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
1.66%
Industry change · 12M
+0.87 pp
Electric Utilities · contribution
+0.870 pp
Company participation
93%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Mar 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 |
|---|---|---|---|---|---|---|---|
| Duke Energy → DUK | United States | $85.9bn | 0.289% | +0.031 pp | +0.144 pp | +20.2% | Yes |
| Southern Company → SO | United States | $76.9bn | 0.259% | +0.026 pp | +0.130 pp | +21.5% | Yes |
| Exelon → EXC | United States | $46.7bn | 0.157% | +0.028 pp | +0.098 pp | +57.7% | Yes |
| American Electric Power → AEP | United States | $50.3bn | 0.169% | +0.026 pp | +0.087 pp | +22.0% | Yes |
| Constellation Energy → CEG | United States | $18.4bn | 0.062% | +0.062 pp | +0.062 pp | +0.0% | Yes |
| Public Service Enterprise Group → PEG | United States | $35.1bn | 0.118% | +0.010 pp | +0.059 pp | +20.1% | Yes |
| FirstEnergy → FE | United States | $26.2bn | 0.088% | +0.015 pp | +0.051 pp | +37.6% | Yes |
| WEC Energy Group → WEC | United States | $31.5bn | 0.106% | +0.008 pp | +0.048 pp | +9.9% | Yes |
| Edison International → EIX | United States | $26.7bn | 0.090% | +0.007 pp | +0.046 pp | +25.0% | Yes |
| Eversource Energy → ES | United States | $30.4bn | 0.102% | +0.002 pp | +0.044 pp | +4.8% | Yes |
| PPL Corporation → PPL | United States | $21.0bn | 0.071% | -0.002 pp | +0.027 pp | +4.1% | No |
| Evergy → EVRG | United States | $15.7bn | 0.053% | +0.002 pp | +0.026 pp | +18.8% | Yes |
| Alliant Energy → LNT | United States | $15.6bn | 0.053% | +0.003 pp | +0.026 pp | +18.7% | Yes |
| Entergy → ETR | United States | $11.9bn | 0.040% | +0.004 pp | +0.020 pp | +21.7% | 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.