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 & Defense5.52%-1.24 ppHuman Resource & Employment Services0.57%+0.12 ppRail Transportation1.10%+0.12 ppIndustrial Machinery & Supplies & Components0.97%-0.11 ppAir Freight & Logistics0.82%-0.10 ppEnvironmental & Facilities Services0.45%+0.10 ppConstruction Machinery & Heavy Transportation Equipment0.72%-0.08 ppPassenger Airlines0.49%-0.08 ppIndustrial Conglomerates1.23%-0.07 ppData Processing & Outsourced Services0.07%+0.07 ppElectrical Components & Equipment0.67%-0.06 ppTrading Companies & Distributors0.08%-0.03 ppDiversified Support Services0.05%+0.02 ppAgricultural & Farm Machinery0.29%-0.02 ppCargo Ground Transportation0.06%-0.02 ppResearch & Consulting Services0.21%+0.01 ppBuilding Products0.45%-0.01 ppConstruction & Engineering0.08%+0.01 ppHeavy Electrical Equipment0.00%+0.00 ppPassenger Ground Transportation0.00%+0.00 pp
3 · Sub-industry
Inside Aerospace & Defense
Aerospace & Defense · weight
5.52%
Industry change · 12M
-1.24 pp
Aerospace & Defense · contribution
-1.239 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Mar 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 |
|---|---|---|---|---|---|---|---|
| GE Aerospace → GE | United States | $433.4bn | 2.490% | +1.362 pp | -0.951 pp | -21.3% | Yes |
| General Dynamics → GD | United States | $48.8bn | 0.280% | +0.114 pp | -0.122 pp | -21.9% | Yes |
| Northrop Grumman → NOC | United States | $45.8bn | 0.263% | +0.111 pp | -0.110 pp | -21.5% | Yes |
| Lockheed Martin → LMT | United States | $84.8bn | 0.487% | +0.221 pp | -0.105 pp | -8.7% | Yes |
| Boeing → BA | United States | $215.5bn | 1.238% | +0.583 pp | +0.054 pp | +18.6% | Yes |
| TransDigm Group → TDG | United States | $24.0bn | 0.138% | +0.074 pp | +0.040 pp | +47.9% | Yes |
| Textron → TXT | United States | $11.9bn | 0.068% | +0.028 pp | -0.026 pp | -14.0% | Yes |
| Huntington Ingalls Industries → HII | United States | $8.6bn | 0.049% | +0.020 pp | -0.021 pp | -18.5% | Yes |
| RTX Corporation → RTX | United States | $69.9bn | 0.402% | +0.210 pp | +0.013 pp | +4.8% | Yes |
| L3Harris → LHX | United States | $18.8bn | 0.108% | +0.051 pp | -0.009 pp | +0.7% | 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.