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›Passenger Airlines›Passenger Airlines
Passenger Airlines · weight
0.31%
Industry change · 12M
+0.08 pp
Passenger Airlines · contribution
+0.085 pp
Company participation
100%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Apr 2021 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Southwest Airlines →
LUV
United States$37.1bn0.135%+0.072 pp+0.046 pp+100.9%Yes
United Airlines Holdings →
UAL
United States$17.6bn0.064%+0.036 pp+0.023 pp+83.9%Yes
Delta Air Lines →
DAL
United States$30.0bn0.109%+0.051 pp+0.016 pp+81.1%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.