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 & Defense2.59%+0.31 ppIndustrial Machinery & Supplies & Components0.92%-0.19 ppHeavy Electrical Equipment0.35%+0.17 ppAir Freight & Logistics0.27%-0.15 ppRail Transportation0.55%-0.09 ppDiversified Support Services0.30%+0.08 ppIndustrial Conglomerates0.51%-0.08 ppConstruction & Engineering0.22%+0.08 ppTrading Companies & Distributors0.24%+0.06 ppCargo Ground Transportation0.09%-0.05 ppHuman Resource & Employment Services0.33%-0.05 ppPassenger Ground Transportation0.41%+0.04 ppBuilding Products0.54%-0.04 ppResearch & Consulting Services0.13%-0.04 ppEnvironmental & Facilities Services0.43%-0.03 ppAgricultural & Farm Machinery0.25%-0.02 ppElectrical Components & Equipment0.61%-0.01 ppPassenger Airlines0.17%+0.01 ppConstruction Machinery & Heavy Transportation Equipment0.74%-0.00 ppData Processing & Outsourced Services0.06%-0.00 pp
3 · Sub-industry
Inside Aerospace & Defense
Aerospace & Defense · weight
2.59%
Industry change · 12M
+0.31 pp
Aerospace & Defense · contribution
+0.306 pp
Company participation
58%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Sep 2025 · 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 | $319.0bn | 0.639% | +0.047 pp | +0.163 pp | +60.5% | Yes |
| Boeing → BA | United States | $163.2bn | 0.327% | -0.014 pp | +0.109 pp | +42.0% | No |
| Lockheed Martin → LMT | United States | $116.5bn | 0.233% | -0.001 pp | -0.091 pp | -12.2% | No |
| RTX Corporation → RTX | United States | $224.0bn | 0.448% | +0.028 pp | +0.073 pp | +40.9% | Yes |
| Howmet Aerospace → HWM | United States | $79.1bn | 0.158% | -0.004 pp | +0.063 pp | +96.3% | Yes |
| Axon Enterprise → AXON | United States | $56.3bn | 0.113% | -0.026 pp | +0.042 pp | +79.6% | No |
| TransDigm Group → TDG | United States | $74.3bn | 0.149% | -0.035 pp | -0.038 pp | +4.2% | No |
| General Dynamics → GD | United States | $91.7bn | 0.184% | +0.015 pp | -0.010 pp | +15.2% | Yes |
| L3Harris → LHX | United States | $57.1bn | 0.114% | +0.013 pp | +0.009 pp | +30.9% | Yes |
| Textron → TXT | United States | $15.1bn | 0.030% | -0.001 pp | -0.008 pp | -4.5% | No |
| Northrop Grumman → NOC | United States | $87.2bn | 0.175% | +0.019 pp | -0.005 pp | +17.4% | Yes |
| Huntington Ingalls Industries → HII | United States | $11.3bn | 0.023% | +0.002 pp | -0.002 pp | +11.7% | 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.