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
1.47%
Industry change · 12M
+1.47 pp
Electric Utilities · contribution
+1.472 pp
Company participation
100%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

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

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Duke Energy →
DUK
United States$77.1bn0.276%+0.145 pp+0.276 pp+22.0%Yes
Southern Company →
SO
United States$67.7bn0.242%+0.123 pp+0.242 pp+16.9%Yes
American Electric Power →
AEP
United States$43.0bn0.154%+0.080 pp+0.154 pp+4.4%Yes
Exelon →
EXC
United States$31.4bn0.113%+0.059 pp+0.113 pp+22.3%Yes
Public Service Enterprise Group →
PEG
United States$31.4bn0.112%+0.058 pp+0.112 pp+26.2%Yes
WEC Energy Group →
WEC
United States$29.6bn0.106%+0.055 pp+0.106 pp+5.3%Yes
Eversource Energy →
ES
United States$27.9bn0.100%+0.045 pp+0.100 pp-0.2%Yes
PPL Corporation →
PPL
United States$22.4bn0.080%+0.040 pp+0.080 pp+10.4%Yes
Edison International →
EIX
United States$21.2bn0.076%+0.035 pp+0.076 pp+0.6%Yes
FirstEnergy →
FE
United States$20.6bn0.074%+0.038 pp+0.074 pp-5.7%Yes
Alliant Energy →
LNT
United States$14.3bn0.051%+0.028 pp+0.051 pp+19.2%Yes
Evergy →
EVRG
United States$14.2bn0.051%+0.027 pp+0.051 pp+4.4%Yes
Entergy →
ETR
United States$10.6bn0.038%+0.020 pp+0.038 pp+7.2%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.