Market Cap

NRG Energy, Inc. Market Capitalization:

$32.14 Billion

USD as of Jan. 1, 2026

business NRG Energy, Inc. Company Profile

NRG Energy, Inc. Main Stock Listing

NYSE: NRG

Market Capitalization History of NRG Energy, Inc.

Market capitalizations are calculated from the opening stock price at the beginning of each month.

Top Competitors by Market Capitalization

Industry: Utilities—Independent Power Producers
Company Market Cap (USD)
Siemens Energy $123.41 B
China Yangtze Power Co. Ltd $95.15 B
Vistra Corp. $55.98 B
CGN Power Co. Ltd $27.14 B
China National Nuclear Power Co. Ltd $25.54 B
Sector: Utilities
Company Market Cap (USD)
NextEra Energy $168.55 B
Iberdrola, SA $146.18 B
Siemens Energy $123.41 B
Constellation Energy $114.42 B
Enel SpA $106.27 B

Yearly evolution of NRG Energy, Inc. market cap

Date Market Cap YoY Change
Jan. 1, 2026 $32.14 B 43.54%
Jan. 1, 2025 $22.39 B 91.95%
Jan. 1, 2024 $11.67 B 59.48%
Jan. 1, 2023 $7.31 B -19.87%
Jan. 1, 2022 $9.13 B -3.57%
Jan. 1, 2021 $9.47 B 12.25%
Jan. 1, 2020 $8.43 B -9.83%
Jan. 1, 2019 $9.35 B 57.29%
Jan. 1, 2018 $5.95 B 57.26%
Jan. 1, 2017 $3.78 B 55.45%
Jan. 1, 2016 $2.43 B -56.85%
Jan. 1, 2015 $5.64 B -11.45%
Jan. 1, 2014 $6.37 B 16.04%
Jan. 1, 2013 $5.49 B 42.18%
Jan. 1, 2012 $3.86 B -18.65%
Jan. 1, 2011 $4.74 B -13.94%
Jan. 1, 2010 $5.51 B 3.21%
Jan. 1, 2009 $5.34 B -39.47%
Jan. 1, 2008 $8.82 B 28.78%
Jan. 1, 2007 $6.85 B 24.16%
Jan. 1, 2006 $5.52 B 37.91%
Jan. 1, 2005 $4.00 B 75.00%
Jan. 1, 2004 $2.29 B

Market capitalization is calculated from the opening stock price at the beginning of each year.

NRG Energy, Inc. Categories

United States languages Utilities languages Utilities—Independent Power Producers
United States Utilities United States Utilities—Independent Power Producers

Stocks & Indices

NRG Energy, Inc. has the following listings and related stock indices.


Stock: NYSE: NRG

Stock: Bovespa: N1RG34

Stock: FSX: NRA

What is a company's market capitalization?

The market capitalization of a company, more simply referred to as "market cap", is the total market value of a publicly traded company's outstanding shares. It is often considered as a key indicator of what a company is worth.