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
1.40%
Industry change · 12M
-0.43 pp
Electric Utilities · contribution
-0.427 pp
Company participation
15%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Oct 2021 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
American Electric Power →
AEP
United States$42.7bn0.143%-0.009 pp-0.069 pp-2.5%No
Southern Company →
SO
United States$66.0bn0.220%-0.011 pp-0.067 pp+13.0%No
Duke Energy →
DUK
United States$78.5bn0.262%-0.015 pp-0.059 pp+15.2%No
WEC Energy Group →
WEC
United States$28.4bn0.095%-0.007 pp-0.055 pp-7.9%No
Eversource Energy →
ES
United States$29.2bn0.097%-0.004 pp-0.044 pp+0.1%No
Public Service Enterprise Group →
PEG
United States$32.3bn0.108%-0.000 pp-0.032 pp+13.5%No
PPL Corporation →
PPL
United States$22.2bn0.074%-0.001 pp-0.026 pp+10.9%No
Edison International →
EIX
United States$23.9bn0.080%+0.009 pp-0.021 pp+17.5%Yes
Alliant Energy →
LNT
United States$14.2bn0.047%-0.003 pp-0.018 pp+5.4%No
Entergy →
ETR
United States$10.4bn0.035%-0.001 pp-0.013 pp+5.5%No
Evergy →
EVRG
United States$14.6bn0.049%-0.002 pp-0.010 pp+19.7%No
Exelon →
EXC
United States$37.1bn0.124%+0.012 pp-0.007 pp+38.2%Yes
FirstEnergy →
FE
United States$21.0bn0.070%-0.001 pp-0.006 pp+35.8%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.