Glenmede Secured Options Portfolio (GTSOX) is an open-end mutual fund managed by Glenmede Investment Management LP that seeks long-term capital appreciation and option premiums consistent with reasonable risk to principal by selling cash-secured put options on the S&P 500 Index; it employs an active options selection process utilizing cash-secured puts and covered calls on the S&P 500, United States Treasury bills for collateral, and limited holdings in S&P 500-related ETFs such as Vanguard S&P 500 ETF to balance upside participation with downside risk management and capture volatility risk premium income. The fund targets the U.S. equity hedged category, benchmarking against the CBOE S&P 500 BuyWrite Index and CBOE PutWrite T-W Index, with no external leverage and a focus on options expiring in less than three months; Advisor Shares (GTSOX) carry a net expense ratio of 0.86%, while Institutional Shares (GLSOX), launched November 9, 2016, offer lower fees. Launched on June 30, 2010, and domiciled in the United States, the fund operates primarily for U.S. investors through platforms available in the United States and is distributed by Quasar Distributors, LLC from headquarters at 1650 Market Street, Suite 1200, Philadelphia, Pennsylvania. Recent developments include the extension of contractual management fee and expense waivers for the Secured Options Portfolio through at least February 28, 2026, enhancing net returns by reducing expenses; alongside this, Glenmede launched complementary strategies such as Global Secured Options Institutional Shares on May 12, 2025, and continues active management under portfolio manager Sean Heron, who has overseen the fund since inception. The portfolio maintains significant allocations to S&P 500 Index options (e.g., December 2025 calls at 117.37% long and -52.10% short) and Treasury bills (approximately 18.78% in government securities), reflecting its disciplined approach amid ongoing market volatility as of late 2025.