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›Energy›Integrated Oil & Gas›Integrated Oil & Gas

1 · Sector

Weight and 12M allocation change

Information Technology36.6%+3.08 pp Industrials10.0%+0.39 pp Communication Services2.7%+0.26 pp Materials2.4%+0.12 pp Energy2.5%+0.04 pp Utilities2.6%-0.06 pp Real Estate2.1%-0.26 pp Consumer Staples6.3%-0.46 pp Consumer Discretionary12.3%-0.81 pp Financials11.4%-1.15 pp Health Care11.0%-1.15 pp

2 · Industry

Inside Energy

Integrated Oil & Gas0.68%+0.09 pp Oil & Gas Storage & Transportation0.46%-0.04 pp Oil & Gas Exploration & Production0.74%-0.03 pp Oil & Gas Equipment & Services0.30%+0.02 pp Oil & Gas Refining & Marketing0.32%+0.01 pp

3 · Sub-industry

Inside Integrated Oil & Gas

Integrated Oil & Gas0.68%+0.085 pp

Concentrated

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

View all contributions →

Integrated Oil & Gas · weight

0.68%

Industry change · 12M

+0.09 pp

Integrated Oil & Gas · contribution

+0.085 pp

Company participation

100%

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Jan 2026 · 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
Chevron Corporation → CVX	United States	$356.2bn	0.681%	+0.148 pp	+0.085 pp	+24.1%	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.