NYSEARCA:CPST Calamos S&P 500 Structured Alt Protection ETF - September (CPST) Price, Holdings, & News $25.27 -0.01 (-0.04%) As of 04:10 PM Eastern Add Compare Share Share Stock Analysis Stock AnalysisChartHoldingsOwnershipBuy This Stock About Calamos S&P 500 Structured Alt Protection ETF - September (NYSEARCA:CPST) 30 days 90 days 365 days Advanced Chart View Price History Chart DataSkip Price History Chart Get CPST alerts:Sign Up Key Stats Today's Range$25.26▼$25.2750-Day Range$25.04▼$25.6452-Week Range$24.65▼$25.64Volume1,666 shsAverage Volume9,699 shsMarket Capitalization$26.03 millionAssets Under Management$25.31 millionDividend YieldN/ANet Expense Ratio0.69%Aggregate RatingN/A ETF OverviewThe Calamos S&P 500 Structured Alt Protection ETF - September (CPST) is an exchange-traded fund that mostly invests in large cap equity. Calamos S&P 500 Structured Alt Protection ETFTM September (the Fund) seeks to provide investment results that, before taking fees and expenses into account, match the positive price return of the SPDR S&P 500 ETF Trust (Underlying ETF) up to a cap of 7.50% (the Cap). CPST was launched on Sep 3, 2024 and is issued by Calamos.Read More… Remove Ads Calamos S&P 500 Structured Alt Protection ETF - September ExpensesTypeCPSTLarge Cap ETFsEquity ETFsNYSEARCA ETFsAll ETFsManagement Fee0.69%0.59%0.56%0.51%0.53%Other Expenses0.00%0.30%0.49%0.57%0.52%Total Expense0.69%0.65%0.72%0.73%0.71%Fee Waiver0.00%-0.24%-0.50%-0.66%-0.55%Net Expense0.69%0.63%0.63%0.58%0.60% Receive CPST Stock News and Ratings via Email Sign-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 ETF News HeadlinesNo headlines for this company have been tracked by MarketBeat.com CPST ETF - Frequently Asked Questions How have CPST shares performed this year? Calamos S&P 500 Structured Alt Protection ETF - September's stock was trading at $25.32 at the beginning of 2025. Since then, CPST shares have decreased by 0.2% and is now trading at $25.27. View the best growth stocks for 2025 here. Who are Calamos S&P 500 Structured Alt Protection ETF - September's major shareholders? Calamos S&P 500 Structured Alt Protection ETF - September's top institutional shareholders include OLD Mission Capital LLC. How do I buy shares of Calamos S&P 500 Structured Alt Protection ETF - September? Shares of CPST stock can be purchased through any online brokerage account. Popular online brokerages with access to the U.S. stock market include Charles Schwab, E*TRADE, Fidelity, and Vanguard Brokerage Services. Fund Details IssuerCalamos Advisors Fund NameCalamos S&P 500 Structured Alt Protection ETF - September Tax ClassificationRegulated Investment Company Stock ExchangeNYSEARCACurrent SymbolNYSEARCA:CPST Inception Date8/29/2024 Fund ManagerEli Pars, Jason Hill, David O'Donohue, Jimmy Young, Anthony Vecchiolla WebN/A PhoneN/AFund Focus Asset ClassEquity BenchmarkSPDR S&P 500 ETF Trust CategorySize and Style FocusLarge Cap Development LevelDeveloped Markets RegionNorth America Number of Holdings5 Fund Statistics Assets Under Management$25.31 million Average Daily Volume$0.00 Discount/Premium-0.03% Administrator, Advisor and Custodian AdministratorState Street Bank and Trust Company AdvisorCalamos Advisors LLC CustodianState Street Bank and Trust Company DistributorCalamos Financial Services LLC Transfer AgentState Street Bank and Trust Company TrusteeN/A Lead Market MakerWolverine Trading Miscellaneous Outstanding Shares1,030,000BetaN/A Creation Unit25,000 Creation Fee$250.00 The 10 Best Stocks to Own: Spring 2025Discover the 10 best stocks to own in Spring 2025, carefully selected for their growth potential amid market volatility. This exclusive report highlights top companies poised to thrive in uncertain economic conditions—download now to gain an investing edge.Get This Free Report Top 5 CPST HoldingsOption on SPDR® S&P 500® ETF TrustHolding Weight: 101.86%Option on SPDR® S&P 500® ETF TrustHolding Weight: 3.50%Us DollarHolding Weight: 0.28%Net Other AssetsHolding Weight: -0.07%Option on SPDR® S&P 500® ETF TrustHolding Weight: -5.57%Full Holdings DetailsCPST Geographic ExposureCPST Currency Exposure This page (NYSEARCA:CPST) was last updated on 3/27/2025 by MarketBeat.com Staff From Our PartnersA market crash is coming—here’s whenThe stock market cycle I've used to identify the most likely day of the next market crash is the exact same in...Chaikin Analytics | SponsoredYour Wealth is Under AttackPlease don't wait—this is your moment to take action. 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