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
1.03%
Industry change · 12M
-0.68 pp
Electric Utilities · contribution
-0.682 pp
Company participation
8%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Sep 2018 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Duke Energy →
DUK
United States$57.0bn0.182%-0.155 pp-0.132 pp+5.6%No
Southern Company →
SO
United States$44.2bn0.141%-0.143 pp-0.117 pp+0.6%No
American Electric Power →
AEP
United States$34.9bn0.111%-0.096 pp-0.082 pp+5.9%No
Public Service Enterprise Group →
PEG
United States$26.7bn0.085%-0.081 pp-0.065 pp+4.6%No
PPL Corporation →
PPL
United States$20.5bn0.065%-0.056 pp-0.060 pp-4.0%No
Exelon →
EXC
United States$30.1bn0.096%-0.082 pp-0.055 pp+16.3%No
Eversource Energy →
ES
United States$19.5bn0.062%-0.051 pp-0.052 pp-0.1%No
WEC Energy Group →
WEC
United States$21.1bn0.067%-0.057 pp-0.049 pp+6.6%No
Edison International →
EIX
United States$22.1bn0.070%-0.055 pp-0.046 pp+11.3%No
Evergy →
EVRG
United States$12.0bn0.038%+0.038 pp+0.038 pp+8.8%Yes
FirstEnergy →
FE
United States$18.1bn0.058%-0.046 pp-0.026 pp+16.7%No
Alliant Energy →
LNT
United States$10.0bn0.032%-0.028 pp-0.021 pp+8.8%No
Entergy →
ETR
United States$7.3bn0.023%-0.021 pp-0.017 pp+6.7%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.