Siga Technologies (SIGA) Options Chain & Prices $4.68 -0.03 (-0.64%) Closing price 04:00 PM EasternExtended Trading$4.67 -0.01 (-0.21%) As of 07:21 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 Options Chain Stock AnalysisAnalyst ForecastsChartCompetitorsDividendEarningsFinancialsHeadlinesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock SIGA Put and Call Options List 1/15/2027 12/18/2026 9/18/2026 7/17/2026 6/18/2026 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 VolatilityDeltaTrades6/18/2026$4.40$0.451Call11 - 53(+0)54.25% (+0.85%)0.7027316/18/2026$5.40$0.096Call2020 - 336(+32)60.98% (+0.08%)0.2308731End-of-day options data provided by Trade Alert and Intrinio. Related Companies and Tools Related Companies CMPS Options MRVI Options OLMA Options COLL Options DBVT Options HROW Options XERS Options CVAC Options SVRA Options AKTS Options Options Chain Tools Short Interest TrackerShort Interest IncreasesShort Interest DecreasesUnusual Call VolumeUnusual Put Volume This page (NASDAQ:SIGA) was last updated on 5/22/2026 by MarketBeat.com Staff. From Our PartnersYour computer is about to become a museum pieceVanguard holds $101 billion in three AI companies most investors have never heard of. BlackRock holds $82 bill...Eagle Publishing | SponsoredYour $29.97 book is free todayWhy Some Traders Skip Stocks Entirely You don't need a big account to trade options. 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