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
0.98%
Industry change · 12M
-0.05 pp
Electric Utilities · contribution
-0.054 pp
Company participation
7%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jun 2024 · 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 |
|---|---|---|---|---|---|---|---|
| Vistra Corp. → VST | United States | $29.9bn | 0.056% | +0.056 pp | +0.056 pp | +233.4% | Yes |
| Constellation Energy → CEG | United States | $63.1bn | 0.118% | -0.044 pp | +0.050 pp | +120.6% | No |
| Exelon → EXC | United States | $34.6bn | 0.065% | -0.039 pp | -0.029 pp | -11.7% | No |
| Eversource Energy → ES | United States | $20.0bn | 0.037% | -0.021 pp | -0.020 pp | -16.3% | No |
| Southern Company → SO | United States | $84.8bn | 0.159% | -0.058 pp | -0.018 pp | +14.9% | No |
| WEC Energy Group → WEC | United States | $24.8bn | 0.046% | -0.025 pp | -0.018 pp | -7.5% | No |
| Duke Energy → DUK | United States | $77.4bn | 0.145% | -0.062 pp | -0.015 pp | +16.7% | No |
| American Electric Power → AEP | United States | $46.2bn | 0.087% | -0.039 pp | -0.014 pp | +8.8% | No |
| FirstEnergy → FE | United States | $22.0bn | 0.041% | -0.020 pp | -0.010 pp | +2.9% | No |
| Edison International → EIX | United States | $27.6bn | 0.052% | -0.024 pp | -0.010 pp | +8.1% | No |
| Evergy → EVRG | United States | $12.2bn | 0.023% | -0.011 pp | -0.008 pp | -4.9% | No |
| PPL Corporation → PPL | United States | $20.4bn | 0.038% | -0.018 pp | -0.007 pp | +8.5% | No |
| Alliant Energy → LNT | United States | $13.0bn | 0.024% | -0.011 pp | -0.006 pp | +0.7% | No |
| Public Service Enterprise Group → PEG | United States | $36.7bn | 0.069% | -0.024 pp | -0.003 pp | +22.0% | No |
| Entergy → ETR | United States | $11.4bn | 0.021% | -0.010 pp | -0.002 pp | +15.0% | 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.