Calamos S&P 500 Structured Alt Protection ETF - August (CPSA) Chart & Stock Price History $26.34 +0.05 (+0.17%) As of 09:35 AM 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 - August Stock Price Performance The Calamos S&P 500 Structured Alt Protection ETF - August (CPSA) fund chart highlights key performance trends across multiple timeframes. Over the last 12 months, the fund's price has increased 8.87%, with a year-to-date return of 5.00%. In the past month, the fund has increased 1.17%, reflecting recent market activity. As of the latest close, Calamos S&P 500 Structured Alt Protection ETF - August traded at $26.28 with a market cap of $37.45 million and volume of 91,166 shares. 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Email Address 5 Day Performance+0.21%1 Month Performance+1.17%3 Month Performance+5.09%Year-To-Date Performance+5.00%1 Year Performance+8.87% CPSA Stock Chart for Friday, August, 8, 2025 CPSA Chart by TradingView Calamos S&P 500 Structured Alt Protection ETF - August Stock Price History Daily Weekly Monthly Yearly Time Frame Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year 3 Year 5 Year Time Frame Start Date End Date Export to Excel DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization08/07/2025$26.32$26.28-0.15%$26.39$26.2391,166 shs$37.45 million08/06/2025$26.26$26.32+0.23%$26.34$26.2711,502 shs$37.51 million08/05/2025$26.28$26.26-0.08%$26.29$26.2241,723 shs$37.42 million08/04/2025$26.28$26.28$26.30$26.2050,243 shs$37.45 million08/01/2025$26.20$26.28+0.31%$26.28$26.20159,176 shs$37.45 million07/31/2025$26.22$26.20-0.08%$26.26$26.1930,501 shs$37.34 million07/30/2025$26.22$26.22$26.22$26.1612,462 shs$37.36 million07/29/2025$26.21$26.22+0.04%$26.25$26.182,519 shs$37.36 million07/28/2025$26.20$26.21+0.04%$26.21$26.17200 shs$37.35 million07/25/2025$26.20$26.20$26.21$26.1628,491 shs$37.34 million Get the Latest News and Ratings for CPSA and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Calamos S&P 500 Structured Alt Protection ETF - August and its competitors with MarketBeat's FREE daily newsletter. 07/24/2025$26.19$26.20+0.04%$26.20$26.16390 shs$37.34 million07/23/2025$26.21$26.19-0.08%$26.23$26.18586 shs$37.32 million07/22/2025$26.16$26.21+0.19%$26.21$26.15636 shs$37.35 million07/21/2025$26.16$26.16$26.20$26.145,382 shs$37.28 million07/18/2025$26.15$26.16+0.04%$26.16$26.16277 shs$37.28 million07/17/2025$26.16$26.15-0.04%$26.19$26.157,700 shs$37.26 million07/16/2025$26.11$26.16+0.19%$26.16$26.16247 shs$37.28 million07/15/2025$26.12$26.11-0.04%$26.12$26.08727 shs$37.21 million07/14/2025$26.08$26.12+0.15%$26.12$26.042,278 shs$37.35 million07/11/2025$26.11$26.08-0.11%$26.09$26.09573 shs$38.47 million07/10/2025$26.09$26.11+0.08%$26.14$26.051,555 shs$38.51 million07/09/2025$26.03$26.09+0.23%$26.12$26.049,601 shs$38.48 million07/08/2025$26.02$26.03+0.04%$26.03$25.981,282 shs$38.39 million07/07/2025$26.03$26.02-0.04%$26.04$26.017,622 shs$38.38 million Related Companies Horizon Expedition Plus ETF Stock Chart Innovator Equity Managed 100 Buffer ETF Stock Chart Alger Concentrated Equity ETF Stock Chart SGI Enhanced Nasdaq-100 ETF Stock Chart Defiance Large Cap ex-Mag 7 ETF Stock Chart The Acquirers Fund Stock Chart AllianzIM Buffer20 Allocation ETF Stock Chart Roundhill S&P 500 Target 20 Managed Distribution ETF Stock Chart AllianzIM U.S. Large Cap Buffer10 Nov ETF Stock Chart Metaurus U.S. Equity Ex-Dividend Fund-Series 2027 Stock Chart Receive CPSA Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Calamos S&P 500 Structured Alt Protection ETF - August and its competitors with MarketBeat's FREE daily newsletter. 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