Calamos S&P 500 Structured Alt Protection ETF October (CPSO) Chart & Stock Price History $25.37 0.00 (0.00%) As of 02:23 PM Eastern This is a fair market value price provided by Polygon.io. Learn more. Add Compare Share Share Chart Stock AnalysisChartHoldingsOwnershipBuy This Stock Calamos S&P 500 Structured Alt Protection ETF October Stock Price Performance 5 Day Performance-0.31%1 Month Performance-1.21%3 Month Performance-0.43%6 Month Performance+0.44%Year-To-Date Performance-0.43% Receive CPSO Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Calamos S&P 500 Structured Alt Protection ETF October and its competitors with MarketBeat's FREE daily newsletter. Email Address CPSO Stock Chart for Tuesday, April, 1, 2025 CPSO Chart by TradingViewRemove Ads Calamos S&P 500 Structured Alt Protection ETF October Stock Price History Daily Weekly Monthly Time Frame Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year Time Frame * Start Date * End Date Export to Excel DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization03/31/2025$25.36$25.37+0.04%$25.37$25.37119 shs$18.39 million03/28/2025$25.45$25.36-0.35%$25.36$25.33969 shs$18.39 million03/27/2025$25.47$25.45-0.08%$25.45$25.44594 shs$18.45 million03/26/2025$25.53$25.47-0.24%$25.48$25.471,105 shs$18.47 million03/25/2025$25.52$25.53+0.04%$25.53$25.53903 shs$18.51 million03/24/2025$25.41$25.52+0.43%$25.52$25.50903 shs$18.50 million03/21/2025$25.41$25.41$25.41$25.37759 shs$18.42 million03/20/2025$25.43$25.41-0.08%$25.41$25.41223 shs$18.42 million03/19/2025$25.37$25.43+0.24%$25.43$25.43222 shs$18.44 million03/18/2025$25.44$25.37-0.28%$25.37$25.37298 shs$18.39 million Get the Latest News and Ratings for CPSO and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Calamos S&P 500 Structured Alt Protection ETF October and its competitors with MarketBeat's FREE daily newsletter. 03/17/2025$25.40$25.44+0.16%$25.44$25.448 shs$18.44 million03/14/2025$25.28$25.40+0.47%$25.40$25.364,390 shs$20.32 million03/13/2025$25.37$25.28-0.35%$25.28$25.28420 shs$20.22 million03/12/2025$25.36$25.37+0.04%$25.37$25.3710 shs$20.30 million03/11/2025$25.40$25.36-0.16%$25.36$25.363,226 shs$20.29 million03/10/2025$25.54$25.40-0.55%$25.47$25.403,226 shs$20.32 million03/07/2025$25.51$25.54+0.12%$25.54$25.54132 shs$20.43 million03/06/2025$25.59$25.51-0.31%$25.51$25.51220 shs$20.41 million03/05/2025$25.54$25.59+0.20%$25.59$25.52348 shs$20.47 million03/04/2025$25.56$25.54-0.08%$25.62$25.472,799 shs$20.43 million03/03/2025$25.68$25.56-0.47%$25.63$25.562,293 shs$20.45 million02/28/2025$25.60$25.68+0.31%$25.68$25.572,736 shs$20.54 million Related Companies AZAA Stock Chart CPSR Stock Chart CPSY Stock Chart FLCC Stock Chart SEPT Stock Chart RSDE Stock Chart SPBU Stock Chart GNOV Stock Chart QRFT Stock Chart LIVR Stock Chart Receive CPSO Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Calamos S&P 500 Structured Alt Protection ETF October and its competitors with MarketBeat's FREE daily newsletter. 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