National Grid PLC (LSE:NG) — Market Cap & Net Worth

$793.70 Million USD  · GBX6.52 Trillion GBX  · Rank #10195

Market Cap & Net Worth: National Grid PLC (NG)

National Grid PLC (LSE:NG) has a market capitalization of $793.70 Million (GBX6.52 Trillion) as of May 2, 2026. Listed on the LSE stock exchange, this UK-based company holds position #10195 globally and #33 in its home market, demonstrating a 2.93% increase in market value over the past year.

Market capitalization, also known as net worth in stock markets, is calculated by multiplying National Grid PLC's stock price GBX1312.20 by its total outstanding shares 4971291326 (4.97 Billion). Review debt load of National Grid PLC to assess the company's total debt and financial obligations.

National Grid PLC Market Cap History: 2015 to 2026

National Grid PLC's market capitalization history from 2015 to 2026. Data shows growth from $317.11 Million to $791.76 Million (9.41% CAGR).

Index Memberships

National Grid PLC is a constituent of 5 market indices:

Index Total Market Cap Weight (%) Rank by Market Cap
FTSE All-Share
FTAS
$61.87 Billion 1.28% #14 of 573
FTSE 350
FTLC
$61.29 Billion 1.29% #15 of 350
FTSE 100 Index (UK)
FTSE
$52.73 Billion 1.51% #12 of 100
STOXX Europe Large 200 EUR Price
LCXP
$7.08 Trillion 0.01% #125 of 182
STOXX Europe Large 200 Net Return
LCXR
$7.08 Trillion 0.01% #125 of 182

Weight: National Grid PLC's market cap as a percentage of total index value. Rank: Position among all constituents by market cap.

National Grid PLC Market Cap to Earnings & Revenue Ratios Timeline

This chart shows how National Grid PLC's valuation ratios have evolved. The Price to Sales (P/S) ratio compares market cap to revenue, while the Price to Earnings (P/E) ratio compares market cap to net income. Lower values may indicate a more undervalued company relative to its financial performance.

Latest Price to Sales (P/S) Ratio

0.04x

National Grid PLC's market cap is 0.04 times its annual revenue

Industry average: 0.52x Lower than industry average

Latest Price to Earnings (P/E) Ratio

0.24x

National Grid PLC's market cap is 0.24 times its annual earnings

Industry average: 4.50x Lower than industry average

What These Ratios Tell Investors:

  • Price to Sales (P/S) Ratio: Shows how much investors are paying for each dollar of the company's sales. Lower P/S ratios may indicate undervaluation.
  • Price to Earnings (P/E) Ratio: Shows how much investors are paying for each dollar of the company's earnings. This is one of the most common valuation metrics.
  • Trends in these ratios over time can indicate changing investor sentiment about the company's future growth prospects.
  • Industry comparison provides context for whether the company is valued higher or lower than peers.
Year Market Cap (USD) Revenue (USD) Net Income (USD) P/S Ratio P/E Ratio
2016 $338.05 Million $13.21 Billion $2.59 Billion 0.03x 0.13x
2017 $324.93 Million $15.04 Billion $7.79 Billion 0.02x 0.04x
2018 $301.09 Million $15.25 Billion $3.55 Billion 0.02x 0.08x
2019 $395.98 Million $14.93 Billion $1.51 Billion 0.03x 0.26x
2020 $383.74 Million $13.36 Billion $1.26 Billion 0.03x 0.30x
2021 $497.18 Million $13.66 Billion $1.64 Billion 0.04x 0.30x
2022 $492.31 Million $18.45 Billion $2.35 Billion 0.03x 0.21x
2023 $553.59 Million $21.66 Billion $7.80 Billion 0.03x 0.07x
2024 $574.62 Million $19.85 Billion $2.29 Billion 0.03x 0.25x
2025 $690.45 Million $18.38 Billion $2.90 Billion 0.04x 0.24x

Competitor Companies of NG by Market Capitalization

Companies near National Grid PLC in the global market cap rankings as of May 2, 2026.

Key companies related to National Grid PLC by market ranking:

  • Nextera Energy Inc (NYSE:NEE): Ranked #108 globally with a market cap of $195.35 Billion USD.
  • Duke Energy Corporation (NYSE:DUK): Ranked #243 globally with a market cap of $100.82 Billion USD.
  • Southern Company (NYSE:SO): Ranked #251 globally with a market cap of $97.89 Billion USD.
  • National Grid PLC ADR (NYSE:NGG): Ranked #299 globally with a market cap of $86.46 Billion USD.
Market capitalization comparison (in billions USD)
Rank Company Symbol Market Cap Price
#108 Nextera Energy Inc NYSE:NEE $195.35 Billion $97.88
#243 Duke Energy Corporation NYSE:DUK $100.82 Billion $129.55
#251 Southern Company NYSE:SO $97.89 Billion $96.70
#299 National Grid PLC ADR NYSE:NGG $86.46 Billion $86.96

National Grid PLC Historical Marketcap From 2015 to 2026

Between 2015 and today, National Grid PLC's market cap moved from $317.11 Million to $ 791.76 Million, with a yearly change of 9.41%.

Year Market Cap Change (%)
2026 GBX791.76 Million +14.67%
2025 GBX690.45 Million +20.16%
2024 GBX574.62 Million +3.80%
2023 GBX553.59 Million +12.45%
2022 GBX492.31 Million -0.98%
2021 GBX497.18 Million +29.56%
2020 GBX383.74 Million -3.09%
2019 GBX395.98 Million +31.51%
2018 GBX301.09 Million -7.34%
2017 GBX324.93 Million -3.88%
2016 GBX338.05 Million +6.60%
2015 GBX317.11 Million --

End of Day Market Cap According to Different Sources

On May 1st, 2026 the market cap of National Grid PLC was reported to be:

Source Market Cap
Yahoo Finance $793.70 Million USD
MoneyControl $793.70 Million USD
MarketWatch $793.70 Million USD
marketcap.company $793.70 Million USD
Reuters $793.70 Million USD

Market cap values may vary slightly between sources due to differences in calculation methods, timing, and data refresh rates.

About National Grid PLC

LSE:NG UK Utilities - Regulated Electric
Market Cap
$793.70 Million
GBX6.52 Trillion GBX
Market Cap Rank
#10195 Global
#33 in UK
Share Price
GBX1312.20
Change (1 day)
+2.53%
52-Week Range
GBX1006.50 - GBX1400.00
All Time High
GBX1400.00
About

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 dis… Read more