NRG Energy (NRG) - Market capitalization

Market cap: C$41.55 Billion

As of December 2025 NRG Energy has a market cap of C$41.55 Billion. This makes NRG Energy the world's 775th 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	C$41.55 B	55.46%
2024	C$26.72 B	72.65%
2023	C$15.48 B	55.63%
2022	C$9.94 B	-26%
2021	C$13.44 B	14.96%
2020	C$11.69 B	-9.54%
2019	C$12.92 B	-15.52%
2018	C$15.30 B	34.96%
2017	C$11.33 B	118.16%
2016	C$5.19 B	1.31%
2015	C$5.12 B	-51.28%
2014	C$10.52 B	6.37%
2013	C$9.89 B	34.22%
2012	C$7.37 B	74%
2011	C$4.23 B	-12.21%
2010	C$4.82 B	-23.48%
2009	C$6.30 B	-4.55%
2008	C$6.61 B	-35.41%
2007	C$10.23 B	28.31%
2006	C$7.97 B	80.18%
2005	C$4.42 B	17.47%
2004	C$3.76 B	-33.3%
2003	C$5.65 B

End of Day market cap according to different sources

On Dec 18th, 2025 the market cap of NRG Energy was reported to be:

C$40.83 Billion

by Nasdaq

C$41.21 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Edison International EIX	C$31.88 B	-23.26%	🇺🇸 USA
Southern Company SO	C$129.35 B	211.33%	🇺🇸 USA
OGE Energy OGE	C$12.07 B	-70.93%	🇺🇸 USA
AES AES	C$13.25 B	-68.10%	🇺🇸 USA
Duke Energy DUK	C$123.89 B	198.17%	🇺🇸 USA
Exelon Corporation EXC	C$60.72 B	46.15%	🇺🇸 USA
Nextera Energy NEE	C$228.56 B	450.09%	🇺🇸 USA
Entergy ETR	C$56.36 B	35.65%	🇺🇸 USA
Sempra Energy SRE	C$78.25 B	88.35%	🇺🇸 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: C$41.55 Billion