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

Information Technology18.5%+1.48 pp Materials2.6%+0.47 pp Consumer Staples9.0%+0.44 pp Utilities3.8%+0.36 pp Real Estate3.7%+0.31 pp Communication Services3.5%+0.30 pp Consumer Discretionary7.3%+0.14 pp Health Care16.9%+0.03 pp Energy4.1%-0.93 pp Industrials13.9%-1.13 pp Financials16.8%-1.46 pp

2 · Industry

Inside Energy

Oil & Gas Equipment & Services0.47%-0.40 pp Oil & Gas Exploration & Production1.13%-0.29 pp Integrated Oil & Gas1.27%-0.20 pp Oil & Gas Refining & Marketing0.68%-0.15 pp Oil & Gas Storage & Transportation0.60%+0.10 pp

3 · Sub-industry

Inside Oil & Gas Equipment & Services

Oil & Gas Equipment & Services0.47%-0.401 pp

Concentrated

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

View all contributions →

Oil & Gas Equipment & Services · weight

0.47%

Industry change · 12M

-0.40 pp

Oil & Gas Equipment & Services · contribution

-0.401 pp

Company participation

100%

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Apr 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	$59.1bn	0.329%	+0.128 pp	-0.254 pp	-35.4%	Yes
Halliburton → HAL	United States	$24.8bn	0.138%	+0.047 pp	-0.147 pp	-45.5%	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.