National Grid plc (NGG)

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.

Ticker
NGG
Exchange
NYSE
Sector
Utilities
Industry
Utilities - Regulated Electric
52-week range
$73.37 - $94.64

Valuation

Share price
$83.15 (close of Nov 6, 2026)
P/E (TTM)
18.87x
Price to book
1.63x
Price to free cash flow
-29.75x

Price performance

PeriodChange
1 day-3.22%
5 days-0.95%
1 month+8.20%
3 months+3.41%
6 months-5.35%
Year to date+7.50%
1 year+8.99%
3 years+34.68%
5 years+29.09%
10 years+19.38%
All time+61.64%

Short interest

As of
Oct 15, 2026
Short % of float
0.11%
Shares short
1.07M
Days to cover
1.26
Change since prior report
-3.73%
Source
FINRA consolidated short interest

Profitability and growth

Return on equity
8.24%
Return on invested capital
5.22%
Return on assets
2.99%
Return on capital employed
5.51%
Gross margin
30.92%
Net margin
18.32%
EBITDA margin
30.71%
Revenue growth
-3.76%
Net income growth
11.68%

Cash flow and balance sheet

Free cash flow yield (TTM)
-3.36%
Current ratio
0.76x
Net debt to EBITDA
5.74x

Latest reported year

Period end
Mar 31, 2026
Fiscal year
2026
Shares outstanding
989.20M

Margins and returns by year

Period endGross marginNet marginReturn on equityReturn on capital
2026-03-3130.92%18.32%8.24%5.22%
2025-03-3127.08%15.79%7.67%4.82%
2024-03-3122.71%11.54%7.66%4.73%
2023-03-3122.63%36.00%26.38%5.52%
2022-03-3123.75%12.75%9.86%5.39%
2021-03-3117.66%12.00%8.26%4.25%
2020-03-3117.13%9.46%6.39%4.04%
2019-03-3119.35%10.12%7.72%5.74%
2018-03-3122.99%23.28%18.65%8.48%
2017-03-3121.43%51.85%38.24%6.51%

Investor relations

Past earnings dates

ReportedFiscal periodEPS estimate
2023-05-18--
2022-05-19--
2007-12-31--
2007-06-30--
2006-12-31--
2006-06-30--
2006-03-31--
2005-12-31--

Filings and sources

Company website
nationalgrid.com
SEC filings
10-K, 10-Q and 8-K on EDGAR
Earnings calendar
All upcoming reports

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Price-to-earnings ratio · Short interest · Discounted cash flow · Free cash flow · Earnings per share · Return on equity · Gross margin vs net margin · Reading a balance sheet · Debt and leverage · Dividend yield · Insider transactions and Form 4 · How to read a stock chart

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