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
Construction Machinery & Heavy Transportation Equipment1.02%+0.30 ppConstruction & Engineering0.37%+0.21 ppIndustrial Conglomerates0.39%-0.15 ppPassenger Ground Transportation0.25%-0.14 ppElectrical Components & Equipment0.78%+0.12 ppEnvironmental & Facilities Services0.34%-0.12 ppHuman Resource & Employment Services0.26%-0.12 ppDiversified Support Services0.22%-0.11 ppBuilding Products0.50%-0.09 ppHeavy Electrical Equipment0.48%+0.08 ppIndustrial Machinery & Supplies & Components0.89%-0.07 ppResearch & Consulting Services0.08%-0.06 ppAerospace & Defense2.54%-0.05 ppRail Transportation0.60%+0.05 ppAir Freight & Logistics0.33%+0.04 ppPassenger Airlines0.21%+0.04 ppData Processing & Outsourced Services0.03%-0.03 ppCargo Ground Transportation0.12%+0.03 ppAgricultural & Farm Machinery0.28%-0.02 ppTrading Companies & Distributors0.21%-0.02 pp
3 · Sub-industry
Inside Passenger Airlines
Passenger Airlines · weight
0.21%
Industry change · 12M
+0.04 pp
Passenger Airlines · contribution
+0.040 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jul 2026 · 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 |
|---|---|---|---|---|---|---|---|
| Delta Air Lines → DAL | United States | $57.5bn | 0.100% | +0.040 pp | +0.027 pp | +66.1% | Yes |
| United Airlines Holdings → UAL | United States | $39.4bn | 0.069% | +0.029 pp | +0.008 pp | +37.4% | Yes |
| Southwest Airlines → LUV | United States | $22.0bn | 0.038% | +0.013 pp | +0.004 pp | +48.1% | 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.