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›Gas Utilities›Gas Utilities

1 · Sector

Weight and 12M allocation change

Financials99.9%+83.77 ppMaterials0.0%-3.27 ppEnergy0.0%-3.61 ppReal Estate0.0%-3.88 ppUtilities0.0%-3.96 ppCommunication Services0.0%-5.32 ppConsumer Discretionary0.0%-7.14 ppConsumer Staples0.0%-9.17 ppIndustrials0.0%-13.51 ppHealth Care0.0%-16.05 ppInformation Technology0.0%-17.85 pp

2 · Industry

Inside Utilities

Electric Utilities0.00%-2.21 ppMulti-Utilities0.00%-1.45 ppWater Utilities0.00%-0.12 ppIndependent Power Producers & Energy Traders0.00%-0.11 ppGas Utilities0.00%-0.07 pp

3 · Sub-industry

Inside Gas Utilities

Gas Utilities0.00%-0.071 pp
Concentrated

Most of this industry's losses came from a few companies.

View all contributions →
Gas Utilities · weight
0.00%
Industry change · 12M
-0.07 pp
Gas Utilities · contribution
-0.071 pp
Company participation
0%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Sep 2020 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Atmos Energy →
ATO
United States$11.8bn0.000%-0.000 pp-0.071 pp-14.2%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.