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
2.06%
Industry change · 12M
-0.04 pp
Electric Utilities · contribution
-0.044 pp
Company participation
92%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Apr 2020 · 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 |
|---|---|---|---|---|---|---|---|
| Exelon → EXC | United States | $25.8bn | 0.144% | -0.019 pp | -0.052 pp | -24.9% | Yes |
| Southern Company → SO | United States | $59.9bn | 0.335% | -0.029 pp | +0.028 pp | +11.1% | Yes |
| Public Service Enterprise Group → PEG | United States | $25.6bn | 0.143% | -0.004 pp | -0.024 pp | -12.2% | Yes |
| Eversource Energy → ES | United States | $26.6bn | 0.149% | +0.001 pp | +0.022 pp | +15.6% | Yes |
| WEC Energy Group → WEC | United States | $28.6bn | 0.160% | +0.004 pp | +0.022 pp | +18.6% | Yes |
| Duke Energy → DUK | United States | $62.1bn | 0.347% | -0.004 pp | -0.022 pp | -3.1% | Yes |
| PPL Corporation → PPL | United States | $19.5bn | 0.109% | -0.020 pp | -0.016 pp | -14.2% | Yes |
| Evergy → EVRG | United States | $13.2bn | 0.074% | -0.007 pp | -0.008 pp | +4.2% | Yes |
| American Electric Power → AEP | United States | $41.1bn | 0.230% | -0.024 pp | -0.005 pp | +0.1% | Yes |
| Alliant Energy → LNT | United States | $11.9bn | 0.067% | -0.004 pp | +0.004 pp | +5.7% | Yes |
| Edison International → EIX | United States | $21.3bn | 0.119% | -0.016 pp | +0.004 pp | -4.4% | No |
| Entergy → ETR | United States | $9.5bn | 0.053% | -0.011 pp | +0.002 pp | +1.9% | Yes |
| FirstEnergy → FE | United States | $22.4bn | 0.125% | -0.010 pp | +0.001 pp | +1.5% | 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.