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
2.18%
Industry change · 12M
+1.13 pp
Electric Utilities · contribution
+1.131 pp
Company participation
85%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

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

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Southern Company →
SO
United States$60.9bn0.331%+0.007 pp+0.188 pp+39.5%Yes
Duke Energy →
DUK
United States$67.6bn0.367%+0.005 pp+0.181 pp+19.1%Yes
American Electric Power →
AEP
United States$45.0bn0.245%-0.003 pp+0.131 pp+31.3%Yes
WEC Energy Group →
WEC
United States$30.2bn0.164%+0.016 pp+0.095 pp+46.0%Yes
Exelon →
EXC
United States$32.8bn0.178%-0.016 pp+0.081 pp+11.5%No
Public Service Enterprise Group →
PEG
United States$30.6bn0.166%-0.007 pp+0.081 pp+19.3%Yes
Eversource Energy →
ES
United States$25.9bn0.141%+0.005 pp+0.077 pp+32.3%Yes
FirstEnergy →
FE
United States$24.5bn0.133%+0.005 pp+0.074 pp+27.7%Yes
Edison International →
EIX
United States$23.5bn0.128%+0.015 pp+0.059 pp+14.3%Yes
PPL Corporation →
PPL
United States$21.3bn0.116%-0.009 pp+0.049 pp+4.8%No
Evergy →
EVRG
United States$15.3bn0.083%+0.001 pp+0.043 pp+17.6%Yes
Entergy →
ETR
United States$11.2bn0.061%+0.007 pp+0.037 pp+40.3%Yes
Alliant Energy →
LNT
United States$12.5bn0.068%+0.002 pp+0.035 pp+26.2%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.