National Grid Transco (NGG) Options Chain & Prices $71.82 +1.43 (+2.03%) Closing price 08/1/2025 03:59 PM EasternExtended Trading$71.82 0.00 (-0.01%) As of 08/1/2025 06:04 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 8/2/2025 by MarketBeat.com Staff From Our PartnersElon’s Secret Social Security BombshellTo All Americans Born Before April 16th, 1963: Did Trump Just Give The Green Light To Radically RE-DO Social S...Banyan Hill Publishing | SponsoredOne stock to replace NvidiaI'm a Futurist: Here are 3 stocks better than Nvidia Nvidia's own customers could soon become fierce compet...InvestorPlace | SponsoredJeff Bezos Launches "ChatGPT Killer"?Amazon just launched Nova—its secretive new AI system designed to rival ChatGPT. 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