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

Consumer Discretionary52.2%+52.24 pp Information Technology13.5%+13.45 pp Health Care8.1%+8.05 pp Financials7.4%+7.34 pp Industrials6.6%+6.58 pp Consumer Staples3.8%+3.78 pp Communication Services2.4%+2.43 pp Materials1.7%+1.66 pp Real Estate1.5%+1.53 pp Energy1.2%+1.20 pp Utilities1.7%-98.26 pp

2 · Industry

Inside Utilities

Electric Utilities0.79%-99.13 pp Multi-Utilities0.75%+0.75 pp Water Utilities0.05%+0.05 pp Independent Power Producers & Energy Traders0.05%+0.05 pp Gas Utilities0.02%+0.02 pp

3 · Sub-industry

Inside Gas Utilities

Gas Utilities0.02%+0.025 pp

Concentrated

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

View all contributions →

Gas Utilities · weight

0.02%

Industry change · 12M

+0.02 pp

Gas Utilities · contribution

+0.025 pp

Company participation

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

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

Company	Country	Market cap	Universe weight	3M contribution	12M contribution	12M price return	Above 6M weight average
Atmos Energy → ATO	United States	$12.7bn	0.025%	-0.024 pp	+0.025 pp	+2.1%	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.