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

Consumer Discretionary11.3%+4.18 pp Energy3.7%+0.58 pp Industrials10.3%+0.07 pp Utilities3.2%+0.05 pp Materials3.2%+0.02 pp Real Estate3.2%+0.00 pp Health Care16.6%-0.02 pp Consumer Staples7.5%-0.07 pp Communication Services3.3%-0.59 pp Financials12.6%-0.72 pp Information Technology25.1%-3.51 pp

2 · Industry

Inside Energy

Oil & Gas Equipment & Services0.49%+0.19 pp Oil & Gas Refining & Marketing0.53%+0.13 pp Integrated Oil & Gas1.08%+0.10 pp Oil & Gas Exploration & Production1.16%+0.09 pp Oil & Gas Storage & Transportation0.43%+0.06 pp

3 · Sub-industry

Inside Oil & Gas Equipment & Services

Oil & Gas Equipment & Services0.49%+0.194 pp

Concentrated

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

View all contributions →

Oil & Gas Equipment & Services · weight

0.49%

Industry change · 12M

+0.19 pp

Oil & Gas Equipment & Services · contribution

+0.194 pp

Company participation

67%

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Feb 2023 · 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
Baker Hughes → BKR	United States	$30.9bn	0.109%	+0.109 pp	+0.109 pp	+6.8%	Yes
Schlumberger → SLB	United States	$75.6bn	0.266%	+0.018 pp	+0.075 pp	+37.8%	Yes
Halliburton → HAL	United States	$32.8bn	0.115%	-0.002 pp	+0.011 pp	+10.0%	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.