National Grid Transco - 26 Year Stock Price History | NGG

Historical daily share price chart and data for National Grid Transco since 1999 adjusted for splits and dividends. The latest closing stock price for National Grid Transco as of May 13, 2025 is 67.53.
  • The all-time high National Grid Transco stock closing price was 74.35 on April 22, 2025.
  • The National Grid Transco 52-week high stock price is 74.82, which is 10.8% above the current share price.
  • The National Grid Transco 52-week low stock price is 55.13, which is 18.4% below the current share price.
  • The average National Grid Transco stock price for the last 52 weeks is 63.72.
For more information on how our historical price data is adjusted see the Stock Price Adjustment Guide.
National Grid Transco Historical Annual Stock Price Data
Year Average Stock Price Year Open Year High Year Low Year Close Annual % Change
2025 64.1629 59.5400 74.3500 56.1300 67.5300 13.65%
2024 61.1429 60.0306 69.3412 51.4181 59.4200 -1.26%
2023 55.9412 50.7929 62.3218 50.0160 60.1810 18.82%
2022 54.8025 58.0226 64.2012 39.0227 50.6501 -12.72%
2021 49.5524 45.5251 58.9293 42.6054 58.0306 28.96%
2020 43.5853 45.1152 49.7541 32.8196 44.9991 -0.78%
2019 38.2201 33.2782 45.5350 33.2782 45.3541 38.47%
2018 36.1668 38.0165 39.2210 31.8925 32.7526 -13.80%
2017 38.2408 33.2057 43.6880 32.7221 37.9971 13.15%
2016 38.4388 37.9897 42.2000 32.6185 33.5799 -12.37%
2015 36.5701 36.7745 39.2826 33.1991 38.3203 3.14%
2014 35.8559 31.3900 39.1248 30.9021 37.1531 16.58%
2013 27.9955 26.7224 31.8681 24.5183 31.8681 19.82%
2012 23.8205 21.4444 26.7780 20.5669 26.5974 25.67%
2011 20.4188 18.2142 21.9583 17.5188 21.1650 15.91%
2010 17.0854 18.9229 19.6495 13.6908 18.2594 -2.90%
2009 15.6948 16.5700 19.0565 12.1692 18.8053 13.98%
2008 20.9688 25.5277 26.6110 14.3304 16.4981 -36.49%
2007 23.4175 21.6566 26.9535 20.8530 25.9791 19.32%
2006 16.8523 14.3757 22.1873 14.0192 21.7735 55.50%
2005 13.3657 13.0568 14.5741 12.5463 14.0019 6.30%
2004 10.9662 9.6780 13.1803 9.3522 13.1721 38.28%
2003 8.3868 8.9893 9.5256 7.4655 9.5256 2.97%
2002 8.5102 7.6244 9.2508 7.5420 9.2508 24.09%
2001 8.9868 10.7591 11.0531 7.3698 7.4547 -30.14%
2000 9.7001 8.8503 11.1475 7.8479 10.6709 21.55%
Sector Industry Market Cap Revenue
Utilities Utility - Electric Power Distribution $66.075B $24.950B
NATIONAL GRID -ADR is an international energy delivery business, whose principal activities are in the regulated electricity and gas industries. They own and operate the high-voltage electricity transmission network in England and Wales, and Britain's natural gas transportation system. In the US they are one of the top ten electricity companies, with the largest electricity transmission and distribution network in the New England/New York region.
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CenterPoint Energy (CNP) United States $24.053B 23.03
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Eversource Energy (ES) United States $22.870B 13.56
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TransAlta (TAC) Canada $2.638B 0.00
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