NYSEARCA:CPSO Calamos S&P 500 Structured Alt Protection ETF - October (CPSO) Price, Holdings, & News $25.75 -0.09 (-0.35%) As of 05/22/2025 04:10 PM Eastern Add Compare Share Share Stock Analysis Stock AnalysisChartHoldingsOwnershipBuy This Stock About Calamos S&P 500 Structured Alt Protection ETF - October (NYSEARCA:CPSO) 30 days 90 days 365 days Advanced Chart View Price History Chart DataSkip Price History Chart Get CPSO alerts:Sign Up Key Stats Today's Range$25.75▼$25.7550-Day Range$24.96▼$25.8552-Week Range$24.89▼$25.85Volume2 shsAverage Volume12,569 shsMarket Capitalization$16.09 millionAssets Under Management$16.10 millionDividend YieldN/ANet Expense Ratio0.69%Aggregate RatingN/A ETF OverviewThe Calamos S&P 500 Structured Alt Protection ETF - October (CPSO) is an exchange-traded fund that mostly invests in large cap equity. The fund seeks to track the return of the SPDR S&P 500 ETF Trust (SPY), to a cap, with 100% downside hedge over a one-year outcome period. The actively managed fund holds FLEX options to obtain exposure CPSO was launched on Oct 1, 2024 and is issued by Calamos.Read More… Calamos S&P 500 Structured Alt Protection ETF - October ExpensesTypeCPSOLarge Cap ETFsEquity ETFsNYSEARCA ETFsAll ETFsManagement Fee0.69%0.59%0.57%0.52%0.53%Other Expenses0.00%0.30%0.48%0.56%0.51%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 CPSO Stock News and Ratings via Email Sign-up to receive the latest news and ratings for Calamos S&P 500 Structured Alt Protection ETF - October and its competitors with MarketBeat's FREE daily newsletter. Email Address CPSO ETF News HeadlinesNo headlines for this company have been tracked by MarketBeat.com CPSO ETF - Frequently Asked Questions How have CPSO shares performed this year? Calamos S&P 500 Structured Alt Protection ETF - October's stock was trading at $25.48 at the beginning of 2025. Since then, CPSO shares have increased by 1.1% and is now trading at $25.75. View the best growth stocks for 2025 here. Who are Calamos S&P 500 Structured Alt Protection ETF - October's major shareholders? Calamos S&P 500 Structured Alt Protection ETF - October's top institutional shareholders include Calamos Advisors LLC (27.99%), Capital Analysts LLC (1.78%), Sloy Dahl & Holst LLC (1.48%) and Harbour Investments Inc. (0.62%). How do I buy shares of Calamos S&P 500 Structured Alt Protection ETF - October? Shares of CPSO 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 - October Tax ClassificationRegulated Investment Company Stock ExchangeNYSEARCACurrent SymbolNYSEARCA:CPSO Inception Date9/27/2024 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$16.10 million Average Daily Volume$0.00 Discount/Premium0.00% 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 Shares625,001BetaN/A Creation Unit25,000 Creation Fee$250.00 Elon Musk's Next MoveExplore Elon Musk’s boldest ventures yet—from AI and autonomy to space colonization—and find out how investors can ride the next wave of innovation.Get This Free Report Top 4 CPSO Holdings4Spy 250930 C 0.80 4Spy 250930 C 0.80Holding Weight: 96.12%4Spy 250930 P 573.76 4Spy 250930 P 573.76Holding Weight: 5.10%UsdHolding Weight: 0.15%4Spy 250930 C 612.03 4Spy 250930 C 612.03Holding Weight: -1.37%Full Holdings DetailsCPSO Geographic ExposureCPSO Currency Exposure This page (NYSEARCA:CPSO) was last updated on 5/23/2025 by MarketBeat.com Staff From Our PartnersMarket Panic: Trump Just Dropped a Bomb on Your Stockstock Market Panic: Trump Just Dropped a Bomb on Your Stocks The market is in freefall—and Trump's new tarif...American Alternative | SponsoredWhite House to reset Social Security?Elon Musk's parting DOGE gift looks set to shock America... 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