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
2.05%
Industry change · 12M
+0.85 pp
Electric Utilities · contribution
+0.852 pp
Company participation
15%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

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

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Southern Company →
SO
United States$66.8bn0.328%-0.015 pp+0.166 pp+51.7%No
Duke Energy →
DUK
United States$66.5bn0.326%-0.045 pp+0.106 pp+10.3%No
American Electric Power →
AEP
United States$46.7bn0.229%-0.017 pp+0.097 pp+30.5%No
Edison International →
EIX
United States$27.0bn0.133%+0.002 pp+0.067 pp+37.6%Yes
WEC Energy Group →
WEC
United States$29.1bn0.143%-0.017 pp+0.065 pp+37.0%No
Eversource Energy →
ES
United States$27.5bn0.135%-0.012 pp+0.061 pp+34.5%No
FirstEnergy →
FE
United States$26.3bn0.129%-0.007 pp+0.060 pp+34.1%No
PPL Corporation →
PPL
United States$25.9bn0.127%+0.006 pp+0.054 pp+33.4%Yes
Public Service Enterprise Group →
PEG
United States$29.9bn0.147%-0.020 pp+0.052 pp+17.1%No
Exelon →
EXC
United States$31.6bn0.155%-0.023 pp+0.044 pp+4.3%No
Entergy →
ETR
United States$11.9bn0.059%-0.003 pp+0.031 pp+44.3%No
Alliant Energy →
LNT
United States$13.2bn0.065%-0.004 pp+0.029 pp+33.4%No
Evergy →
EVRG
United States$14.8bn0.073%-0.010 pp+0.019 pp+18.4%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.