National Grid Transco - 20 Year Stock Price History | NGG

Historical daily share price chart and data for National Grid Transco since 2005 adjusted for splits and dividends. The latest closing stock price for National Grid Transco as of January 31, 2025 is 61.40.
  • The all-time high National Grid Transco stock closing price was 72.14 on May 16, 2024.
  • The National Grid Transco 52-week high stock price is 73.40, which is 19.5% above the current share price.
  • The National Grid Transco 52-week low stock price is 55.13, which is 10.2% below the current share price.
  • The average National Grid Transco stock price for the last 52 weeks is 64.18.
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 59.4185 59.5400 61.7400 56.1300 61.4000 3.33%
2024 63.9411 66.7417 72.1444 54.6176 59.4200 -11.19%
2023 62.1984 56.4764 69.2954 55.6091 66.9090 18.81%
2022 60.9306 64.4946 71.3623 43.3967 56.3177 -12.69%
2021 55.0688 50.5730 65.5024 47.3297 64.5035 29.04%
2020 48.4255 50.1356 55.2907 36.4717 49.9887 -0.82%
2019 42.4736 36.9714 50.6020 36.9714 50.4010 38.51%
2018 40.1614 42.1948 43.5668 35.4318 36.3874 -13.72%
2017 43.7029 40.0333 48.4826 39.4503 42.1733 4.17%
2016 46.3276 45.7727 50.8701 39.3254 40.4845 -12.32%
2015 44.0466 44.2750 47.3259 39.9703 46.1710 3.22%
2014 43.6528 38.8885 47.1047 38.2841 44.7308 13.30%
2013 34.6605 33.0619 39.4809 30.3349 39.4809 19.98%
2012 29.4653 26.5150 33.1306 25.4300 32.9072 25.75%
2011 25.2413 22.5043 27.1540 21.6452 26.1695 16.00%
2010 21.1245 23.4238 24.2725 16.9472 22.5602 -3.08%
2009 19.4141 20.4741 23.5880 15.0364 23.2783 14.19%
2008 25.9090 31.5383 32.8768 17.7067 20.3852 -36.49%
2007 28.9330 26.7506 33.2999 25.7581 32.0960 19.34%
2006 20.8169 17.7558 27.4061 17.3154 26.8950 55.52%
Sector Industry Market Cap Revenue
Utilities Utility - Electric Power Distribution $59.385B $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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