate risk. In addition, changes to the financial condition or credit rating of the U.S. Government may cause the value of U.S. Treasury and agency obligations to decline. U.S. Treasury obligations are backed by the “full faith and credit” of the U.S. government and are generally considered to have negligible credit risk. Securities issued or guaranteed by federal agencies or authorities and U.S. government-sponsored instrumentalities or enterprises may or may not be backed by the full faith and credit of the U.S. government.

F/m Compoundr Intermediate Treasury ETF | Valuation Risk

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● Valuation Risk. The prices provided by the Fund’s pricing services or independent dealers or the fair value determinations made by the valuation committee of the Adviser may be different from the prices used by other funds or from the prices at which securities are actually bought and sold. The prices of certain securities provided by pricing services may be subject to frequent and significant change, and will vary depending on the information that is available.

F/m Compoundr Intermediate Treasury ETF | Risk Lose Money [Member]

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As a result, you may lose money on your investment in the Fund, and there can be no assurance that the Fund will achieve its investment objective.

F/m Compoundr Long Treasury ETF | Affiliated Fund Risk

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● Affiliated Fund Risk. Affiliated fund risk is the risk that the Adviser may select investments for the Fund based on its own financial interests or other business considerations rather than the Fund’s interests. The Adviser may be subject to potential conflicts of interest in selecting the Underlying Funds because affiliated Underlying Funds pay an advisory fee to the Adviser based on their assets, the fees paid to the Adviser by some affiliated Underlying Funds may be higher than other Underlying Funds or the Underlying Funds may be in need of assets to enhance their appeal to other investors, liquidity and trading and/or to enable them to carry out their investment strategies. However, the Adviser is a fiduciary to the Fund and is legally obligated to act in the Fund’s best interest when selecting Underlying Funds.

F/m Compoundr Long Treasury ETF | Asset Class Risk

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● Asset Class Risk. The securities and other assets in the Underlying Index or in the Fund’s portfolio may underperform in comparison to financial markets generally, a particular financial market, another index, or other asset classes.

F/m Compoundr Long Treasury ETF | Call Risk

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● Call Risk. During periods of falling interest rates, an issuer of a callable bond held by an Underlying Fund may “call” or repay the security before its stated maturity, and the Underlying Fund may have to reinvest the proceeds in securities with lower yields, which would result in a decline in the Fund’s performance, or in securities with greater risks or with other less favorable features

F/m Compoundr Long Treasury ETF | Cash or Cash Equivalents Risk

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● Cash or Cash Equivalents Risk. At any time, the Fund may have significant investments in cash or cash equivalents. When a substantial portion of a portfolio is held in cash or cash equivalents, there is the risk that the value of the cash account, including interest, will not keep pace with inflation, thus reducing purchasing power over time. Additionally, in rising markets, holding cash or cash equivalents may adversely affect the Fund’s performance and the Fund may not achieve its investment objectives.

F/m Compoundr Long Treasury ETF | Concentration Risk

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● Concentration Risk. The Fund may be susceptible to an increased risk of loss, including losses due to adverse events that affect the Fund’s investments more than the market as a whole, to the extent that the Fund’s investments are concentrated in a particular issue, issuer or issuers, country, market segment, or asset class.

F/m Compoundr Long Treasury ETF | Credit Risk

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● Credit Risk. The value of your investment in the Fund may change in response to changes in the credit ratings of the Fund’s portfolio securities, including with respect to Underlying Funds. Generally, investment risk and price volatility increase as a security’s credit rating declines. The financial condition of an issuer of a fixed income security held by such Fund or an Underlying Fund may cause it to default or become unable to pay interest or principal due on the security.

F/m Compoundr Long Treasury ETF | Cyber Security Risk

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● Cyber Security Risk. Cyber security risk is the risk of an unauthorized breach and access to the Fund’s assets, Fund or customer data (including private shareholder information), or proprietary information, or the risk of an incident occurring that causes the Fund, the Adviser, custodian, transfer agent, distributor and other service providers and financial intermediaries to suffer data breaches, data corruption or lose operational functionality or prevent the Fund’s investors from purchasing, redeeming or exchanging Shares or receiving distributions. While the Fund and the Adviser have established business continuity plans and risk management systems seeking to address system breaches or failures, there are inherent limitations in such plans and systems. Further, the Fund cannot control the cybersecurity plans and systems of the Fund’s service providers, market makers, or issuers of securities in which the Fund invests. The Fund and the Adviser have limited ability to prevent or mitigate cyber security incidents affecting third-party service providers, and such third-party service providers may have limited indemnification obligations to the Fund or the Adviser. Successful cyber-attacks or other cyber-failures or events affecting the Fund or its service providers may adversely impact and cause financial losses to the Fund or its shareholders. Issuers of securities in which the Fund invests are also subject to cyber security risks, and the value of these securities could decline if the issuers experience cyberattacks or other cyber-failures.

F/m Compoundr Long Treasury ETF | Duration Risk

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● Duration Risk. Duration is a measure of the price sensitivity of a debt security or portfolio to interest rate changes. Duration risk is the risk that longer-duration debt securities will be more volatile and thus more likely to decline in price, and to a greater extent, in a rising interest rate environment than shorter-duration debt securities.

F/m Compoundr Long Treasury ETF | ETF Risk

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● ETF Risk. The Fund is an ETF, and, as a result of an ETF’s structure, it is exposed to the following risks:

● Authorized Participants, Market Makers and Liquidity Providers Concentration Risk. Only an authorized participant (“AP”) may engage in creation or redemption transactions directly with the Fund. The Fund has a limited number of financial institutions that are institutional investors and may act as APs. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, there may be significantly diminished trading in Fund Shares, Fund Shares may trade at a material discount to net asset value (“NAV”), and Fund Shares may possibly face delisting: (i) if APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions. These events, among others, may lead to Fund Shares trading at a premium or discount to NAV. Thus, you may pay more (or less) than the NAV when you buy Shares of the Fund in the secondary market, and you may receive less (or more) than NAV when you sell those Shares in the secondary market. A diminished market for an ETF’s shares substantially increases the risk that a shareholder may pay considerably more or receive significantly less than the underlying value of the ETF shares bought or sold. In periods of market volatility, APs, market makers and/or liquidity providers may be less willing to transact in Fund Shares.

● Secondary Market Trading Risk. Although Shares are intended to be listed on a national securities exchange, The Nasdaq Stock Market LLC (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that an active or liquid trading market for them will develop or be maintained. In addition, trading in Shares on the Exchange may be halted. During periods of market stress, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount). This risk is heightened in times of market volatility or periods of steep market declines.

● Shares May Trade at Prices Other Than NAV Risk. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount). This risk is heightened in times of market volatility or periods of steep market declines. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Shares trade on a stock exchange at prices at, above, or below the Fund’s most recent NAV. The Fund’s NAV is calculated at the end of each business day and fluctuates with changes in the market value of the Fund’s holdings. The trading price of the Shares fluctuates continuously throughout trading hours on the exchange, based on both the relative market supply of, and demand for, the Shares and the underlying value of the Fund’s portfolio holdings. As a result, the trading prices of the Shares may deviate from the Fund’s NAV. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount). This risk is heightened in times of market volatility or periods of steep market declines. Any of these factors, among others, may lead to the Shares trading at a premium or discount to NAV.

F/m Compoundr Long Treasury ETF | Fixed-Income Market Risk

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● Fixed-Income Market Risk. The market value of a fixed-income security may decline due to general market conditions that are not specifically related to a particular issuer, such as real or perceived adverse economic conditions, changes in the outlook for corporate earnings, changes in interest or currency rates or adverse investor sentiment generally. The fixed-income securities market can be susceptible to increases in volatility and decreases in liquidity. Liquidity can decline unpredictably in response to overall economic conditions or credit tightening. Increases in volatility and decreases in liquidity may be caused by a rise in interest rates (or the expectation of a rise in interest rates). An unexpected increase in Fund redemption requests, including requests from shareholders who may own a significant percentage of the Fund’s Shares, which may be triggered by market turmoil or an increase in interest rates, could cause the Fund to sell its holdings at a loss or at undesirable prices and adversely affect the Fund’s Share price and increase the Fund’s liquidity risk, expenses and/or taxable distributions.

F/m Compoundr Long Treasury ETF | Fixed Income Securities Risk

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● Fixed Income Securities Risk. Fixed-income securities are subject to the risk of the issuer’s inability to meet principal and interest payments on its obligations (i.e., credit risk) and are subject to price volatility resulting from, among other things, interest rate sensitivity, market perception of the creditworthiness of the issuer, willingness of broker-dealers and other market participants to make markets in the applicable securities, and general market liquidity (i.e., market risk). Lower rated fixed-income securities have greater volatility because there is less certainty that principal and interest payments will be made as scheduled. There is a risk that a lack of liquidity or other adverse credit market conditions may hamper the Fund’s ability to sell the debt securities in which it invests.

F/m Compoundr Long Treasury ETF | High Portfolio Turnover Risk

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● High Portfolio Turnover Risk. In seeking to track the Underlying Index, the Fund may incur relatively high portfolio turnover. The active and frequent trading of the Fund’s portfolio securities may result in increased transaction costs to the Fund, including brokerage commissions, dealer mark-ups and other transaction costs, which could reduce the Fund’s return.

F/m Compoundr Long Treasury ETF | Income Risk

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● Income Risk. Under certain market conditions, the Fund may invest in Underlying Funds that are subject to income risk. The Fund’s income may decline when interest rates fall or if there are defaults in its portfolio. This decline can occur because the Fund may subsequently invest in lower-yielding securities as debt securities in its portfolio mature, are near maturity or are called, or the Fund otherwise needs to purchase additional debt securities.

F/m Compoundr Long Treasury ETF | Index-Related Risk

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● Index-Related Risk. There is no guarantee that the Fund’s investment results will have a high degree of correlation to those of the Underlying Index or that the Fund will achieve its investment objective. Market disruptions and regulatory restrictions could have an adverse effect on the Fund’s ability to adjust its exposure to the required levels in order to track the Underlying Index. The Index Provider may rely on various sources of information to assess the criteria of components of the Underlying Index, including information that may be based on assumptions and estimates. Neither the Fund nor the Adviser can offer assurances that the Index Provider’s methodology or sources of information will provide an accurate assessment of included components. Errors in index data, index computations or the construction of the Underlying Index in accordance with its methodology may occur from time to time and may not be identified and corrected by the Index Provider for a period of time or at all, which may have an adverse impact on the Fund and its shareholders. Unusual market conditions or other unforeseen circumstances (such as natural disasters, political unrest or war) may impact the Index Provider or a third-party Provider and may cause the Index Provider to postpone a scheduled rebalance, which could cause the Underlying Index to vary from its normal or expected composition.

F/m Compoundr Long Treasury ETF | Index Rebalance Risk

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● Index Rebalance Risk. Pursuant to the methodology that the Index Provider uses to calculate and maintain the Underlying Index, the Fund may own a significant portion of the Underlying Funds included in the Underlying Index. Any Underlying Fund may be removed from the Underlying Index if it does not comply with its eligibility requirements. As a result, the Fund may be forced to sell shares of Underlying Funds at inopportune times or for prices other than at current market values or may elect not to sell such shares on the day that they are removed from the Underlying Index, due to market conditions or otherwise. Due to these factors, the variation between the Fund’s annual return and the return of the Underlying Index may increase significantly. Apart from scheduled rebalances, the Index Provider may carry out additional ad hoc rebalances to the Underlying Index to, for example, correct an error in the selection of constituents. When the Fund in turn rebalances its portfolio, any transaction costs and market exposure arising from such portfolio rebalancing will be borne by the Fund and its shareholders. Unscheduled rebalances may also expose the Fund to additional tracking error risk. Therefore, errors and additional ad hoc rebalances carried out by the Index Provider and/or the Index Calculator may increase the Fund’s costs and market exposure.

F/m Compoundr Long Treasury ETF | Inflation Risk

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● Inflation Risk. Under certain market conditions, the Fund may invest in an Underlying Fund that is subject to inflation risk. Inflation risk is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the present value of the Fund’s assets may decline.

F/m Compoundr Long Treasury ETF | Interest Rate Risk

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● Interest Rate Risk. Interest rate risk is the risk of losses attributable to changes in interest rates. In general, if prevailing interest rates rise, the values of debt instruments tend to fall, and if interest rates fall, the values of debt instruments tend to rise. Changes in the value of a debt instrument usually will not affect the amount of income the Fund receives from it but will generally affect the value of your investment in the Fund. Changes in interest rates may also affect the liquidity of the Fund’s investments in debt instruments. In general, the longer the maturity or duration of a debt instrument, the greater its sensitivity to changes in interest rates. The Fund is subject to the risk that the income generated by its investments may not keep pace with inflation. Actions by governments and central banking authorities can result in increases or decreases in interest rates, which may negatively affect the value of debt instruments held by the Fund and have a negative impact on the Fund’s performance and NAV. Rising interest rates may prompt redemptions from the Fund, which may force the Fund to sell investments at a time when it is not advantageous to do so, which could result in losses. During periods of very low or negative interest rates, the Fund may be unable to maintain positive returns or pay dividends to Fund shareholders. Very low or negative interest rates may magnify interest rate risk. Changing interest rates, including rates that fall below zero, may have unpredictable effects on markets, result in heightened market volatility and detract from the Fund’s performance to the extent the Fund is exposed to such interest rates. Additionally, under certain market conditions in which interest rates are low and the market prices for portfolio securities have increased, the Fund may have a very low or even negative yield. A low or negative yield would cause the Fund to lose money in certain conditions and over certain time periods. An increase in interest rates will generally cause the value of securities held by the Fund to decline, may lead to heightened volatility in the fixed-income markets and may adversely affect the liquidity of certain fixed-income investments, including those held by the Fund. The historically low-interest rate environment in recent years heightens the risks associated with rising interest rates.

F/m Compoundr Long Treasury ETF | Investment in Underlying Funds Risk

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● Investment in Underlying Funds Risk. The Fund’s investment in shares of Underlying Funds subjects it to the risks of owning the securities of the Underlying Fund, as well as the same structural risks faced by an investor purchasing shares of the Underlying Fund, including authorized participant concentration risk, market maker risk, premium/discount risk and trading issues risk. As a shareholder in another ETF, the Fund bears its proportionate share of the ETF’s expenses, subjecting Fund shareholders to duplicative expenses. Since the Fund invests in the Underlying Funds, the Fund’s investment performance and risks are likely to be directly related to those of the Underlying Funds. The Fund’s NAV will change with changes in the value of the Underlying Funds and other assets that the Fund holds. The shares of an Underlying Fund may trade at a premium or discount to the Underlying Fund’s NAV. Investors in the Fund will indirectly bear the expenses charged by the Underlying Funds, and an investment in the Fund may entail more expenses than a direct investment in the Underlying Funds.

F/m Compoundr Long Treasury ETF | Issuer Risk

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● Issuer Risk. The performance of the Fund’s investment in Underlying Funds depends on the performance of individual securities or other assets to which the Underlying Fund has exposure. The value of securities or other assets may decline, or perform differently from the market as a whole, due to changes in the financial condition or credit rating of the issuer or counterparty.

F/m Compoundr Long Treasury ETF | Liquidity Risk

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● Liquidity Risk. Certain securities held by an Underlying Fund may be difficult (or impossible) to sell at the time and at the price the Adviser would like. As a result, an Underlying Fund may have to hold these securities longer than it would like and may forego other investment opportunities. There is the possibility that an Underlying Fund may lose money or be prevented from realizing capital gains if it cannot sell a security at a particular time and price.

F/m Compoundr Long Treasury ETF | Management Risk

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● Management Risk. As the Fund’s portfolio will not always replicate the Underlying Index fully, it is subject to the risk that the Adviser’s investment strategy may not produce the intended results. The Adviser’s primary use of a replication methodology, and the use of a representative sampling indexing strategy under certain circumstances, to manage the Fund’s portfolio may subject the Fund to an increased risk of tracking error, in that the securities selected in aggregate for the Fund’s portfolio may not have an investment profile similar to those of the Underlying Index.

F/m Compoundr Long Treasury ETF | Market Risk

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● Market Risk. Economies and financial markets throughout the world are becoming increasingly interconnected, which increases the likelihood that events or conditions in one country or region will adversely impact markets or issuers in other countries or regions. The value of the Fund and/or the Underlying Fund's investments may be negatively affected by adverse changes in overall economic or market conditions, such as the level of economic activity and productivity, unemployment and labor force participation rates, inflation or deflation (and expectations for inflation or deflation), interest rates, demand and supply for particular products or resources including labor, and debt levels and credit ratings, among other factors. Such adverse conditions may contribute to an overall economic contraction across entire economies or markets, which may negatively impact the profitability of issuers operating in those economies or markets. The Fund and the Underlying Funds subject to the risk that geopolitical events will disrupt securities markets and adversely affect global economies and markets. The Fund and the Underlying Funds’ NAV and market price may fluctuate significantly in response to these and other factors including economic, political, or financial events, public health crises (such as epidemics or pandemics), or other disruptive events (whether real, expected or perceived) in the U.S. and global markets. The Fund could lose money over short periods due to short-term market movements and over longer periods during more prolonged market downturns. As a result, an investor could lose money over short or long periods of time.

F/m Compoundr Long Treasury ETF | Market Price Risk

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● Market Price Risk. Fund Shares are listed for trading on an exchange and are bought and sold in the secondary market at market prices. The market prices of Shares will fluctuate, in some cases materially, in response to changes in the NAV and supply and demand for Shares. As a result, the trading prices of Shares may deviate significantly from the NAV during periods of market volatility. The Adviser cannot predict whether Shares will trade above, below or at their NAV. Given the fact that Shares can be created and redeemed in Creation Units (defined below), the Adviser believes that large discounts or premiums to the NAV of Shares should not be sustained in the long-term. If market makers exit the business or are unable to continue making markets in Fund Shares, Shares may trade at a discount to NAV like closed-end fund shares and may even face delisting (that is, investors would no longer be able to trade Shares in the secondary market). Further, while the creation/redemption feature is designed to make it likely that Shares normally will trade close to the value of the Fund’s holdings, disruptions to creations and redemptions, including disruptions at market makers, APs or market participants, or during periods of significant market volatility, may result in market prices that differ significantly from the value of the Fund’s holdings. Although market makers will generally take advantage of differences between the NAV and the market price of Fund Shares through arbitrage opportunities, there is no guarantee that they will do so. In addition, the securities held by the Fund may be traded in markets that close at a different time than the exchange on which the Fund’s Shares trade. 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, fixing or settlement times, bid-ask spreads and the resulting premium or discount to the Shares’ NAV is likely to widen. Further, secondary markets may be subject to irregular trading activity, wide bid-ask spreads and extended trade settlement periods, which could cause a material decline in the Fund’s NAV. The Fund’s investment results are measured based upon the daily NAV of the Fund. Investors purchasing and selling Shares in the secondary market may not experience investment results consistent with those experienced by those APs creating and redeeming Shares directly with the Fund.

F/m Compoundr Long Treasury ETF | Market Trading Risk

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● Market Trading Risk. The Fund faces numerous market trading risks, including the potential lack of an active market for Fund Shares (including through a trading halt), losses from trading in secondary markets, periods of high volatility, and disruptions in the process of creating and redeeming Fund Shares. Any of these factors, among others, may lead to the Fund’s Shares trading in the secondary market at a premium or discount to NAV or to the intraday value of the Fund’s portfolio holdings. If you buy Fund Shares at a time when the market price is at a premium to NAV or sell Fund Shares at a time when the market price is at a discount to NAV, you may pay significantly more or receive significantly less than the underlying value of the Fund Shares.

F/m Compoundr Long Treasury ETF | New Fund Risk

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● New Fund Risk. The Fund is a newly-organized management investment company with a limited operating history. In addition, there can be no assurance that the Fund will grow to, or maintain, an economically viable size, in which case the Board of Directors (the “Board”) of The RBB Fund, Inc. (the “Company”) may determine to liquidate the Fund.

F/m Compoundr Long Treasury ETF | Non-Correlation Risk

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● Non-Correlation Risk. The Fund’s return may not match the return of the Underlying Index for a number of reasons. The Fund incurs operating expenses not applicable to the Underlying Index, and may incur costs in buying and selling securities, especially when rebalancing the Fund’s portfolio holdings to reflect changes in the composition of the Underlying Index. In addition, the Fund’s portfolio holdings may not exactly replicate the securities included in the Underlying Index or the ratios between the securities included in the Underlying Index. Additionally, in order to comply with its investment strategies and policies, the Fund portfolio may deviate from the composition of the Underlying Index. Accordingly, the Fund's return may underperform the return of the Underlying Index.

F/m Compoundr Long Treasury ETF | Operational Risk

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● Operational Risk. The Fund is exposed to operational risks arising from a number of factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties, or other third parties, failed or inadequate processes and technology or systems failures. The Fund and the Adviser seek to reduce these operational risks through controls and procedures. However, these measures do not address every possible risk and may be inadequate to address significant operational risks.

F/m Compoundr Long Treasury ETF | Passive Investment Risk

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● Passive Investment Risk. The Fund is not actively managed and may be affected by a general decline in market segments related to the Underlying Index. The Fund invests in securities included in, or representative of, the Underlying Index, regardless of their investment merits. Although the Fund is permitted to invest up to 100% of its assets in money market instruments for temporary defensive or liquidity purposes, it may only do so for up to ninety (90) days.

F/m Compoundr Long Treasury ETF | Premium/Discount Risk

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● Premium/Discount Risk. The market price of the Fund’s Shares will generally fluctuate in accordance with changes in the Fund’s NAV as well as the relative supply of and demand for Shares on the Exchange. The Adviser cannot predict whether Shares will trade below, at, or above their NAV because the Shares trade on the Exchange at market prices and not at NAV. Price differences may be due, in large part, to the fact that supply and demand forces at work in the secondary trading market for Shares will be closely related, but not identical, to the same forces influencing the prices of the holdings of the Fund trading individually or in the aggregate at any point in time. However, given that Shares can only be purchased and redeemed in Creation Units, and only to and from broker-dealers and large institutional investors that have entered into participation agreements (unlike shares of closed-end funds, which frequently trade at appreciable discounts from, and sometimes at premiums to, their NAV), the Adviser believes that large discounts or premiums to the NAV of Shares should not be sustained. During stressed market conditions, the market for the Fund’s Shares may become less liquid in response to deteriorating liquidity in the market for the Fund’s underlying holdings, which could in turn lead to differences between the market price of the Fund’s Shares and their NAV and the bid/ask spread on the Fund’s Shares may widen.

F/m Compoundr Long Treasury ETF | Pricing Risk

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● Pricing Risk. If market conditions make it difficult to value some investments, the Fund may value these investments using more subjective methods, such as fair value pricing. In such cases, the value determined for an investment could be different from the value realized upon such investment’s sale. As a result, you could pay more than the market value when buying Fund Shares or receive less than the market value when selling Fund Shares.

F/m Compoundr Long Treasury ETF | Rating Agencies Risk

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● Rating Agencies Risk. Ratings are not an absolute standard of quality, but rather general indicators that reflect only the view of the originating rating agencies from which an explanation of the significance of such ratings may be obtained. There is no assurance that a particular rating will continue for any given period of time or that any such rating will not be revised downward or withdrawn entirely if, in the judgment of the agency establishing the rating, circumstances so warrant. A downward revision or withdrawal of such ratings, or either of them, may have an effect on the liquidity or market price of the securities in which an Underlying Fund invests.

F/m Compoundr Long Treasury ETF | Reinvestment Risk

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● Reinvestment Risk. Reinvestment risk is the risk that the Fund’s portfolio will decline if and when the Fund reinvests the proceeds from the disposition of its portfolio securities at market interest rates that are below the portfolio’s current earnings rate. A decline in income could negatively affect the market price of the Shares.

F/m Compoundr Long Treasury ETF | Reverse Repurchase Agreements Risk

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● Reverse Repurchase Agreements Risk. Reverse repurchase agreements are a form of secured borrowing and subject the Fund to the risks associated with leverage, including exposure to potential gains and losses in excess of the amount invested, resulting in an increase in the speculative character of the Fund's outstanding Shares. Reverse repurchase agreements involve the risk that the investment return earned by the Fund (from the investment of the proceeds) will be less than the interest expense of the transaction, that the market value of the securities sold by the Fund will decline below the price the Fund is obligated to pay to repurchase the securities, and that the other party may fail to return the securities in a timely manner or at all.

F/m Compoundr Long Treasury ETF | Risk of Investing in the U.S.

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● Risk of Investing in the U.S. Certain changes in the U.S. economy, such as when the U.S. economy weakens or when its financial markets decline, may have an adverse effect on the securities to which the Fund has exposure.

F/m Compoundr Long Treasury ETF | Sector Risk

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● Sector Risk. To the extent the Fund invests more heavily in particular sectors of the economy, its performance will be especially sensitive to developments that significantly affect those sectors.

F/m Compoundr Long Treasury ETF | Securities Lending Risk

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● Securities Lending Risk. The Fund may engage in securities lending (i.e., lend portfolio securities to institutions, such as certain broker-dealers). Securities lending involves the risk that the Fund may lose money because the borrower of the loaned securities fails to return the securities in a timely manner or at all. The Fund could also lose money in the event of a decline in the value of collateral provided for loaned securities or a decline in the value of any investment made with cash collateral. These events could also trigger adverse tax consequences for the Fund. The Fund could also experience a loss or delay in the recovery of its securities if the borrowing institution breaches its agreement with the Fund.

F/m Compoundr Long Treasury ETF | Tax Risk

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● Tax Risk. Because the Fund is expected to invest in the Underlying Funds, distributions of short-term capital gains by an Underlying Fund will be recognized as ordinary income by the Fund and would not be offset by the Fund's capital loss carryforwards, if any. Capital loss carryforwards of an Underlying Fund, if any, will not be available to offset net capital gains of the Fund. Further, the Fund’s realized losses on sales of shares of an Underlying Fund may be indefinitely or permanently deferred as "wash sales" to the extent it reacquires shares of the same Underlying Fund within the 61-day period beginning 30 days prior to the disposition date.

F/m Compoundr Long Treasury ETF | Tracking Error Risk

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● Tracking Error Risk. The Fund may be subject to tracking error, which is the divergence of the Fund’s performance from that of the Underlying Index. Tracking error may occur because of differences between the securities and other instruments held in the Fund’s portfolio and those included in the Underlying Index, pricing differences, transaction costs incurred by the Fund, the Fund’s holding of uninvested cash, differences in timing of the accrual of or the valuation of distributions, the requirements to maintain RIC tax treatment, portfolio transactions carried out to minimize the distribution of capital gains to shareholders, acceptance of custom baskets, changes to the Underlying Index or the costs to the Fund of complying with various new or existing regulatory requirements. This risk may be heightened during times of increased market volatility or other unusual market conditions. Tracking error also may result because the Fund incurs fees and expenses, while the Underlying Index does not.

F/m Compoundr Long Treasury ETF | U.S. Government Obligations Risk

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● U.S. Government Obligations Risk. While U.S. Treasury obligations are backed by the “full faith and credit” of the U.S. Government, such securities are nonetheless subject to credit risk (i.e., the risk that the U.S. Government may be, or be perceived to be, unable or unwilling to honor its financial obligations, such as making payments). Securities issued or guaranteed by federal agencies or authorities and U.S. Government-sponsored instrumentalities or enterprises may or may not be backed by the full faith and credit of the U.S. Government.

F/m Compoundr Long Treasury ETF | U.S. Treasury and Agency Market Risk

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● U.S. Treasury and Agency Market Risk. The U.S. Treasury and agency market can be volatile, and the value of instruments correlated with these markets may fluctuate dramatically from day to day. U.S. Treasury and agency obligations may provide relatively lower returns than those of other securities. Similar to other debt instruments, U.S. Treasury and agency obligations are subject to debt instrument risk and interest rate risk. In addition, changes to the financial condition or credit rating of the U.S. Government may cause the value of U.S. Treasury and agency obligations to decline. U.S. Treasury obligations are backed by the “full faith and credit” of the U.S. government and are generally considered to have negligible credit risk. Securities issued or guaranteed by federal agencies or authorities and U.S. government-sponsored instrumentalities or enterprises may or may not be backed by the full faith and credit of the U.S. government.

F/m Compoundr Long Treasury ETF | Valuation Risk

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● Valuation Risk. The prices provided by the Fund’s pricing services or independent dealers or the fair value determinations made by the valuation committee of the Adviser may be different from the prices used by other funds or from the prices at which securities are actually bought and sold. The prices of certain securities provided by pricing services may be subject to frequent and significant change, and will vary depending on the information that is available.

F/m Compoundr Long Treasury ETF | Risk Lose Money [Member]

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As a result, you may lose money on your investment in the Fund, and there can be no assurance that the Fund will achieve its investment objective.