TransAlta (TAC) Options Chain & Prices $11.86 -0.10 (-0.79%) As of 10:23 AM Eastern This is a fair market value price provided by Polygon.io. Learn more. Add Compare Share Share Options Chain Stock AnalysisAnalyst ForecastsChartCompetitorsDividendEarningsFinancialsHeadlinesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock TAC Put and Call Options List 1/16/2026 12/19/2025 11/21/2025 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$11.00$0.946Call200200 - 742(-3)45.18% (+2.21%)0.99344847/18/2025$12.00$0.118Call33 - 242(-1)40.50% (+0.03%)0.4455432End-of-day options data provided by Trade Alert and Intrinio. Related Companies and Tools Related Companies Essential Utilities Options Chain Brookfield Renewable Partners Options Chain Oklo Options Chain Clearway Energy Options Chain Comp En De Mn Cemig ADS Options Chain Companhia Paranaense de Energia (COPEL) Options Chain TXNM Energy Options Chain Brookfield Infrastructure Options Chain Brookfield Renewable Options Chain ONE Gas Options Chain Options Chain Tools Short Interest TrackerShort Interest IncreasesShort Interest DecreasesUnusual Call VolumeUnusual Put Volume This page (NYSE:TAC) was last updated on 7/17/2025 by MarketBeat.com Staff From Our PartnersINVESTOR ALERT: Tiny “$3 AI Wonder Stock” on the Verge of Blasting OffRight now, we’re witnessing a monumental shift in the world.Traders Agency | SponsoredMarket Panic: Trump Just Dropped a Bomb on Your Stockstock Market Panic: Trump Just Dropped a Bomb on Your Stocks The market is in freefall—and Trump's new tarif...American Alternative | SponsoredThis 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 | SponsoredPresidential Bombshell: $150T Resource to Be Released as soon as this Summer?Something extraordinary is happening in Washington. 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