NGG Stock Summary and Trading Ideas (National Grid Transco PLC National Grid PLC (New) American Depositary Shares | NYSE:NGG)

National Grid owns and operates the electric transmission system in England and Wales. It sold the bulk of its UK gas transmission business in fiscal 2023 to fund the acquisition of PPL's UK power distribution assets. In the Northeastern United States, it serves electricity and gas customers combined in three states. It also owns regulated transmission electricity networks in the United States, metering services and merchant transmission lines in the UK.

National Grid Transco PLC National Grid PLC (New) American Depositary Shares trades on the NYSE stock market under the symbol NGG.

As of March 17, 2026, NGG stock price declined to $90.42 with 1,237,232 million shares trading.

NGG has a beta of -0.08, meaning it tends to be less sensitive to market movements. NGG has a correlation of 0.01 to the broad based SPY ETF.

NGG has a market cap of $89.85 billion. This is considered a Large Cap stock.

In the last 3 years, NGG traded as high as $94.64 and as low as $55.13.

The top ETF exchange traded funds that NGG belongs to (by Net Assets): PID, AVDE, ZAP, DFIC, FENI.

NGG has outperformed the market in the last year with a return of +48.0%, while the SPY ETF gained +20.5%. In the last 3 month period, NGG beat the market returning +19.3%, while SPY returned -0.9%. However, in the most recent 2 weeks NGG has underperformed the stock market by returning -3.7%, while SPY returned -2.3%.

NGG support price is $89.67 and resistance is $92.11 (based on 1 day standard deviation move). This means that using the most recent 20 day stock volatility and applying a one standard deviation move around the stock's closing price, stastically there is a 67% probability that NGG shares will trade within this expected range on the day.