Calamos S&P 500 Structured Alt Protection ETF - October (CPSO) Chart & Stock Price History $25.13 +0.02 (+0.08%) As of 04/17/2025 04:10 PM Eastern Add Compare Share Share Chart Stock AnalysisChartHoldingsOwnershipBuy This Stock Calamos S&P 500 Structured Alt Protection ETF - October Stock Price Performance 5 Day Performance-0.40%1 Month Performance-1.10%3 Month Performance-1.95%6 Month Performance-0.96%Year-To-Date Performance-1.37% 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 Sunday, April, 20, 2025 CPSO Chart by TradingView 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 Capitalization04/18/2025$25.13$25.13$25.13$25.116,613 shs$18.22 million04/17/2025$25.11$25.13+0.08%$25.13$25.116,613 shs$18.22 million04/16/2025$25.23$25.11-0.48%$25.11$25.11544 shs$18.21 million04/15/2025$25.25$25.23-0.08%$25.23$25.23672 shs$18.29 million04/14/2025$25.24$25.25+0.04%$25.25$25.25648 shs$18.31 million04/11/2025$25.19$25.24+0.20%$25.24$25.201,464 shs$18.30 million04/10/2025$25.34$25.19-0.59%$25.19$25.111,252 shs$18.26 million04/09/2025$24.99$25.34+1.40%$25.38$24.9020,486 shs$18.37 million04/09/2025$24.99$25.34+1.40%$25.38$24.9020,486 shs$18.37 million04/08/2025$24.96$24.99+0.12%$25.00$24.99250 shs$18.12 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. 04/08/2025$24.96$24.99+0.12%$25.00$24.99250 shs$18.12 million04/07/2025$24.98$24.96-0.08%$24.96$24.8918,456 shs$18.10 million04/04/2025$25.19$24.98-0.83%$25.07$24.989,702 shs$18.11 million04/03/2025$25.46$25.19-1.06%$25.19$25.18746 shs$18.26 million04/02/2025$25.42$25.46+0.16%$25.46$25.46684 shs$18.46 million04/01/2025$25.37$25.42+0.20%$25.42$25.3618,600 shs$18.43 million03/31/2025$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 million Related Companies RSDE Stock Chart AZAA Stock Chart PEPS Stock Chart CPSN Stock Chart SPBU Stock Chart WEBS Stock Chart CPSY Stock Chart GNOV Stock Chart SEPT Stock Chart SZNE 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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