NYSEARCA:CPSM Calamos S&P 500 Structured Alt Protection ETF - May (CPSM) Price, Holdings, & News $29.53 0.00 (0.00%) Closing price 04:10 PM EasternExtended Trading$29.54 +0.00 (+0.02%) As of 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 Massive. Learn more. Add Compare Share Share Stock Analysis Stock AnalysisChartHoldingsOwnershipSEC FilingsBuy This Stock About Calamos S&P 500 Structured Alt Protection ETF - May (NYSEARCA:CPSM) View Price History Chart DataSkip Price History Chart 1 Day 5 Days 30 Days 90 Days 1 Year Advanced 1 Day 1 Day 5 Days 30 Days 90 Days 1 Year Advanced Show volume Show extended hours Get CPSM alerts:Sign Up Key Stats Today's Range$29.51▼$29.5850-Day Range$29.15▼$29.5352-Week Range$27.75▼$29.65Volume831 shsAverage Volume5,209 shsMarket Capitalization$56.11 millionAssets Under Management$57.83 millionDividend YieldN/ANet Expense Ratio0.69%Aggregate RatingN/A ETF Overview The Calamos S&P 500 Structured Alt Protection ETF – May (CPSM) is an exchange-traded fund that trades on the NYSEARCA exchange in the United States. Read More Calamos S&P 500 Structured Alt Protection ETF - May ExpensesTypeCPSMLarge Cap ETFsEquity ETFsNYSEARCA ETFsAll ETFsManagement Fee0.69%0.58%0.57%0.51%0.53%Other Expenses0.00%0.28%0.53%0.60%0.54%Total Expense0.69%0.64%0.75%0.75%0.73%Fee Waiver0.00%-0.27%-0.67%-0.77%-0.68%Net Expense0.69%0.61%0.63%0.57%0.60% Receive CPSM Stock News and Ratings via Email Sign-up to receive the latest news and ratings for Calamos S&P 500 Structured Alt Protection ETF - May and its competitors with MarketBeat's FREE daily newsletter. Submit View SMS TermsSMS is currently available in Australia, Belgium, Canada, France, Germany, Ireland, Italy, New Zealand, the Netherlands, Singapore, South Africa, Spain, Switzerland, the United Kingdom, and the United States. By 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. 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He argues the next phase will separate winners from losers, and reveals what he's watching instead of big names like Nvidia.August 14 at 1:00 AM | TradeSmith (Ad)Calamos Laddered S&P 500 Str Alt Prt ETFDecember 24, 2025 | money.usnews.comCalamos S&P 500 Structured Alt Protection ETF May (CPSM) Dividend HistoryMay 24, 2025 | nasdaq.comCalamos Announces Upside Cap Range for Upcoming S&P 500® Structured Alt Protection ETF™ -- May (CPSM) Reset Providing Renewed 100% Downside Protection Over One YearApril 17, 2025 | prnewswire.comSee More Headlines CPSM ETF - Frequently Asked Questions How have CPSM shares performed this year? Calamos S&P 500 Structured Alt Protection ETF - May's stock was trading at $28.63 at the beginning of 2026. Since then, CPSM stock has increased by 3.1% and is now trading at $29.53. How do I buy shares of Calamos S&P 500 Structured Alt Protection ETF - May? Shares of CPSM 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. What other stocks do shareholders of Calamos S&P 500 Structured Alt Protection ETF - May own? Based on aggregate information from My MarketBeat watchlists, some other companies that Calamos S&P 500 Structured Alt Protection ETF - May investors own include Pfizer (PFE), Banco Bilbao Viscaya Argentaria (BBVA), Bank of America (BAC), Axsome Therapeutics (AXSM) and Anavex Life Sciences (AVXL). Fund Details IssuerCalamos Advisors Fund NameCalamos S&P 500 Structured Alt Protection ETF - May Tax ClassificationRegulated Investment Company Stock ExchangeNYSEARCACurrent SymbolNYSEARCA:CPSM Inception Date5/1/2024 Fund ManagerEli Pars, Jason Hill, David O'Donohue, Jimmy Young, Anthony Vecchiolla WebN/A PhoneN/AFund Focus Asset ClassEquity BenchmarkN/A CategorySize and Style FocusLarge Cap Development LevelDeveloped Markets RegionNorth America Number of Holdings5 Fund Statistics Assets Under Management$57.83 million Average Daily Volume$0.00 Discount/Premium-0.12% 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 Options OptionableN/A Short Interest11,300 shs Miscellaneous Outstanding Shares1,900,000Beta0.08 Creation Unit25,000 Creation Fee$250.00 Don't Wait for the OpenAI IPOThe AI wave will soon hit public markets with Anthropic and OpenAI set to go public later this year. However, you don't have to wait to invest. This report shows seven AI stocks that you can buy today while the big model providers get ready to go public.Get This Free Report Top 4 CPSM Holdings4spy 260430 C 3.83 4spy 260430 C 3.83Holding Weight: 108.73%UsdHolding Weight: 6.67%4spy 260430 P 554.54 4spy 260430 P 554.54Holding Weight: 0.30%4spy 260430 C 593.36 4spy 260430 C 593.36Holding Weight: -15.71%Full Holdings DetailsCPSM Geographic ExposureCPSM Currency Exposure This page (NYSEARCA:CPSM) was last updated on 8/14/2026 by MarketBeat.com Staff. From Our PartnersHere’s the stock symbol I’ve promisedWhitney Tilson of Stansberry Research has long recommended Berkshire Hathaway as a core retirement holding - b...Stansberry Research | SponsoredTrump’s New Currency ResetTrump is launching a new $250 bill - but that may be a distraction. 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