National Grid Transco - 15 Year Stock Price History | NGG
Historical daily share price chart and data for National Grid Transco since 2011 adjusted for splits and dividends. The latest closing stock price for National Grid Transco as of September 15, 2026 is 74.93.
- The all-time high National Grid Transco stock closing price was 91.52 on February 25, 2026.
- The National Grid Transco 52-week high stock price is 94.64, which is 26.3% above the current share price.
- The National Grid Transco 52-week low stock price is 69.99, which is 6.6% below the current share price.
- The average National Grid Transco stock price for the last 52 weeks is 81.44.
| National Grid Transco Historical Annual Stock Price Data | ||||||
|---|---|---|---|---|---|---|
| Year | Average Stock Price | Year Open | Year High | Year Low | Year Close | Annual % Change |
| 2026 | 82.7906 | 76.6838 | 91.5236 | 74.9300 | 74.9300 | -0.58% |
| 2025 | 66.6106 | 55.5794 | 75.7776 | 52.3962 | 75.3684 | 35.88% |
| 2024 | 57.0753 | 56.0369 | 64.7281 | 47.9974 | 55.4674 | -1.26% |
| 2023 | 52.2195 | 47.4135 | 58.1754 | 46.6885 | 56.1773 | 18.82% |
| 2022 | 51.1420 | 54.1377 | 59.9027 | 36.4202 | 47.2803 | -12.68% |
| 2021 | 46.2231 | 42.4579 | 54.9838 | 39.7349 | 54.1452 | 29.02% |
| 2020 | 40.6416 | 42.0607 | 46.3855 | 30.5976 | 41.9673 | -0.75% |
| 2019 | 35.6268 | 31.0124 | 42.4520 | 31.0124 | 42.2833 | 38.53% |
| 2018 | 33.6933 | 35.4083 | 36.5434 | 29.7210 | 30.5225 | -13.75% |
| 2017 | 36.6877 | 33.5500 | 43.2771 | 33.0614 | 35.3903 | 4.31% |
| 2016 | 38.8259 | 38.3646 | 42.6295 | 32.9567 | 33.9281 | -12.33% |
| 2015 | 36.9213 | 37.1200 | 39.6644 | 33.5110 | 38.6985 | 3.19% |
| 2014 | 36.1822 | 31.6708 | 39.4924 | 31.1786 | 37.5021 | 16.64% |
| 2013 | 28.2374 | 26.9469 | 32.1532 | 24.7243 | 32.1532 | 19.88% |
| 2012 | 24.0199 | 21.6233 | 27.0029 | 20.7385 | 26.8208 | 25.67% |
| Sector | Industry | Market Cap | Revenue |
|---|---|---|---|
| Oils/Energy | Other Alternate Energy | $74.598B | $23.707B |
| 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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