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 Care17.9%+1.29 pp Information Technology17.9%+0.79 pp Utilities3.9%+0.52 pp Materials2.5%+0.42 pp Real Estate3.8%+0.41 pp Communication Services3.6%+0.24 pp Consumer Discretionary7.2%+0.13 pp Consumer Staples9.1%-0.01 pp Energy4.4%-0.26 pp Industrials13.8%-1.36 pp Financials16.0%-2.17 pp

2 · Industry

Inside Energy

Oil & Gas Equipment & Services0.49%-0.31 pp Oil & Gas Storage & Transportation0.63%+0.15 pp Oil & Gas Refining & Marketing0.68%-0.07 pp Oil & Gas Exploration & Production1.21%-0.04 pp Integrated Oil & Gas1.34%+0.01 pp

3 · Sub-industry

Inside Oil & Gas Equipment & Services

Oil & Gas Equipment & Services0.49%-0.309 pp

Concentrated

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

View all contributions →

Oil & Gas Equipment & Services · weight

0.49%

Industry change · 12M

-0.31 pp

Oil & Gas Equipment & Services · contribution

-0.309 pp

Company participation

100%

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Mar 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	$60.3bn	0.346%	+0.168 pp	-0.204 pp	-30.2%	Yes
Halliburton → HAL	United States	$25.6bn	0.147%	+0.064 pp	-0.105 pp	-36.3%	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.