Universe›Utilities›Independent Power Producers & Energy Traders›Independent Power Producers & Energy Traders›NRG Energy
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NRG Energy
NRG · United States · Independent Power Producers & Energy Traders · matched S&P 500 member. Follow its market-weight contribution.
Historical time machine
Historical observation
20182026
Universe weight
0.060%
12M weight contribution
+0.018 pp
3M weight contribution
-0.003 pp
12M price return
+78.9%
Share of matched S&P 500 members
Monthly observations through Dec 2025
Company price index
A separate dimension from market allocation
Historical observations
Most recent 24 observations at or before the selected month
| Month | Market cap | Universe weight | 12M weight change | 12M return | Above 6M weight average |
|---|---|---|---|---|---|
| Dec 2025 | $30.5bn | 0.060% | +0.018 pp | +78.9% | No |
| Nov 2025 | $32.5bn | 0.064% | +0.018 pp | +69.1% | No |
| Oct 2025 | $33.2bn | 0.065% | +0.021 pp | +93.1% | No |
| Sep 2025 | $31.3bn | 0.063% | +0.019 pp | +80.5% | No |
| Aug 2025 | $28.2bn | 0.058% | +0.016 pp | +73.9% | No |
| Jul 2025 | $32.7bn | 0.069% | +0.041 pp | +126.5% | Yes |
| Jun 2025 | $31.4bn | 0.068% | +0.037 pp | +110.0% | Yes |
| May 2025 | $30.5bn | 0.069% | +0.037 pp | +96.0% | Yes |
| Apr 2025 | $21.7bn | 0.052% | +0.008 pp | +53.0% | Yes |
| Mar 2025 | $18.9bn | 0.045% | +0.006 pp | +43.8% | Yes |
| Feb 2025 | $20.9bn | 0.047% | +0.014 pp | +94.9% | Yes |
| Jan 2025 | $20.8bn | 0.046% | +0.011 pp | +96.2% | Yes |
| Dec 2024 | $18.3bn | 0.041% | +0.007 pp | +78.6% | Yes |
| Nov 2024 | $20.6bn | 0.045% | +0.012 pp | +117.4% | Yes |
| Oct 2024 | $18.7bn | 0.044% | +0.011 pp | +117.3% | Yes |
| Sep 2024 | $18.8bn | 0.044% | +0.014 pp | +143.1% | Yes |
| Aug 2024 | $17.5bn | 0.042% | +0.015 pp | +132.7% | Yes |
| Jul 2024 | $15.7bn | 0.028% | +0.009 pp | +102.3% | No |
| Jun 2024 | $16.2bn | 0.030% | +0.011 pp | +115.0% | No |
| May 2024 | $16.9bn | 0.032% | +0.013 pp | +147.6% | No |
| Apr 2024 | $15.1bn | 0.044% | +0.017 pp | +119.6% | Yes |
| Mar 2024 | $14.1bn | 0.039% | +0.012 pp | +105.0% | Yes |
| Feb 2024 | $11.5bn | 0.033% | +0.006 pp | +75.2% | No |
| Jan 2024 | $12.0bn | 0.036% | +0.009 pp | +61.0% | Yes |
Its weight is estimated market cap divided by the total estimated market cap of matched S&P 500 members for the month. This is not an official float-adjusted S&P index weight.