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
1.71%
Industry change · 12M
+0.29 pp
Electric Utilities · contribution
+0.295 pp
Company participation
7%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Sep 2022 · 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 |
|---|---|---|---|---|---|---|---|
| Constellation Energy → CEG | United States | $27.2bn | 0.107% | +0.034 pp | +0.107 pp | +0.0% | Yes |
| Southern Company → SO | United States | $72.3bn | 0.284% | -0.011 pp | +0.054 pp | +14.1% | No |
| American Electric Power → AEP | United States | $44.4bn | 0.175% | -0.017 pp | +0.032 pp | +10.1% | No |
| Exelon → EXC | United States | $36.7bn | 0.144% | -0.028 pp | +0.026 pp | +11.9% | No |
| Duke Energy → DUK | United States | $71.6bn | 0.281% | -0.040 pp | +0.018 pp | -1.0% | No |
| FirstEnergy → FE | United States | $21.1bn | 0.083% | -0.002 pp | +0.015 pp | +7.9% | No |
| WEC Energy Group → WEC | United States | $28.2bn | 0.111% | -0.013 pp | +0.013 pp | +4.4% | No |
| Edison International → EIX | United States | $21.6bn | 0.085% | -0.009 pp | +0.011 pp | +6.5% | No |
| Eversource Energy → ES | United States | $27.0bn | 0.106% | -0.007 pp | +0.007 pp | -1.8% | No |
| Entergy → ETR | United States | $10.2bn | 0.040% | -0.004 pp | +0.005 pp | +5.0% | No |
| Evergy → EVRG | United States | $13.6bn | 0.054% | -0.005 pp | +0.004 pp | -1.1% | No |
| Alliant Energy → LNT | United States | $13.3bn | 0.052% | -0.005 pp | +0.003 pp | -2.6% | No |
| Public Service Enterprise Group → PEG | United States | $28.1bn | 0.110% | -0.013 pp | +0.002 pp | -4.7% | No |
| PPL Corporation → PPL | United States | $18.7bn | 0.073% | -0.004 pp | -0.002 pp | -5.5% | No |
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.