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
99.93%
Industry change · 12M
+97.81 pp
Electric Utilities · contribution
+97.814 pp
Company participation
8%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Feb 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 |
|---|---|---|---|---|---|---|---|
| Edison International → EIX | United States | $24361100.0bn | 99.924% | +99.799 pp | +99.811 pp | +16.2% | Yes |
| Duke Energy → DUK | United States | $67.2bn | 0.000% | -0.324 pp | -0.378 pp | +6.6% | No |
| Southern Company → SO | United States | $63.6bn | 0.000% | -0.327 pp | -0.298 pp | +26.6% | No |
| American Electric Power → AEP | United States | $44.1bn | 0.000% | -0.227 pp | -0.232 pp | +13.3% | No |
| Exelon → EXC | United States | $30.0bn | 0.000% | -0.155 pp | -0.195 pp | -8.5% | No |
| Public Service Enterprise Group → PEG | United States | $25.9bn | 0.000% | -0.151 pp | -0.172 pp | -10.0% | No |
| WEC Energy Group → WEC | United States | $29.1bn | 0.000% | -0.141 pp | -0.139 pp | +24.4% | No |
| PPL Corporation → PPL | United States | $23.0bn | 0.000% | -0.124 pp | -0.134 pp | -1.7% | No |
| Eversource Energy → ES | United States | $28.5bn | 0.000% | -0.135 pp | -0.128 pp | +27.3% | No |
| FirstEnergy → FE | United States | $24.1bn | 0.000% | -0.130 pp | -0.125 pp | +13.0% | No |
| Evergy → EVRG | United States | $14.9bn | 0.000% | -0.073 pp | -0.082 pp | +20.7% | No |
| Alliant Energy → LNT | United States | $12.8bn | 0.000% | -0.064 pp | -0.063 pp | +16.8% | No |
| Entergy → ETR | United States | $11.7bn | 0.000% | -0.058 pp | -0.051 pp | +29.5% | 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.