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 & Defense2.09%-0.31 ppRail Transportation0.58%-0.24 ppHeavy Electrical Equipment0.23%+0.20 ppIndustrial Machinery & Supplies & Components1.03%-0.19 ppAir Freight & Logistics0.39%-0.18 ppDiversified Support Services0.34%+0.11 ppIndustrial Conglomerates0.58%-0.10 ppPassenger Ground Transportation0.29%-0.09 ppAgricultural & Farm Machinery0.26%-0.07 ppConstruction Machinery & Heavy Transportation Equipment0.70%-0.07 ppEnvironmental & Facilities Services0.43%-0.06 ppElectrical Components & Equipment0.63%-0.05 ppBuilding Products0.57%+0.05 ppPassenger Airlines0.21%+0.04 ppResearch & Consulting Services0.16%-0.03 ppHuman Resource & Employment Services0.38%-0.03 ppTrading Companies & Distributors0.15%-0.02 ppData Processing & Outsourced Services0.06%-0.01 ppConstruction & Engineering0.14%+0.01 ppCargo Ground Transportation0.12%-0.00 pp
3 · Sub-industry
Inside Aerospace & Defense
Aerospace & Defense · weight
2.09%
Industry change · 12M
-0.31 pp
Aerospace & Defense · contribution
-0.315 pp
Company participation
25%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Dec 2024 · 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 |
|---|---|---|---|---|---|---|---|
| Boeing → BA | United States | $109.4bn | 0.248% | +0.030 pp | -0.222 pp | -32.1% | Yes |
| GE Aerospace → GE | United States | $180.5bn | 0.409% | -0.067 pp | +0.079 pp | +64.8% | No |
| Lockheed Martin → LMT | United States | $115.2bn | 0.261% | -0.063 pp | -0.074 pp | +10.0% | No |
| Northrop Grumman → NOC | United States | $68.4bn | 0.155% | -0.025 pp | -0.055 pp | +1.9% | No |
| General Dynamics → GD | United States | $72.5bn | 0.164% | -0.029 pp | -0.047 pp | +3.5% | No |
| Axon Enterprise → AXON | United States | $45.3bn | 0.103% | +0.032 pp | +0.045 pp | +130.1% | Yes |
| Howmet Aerospace → HWM | United States | $44.4bn | 0.101% | +0.006 pp | +0.034 pp | +102.7% | Yes |
| L3Harris → LHX | United States | $39.9bn | 0.090% | -0.015 pp | -0.029 pp | +1.9% | No |
| Textron → TXT | United States | $14.2bn | 0.032% | -0.006 pp | -0.015 pp | -4.8% | No |
| Huntington Ingalls Industries → HII | United States | $7.4bn | 0.017% | -0.007 pp | -0.014 pp | -25.7% | No |
| RTX Corporation → RTX | United States | $154.0bn | 0.349% | -0.026 pp | -0.012 pp | +40.8% | No |
| TransDigm Group → TDG | United States | $71.3bn | 0.162% | -0.025 pp | -0.005 pp | +32.3% | 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.