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
2.03%
Industry change · 12M
+0.21 pp
Electric Utilities · contribution
+0.206 pp
Company participation
31%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jul 2019 · 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 |
|---|---|---|---|---|---|---|---|
| Evergy → EVRG | United States | $14.8bn | 0.079% | -0.003 pp | +0.079 pp | +11.4% | No |
| American Electric Power → AEP | United States | $43.4bn | 0.231% | -0.004 pp | +0.026 pp | +27.7% | No |
| Southern Company → SO | United States | $58.7bn | 0.313% | +0.006 pp | +0.026 pp | +21.5% | Yes |
| FirstEnergy → FE | United States | $23.4bn | 0.125% | +0.000 pp | +0.024 pp | +29.0% | No |
| WEC Energy Group → WEC | United States | $27.0bn | 0.143% | +0.006 pp | +0.021 pp | +32.9% | Yes |
| Eversource Energy → ES | United States | $24.1bn | 0.128% | +0.002 pp | +0.016 pp | +28.8% | No |
| Entergy → ETR | United States | $10.0bn | 0.053% | +0.002 pp | +0.011 pp | +35.4% | Yes |
| Exelon → EXC | United States | $31.2bn | 0.166% | -0.030 pp | -0.005 pp | +9.3% | No |
| Alliant Energy → LNT | United States | $11.8bn | 0.063% | +0.000 pp | +0.005 pp | +18.9% | No |
| PPL Corporation → PPL | United States | $21.4bn | 0.114% | -0.012 pp | -0.004 pp | +8.6% | No |
| Edison International → EIX | United States | $24.3bn | 0.129% | +0.013 pp | +0.003 pp | +16.3% | Yes |
| Duke Energy → DUK | United States | $63.1bn | 0.336% | -0.033 pp | +0.002 pp | +11.0% | No |
| Public Service Enterprise Group → PEG | United States | $28.9bn | 0.154% | -0.014 pp | +0.002 pp | +14.5% | 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.