Calamos Nasdaq-100 Structured Alt Protection ETF - September (CPNS) Chart & Stock Price History $26.90 +0.02 (+0.07%) As of 09/18/2025 04:10 PM Eastern 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. Over the last 12 months, the fund's price has increased 7.64%, with a year-to-date return of 5.99%. In the past month, the fund has increased 0.94%, reflecting recent market activity. As of the latest close, Calamos Nasdaq-100 Structured Alt Protection ETF - September traded at $26.90 with a market cap of $24.21 million and volume of 1,842 shares. 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Read our full terms of service and privacy policy. 5 Day Performance+0.15%1 Month Performance+0.94%3 Month Performance+3.03%Year-To-Date Performance+5.99%1 Year Performance+7.64% CPNS Stock Chart for Friday, September, 19, 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 Capitalization09/18/2025$26.88$26.90+0.07%$26.93$26.901,842 shs$24.21 million09/17/2025$26.90$26.88-0.07%$26.91$26.842,903 shs$24.19 million09/16/2025$26.89$26.90+0.04%$26.90$26.882,575 shs$24.21 million09/15/2025$26.86$26.89+0.11%$26.89$26.853,301 shs$24.20 million09/12/2025$26.86$26.86$26.87$26.851,785 shs$24.17 million09/11/2025$26.81$26.86+0.19%$26.87$26.8418,293 shs$24.17 million09/10/2025$26.81$26.81$26.84$26.802,504 shs$24.13 million09/09/2025$26.80$26.81+0.04%$26.85$26.7816,861 shs$24.13 million09/08/2025$26.78$26.80+0.07%$26.80$26.773,181 shs$24.12 million09/05/2025$26.76$26.78+0.07%$26.97$26.7712,625 shs$24.10 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. 09/04/2025$26.73$26.76+0.11%$26.76$26.6933,903 shs$24.08 million09/03/2025$26.69$26.73+0.15%$26.74$26.6737,842 shs$24.06 million09/02/2025$26.69$26.69$26.78$26.60129,339 shs$24.02 million09/01/2025$26.69$26.69$26.72$26.6613,263 shs$24.02 million08/29/2025$26.69$26.69$26.72$26.6613,263 shs$24.02 million08/28/2025$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 million Related Companies JPMorgan U.S. Research Enhanced Large Cap ETF Stock Price Chart First Trust S&P 500 Diversified Dividend Aristocrats ETF Stock Price Chart AllianzIM U.S. Large Cap Buffer10 Nov ETF Stock Price Chart Calamos S&P 500Structured Alt Protection ETF- February Stock Price Chart FT Vest U.S. Equity Equal Weight Buffer ETF - June Stock Price Chart AllianzIM U.S. Large Cap Buffer10 Jun ETF Stock Price Chart Parametric Equity Plus ETF Stock Price Chart FT Vest U.S. Equity Equal Weight Buffer ETF - September Stock Price Chart Polen Capital International Growth ETF Stock Price Chart AllianzIM U.S. Large Cap Buffer10 Mar 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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