NRG Energy (NRG) Market Cap 2003–2026

As of October 29, 2026, NRG Energy had a market cap of $20.51 billion, which increased by 0.59% compared to the previous trading day. Market capitalization, often referred to as market cap, represents the total value of a company's outstanding shares on the stock market and is a common measure of its overall size and valuation.

Data updated: Oct 29, 2026, 4:00 PM ET
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NRG Energy Inc. (NRG)

🌍 United States 📈 NYSE 🏭 Utilities 🏢 Electric Utilities
Latest Market Cap
$20.51B ▲ 0.59%
Start of 2026
$30.52B ▼ 32.80%
1 Year Ago
$33.49B ▼ 38.76%
All-Time High
$39.73B ▼ 48.38%


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Note: Each point on the chart represents the market capitalization at the end of the trading day.
Source: Data compiled from EDGAR filings, Bloomberg and Yahoo Finance.

📈 NRG Energy Market Cap History by Year and Month

NRG Energy Market Cap History by Year and Month
Year / MonthMarket Cap% Change
2026$20.51B▼ 32.80%
$20.51B▲ 1.94%
$20.12B▼ 13.13%
$23.16B▼ 18.94%
$28.57B▼ 8.08%
$31.08B▲ 9.86%
$28.29B▼ 14.38%
$33.04B▲ 6.44%
$31.04B▼ 19.21%
$38.42B▲ 31.35%
$29.25B▼ 4.16%
2025$30.52B▲ 70.33%
2024$17.918B▲ 53.51%
2023$11.672B▲ 59.21%
2022$7.331B▼ 30.19%
All market cap values reflect closing prices for the period shown.

📊 NRG Energy Market Cap and Other Industry Peers

Below are selected companies from the Electric Utilities sector / subsector:

  1. $98.2B
  2. $93.93B
  3. $70.43B
  4. $51.32B
  5. $49.35B
  6. $47.38B
  7. $29.14B
  8. $27.1B
  9. $26.81B
  10. $25.57B
  11. $22.85B
  12. $20.51B
  13. $19.69B
  14. $18.3B
  15. $12.92B
  16. $10.21B
  17. $8.06B
  18. $6.51B
  19. $5.12B
  20. $4.96B

Data reflect the most recent market capitalization values available.

Note: Market capitalization figures are based on available sources and may differ slightly from actual values, particularly for historical data.