TransAlta (TAC) Options Chain & Prices $12.26 -0.06 (-0.45%) Closing price 03:59 PM EasternExtended Trading$12.27 +0.00 (+0.04%) As of 05:50 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 Polygon.io. Learn more. Add Compare Share Share Options Chain Stock AnalysisAnalyst ForecastsChartCompetitorsDividendEarningsFinancialsHeadlinesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock TAC Put and Call Options List 3/20/2026 1/16/2026 12/19/2025 11/21/2025 9/19/2025 8/15/2025 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 VolatilityDeltaTrades8/15/2025$13.00$0.295Call1 - 1510(+0)48.95% (+0.24%)0.332921End-of-day options data provided by Trade Alert and Intrinio. Related Companies and Tools Related Companies Companhia de saneamento Basico Do Estado De Sao Paulo - Sabesp Options Chain Essential Utilities Options Chain Oklo Options Chain Brookfield Renewable Partners Options Chain Clearway Energy Options Chain TXNM Energy Options Chain Brookfield Renewable Options Chain Comp En De Mn Cemig ADS Options Chain Companhia Paranaense de Energia (COPEL) Options Chain Brookfield Infrastructure Options Chain Options Chain Tools Short Interest TrackerShort Interest IncreasesShort Interest DecreasesUnusual Call VolumeUnusual Put Volume This page (NYSE:TAC) was last updated on 7/25/2025 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 | SponsoredGoogle did what!?!?A new technology has sparked a modern-day gold rush in Silicon Valley. 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