Observatory · observe first
Follow the allocation change
Matched S&P 500 members → sector → industry → sub-industry → company. Each step uses the same percentage points.
Historical time machine
Historical observation
20182026
1 · Sector
Weight and 12M allocation change
2 · Industry
Inside Utilities
3 · Sub-industry
Inside Electric Utilities
Electric Utilities · weight
1.47%
Industry change · 12M
+0.07 pp
Electric Utilities · contribution
+0.071 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Sep 2024 · sorted by absolute contribution to 12-month change
| Company | Country | Market cap | Universe weight | 3M contribution | 12M contribution | 12M price return | Above 6M weight average |
|---|---|---|---|---|---|---|---|
| Vistra Corp. → VST | United States | $40.7bn | 0.095% | +0.039 pp | +0.095 pp | +262.3% | Yes |
| Constellation Energy → CEG | United States | $81.3bn | 0.189% | +0.071 pp | +0.072 pp | +140.2% | Yes |
| Exelon → EXC | United States | $40.6bn | 0.094% | +0.030 pp | -0.031 pp | +11.7% | Yes |
| Duke Energy → DUK | United States | $89.0bn | 0.207% | +0.062 pp | -0.020 pp | +36.2% | Yes |
| WEC Energy Group → WEC | United States | $30.4bn | 0.071% | +0.024 pp | -0.014 pp | +24.2% | Yes |
| Eversource Energy → ES | United States | $24.3bn | 0.057% | +0.019 pp | -0.011 pp | +22.5% | Yes |
| Public Service Enterprise Group → PEG | United States | $44.4bn | 0.103% | +0.035 pp | +0.009 pp | +62.2% | Yes |
| FirstEnergy → FE | United States | $25.5bn | 0.059% | +0.018 pp | -0.006 pp | +35.5% | Yes |
| Southern Company → SO | United States | $98.7bn | 0.230% | +0.071 pp | -0.006 pp | +44.7% | Yes |
| Evergy → EVRG | United States | $14.3bn | 0.033% | +0.010 pp | -0.006 pp | +28.3% | Yes |
| Alliant Energy → LNT | United States | $15.6bn | 0.036% | +0.012 pp | -0.005 pp | +30.0% | Yes |
| Edison International → EIX | United States | $33.6bn | 0.078% | +0.027 pp | -0.003 pp | +42.3% | Yes |
| American Electric Power → AEP | United States | $54.6bn | 0.127% | +0.040 pp | -0.002 pp | +42.2% | Yes |
| PPL Corporation → PPL | United States | $24.4bn | 0.057% | +0.019 pp | -0.001 pp | +45.5% | Yes |
| Entergy → ETR | United States | $14.1bn | 0.033% | +0.011 pp | +0.000 pp | +48.6% | Yes |
Company contributions use weights among matched S&P 500 members and add through each level without rescaling. Companies without matched shares and prices are omitted. These observations do not establish official index weights or actual fund flows.