Westlake (WLK) Options Chain & Prices $76.08 +0.59 (+0.78%) Closing price 03:59 PM EasternExtended Trading$76.06 -0.02 (-0.03%) As of 07:50 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 ForecastsChartCompetitorsDividendEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock WLK Put and Call Options List 1/15/2027 12/18/2026 10/16/2026 8/21/2026 7/17/2026 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 VolatilityDeltaTrades7/17/2026$85.00$8.961Put1 - - 86(+0)76.97% (+27.03%)-0.9053521End-of-day options data provided by Trade Alert and Intrinio. Related Companies and Tools Related Companies AdvanSix Options Data Cabot Options Data Celanese Options Data DOW Options Data Eastman Chemical Options Data Huntsman Options Data LyondellBasell Industries Options Data Olin Options Data Hawkins Options Data Koppers Options Data Options Chain Tools Short Interest TrackerShort Interest IncreasesShort Interest DecreasesUnusual Call VolumeUnusual Put Volume This page (NYSE:WLK) was last updated on 7/13/2026 by MarketBeat.com Staff. From Our PartnersTrump's gold order: the announcement they won't put on the front pageOn August 15, 1971, Nixon interrupted prime-time television and ended the gold standard in 15 minutes - no deb...Reagan Gold Group | SponsoredTrump Takes Emergency Action - Plus Elon Musk's New VentureElon Musk has quietly launched a new venture - one that has nothing to do with rockets, EVs, or Neuralink. 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