Masimo (MASI) Options Chain & Prices $169.96 -7.25 (-4.09%) Closing price 02/21/2025 04:00 PM EasternExtended Trading$166.74 -3.22 (-1.89%) As of 02/21/2025 07:49 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 Polygon.io. Learn more. Add Compare Share Share Options Chain Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSustainabilityTrends MASI Put and Call Options List 10/17/2025 9/19/2025 6/20/2025 4/17/2025 3/21/2025 Options Date Put and Call Options Put Options Call Options Options Type All In The Money Out of The Money Moneyness With Volume Without Volume All Volume Strike Price Min Strike Price Max Export to Excel ExpiresStrike PriceClose PricePut/CallVolumeVolume AskVolume BidOpen InterestImplied VolatilityDeltaTrades3/21/2025$155.00$20.054Call1 - - 9(+0)56.36% (-1.54%)0.76079113/21/2025$160.00$5.275Put11 - 30(+1)53.74% (-1.58%)-0.30330713/21/2025$160.00$16.264Call2 - - 3(+0)53.74% (-1.58%)0.69967523/21/2025$165.00$12.884Call73 - 5302(+289)51.73% (-1.39%)0.627125663/21/2025$180.00$5.876Call22 - 27(+2)50.17% (+0.75%)0.38482713/21/2025$185.00$4.530Call2 - 254(+0)50.96% (+1.73%)0.31594723/21/2025$190.00$3.512Call73 - 5145(+0)52.21% (+2.69%)0.257132663/21/2025$200.00$2.255Call1 - - 69(+0)55.31% (+4.21%)0.1746761End-of-day options data provided by Trade Alert and Intrinio. Related Companies and Tools Related Companies IDXX Options DXCM Options RMD Options STE Options PODD Options BAX Options HOLX Options GMED Options TFX Options ITGR Options Options Chain Tools Short Interest TrackerShort Interest IncreasesShort Interest DecreasesUnusual Call VolumeUnusual Put Volume This page (NASDAQ:MASI) was last updated on 2/22/2025 by MarketBeat.com Staff From Our PartnersSecret financial plot unfolding in Washington DC… [DEVELOPING]What stocks are next up to soar in 2025? I believe I’ve found the answer - and it might surprise you. Yo...Timothy Sykes | SponsoredElon’s “New Gold”MIT scientists just developed a brand-new metal… A metal that’s shaping up to be, not only the biggest brea...True Market Insiders | SponsoredWhy Buffett and 100 members of Congress are Piling into this One InvestmentThis isn't just another investment. It might be the last retirement stock you'll ever need. 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