Observatory · observe first
Constellation Energy
CEG · United States · Electric Utilities · matched S&P 500 member. Follow its market-weight contribution.
Historical time machine
Latest available · not live
20182026
Universe weight
0.151%
12M weight contribution
-0.055 pp
3M weight contribution
-0.005 pp
12M price return
-22.4%
Share of matched S&P 500 members
Monthly observations through Sep 2026
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 |
|---|---|---|---|---|---|
| Sep 2026 | $90.0bn | 0.151% | -0.055 pp | -22.4% | No |
| Aug 2026 | $97.4bn | 0.162% | -0.037 pp | -10.3% | Yes |
| Jul 2026 | $94.9bn | 0.166% | -0.064 pp | -24.1% | Yes |
| Jun 2026 | $89.7bn | 0.156% | -0.062 pp | -22.6% | No |
| May 2026 | $103.9bn | 0.180% | -0.037 pp | -5.5% | Yes |
| Apr 2026 | $113.3bn | 0.154% | -0.014 pp | +40.8% | No |
| Mar 2026 | $101.1bn | 0.147% | -0.003 pp | +39.2% | No |
| Feb 2026 | $119.4bn | 0.164% | -0.011 pp | +32.4% | No |
| Jan 2026 | $87.7bn | 0.168% | -0.041 pp | -5.9% | No |
| Dec 2025 | $110.3bn | 0.216% | +0.057 pp | +58.8% | No |
| Nov 2025 | $113.8bn | 0.224% | +0.046 pp | +42.8% | Yes |
| Oct 2025 | $117.8bn | 0.231% | +0.037 pp | +44.2% | Yes |
| Sep 2025 | $102.8bn | 0.206% | +0.017 pp | +27.3% | No |
| Aug 2025 | $96.2bn | 0.199% | +0.051 pp | +57.5% | Yes |
| Jul 2025 | $109.0bn | 0.230% | +0.123 pp | +84.5% | Yes |
| Jun 2025 | $101.2bn | 0.218% | +0.100 pp | +62.2% | Yes |
| May 2025 | $96.0bn | 0.217% | +0.087 pp | +41.9% | Yes |
| Apr 2025 | $69.9bn | 0.168% | -0.003 pp | +21.0% | No |
| Mar 2025 | $63.1bn | 0.150% | -0.013 pp | +9.8% | No |
| Feb 2025 | $78.4bn | 0.175% | +0.022 pp | +49.8% | No |
| Jan 2025 | $93.8bn | 0.209% | +0.093 pp | +147.6% | Yes |
| Dec 2024 | $70.0bn | 0.159% | +0.047 pp | +92.7% | No |
| Nov 2024 | $80.2bn | 0.177% | +0.057 pp | +113.4% | Yes |
| Oct 2024 | $82.2bn | 0.193% | +0.070 pp | +134.7% | 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.