Calamos S&P 500 Structured Alt Protection ETF October (CPSO) Holdings $24.98 -0.21 (-0.83%) Closing price 04:10 PM EasternExtended Trading$24.99 +0.01 (+0.04%) As of 04:10 PM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more. Add Compare Share Share Holdings Stock AnalysisChartHoldingsOwnershipBuy This Stock Top 4 CPSO HoldingsRankCompanyCurrent PriceWeightShares Held14Spy 250930 C 0.80 4Spy 250930 C 0.80N/A102.38%36,30024Spy 250930 P 573.76 4Spy 250930 P 573.76N/A2.79%36,3003UsdN/A0.13%28,32544Spy 250930 C 612.03 4Spy 250930 C 612.03N/A-5.30%36,300 Geographic ExposureUnited States100.1%Currency ExposureUSD100.0% Related Companies and Tools Related Companies AllianzIM U.S. Large Cap Buffer10 Apr ETF Portfolio FT Vest U.S. Equity Equal Weight Buffer ETF - December Portfolio Calamos S&P 500 Structured Alt Protection ETF - January Portfolio Calamos S&P 500 Structured Alt Protection ETF - November Portfolio AllianzIM U.S. Large Cap Buffer10 Sep ETF Portfolio Federated Hermes MDT Large Cap Core ETF Portfolio FT Cboe Vest U.S. Equity Moderate Buffer ETF - November Portfolio AllianzIM Buffer15 Uncapped Allocation ETF Portfolio Calamos S&P 500Structured Alt Protection ETF - March Portfolio Calvert US Large-Cap Diversity, Equity and Inclusion Index ETF Portfolio This page (NYSEARCA:CPSO) was last updated on 4/4/2025 by MarketBeat.com Staff From Our PartnersWarning: “DOGE Collapse” imminentElon Strikes Back You may already sense that the tide is turning against Elon Musk and DOGE. 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