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

Health Care18.1%+1.27 pp Utilities3.8%+0.64 pp Information Technology17.5%+0.52 pp Real Estate3.7%+0.46 pp Materials2.5%+0.41 pp Communication Services3.6%+0.24 pp Consumer Discretionary7.1%+0.12 pp Energy4.3%-0.09 pp Consumer Staples8.8%-0.25 pp Industrials14.2%-1.17 pp Financials16.5%-2.16 pp

2 · Industry

Inside Energy

Oil & Gas Equipment & Services0.51%-0.28 pp Oil & Gas Storage & Transportation0.59%+0.10 pp Oil & Gas Exploration & Production1.22%+0.05 pp Integrated Oil & Gas1.32%+0.04 pp Oil & Gas Refining & Marketing0.69%+0.00 pp

3 · Sub-industry

Inside Oil & Gas Equipment & Services

Oil & Gas Equipment & Services0.51%-0.279 pp

Concentrated

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

View all contributions →

Oil & Gas Equipment & Services · weight

0.51%

Industry change · 12M

-0.28 pp

Oil & Gas Equipment & Services · contribution

-0.279 pp

Company participation

100%

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Feb 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	$60.9bn	0.353%	+0.146 pp	-0.191 pp	-30.3%	Yes
Halliburton → HAL	United States	$26.8bn	0.155%	+0.064 pp	-0.088 pp	-32.7%	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.