NRG Energy (NRG) - Market capitalization

Market cap: A$49.50 Billion

As of December 2025 NRG Energy has a market cap of A$49.50 Billion. This makes NRG Energy the world's 721th 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	A$49.50 B	65.3%
2024	A$29.94 B	74.79%
2023	A$17.13 B	59.03%
2022	A$10.77 B	-25.96%
2021	A$14.54 B	21.99%
2020	A$11.92 B	-15.64%
2019	A$14.13 B	-11.34%
2018	A$15.94 B	38.04%
2017	A$11.55 B	115.3%
2016	A$5.36 B	5.69%
2015	A$5.07 B	-54.21%
2014	A$11.08 B	6.34%
2013	A$10.42 B	46.07%
2012	A$7.13 B	75.61%
2011	A$4.06 B	-14.54%
2010	A$4.75 B	-28.77%
2009	A$6.67 B	-13.37%
2008	A$7.70 B	-34.33%
2007	A$11.73 B	35.03%
2006	A$8.69 B	67.24%
2005	A$5.19 B	28.17%
2004	A$4.05 B	-30.81%
2003	A$5.86 B

End of Day market cap according to different sources

On Dec 11th, 2025 the market cap of NRG Energy was reported to be:

A$49.02 Billion

by Nasdaq

A$49.50 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Edison International EIX	A$33.43 B	-32.46%	🇺🇸 USA
Southern Company SO	A$139.91 B	182.66%	🇺🇸 USA
OGE Energy OGE	A$13.17 B	-73.38%	🇺🇸 USA
AES AES	A$14.95 B	-69.80%	🇺🇸 USA
Duke Energy DUK	A$133.40 B	169.51%	🇺🇸 USA
Exelon Corporation EXC	A$65.26 B	31.85%	🇺🇸 USA
Nextera Energy NEE	A$253.64 B	412.40%	🇺🇸 USA
Entergy ETR	A$62.50 B	26.27%	🇺🇸 USA
Sempra Energy SRE	A$87.08 B	75.93%	🇺🇸 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: A$49.50 Billion