Protagonist Therapeutics (PTGX) Options Chain & Prices $148.10 +1.62 (+1.10%) As of 10:25 AM Eastern This is a fair market value price provided by Massive. Learn more. Add Compare Share Share Options Chain Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFDA EventsFinancialsInsider TradesNews and TrendsOptions ChainOwnershipSEC FilingsShort Interest PTGX Put and Call Options List 4/16/2027 1/15/2027 10/16/2026 9/18/2026 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 ExpiresStrike PriceClose PricePut/CallVolumeVolume AskVolume BidOpen InterestImplied VolatilityDeltaTrades9/18/2026$135.00$13.427Call2 - 237(+2)48.27% (-3.47%)0.80058129/18/2026$145.00$6.655Call2 - 286(+0)46.08% (-1.43%)0.56578929/18/2026$155.00$2.779Call1 - 113(+0)46.63% (-1.72%)0.31106119/18/2026$165.00$1.101Call1 - 110(+0)49.04% (-3.52%)0.1467441End-of-day options data provided by Trade Alert and Intrinio. Related Companies and Tools Related Companies Biogen Options Data Alnylam Pharmaceuticals Options Data BioNTech Options Data Insmed Options Data Roivant Sciences Options Data Incyte Options Data United Therapeutics Options Data Genmab A/S Options Data BridgeBio Pharma Options Data Ascendis Pharma A/S Options Data Options Chain Tools Short Interest TrackerShort Interest IncreasesShort Interest DecreasesUnusual Call VolumeUnusual Put Volume This page (NASDAQ:PTGX) was last updated on 9/2/2026 by MarketBeat.com Staff. From Our PartnersA Simple Guide to Options Trading While It's Still FreeA free copy of Options Trading Made Simple is available now but wont stay that way for long. 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