PSEG (PEG) - Market capitalization

Market cap: £31.65 Billion

As of March 2026 PSEG has a market cap of £31.65 Billion. This makes PSEG the world's 571th most valuable company by market cap according to our data. The market capitalization, commonly called market cap, is the total market value of a publicly traded company's outstanding shares and is commonly used to measure how much a company is worth.

Market cap history of PSEG from 1996 to 2026

End of year Market Cap

Year	Marketcap	Change
2026	£31.65 B	6.25%
2025	£29.79 B	-11.63%
2024	£33.71 B	40.98%
2023	£23.91 B	-5.35%
2022	£25.26 B	1.09%
2021	£24.99 B	15.54%
2020	£21.63 B	-4.67%
2019	£22.69 B	9.82%
2018	£20.66 B	7.18%
2017	£19.28 B	7.18%
2016	£17.99 B	36.18%
2015	£13.21 B	-1.81%
2014	£13.45 B	36.93%
2013	£9.82 B	2.59%
2012	£9.57 B	-10.86%
2011	£10.74 B	3.05%
2010	£10.42 B	0.28%
2009	£10.39 B	3.22%
2008	£10.07 B	-19.89%
2007	£12.57 B	46.85%
2006	£8.56 B	-9.52%
2005	£9.46 B	47.38%
2004	£6.42 B	11.05%
2003	£5.78 B	28.21%
2002	£4.50 B	-24.71%
2001	£5.98 B	-11.6%
2000	£6.77 B	45.31%
1999	£4.66 B	-14.48%
1998	£5.45 B	21.37%
1997	£4.49 B	15.36%
1996	£3.89 B

End of Day market cap according to different sources

On Mar 17th, 2026 the market cap of PSEG was reported to be:

£31.63 Billion

by Nasdaq

£31.65 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Ameren AEE	£23.21 B	-26.66%	🇺🇸 USA
Consolidated Edison ED	£31.06 B	-1.85%	🇺🇸 USA
Exelon Corporation EXC	£38.30 B	21.01%	🇺🇸 USA
FirstEnergy FE	£22.15 B	-30.03%	🇺🇸 USA
NRG Energy NRG	£24.59 B	-22.30%	🇺🇸 USA
Southern Company SO	£82.32 B	160.06%	🇺🇸 USA
Duke Energy DUK	£77.38 B	144.43%	🇺🇸 USA
PPL PPL	£21.60 B	-31.74%	🇺🇸 USA
Xcel Energy XEL	£38.01 B	20.08%	🇺🇸 USA
Unitil Corporation UTL	£0.70 B	-97.76%	🇺🇸 USA

What is the market capitalization of a company?

The market capitalization sometimes referred as Marketcap, is the value of a publicly listed company.
In most cases it can be easily calculated by multiplying the share price with the amount of outstanding shares.

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Market capitalization of PSEG (PEG)

Market cap: £31.65 Billion