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
Universe›Utilities›Electric Utilities›Electric Utilities
Electric Utilities · weight
1.46%
Industry change · 12M
+0.03 pp
Electric Utilities · contribution
+0.029 pp
Company participation
53%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Nov 2025 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Entergy →
ETR
United States$43.6bn0.086%+0.004 pp+0.049 pp+28.4%Yes
Constellation Energy →
CEG
United States$113.8bn0.224%+0.024 pp+0.046 pp+42.8%Yes
Edison International →
EIX
United States$22.7bn0.045%-0.000 pp-0.030 pp-29.0%Yes
Public Service Enterprise Group →
PEG
United States$41.7bn0.082%-0.003 pp-0.022 pp-8.7%No
Southern Company →
SO
United States$100.3bn0.197%-0.013 pp-0.018 pp+5.7%No
American Electric Power →
AEP
United States$66.2bn0.130%+0.007 pp+0.013 pp+28.3%Yes
Duke Energy →
DUK
United States$96.4bn0.189%-0.008 pp-0.010 pp+9.7%No
Exelon →
EXC
United States$47.6bn0.094%+0.002 pp+0.006 pp+23.4%Yes
PPL Corporation →
PPL
United States$27.3bn0.054%-0.002 pp-0.003 pp+9.0%No
Eversource Energy →
ES
United States$25.2bn0.050%+0.000 pp-0.003 pp+9.3%No
Evergy →
EVRG
United States$17.9bn0.035%+0.001 pp+0.002 pp+24.9%Yes
WEC Energy Group →
WEC
United States$36.5bn0.072%+0.001 pp+0.001 pp+14.7%No
Vistra Corp. →
VST
United States$60.6bn0.119%-0.014 pp-0.001 pp+12.5%No
Alliant Energy →
LNT
United States$17.9bn0.035%+0.000 pp-0.001 pp+13.5%Yes
FirstEnergy →
FE
United States$27.6bn0.054%+0.002 pp+0.000 pp+16.9%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.