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
0.91%
Industry change · 12M
-1.29 pp
Electric Utilities · contribution
-1.287 pp
Company participation
0%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

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

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Southern Company →
SO
United States$62.2bn0.149%-0.138 pp-0.215 pp-12.7%No
Duke Energy →
DUK
United States$69.2bn0.166%-0.155 pp-0.185 pp+0.5%No
American Electric Power →
AEP
United States$40.2bn0.096%-0.115 pp-0.158 pp-19.8%No
FirstEnergy →
FE
United States$16.7bn0.040%-0.036 pp-0.095 pp-36.7%No
Exelon →
EXC
United States$28.9bn0.069%-0.062 pp-0.094 pp-9.3%No
WEC Energy Group →
WEC
United States$28.0bn0.067%-0.083 pp-0.088 pp-8.6%No
Edison International →
EIX
United States$22.0bn0.053%-0.048 pp-0.083 pp-20.4%No
Public Service Enterprise Group →
PEG
United States$28.5bn0.068%-0.071 pp-0.079 pp-1.2%No
PPL Corporation →
PPL
United States$21.3bn0.051%-0.049 pp-0.078 pp-19.1%No
Eversource Energy →
ES
United States$30.0bn0.072%-0.070 pp-0.076 pp-2.8%No
Evergy →
EVRG
United States$12.2bn0.029%-0.030 pp-0.052 pp-22.9%No
Entergy →
ETR
United States$9.5bn0.023%-0.025 pp-0.042 pp-25.0%No
Alliant Energy →
LNT
United States$12.2bn0.029%-0.036 pp-0.041 pp-15.6%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.