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›Industrials›Construction & Engineering›Construction & Engineering
Construction & Engineering · weight
0.04%
Industry change · 12M
-0.03 pp
Construction & Engineering · contribution
-0.027 pp
Company participation
0%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Sep 2018 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Quanta Services →
PWR
United States$4.8bn0.015%-0.014 pp-0.016 pp-13.3%No
Jacobs Solutions →
J
United States$9.0bn0.029%-0.017 pp-0.011 pp+11.1%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.