Calamos Nasdaq-100 Structured Alt Protection ETF - September (CPNS) Chart & Stock Price History $26.69 +0.02 (+0.07%) Closing price 08/28/2025 04:10 PM EasternExtended Trading$26.68 -0.01 (-0.02%) As of 08/28/2025 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 AnalysisChartHoldingsOwnershipBuy This Stock Calamos Nasdaq-100 Structured Alt Protection ETF - September Stock Price Performance The Calamos Nasdaq-100 Structured Alt Protection ETF - September (CPNS) fund chart highlights key performance trends across multiple timeframes. Since the beginning of the year, the fund increased 5.16%. In the past month, the fund has increased 0.49%, reflecting recent market activity. As of the latest close, Calamos Nasdaq-100 Structured Alt Protection ETF - September traded at $26.69 with a market cap of $24.02 million and volume of 1,471 shares. Receive CPNS Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Calamos Nasdaq-100 Structured Alt Protection ETF - September 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+0.49%3 Month Performance+2.93%Year-To-Date Performance+5.16% CPNS Stock Chart for Friday, August, 29, 2025 CPNS Chart by TradingView Calamos Nasdaq-100 Structured Alt Protection ETF - September 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 Capitalization08/28/2025$26.67$26.69+0.07%$26.71$26.631,471 shs$24.02 million08/27/2025$26.66$26.67+0.04%$26.69$26.65300 shs$24.00 million08/26/2025$26.67$26.66-0.04%$26.67$26.652,955 shs$23.99 million08/25/2025$26.66$26.67+0.04%$26.67$26.641,003 shs$24.00 million08/22/2025$26.66$26.66$26.68$26.66667 shs$23.99 million08/21/2025$26.63$26.66+0.11%$26.66$26.636,405 shs$23.99 million08/20/2025$26.65$26.63-0.08%$26.63$26.602,304 shs$23.97 million08/19/2025$26.65$26.65$26.66$26.627,702 shs$23.99 million08/18/2025$26.65$26.65$26.66$26.631,826 shs$23.99 million08/15/2025$26.64$26.65+0.04%$26.65$26.622,346 shs$23.99 million Get the Latest News and Ratings for CPNS and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Calamos Nasdaq-100 Structured Alt Protection ETF - September and its competitors with MarketBeat's FREE daily newsletter. 08/14/2025$26.64$26.64$26.64$26.6412 shs$23.98 million08/13/2025$26.63$26.64+0.04%$26.64$26.641 shs$23.98 million08/12/2025$26.61$26.63+0.08%$26.63$26.631 shs$23.97 million08/11/2025$26.61$26.61$26.61$26.611 shs$23.95 million08/08/2025$26.59$26.61+0.08%$26.62$26.591,801 shs$23.95 million08/07/2025$26.59$26.59$26.59$26.5982 shs$23.93 million08/06/2025$26.55$26.59+0.15%$26.59$26.59872 shs$23.93 million08/05/2025$26.56$26.55-0.04%$26.58$26.54872 shs$23.90 million08/04/2025$26.51$26.56+0.19%$26.56$26.541,955 shs$23.90 million08/01/2025$26.55$26.51-0.15%$26.51$26.46645 shs$23.86 million07/31/2025$26.56$26.55-0.04%$26.55$26.51205 shs$23.90 million07/30/2025$26.56$26.56$26.56$26.561,680 shs$23.90 million07/29/2025$26.56$26.56$26.56$26.511,680 shs$23.90 million07/28/2025$26.54$26.56+0.08%$26.56$26.53106 shs$23.90 million Related Companies FT Vest U.S. Equity Equal Weight Buffer ETF - September Stock Price Chart Calamos S&P 500Structured Alt Protection ETF- February Stock Price Chart AllianzIM U.S. Large Cap Buffer10 Jun ETF Stock Price Chart JPMorgan U.S. Research Enhanced Large Cap ETF Stock Price Chart Parametric Equity Plus ETF Stock Price Chart Calamos S&P 500 Structured Alt Protection ETF - September Stock Price Chart Invesco S&P 500 Minimum Variance ETF Stock Price Chart Calamos S&P 500Structured Alt Protection ETF - March Stock Price Chart First Trust S&P 500 Diversified Dividend Aristocrats ETF Stock Price Chart Calamos Nasdaq Equity & Income ETF Stock Price Chart Receive CPNS Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Calamos Nasdaq-100 Structured Alt Protection ETF - September and its competitors with MarketBeat's FREE daily newsletter. 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