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 Discretionary11.4%+4.38 pp Energy3.6%+0.25 pp Consumer Staples7.5%+0.07 pp Utilities3.3%-0.11 pp Materials3.1%-0.19 pp Industrials10.0%-0.23 pp Real Estate3.1%-0.29 pp Communication Services3.2%-0.40 pp Health Care16.5%-0.47 pp Information Technology27.3%-1.33 pp Financials11.1%-1.69 pp

2 · Industry

Inside Energy

Oil & Gas Equipment & Services0.44%+0.13 pp Oil & Gas Refining & Marketing0.54%+0.11 pp Oil & Gas Storage & Transportation0.41%+0.02 pp Integrated Oil & Gas1.06%-0.01 pp Oil & Gas Exploration & Production1.11%-0.00 pp

3 · Sub-industry

Inside Oil & Gas Equipment & Services

Oil & Gas Equipment & Services0.44%+0.125 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

+0.13 pp

Oil & Gas Equipment & Services · contribution

+0.125 pp

Company participation

33%

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Mar 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	$29.2bn	0.100%	+0.100 pp	+0.100 pp	-18.7%	Yes
Schlumberger → SLB	United States	$69.7bn	0.238%	-0.036 pp	+0.043 pp	+20.8%	No
Halliburton → HAL	United States	$28.6bn	0.098%	-0.031 pp	-0.017 pp	-15.2%	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.