Strategy. To pursue its investment objective, the Fund invests, under normal market circumstances, at least 80% of its net assets (plus any borrowings for investment purposes) in component securities of the Underlying Index. The Underlying Index is sponsored and maintained by Abacus FCF Indexes LLC (the Index Provider), an affiliate of the Adviser. The Underlying Index is a rules-based equity index designed to track the performance of the small-cap segment of U.S. publicly traded companies with strong free cash flow return on invested capital (FCF-ROIC), as identified by the Index Provider through extensive historical research. The Fund intends to maintain a portfolio of securities that generally replicates the holdings of the Underlying Index. As of the date of this Prospectus, the … Show more… To pursue its investment objective, the Fund invests, under normal market circumstances, at least 80% of its net assets (plus any borrowings for investment purposes) in component securities of the Underlying Index. The Underlying Index is sponsored and maintained by Abacus FCF Indexes LLC (the Index Provider), an affiliate of the Adviser. The Underlying Index is a rules-based equity index designed to track the performance of the small-cap segment of U.S. publicly traded companies with strong free cash flow return on invested capital (FCF-ROIC), as identified by the Index Provider through extensive historical research. The Fund intends to maintain a portfolio of securities that generally replicates the holdings of the Underlying Index. As of the date of this Prospectus, the only securities included in the Underlying Index are common stock. To be eligible for inclusion in the Underlying Index, an equity security must meet the following requirements (Eligible Securities): (i) be listed in the U.S.; (ii) fall within the small-cap category, as defined by the Index Provider, based on market capitalization; (iii) satisfy certain trading volume criteria; and (iv) have been issued by a company that has reported specific financial metrics within the last year, including but not limited to (a) free cash flow, (b) net income, and (c) revenue. The Index Provider considers a security to be within the small-cap category if it is in the smallest 85% to 97% of the cumulative market cap of all stocks listed on U.S. stock exchanges at time of selection, which, as of September 30, 2025, results in companies being deemed within the small-cap category if they have a market capitalization of $7.4 billion or less at the time of reconstitution. The Underlying Index utilizes the Advisers proprietary Abacus FCF Leaders Model (the Model) to evaluate Eligible Securities and scores them based on FCF-ROIC. The Model assesses companies through a detailed analysis of factors such as capital expenditure, accruals, cash flow margins and asset turnover to identify companies with strong and sustainable profitability. These securities are assigned active weights primarily based on their FCF-ROIC characteristics, with adjustments for company-specific risk using a proprietary factor derived from the historical volatility of each Eligible Securitys stock price over the preceding 12-month period. The resulting risk-adjusted score is used to calculate active weights for each security, which are combined with their free-float market capitalization. The Underlying Index includes those remaining Eligible Securities until one of the following thresholds is met: (1) over 90% of the cumulative weight of the Eligible Securities has been included in the Underlying Index, or (2) the number of included securities reaches 50. The weights of all securities are then rescaled to construct the final portfolio, seeking to ensure high-conviction exposure to small-cap companies with strong FCF-ROIC metrics. The Underlying Index is rebalanced and reconstituted quarterly, with a portfolio turnover cap of 25%. The Funds portfolio is generally rebalanced and reconstituted quarterly, in accordance with the Underlying Index. The Fund can use derivative instruments, including exchange-traded futures contracts, to gain exposure to component securities of the Underlying Index. The Fund will concentrate its investments ( i.e. , invest more than 25% of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated. As of September 30, 2025, the Underlying Index was concentrated in the information technology sector. The Fund is non-diversified, which means that it can invest a greater percentage of its assets in any one issuer than a diversified fund can. Show less