NYSEARCA:CPST Calamos S&P 500 Structured Alt Protection ETF - September (CPST) Price, Holdings, & News $25.33 +0.09 (+0.36%) As of 05/2/2025 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$25.29▼$25.3950-Day Range$24.67▼$25.5152-Week Range$24.63▼$25.64Volume12,076 shsAverage Volume8,767 shsMarket Capitalization$24.70 millionAssets Under Management$24.72 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… Calamos S&P 500 Structured Alt Protection ETF - September ExpensesTypeCPSTLarge Cap ETFsEquity ETFsNYSEARCA ETFsAll ETFsManagement Fee0.69%0.59%0.57%0.52%0.53%Other Expenses0.00%0.30%0.49%0.56%0.52%Total Expense0.69%0.65%0.72%0.73%0.71%Fee Waiver0.00%-0.24%-0.49%-0.65%-0.54%Net Expense0.69%0.62%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 increased by 0.0% and is now trading at $25.33. 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 Burkett Financial Services LLC (0.44%). 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$24.72 million Average Daily Volume$0.00 Discount/Premium-0.02% 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 Shares975,001BetaN/A Creation Unit25,000 Creation Fee$250.00 10 "Recession Proof" Stocks That Will Thrive in Any MarketWhich stocks are likely to thrive in today's challenging market? Enter your email address and we'll send you MarketBeat's list of ten stocks that will drive in any economic environment.Get This Free Report Top 4 CPST Holdings4Spy 250829 C 0.79 4Spy 250829 C 0.79Holding Weight: 101.76%4Spy 250829 P 563.68 4Spy 250829 P 563.68Holding Weight: 2.39%UsdHolding Weight: 0.15%4Spy 250829 C 606.01 4Spy 250829 C 606.01Holding Weight: -4.30%Full Holdings DetailsCPST Geographic ExposureCPST Currency Exposure This page (NYSEARCA:CPST) was last updated on 5/5/2025 by MarketBeat.com Staff From Our PartnersWarning: “DOGE Collapse” imminentElon Strikes Back You may already sense that the tide is turning against Elon Musk and DOGE. Just this week...Altimetry | SponsoredShocking AI play that’s beats Nvidia by a country mileYou’ve seen the headlines about Nvidia. Now Tim Sykes is sounding the alarm — because what CEO Jensen Huang is...Timothy Sykes | SponsoredGold Alert: The Truth About Fort Knox Is ComingOwning physical gold isn’t the best way to profit. 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