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
1.08%
Industry change · 12M
-0.73 pp
Electric Utilities · contribution
-0.733 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
May 2023 · 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 | $68.8bn | 0.170% | -0.085 pp | -0.142 pp | -17.4% | No |
| Southern Company → SO | United States | $76.1bn | 0.188% | -0.054 pp | -0.102 pp | -4.1% | No |
| American Electric Power → AEP | United States | $42.8bn | 0.106% | -0.053 pp | -0.083 pp | -15.6% | No |
| Exelon → EXC | United States | $39.4bn | 0.097% | -0.044 pp | -0.076 pp | -16.6% | No |
| Eversource Energy → ES | United States | $24.2bn | 0.060% | -0.033 pp | -0.055 pp | -22.5% | No |
| WEC Energy Group → WEC | United States | $27.6bn | 0.068% | -0.030 pp | -0.051 pp | -14.2% | No |
| Public Service Enterprise Group → PEG | United States | $29.8bn | 0.074% | -0.032 pp | -0.050 pp | -9.7% | No |
| FirstEnergy → FE | United States | $21.4bn | 0.053% | -0.027 pp | -0.035 pp | -9.4% | No |
| PPL Corporation → PPL | United States | $19.3bn | 0.048% | -0.022 pp | -0.032 pp | -10.3% | No |
| Edison International → EIX | United States | $25.9bn | 0.064% | -0.025 pp | -0.032 pp | +1.0% | No |
| Alliant Energy → LNT | United States | $12.9bn | 0.032% | -0.013 pp | -0.026 pp | -16.7% | No |
| Evergy → EVRG | United States | $13.3bn | 0.033% | -0.015 pp | -0.025 pp | -14.0% | No |
| Entergy → ETR | United States | $10.4bn | 0.026% | -0.013 pp | -0.018 pp | -15.2% | No |
| Constellation Energy → CEG | United States | $27.3bn | 0.067% | -0.019 pp | -0.006 pp | +36.8% | 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.