Syndax Pharmaceuticals (SNDX) Options Chain & Prices $14.30 -0.75 (-4.98%) Closing price 10/17/2025 04:00 PM EasternExtended Trading$14.56 +0.25 (+1.78%) As of 07:14 AM 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 ForecastsChartCompetitorsEarningsFDA EventsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSustainabilityTrendsBuy This Stock SNDX Put and Call Options List 1/21/2028 1/15/2027 4/17/2026 1/16/2026 12/19/2025 11/21/2025 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 VolatilityDeltaTrades11/21/2025$12.00$0.867Put2110119(+0)112.39% (+1.55%)-0.245145311/21/2025$12.00$3.249Call61419(+3)112.39% (+1.55%)0.759356511/21/2025$13.00$1.284Put87187(+5)112.92% (+2.77%)-0.322823511/21/2025$14.00$1.794Put19522123134(+15)113.66% (+3.57%)-0.4018112511/21/2025$14.00$2.180Call15113126(+12)113.66% (+3.57%)0.603669611/21/2025$15.00$2.387Put11101227(+0)114.50% (+4.08%)-0.478285511/21/2025$15.00$1.774Call342209106396(+71)114.50% (+4.08%)0.5277884511/21/2025$16.00$3.053Put6 - 62012(+10)115.37% (+4.39%)-0.549688211/21/2025$16.00$1.441Call402510704(+213)115.37% (+4.39%)0.4570411311/21/2025$17.00$3.780Put1 - - 1(+0)116.24% (+4.57%)-0.614601111/21/2025$17.00$1.169Call72 - 906(+127)116.24% (+4.57%)0.3928456End-of-day options data provided by Trade Alert and Intrinio. Related Companies and Tools Related Companies PCVX Options KRYS Options PTCT Options ARWR Options ACLX Options AKRO Options CRNX Options PTGX Options KYMR Options SRRK Options Options Chain Tools Short Interest TrackerShort Interest IncreasesShort Interest DecreasesUnusual Call VolumeUnusual Put Volume This page (NASDAQ:SNDX) was last updated on 10/20/2025 by MarketBeat.com Staff From Our Partners$15 Fund: Turn Gold Boom into Real IncomeIf you've been watching gold's historic run and wondering if it's too late… I've got good news. Because the...Investors Alley | SponsoredOctober 16 Changes the Microchip Game — and InvestingWhile everyone's chasing the same AI plays, George Gilder is focused on something completely different. 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