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 Discretionary11.0%+4.09 pp Energy3.5%+0.08 pp Utilities3.3%-0.16 pp Information Technology27.2%-0.18 pp Materials3.1%-0.37 pp Industrials9.8%-0.38 pp Communication Services3.1%-0.41 pp Real Estate3.1%-0.49 pp Consumer Staples7.7%-0.53 pp Health Care16.9%-0.55 pp Financials11.3%-1.10 pp

2 · Industry

Inside Energy

Oil & Gas Equipment & Services0.44%+0.12 pp Oil & Gas Exploration & Production1.14%-0.02 pp Integrated Oil & Gas1.09%-0.02 pp Oil & Gas Refining & Marketing0.48%-0.02 pp Oil & Gas Storage & Transportation0.41%+0.01 pp

3 · Sub-industry

Inside Oil & Gas Equipment & Services

Oil & Gas Equipment & Services0.44%+0.122 pp

Concentrated

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

View all contributions →

Oil & Gas Equipment & Services · weight

0.44%

Industry change · 12M

+0.12 pp

Oil & Gas Equipment & Services · contribution

+0.122 pp

Company participation

33%

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Apr 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	$29.6bn	0.100%	+0.100 pp	+0.100 pp	-3.3%	Yes
Schlumberger → SLB	United States	$70.3bn	0.238%	-0.039 pp	+0.038 pp	+28.6%	No
Halliburton → HAL	United States	$29.5bn	0.100%	-0.028 pp	-0.016 pp	-6.7%	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.