NRG Energy (NRG) - Market capitalization

Market cap: NZ$56.77 Billion

As of December 2025 NRG Energy has a market cap of NZ$56.77 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	NZ$56.77 B	71.91%
2024	NZ$33.02 B	78.94%
2023	NZ$18.45 B	59.85%
2022	NZ$11.54 B	-25.23%
2021	NZ$15.44 B	21.5%
2020	NZ$12.70 B	-13.52%
2019	NZ$14.69 B	-12.24%
2018	NZ$16.74 B	31.88%
2017	NZ$12.69 B	127.43%
2016	NZ$5.58 B	3.33%
2015	NZ$5.40 B	-53.34%
2014	NZ$11.57 B	2.33%
2013	NZ$11.31 B	25.51%
2012	NZ$9.01 B	68.86%
2011	NZ$5.33 B	-14.72%
2010	NZ$6.26 B	-24.17%
2009	NZ$8.25 B	-11.88%
2008	NZ$9.36 B	-30.05%
2007	NZ$13.39 B	37.73%
2006	NZ$9.72 B	74.8%
2005	NZ$5.56 B	26.52%
2004	NZ$4.39 B	-34.38%
2003	NZ$6.70 B

End of Day market cap according to different sources

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

NZ$56.22 Billion

by Nasdaq

NZ$56.77 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Edison International EIX	NZ$38.34 B	-32.46%	🇺🇸 USA
Southern Company SO	NZ$160.47 B	182.66%	🇺🇸 USA
OGE Energy OGE	NZ$15.11 B	-73.38%	🇺🇸 USA
AES AES	NZ$17.14 B	-69.80%	🇺🇸 USA
Duke Energy DUK	NZ$153.01 B	169.51%	🇺🇸 USA
Exelon Corporation EXC	NZ$74.85 B	31.85%	🇺🇸 USA
Nextera Energy NEE	NZ$290.91 B	412.40%	🇺🇸 USA
Entergy ETR	NZ$71.68 B	26.27%	🇺🇸 USA
Sempra Energy SRE	NZ$99.88 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: NZ$56.77 Billion