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
1.31%
Industry change · 12M
-0.18 pp
Electric Utilities · contribution
-0.185 pp
Company participation
93%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Jun 2026 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Constellation Energy →
CEG
United States$89.7bn0.156%+0.009 pp-0.062 pp-22.6%No
Vistra Corp. →
VST
United States$53.5bn0.093%+0.019 pp-0.049 pp-17.7%Yes
Southern Company →
SO
United States$107.9bn0.187%+0.030 pp-0.030 pp+7.6%Yes
Duke Energy →
DUK
United States$98.7bn0.171%+0.023 pp-0.026 pp+11.0%Yes
Public Service Enterprise Group →
PEG
United States$40.4bn0.070%+0.011 pp-0.020 pp-0.4%Yes
Entergy →
ETR
United States$52.6bn0.091%+0.017 pp+0.014 pp+41.7%Yes
Exelon →
EXC
United States$47.7bn0.083%+0.010 pp-0.012 pp+11.2%Yes
American Electric Power →
AEP
United States$74.4bn0.129%+0.026 pp+0.010 pp+36.0%Yes
Edison International →
EIX
United States$28.6bn0.050%+0.009 pp+0.007 pp+52.9%Yes
PPL Corporation →
PPL
United States$27.3bn0.048%+0.006 pp-0.007 pp+10.7%Yes
WEC Energy Group →
WEC
United States$38.0bn0.066%+0.011 pp-0.006 pp+15.8%Yes
Eversource Energy →
ES
United States$27.2bn0.047%+0.009 pp-0.003 pp+18.8%Yes
FirstEnergy →
FE
United States$27.5bn0.048%+0.005 pp-0.002 pp+22.9%Yes
Alliant Energy →
LNT
United States$19.7bn0.034%+0.007 pp+0.001 pp+30.1%Yes
Evergy →
EVRG
United States$19.9bn0.035%+0.007 pp+0.000 pp+29.9%Yes

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.