NRG Energy (NRG) - Market capitalization

Market cap: S$40.85 Billion

As of December 2025 NRG Energy has a market cap of S$40.85 Billion. This makes NRG Energy the world's 740th 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 NRG Energy from 2003 to 2025

End of year Market Cap

Year	Marketcap	Change
2025	S$40.85 B	61.38%
2024	S$25.31 B	64.24%
2023	S$15.41 B	56.85%
2022	S$9.82 B	-31.08%
2021	S$14.25 B	17.54%
2020	S$12.13 B	-9.08%
2019	S$13.34 B	-13.04%
2018	S$15.34 B	27.23%
2017	S$12.06 B	115.49%
2016	S$5.59 B	7%
2015	S$5.23 B	-56.37%
2014	S$11.98 B	1.76%
2013	S$11.78 B	29.9%
2012	S$9.06 B	68.07%
2011	S$5.39 B	-13.27%
2010	S$6.22 B	-26.1%
2009	S$8.41 B	8.28%
2008	S$7.77 B	-47.34%
2007	S$14.76 B	40.53%
2006	S$10.50 B	65.93%
2005	S$6.33 B	23.68%
2004	S$5.11 B	-30.83%
2003	S$7.40 B

End of Day market cap according to different sources

On Dec 6th, 2025 the market cap of NRG Energy was reported to be:

S$40.48 Billion

by Nasdaq

S$40.85 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Edison International EIX	S$28.96 B	-29.10%	🇺🇸 USA
Southern Company SO	S$123.11 B	201.32%	🇺🇸 USA
OGE Energy OGE	S$11.58 B	-71.64%	🇺🇸 USA
AES AES	S$12.84 B	-68.56%	🇺🇸 USA
Duke Energy DUK	S$117.42 B	187.39%	🇺🇸 USA
Exelon Corporation EXC	S$57.34 B	40.34%	🇺🇸 USA
Nextera Energy NEE	S$224.35 B	449.10%	🇺🇸 USA
Entergy ETR	S$54.52 B	33.46%	🇺🇸 USA
Sempra Energy SRE	S$76.68 B	87.67%	🇺🇸 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 NRG Energy (NRG)

Market cap: S$40.85 Billion