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
1 · Sector
Weight and 12M allocation change
2 · Industry
Inside Industrials
Aerospace & Defense6.82%-0.26 ppIndustrial Conglomerates1.22%-0.14 ppIndustrial Machinery & Supplies & Components1.01%-0.07 ppRail Transportation0.99%+0.05 ppConstruction Machinery & Heavy Transportation Equipment0.78%-0.05 ppAgricultural & Farm Machinery0.27%-0.04 ppElectrical Components & Equipment0.69%-0.03 ppBuilding Products0.44%-0.03 ppPassenger Airlines0.53%-0.02 ppResearch & Consulting Services0.19%+0.01 ppTrading Companies & Distributors0.10%-0.01 ppAir Freight & Logistics0.97%-0.01 ppCargo Ground Transportation0.08%+0.00 ppEnvironmental & Facilities Services0.35%-0.00 ppHuman Resource & Employment Services0.46%+0.00 ppDiversified Support Services0.03%+0.00 ppConstruction & Engineering0.07%-0.00 ppData Processing & Outsourced Services0.00%+0.00 ppHeavy Electrical Equipment0.00%+0.00 ppPassenger Ground Transportation0.00%+0.00 pp
3 · Sub-industry
Inside Passenger Airlines
Passenger Airlines · weight
0.53%
Industry change · 12M
-0.02 pp
Passenger Airlines · contribution
-0.020 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Apr 2018 · 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 |
|---|---|---|---|---|---|---|---|
| Southwest Airlines → LUV | United States | $31.1bn | 0.191% | -0.015 pp | -0.015 pp | -12.9% | No |
| Delta Air Lines → DAL | United States | $36.7bn | 0.225% | -0.005 pp | -0.005 pp | -7.5% | No |
| United Airlines Holdings → UAL | United States | $18.7bn | 0.115% | +0.000 pp | +0.000 pp | -0.4% | 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.