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
1.13%
Industry change · 12M
-0.59 pp
Electric Utilities · contribution
-0.586 pp
Company participation
8%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

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

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Duke Energy →
DUK
United States$58.9bn0.200%-0.134 pp-0.114 pp+9.0%No
Southern Company →
SO
United States$45.7bn0.155%-0.132 pp-0.103 pp+3.9%No
American Electric Power →
AEP
United States$36.2bn0.123%-0.082 pp-0.070 pp+9.7%No
Public Service Enterprise Group →
PEG
United States$27.0bn0.092%-0.060 pp-0.058 pp+5.8%No
PPL Corporation →
PPL
United States$21.3bn0.072%-0.045 pp-0.053 pp-0.3%No
Exelon →
EXC
United States$30.2bn0.102%-0.068 pp-0.048 pp+16.7%No
Eversource Energy →
ES
United States$20.0bn0.068%-0.044 pp-0.046 pp+2.9%No
WEC Energy Group →
WEC
United States$21.6bn0.073%-0.049 pp-0.043 pp+9.2%No
Evergy →
EVRG
United States$12.2bn0.041%+0.041 pp+0.041 pp+10.9%Yes
Edison International →
EIX
United States$22.6bn0.077%-0.050 pp-0.040 pp+14.2%No
FirstEnergy →
FE
United States$19.1bn0.065%-0.036 pp-0.019 pp+17.0%No
Alliant Energy →
LNT
United States$10.0bn0.034%-0.024 pp-0.018 pp+10.7%No
Entergy →
ETR
United States$7.6bn0.026%-0.017 pp-0.015 pp+10.4%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.