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›Oil & Gas Equipment & Services›Oil & Gas Equipment & Services

1 · Sector

Weight and 12M allocation change

Communication Services5.0%+1.82 pp Consumer Staples9.1%+0.76 pp Materials2.8%+0.64 pp Utilities3.9%+0.57 pp Health Care17.2%+0.54 pp Real Estate3.9%+0.51 pp Consumer Discretionary7.0%-0.07 pp Information Technology17.6%-0.07 pp Energy3.9%-1.29 pp Financials16.3%-1.64 pp Industrials13.4%-1.77 pp

2 · Industry

Inside Energy

Oil & Gas Equipment & Services0.39%-0.45 pp Oil & Gas Exploration & Production1.04%-0.42 pp Oil & Gas Refining & Marketing0.56%-0.31 pp Integrated Oil & Gas1.26%-0.18 pp Oil & Gas Storage & Transportation0.60%+0.07 pp

3 · Sub-industry

Inside Oil & Gas Equipment & Services

Oil & Gas Equipment & Services0.39%-0.453 pp

Concentrated

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

View all contributions →

Oil & Gas Equipment & Services · weight

0.39%

Industry change · 12M

-0.45 pp

Oil & Gas Equipment & Services · contribution

-0.453 pp

Company participation

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

May 2019 · 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
Schlumberger → SLB	United States	$48.0bn	0.280%	-0.073 pp	-0.297 pp	-47.5%	No
Halliburton → HAL	United States	$18.6bn	0.108%	-0.047 pp	-0.156 pp	-56.3%	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.