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
1.09%
Industry change · 12M
-0.36 pp
Electric Utilities · contribution
-0.364 pp
Company participation
0%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

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

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Southern Company →
SO
United States$109.0bn0.150%-0.047 pp-0.071 pp+12.0%No
Duke Energy →
DUK
United States$101.8bn0.140%-0.050 pp-0.064 pp+15.3%No
Public Service Enterprise Group →
PEG
United States$42.9bn0.059%-0.023 pp-0.032 pp+9.5%No
Exelon →
EXC
United States$50.6bn0.069%-0.024 pp-0.030 pp+14.9%No
American Electric Power →
AEP
United States$72.4bn0.099%-0.031 pp-0.027 pp+30.4%No
WEC Energy Group →
WEC
United States$38.1bn0.052%-0.019 pp-0.024 pp+13.3%No
Vistra Corp. →
VST
United States$58.6bn0.080%-0.039 pp-0.021 pp+30.8%No
PPL Corporation →
PPL
United States$29.3bn0.040%-0.013 pp-0.018 pp+14.3%No
Entergy →
ETR
United States$48.5bn0.067%-0.019 pp-0.017 pp+26.0%No
Eversource Energy →
ES
United States$28.6bn0.039%-0.010 pp-0.012 pp+26.7%No
Alliant Energy →
LNT
United States$18.6bn0.026%-0.010 pp-0.012 pp+15.7%No
Constellation Energy →
CEG
United States$119.4bn0.164%-0.060 pp-0.011 pp+32.4%No
FirstEnergy →
FE
United States$29.6bn0.041%-0.014 pp-0.009 pp+37.3%No
Evergy →
EVRG
United States$19.3bn0.026%-0.009 pp-0.009 pp+26.2%No
Edison International →
EIX
United States$28.8bn0.039%-0.005 pp-0.007 pp+45.9%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.