National Grid PLC Market Cap ($767.28 Million)

$767.28 Million USD · GBX6.31 Trillion GBX · Rank #9719

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

National Grid PLC market cap. National Grid PLC (LSE:NG) has a market capitalization of $767.28 Million (GBX6.31 Trillion) as of October 31, 2026. Listed on the LSE stock exchange, this UK-based company holds position #9719 globally and #37 in its home market, demonstrating a 2.49% 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 GBX1254.50 by its total outstanding shares 5026834181 (5.03 Billion).

National Grid PLC Market Cap History (2015–2026)

National Grid PLC market cap history from 2015 to 2026. Data shows growth from $320.66 Million to $767.28 Million (8.52% CAGR). Check National Grid PLC (NG) stock price for real-time trading data and today's change.

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	$66.56 Billion	1.15%	#14 of 573
FTSE 350 FTLC	$66.49 Billion	1.15%	#15 of 350
FTSE 100 Index (UK) FTSE	$56.74 Billion	1.35%	#11 of 100
STOXX Europe Large 200 EUR Price LCXP	$7.24 Trillion	0.01%	#124 of 182
STOXX Europe Large 200 Net Return LCXR	$7.24 Trillion	0.01%	#124 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. Also see National Grid PLC cash flow conversion for how efficiently the company converts equity into cash flow.

Latest Price to Sales (P/S) Ratio

0.04x

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

Industry average: 0.19x 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: 1.19x 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
2017	$328.56 Million	$15.04 Billion	$7.79 Billion	0.02x	0.04x
2018	$304.46 Million	$15.25 Billion	$3.55 Billion	0.02x	0.09x
2019	$400.40 Million	$14.93 Billion	$1.51 Billion	0.03x	0.26x
2020	$388.03 Million	$13.36 Billion	$1.26 Billion	0.03x	0.31x
2021	$502.73 Million	$13.66 Billion	$1.64 Billion	0.04x	0.31x
2022	$497.81 Million	$18.45 Billion	$2.35 Billion	0.03x	0.21x
2023	$559.78 Million	$21.66 Billion	$7.80 Billion	0.03x	0.07x
2024	$581.04 Million	$19.85 Billion	$2.29 Billion	0.03x	0.25x
2025	$698.16 Million	$18.38 Billion	$2.90 Billion	0.04x	0.24x
2026	$767.28 Million	$17.69 Billion	$3.24 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 October 31, 2026. See National Grid PLC (NG) balance sheet quality index to understand what proportion of total assets are financed by equity.

Key companies related to National Grid PLC by market ranking:

Nextera Energy Inc (NYSE:NEE): Ranked #126 globally with a market cap of $174.34 Billion USD.
Southern Company (NYSE:SO): Ranked #263 globally with a market cap of $97.89 Billion USD.
Duke Energy Corporation (NYSE:DUK): Ranked #265 globally with a market cap of $97.35 Billion USD.
National Grid PLC ADR (NYSE:NGG): Ranked #312 globally with a market cap of $86.46 Billion USD.

Market capitalization comparison (in billions USD)

Rank	Company	Symbol	Market Cap	Price
#126	Nextera Energy Inc	NYSE:NEE	$174.34 Billion	$83.71
#263	Southern Company	NYSE:SO	$97.89 Billion	$93.71
#265	Duke Energy Corporation	NYSE:DUK	$97.35 Billion	$127.39
#312	National Grid PLC ADR	NYSE:NGG	$86.46 Billion	$86.96

Market Capitalization of National Grid PLC (2015–2026)

Market capitalization of National Grid PLC from 2015 to today. Between 2015 and today, National Grid PLC's market cap moved from $320.66 Million to $ 767.28 Million, with a yearly change of 8.52%.

Year	Market Cap	Change (%)
2026	GBX767.28 Million	+9.90%
2025	GBX698.16 Million	+20.16%
2024	GBX581.04 Million	+3.80%
2023	GBX559.78 Million	+12.45%
2022	GBX497.81 Million	-0.98%
2021	GBX502.73 Million	+29.56%
2020	GBX388.03 Million	-3.09%
2019	GBX400.40 Million	+31.51%
2018	GBX304.46 Million	-7.34%
2017	GBX328.56 Million	-3.88%
2016	GBX341.83 Million	+6.60%
2015	GBX320.66 Million	--

End of Day Market Cap According to Different Sources

On Oct 31st, 2026 the market cap of National Grid PLC was reported to be:

Source	Market Cap
Yahoo Finance	$767.28 Million USD
MoneyControl	$767.28 Million USD
MarketWatch	$767.28 Million USD
marketcap.company	$767.28 Million USD
Reuters	$767.28 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

$767.28 Million

GBX6.31 Trillion GBX

Market Cap Rank

#9719 Global

#37 in UK

Share Price

GBX1254.50

Change (1 day)

+0.00%

52-Week Range

GBX1105.00 - GBX1400.00

All Time High

GBX1400.00