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 & Defense2.55%+0.35 ppIndustrial Machinery & Supplies & Components0.89%-0.20 ppAir Freight & Logistics0.30%-0.12 ppHeavy Electrical Equipment0.33%+0.11 ppHuman Resource & Employment Services0.29%-0.11 ppRail Transportation0.51%-0.10 ppDiversified Support Services0.27%-0.10 ppConstruction & Engineering0.23%+0.08 ppConstruction Machinery & Heavy Transportation Equipment0.82%+0.08 ppEnvironmental & Facilities Services0.39%-0.08 ppResearch & Consulting Services0.11%-0.06 ppIndustrial Conglomerates0.52%-0.06 ppCargo Ground Transportation0.09%-0.05 ppPassenger Ground Transportation0.39%+0.04 ppPassenger Airlines0.16%-0.03 ppTrading Companies & Distributors0.20%+0.02 ppAgricultural & Farm Machinery0.24%-0.02 ppBuilding Products0.54%-0.01 ppElectrical Components & Equipment0.62%-0.01 ppData Processing & Outsourced Services0.05%-0.01 pp
3 · Sub-industry
Inside Aerospace & Defense
Aerospace & Defense · weight
2.55%
Industry change · 12M
+0.35 pp
Aerospace & Defense · contribution
+0.349 pp
Company participation
42%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Oct 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 | $325.9bn | 0.638% | +0.032 pp | +0.201 pp | +81.0% | Yes |
| RTX Corporation → RTX | United States | $239.3bn | 0.469% | +0.024 pp | +0.090 pp | +50.5% | Yes |
| Boeing → BA | United States | $152.8bn | 0.299% | -0.054 pp | +0.082 pp | +34.6% | No |
| Lockheed Martin → LMT | United States | $113.8bn | 0.223% | +0.016 pp | -0.081 pp | -7.4% | No |
| Howmet Aerospace → HWM | United States | $82.8bn | 0.162% | +0.009 pp | +0.067 pp | +107.1% | Yes |
| Axon Enterprise → AXON | United States | $57.5bn | 0.113% | -0.011 pp | +0.037 pp | +72.9% | No |
| TransDigm Group → TDG | United States | $73.7bn | 0.144% | -0.046 pp | -0.027 pp | +7.4% | No |
| Northrop Grumman → NOC | United States | $83.3bn | 0.163% | -0.011 pp | -0.011 pp | +16.6% | No |
| Huntington Ingalls Industries → HII | United States | $12.6bn | 0.025% | +0.002 pp | +0.008 pp | +78.6% | Yes |
| Textron → TXT | United States | $14.2bn | 0.028% | -0.001 pp | -0.007 pp | +0.6% | No |
| General Dynamics → GD | United States | $93.2bn | 0.183% | +0.006 pp | -0.006 pp | +20.7% | Yes |
| L3Harris → LHX | United States | $54.1bn | 0.106% | -0.002 pp | -0.004 pp | +19.1% | 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.