ETF Series Solutions – Aptus October Deep Buffer ETF is an actively managed, non-diversified exchange-traded fund that seeks to provide investment returns matching the share-price performance of the SPDR S&P 500 ETF Trust, up to a predetermined upside cap, while buffering a specified range of losses over a 12-month October-to-September investment period. The Fund is a series of ETF Series Solutions, a U.S.-domiciled open-end management investment company, and is advised by Aptus Capital Advisors, LLC, headquartered in Fairhope, Alabama. Trading on Cboe BZX Exchange under the ticker OCDB, the Fund principally provides U.S. large-cap equity-market exposure through a structured options strategy rather than direct holdings of constituent equities. Its core investment products comprise exchange-traded flexible exchange options, or FLEX Options, referencing SPDR S&P 500 ETF Trust shares; option combinations designed to establish an annual upside cap; and a deep-buffer feature intended to mitigate losses of the reference asset within a designated loss range, generally from approximately 4% to 34%, before fees and expenses. The Fund targets investors, financial advisers and institutions seeking defined-outcome equity exposure, partial downside-risk protection and tax-efficient ETF implementation. OCDB incurs a 0.25% expense ratio, is distributed by Quasar Distributors, LLC, and has an inception date of May 5, 2026. Its principal recent strategic development is its May 2026 launch by Aptus Capital Advisors as part of a quarterly suite of low-cost Deep Buffer ETFs, alongside the Aptus January Deep Buffer ETF, Aptus April Deep Buffer ETF and Aptus July Deep Buffer ETF; the series expands Aptus’s options-based ETF platform with 30%-downside-buffer strategies designed to offer capped upside participation in U.S. equity markets at a lower fee level than many defined-outcome ETF alternatives.