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
2.03%
Industry change · 12M
+0.88 pp
Electric Utilities · contribution
+0.876 pp
Company participation
15%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Nov 2019 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Southern Company →
SO
United States$65.0bn0.328%-0.004 pp+0.166 pp+36.9%No
Duke Energy →
DUK
United States$64.3bn0.324%-0.044 pp+0.114 pp+3.9%No
American Electric Power →
AEP
United States$45.1bn0.227%-0.017 pp+0.100 pp+21.3%No
FirstEnergy →
FE
United States$25.8bn0.130%-0.003 pp+0.066 pp+30.6%No
Edison International →
EIX
United States$24.8bn0.125%-0.003 pp+0.065 pp+29.7%Yes
WEC Energy Group →
WEC
United States$28.0bn0.141%-0.023 pp+0.065 pp+25.9%No
Eversource Energy →
ES
United States$26.8bn0.135%-0.006 pp+0.063 pp+24.4%No
Public Service Enterprise Group →
PEG
United States$30.0bn0.151%-0.015 pp+0.057 pp+9.5%No
PPL Corporation →
PPL
United States$24.6bn0.124%+0.008 pp+0.051 pp+17.4%Yes
Exelon →
EXC
United States$30.8bn0.155%-0.023 pp+0.049 pp-1.3%No
Entergy →
ETR
United States$11.6bn0.058%-0.003 pp+0.032 pp+38.6%No
Alliant Energy →
LNT
United States$12.7bn0.064%-0.004 pp+0.029 pp+20.3%No
Evergy →
EVRG
United States$14.4bn0.073%-0.011 pp+0.021 pp+10.0%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.