National Grid PLC (NEWEN) stock
NEWENOTCNatural Gas TransmissionFiscal year ends March 31Also trades as NGG, NGGTF, NMKBP, NMKCP, NMPWP
$100.29+0.00 (0.00%)
Close on Oct 19, 2026Market cap $104.28BP/E 23.0Yield –
National Grid market cap
Market capitalization is the share price multiplied by the number of shares outstanding.
National Grid's market cap was $78.59B on Oct 19, 2026, against $71.17B a year earlier. Over the last 5 years it ranged from $37.27B to $88.69B, with a median of $52.96B.
Market Cap at the end of each year
| Period | Period end | Value | Change |
|---|---|---|---|
| 2026 | Oct 19, 2026 | $78.59B | +7.4% |
| 2025 | Dec 31, 2025 | $73.16B | +53.6% |
| 2024 | Dec 31, 2024 | $47.63B | -11.8% |
| 2023 | Dec 29, 2023 | $54.02B | +23.8% |
| 2022 | Dec 30, 2022 | $43.62B | -14.8% |
| 2021 | Dec 31, 2021 | $51.20B | +24.7% |
| 2020 | Dec 31, 2020 | $41.06B | -3.7% |
| 2019 | Dec 31, 2019 | $42.63B | +27.8% |
| 2018 | Dec 31, 2018 | $33.36B | -25.0% |
| 2017 | Dec 29, 2017 | $44.46B | +0.6% |
| 2016 | Dec 30, 2016 | $44.21B | – |