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Daily valuation snapshot
National Grid PLC: source evidence dated 2026-10-09.
- Daily close (USD)
- $76.48
- Market capitalization (USD)
- $79,523,425,082.24
- Price / earnings (TTM)
- 18.29
- Price / book
- 1.53
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Company overview
National Grid plc engages in the transmission and distribution of electricity and gas. It operates through UK Electricity Transmission, UK Electricity Distribution, New England, New York, National Grid Ventures, and Other segments. The UK Electricity Transmission segment provides electricity transmission networks in England and Wales. The UK Electricity Distribution segment offers electricity distribution services in east and west Midlands, Southwest of England, and South Wales. The New England segment provides electricity and gas supply and distribution, and high-voltage electricity transmission services in New England. The New York segment offers electricity and gas distribution, and electricity transmission services in New York. The National Grid Ventures segment provides transmission services through electricity interconnectors and LNG importation at the Isle of Grain. The Other segment engages in the leasing and sale of commercial property, as well as insurance activities in the United Kingdom. The company was founded in 1990 and is headquartered in London, the United Kingdom.
Daily valuation snapshot
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These values come from the daily market snapshot dated 2026-10-09. TTM means trailing twelve months. Use the market date when comparing NGG with another company.
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| Daily close (USD) | $76.48 |
| Market capitalization (USD) | $79,523,425,082.24 |
| Price / earnings (TTM) | 18.29 |
| Price / book | 1.53 |
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Read NGG's valuation metrics
Company size
National Grid PLC's recorded market capitalization is $79,523,425,082.24. It measures the market value of the company's equity, rather than its revenue or cash balance.
Price relative to earnings
NGG's recorded P/E is 18.29: about $18.29 of share price for each $1 of trailing annual earnings per share. Compare that multiple with earnings growth and companies in the same business.
Price relative to book equity
NGG's recorded price-to-book ratio is 1.53. That compares its market equity value with recorded book equity. Examine its business and balance sheet to understand why those values differ.
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