Calamos S&P 500 Structured Alt Protection ETF - August (CPSA) Chart & Stock Price History $26.70 +0.04 (+0.15%) Closing price 10/8/2025 04:10 PM EasternExtended Trading$26.72 +0.02 (+0.07%) As of 10/8/2025 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 Chart Stock AnalysisChartHoldingsOwnershipShort InterestBuy 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 7.53%, with a year-to-date return of 6.46%. In the past month, the fund has increased 0.75%, reflecting recent market activity. As of the latest close, Calamos S&P 500 Structured Alt Protection ETF - August traded at $26.70 with a market cap of $48.06 million and volume of 1,604 shares. 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. Subscribe Now View SMS TermsBy entering your phone number and clicking the sign-up button, you agree to receive periodic text messages from MarketBeat at the phone number you submitted, including texts that may be sent using an automatic telephone dialing system. Message and data rates may apply. Message frequency will vary. Messages will consist of stock alerts, news stories, and partner advertisements/offers. Consent is not a condition of the purchase of any goods or services. Text HELP for help/customer support. 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Read our full terms of service and privacy policy. 5 Day Performance+0.11%1 Month Performance+0.75%3 Month Performance+2.34%Year-To-Date Performance+6.46%1 Year Performance+7.53% CPSA Stock Chart for Thursday, October, 9, 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 Capitalization10/08/2025$26.66$26.70+0.15%$26.70$26.661,604 shs$48.06 million10/07/2025$26.67$26.66-0.04%$26.70$26.631,530 shs$47.99 million10/06/2025$26.67$26.67$26.67$26.612,097 shs$48.01 million10/03/2025$26.67$26.67$26.71$26.674,272 shs$48.01 million10/02/2025$26.66$26.67+0.04%$26.69$26.652,893 shs$37.34 million10/01/2025$26.64$26.66+0.08%$26.68$26.6316,247 shs$37.32 million09/30/2025$26.62$26.64+0.08%$26.64$26.623,477 shs$37.30 million09/29/2025$26.60$26.62+0.08%$26.64$26.6112,608 shs$37.27 million09/26/2025$26.57$26.60+0.11%$26.61$26.592,041 shs$37.24 million09/25/2025$26.61$26.57-0.15%$26.60$26.561,790 shs$37.20 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. 09/24/2025$26.60$26.61+0.04%$26.65$26.572,105 shs$37.25 million09/23/2025$26.61$26.60-0.04%$26.69$26.603,159 shs$37.24 million09/22/2025$26.63$26.61-0.08%$26.66$26.612,176 shs$37.25 million09/19/2025$26.60$26.63+0.11%$26.65$26.591,389 shs$37.28 million09/18/2025$26.59$26.60+0.04%$26.60$26.593,220 shs$37.24 million09/17/2025$26.57$26.59+0.08%$26.62$26.591,101 shs$37.23 million09/16/2025$26.57$26.57$26.63$26.557,489 shs$37.20 million09/15/2025$26.55$26.57+0.08%$26.62$26.55798 shs$37.20 million09/12/2025$26.55$26.55$26.60$26.542,188 shs$37.17 million09/11/2025$26.53$26.55+0.08%$26.58$26.522,550 shs$37.17 million09/10/2025$26.50$26.53+0.11%$26.59$26.495,248 shs$37.14 million09/09/2025$26.50$26.50$26.55$26.47795 shs$37.10 million09/08/2025$26.48$26.50+0.08%$26.53$26.48697 shs$37.10 million Related Companies AllianzIM U.S. Large Cap Buffer10 Jul ETF Stock Chart Calamos Nasdaq - 100 Structured Alt Protection ETF - June Stock Chart Hartford US Quality Growth ETF Stock Chart Touchstone International Equity ETF Stock Chart Bancreek International Large Cap ETF Stock Chart Defiance Large Cap ex-Mag 7 ETF Stock Chart Global X S&P 500 Risk Managed Income ETF Stock Chart SGI Enhanced Nasdaq-100 ETF Stock Chart Calamos S&P 500 Structured Alt Protection ETF - July Stock Chart AllianzIM U.S. Large Cap Buffer10 Oct ETF 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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