Calamos S&P 500 Structured Alt Protection ETF - September (CPST) Chart & Stock Price History $25.33 +0.09 (+0.36%) As of 05/2/2025 04:10 PM Eastern Add Compare Share Share Chart Stock AnalysisChartHoldingsOwnershipBuy This Stock Calamos S&P 500 Structured Alt Protection ETF - September Stock Price Performance 5 Day Performance+0.84%1 Month Performance+1.60%3 Month Performance-0.35%6 Month Performance+1.12%Year-To-Date Performance+0.04% Receive CPST Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Calamos S&P 500 Structured Alt Protection ETF - September and its competitors with MarketBeat's FREE daily newsletter. Email Address CPST Stock Chart for Saturday, May, 3, 2025 CPST Chart by TradingView Calamos S&P 500 Structured Alt Protection ETF - September 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 Capitalization05/02/2025$25.24$25.33+0.36%$25.39$25.2912,076 shs$24.70 million05/01/2025$25.26$25.24-0.08%$25.24$25.242 shs$24.61 million04/30/2025$25.16$25.26+0.40%$25.26$25.023,386 shs$24.63 million04/29/2025$25.12$25.16+0.16%$25.16$25.1650 shs$24.53 million04/28/2025$25.08$25.12+0.16%$25.12$25.1267 shs$25.12 million04/25/2025$25.05$25.08+0.12%$25.08$25.0891 shs$25.08 million04/24/2025$24.94$25.05+0.44%$25.05$25.04419 shs$25.05 million04/23/2025$24.84$24.94+0.40%$24.96$24.94658 shs$24.94 million04/22/2025$24.73$24.84+0.44%$24.84$24.84273 shs$24.84 million04/21/2025$24.84$24.73-0.44%$24.73$24.73342 shs$24.73 million Get the Latest News and Ratings for CPST and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Calamos S&P 500 Structured Alt Protection ETF - September and its competitors with MarketBeat's FREE daily newsletter. 04/18/2025$24.84$24.84$24.85$24.84505 shs$24.84 million04/17/2025$24.85$24.84-0.04%$24.85$24.84505 shs$24.84 million04/16/2025$24.98$24.85-0.52%$24.94$24.851,037 shs$24.85 million04/15/2025$25.00$24.98-0.08%$24.98$24.941,038 shs$24.98 million04/14/2025$25.00$25.00$25.00$25.00861 shs$25 million04/11/2025$24.92$25.00+0.32%$25.00$24.926,043 shs$25 million04/10/2025$25.07$24.92-0.60%$24.92$24.891,370 shs$24.92 million04/09/2025$24.67$25.07+1.62%$25.15$24.669,733 shs$25.07 million04/09/2025$24.67$25.07+1.62%$25.15$24.669,733 shs$25.07 million04/08/2025$24.68$24.67-0.04%$24.70$24.67502 shs$24.67 million04/08/2025$24.68$24.67-0.04%$24.70$24.67502 shs$24.67 million04/07/2025$24.67$24.68+0.04%$24.74$24.6313,984 shs$25.42 million04/04/2025$24.93$24.67-1.04%$24.78$24.671,161 shs$25.41 million04/03/2025$25.26$24.93-1.31%$24.93$24.93435 shs$25.68 million04/02/2025$25.21$25.26+0.20%$25.26$25.26700 shs$26.02 million Related Companies FT Vest U.S. Equity Equal Weight Buffer ETF - June Stock Chart AllianzIM U.S. Large Cap Buffer10 Mar ETF Stock Chart Direxion Daily S&P 500 High Beta Bear 3X Shares Stock Chart SoFi Social 50 ETF Stock Chart Calvert US Large-Cap Diversity, Equity and Inclusion Index ETF Stock Chart Cambria Tax Aware ETF Stock Chart First Trust S&P 500 Diversified Dividend Aristocrats ETF Stock Chart Roundhill S&P 500 Target 20 Managed Distribution ETF Stock Chart Invesco S&P 500 Minimum Variance ETF Stock Chart QRAFT AI-Enhanced U.S. Large Cap Momentum ETF Stock Chart Receive CPST Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Calamos S&P 500 Structured Alt Protection ETF - September and its competitors with MarketBeat's FREE daily newsletter. 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