National Grid Transco (NGG) Options Chain & Prices $71.01 -1.07 (-1.49%) Closing price 03:59 PM EasternExtended Trading$70.96 -0.05 (-0.07%) As of 04:04 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 ForecastsChartCompetitorsDividendFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock NGG Put and Call Options List 12/18/2026 3/20/2026 2/20/2026 1/16/2026 12/19/2025 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 VolatilityDeltaTradesEnd-of-day options data provided by Trade Alert and Intrinio. Related Companies and Tools Related Companies Constellation Energy Options Data Enterprise Products Partners Options Data Vistra Options Data Energy Transfer Options Data American Electric Power Options Data TC Energy Options Data Exelon Options Data Xcel Energy Options Data Fortis Options Data Korea Electric Power Options Data Options Chain Tools Short Interest TrackerShort Interest IncreasesShort Interest DecreasesUnusual Call VolumeUnusual Put Volume This page (NYSE:NGG) was last updated on 8/8/2025 by MarketBeat.com Staff From Our PartnersTrump set to Boost Social Security Checks by 400%?If you're collecting or planning to collect social security... 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