NYSE:NGG | Market Cap | NATIONAL GRID PLC

Historical market capitalization from contemporaneous retained split-adjusted close and filed split-adjusted shares outstanding.

Available history
2018-03-31 to 2026-09-03
Data captured

Historical Market Cap

DateMarket Cap
2026-09-03$406.25B
2026-03-31$439.83B
2025-03-31$336.75B
2024-03-31$270.64B
2023-03-31$267.23B
2022-03-31$300.11B
2021-03-31$226B
2020-03-31$220.27B
2019-03-31$205.91B
2018-03-31$205.28B