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
1.54%
Industry change · 12M
+0.54 pp
Electric Utilities · contribution
+0.540 pp
Company participation
20%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Jul 2025 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Constellation Energy →
CEG
United States$109.0bn0.230%+0.062 pp+0.123 pp+84.5%Yes
Vistra Corp. →
VST
United States$70.8bn0.149%+0.044 pp+0.100 pp+165.1%Yes
Entergy →
ETR
United States$39.0bn0.082%-0.004 pp+0.060 pp+61.1%No
Southern Company →
SO
United States$103.9bn0.219%-0.023 pp+0.055 pp+17.0%No
Duke Energy →
DUK
United States$94.5bn0.199%-0.028 pp+0.048 pp+15.5%No
American Electric Power →
AEP
United States$60.5bn0.128%-0.011 pp+0.034 pp+19.6%No
Exelon →
EXC
United States$45.4bn0.096%-0.017 pp+0.029 pp+25.5%No
WEC Energy Group →
WEC
United States$34.8bn0.073%-0.010 pp+0.025 pp+31.3%No
Public Service Enterprise Group →
PEG
United States$44.8bn0.094%-0.001 pp+0.023 pp+16.0%Yes
PPL Corporation →
PPL
United States$26.4bn0.056%-0.009 pp+0.016 pp+24.0%No
Edison International →
EIX
United States$20.1bn0.042%-0.007 pp-0.013 pp-31.5%No
Evergy →
EVRG
United States$16.3bn0.034%-0.004 pp+0.010 pp+27.3%No
Eversource Energy →
ES
United States$24.3bn0.051%-0.001 pp+0.010 pp+6.8%No
Alliant Energy →
LNT
United States$16.7bn0.035%-0.002 pp+0.010 pp+20.7%No
FirstEnergy →
FE
United States$24.7bn0.052%-0.007 pp+0.009 pp+6.2%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.