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 & Defense4.00%-1.54 ppPassenger Airlines0.22%-0.28 ppRail Transportation0.95%-0.17 ppAir Freight & Logistics0.65%-0.13 ppBuilding Products0.37%-0.09 ppDiversified Support Services0.14%+0.08 ppConstruction Machinery & Heavy Transportation Equipment0.64%-0.08 ppHuman Resource & Employment Services0.49%-0.08 ppElectrical Components & Equipment0.61%-0.06 ppAgricultural & Farm Machinery0.25%-0.04 ppCargo Ground Transportation0.09%+0.04 ppEnvironmental & Facilities Services0.43%-0.02 ppResearch & Consulting Services0.23%+0.02 ppTrading Companies & Distributors0.11%+0.02 ppIndustrial Conglomerates1.21%+0.01 ppIndustrial Machinery & Supplies & Components0.98%-0.00 ppConstruction & Engineering0.08%-0.00 ppData Processing & Outsourced Services0.07%-0.00 ppHeavy Electrical Equipment0.00%+0.00 ppPassenger Ground Transportation0.00%+0.00 pp
3 · Sub-industry
Inside Aerospace & Defense
Aerospace & Defense · weight
4.00%
Industry change · 12M
-1.54 pp
Aerospace & Defense · contribution
-1.537 pp
Company participation
91%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Apr 2020 · 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 | $296.5bn | 1.659% | -1.014 pp | -0.804 pp | -32.9% | Yes |
| Boeing → BA | United States | $79.6bn | 0.445% | -0.439 pp | -0.739 pp | -61.8% | No |
| L3Harris → LHX | United States | $42.0bn | 0.235% | -0.006 pp | +0.125 pp | +16.7% | Yes |
| RTX Corporation → RTX | United States | $56.1bn | 0.314% | -0.089 pp | -0.117 pp | -26.2% | Yes |
| Lockheed Martin → LMT | United States | $109.1bn | 0.611% | +0.015 pp | +0.086 pp | +19.6% | Yes |
| General Dynamics → GD | United States | $37.5bn | 0.210% | -0.041 pp | -0.078 pp | -25.0% | Yes |
| Textron → TXT | United States | $6.0bn | 0.034% | -0.018 pp | -0.035 pp | -50.2% | Yes |
| Northrop Grumman → NOC | United States | $55.1bn | 0.309% | -0.001 pp | +0.034 pp | +15.8% | Yes |
| TransDigm Group → TDG | United States | $19.5bn | 0.109% | -0.061 pp | -0.033 pp | -15.7% | Yes |
| Howmet Aerospace → HWM | United States | $5.7bn | 0.032% | +0.032 pp | +0.032 pp | -20.4% | Yes |
| Huntington Ingalls Industries → HII | United States | $7.8bn | 0.044% | -0.009 pp | -0.008 pp | -12.5% | 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.