Westlake (WLK) Options Chain & Prices $81.26 -0.59 (-0.72%) As of 11:05 AM Eastern This is a fair market value price provided by Polygon.io. Learn more. Add Compare Share Share Options Chain Stock AnalysisAnalyst ForecastsChartCompetitorsDividendEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSustainabilityTrendsBuy This Stock WLK Put and Call Options List 1/16/2026 12/19/2025 10/17/2025 9/19/2025 8/15/2025 7/18/2025 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 VolatilityDeltaTrades7/18/2025$70.00$0.144Put11 - 107(+0)45.44% (-3.98%)-0.04474917/18/2025$75.00$7.449Call100 - - 128(+0)39.18% (-3.52%)0.87142117/18/2025$80.00$1.549Put50 - 5032(+0)35.52% (-3.62%)-0.36238127/18/2025$80.00$3.538Call10321210(+5)35.52% (-3.62%)0.64565537/18/2025$85.00$1.321Call11 - 79(+0)36.43% (-4.04%)0.3356611End-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 Kronos Worldwide Options Data Options Chain Tools Short Interest TrackerShort Interest IncreasesShort Interest DecreasesUnusual Call VolumeUnusual Put Volume This page (NYSE:WLK) was last updated on 7/3/2025 by MarketBeat.com Staff From Our PartnersThis Signal Only Flashes Once Every 4 Years – And It Just TriggeredThis same signal has appeared twice before in the past 8 years — both times, it kicked off major moves in cryp...Crypto Swap Profits | SponsoredTrump’s New Order Could Boost Social Security Benefits by 400%If you collect—or plan to collect—Social Security, you need to see this. 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