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 & Defense4.23%+0.23 ppAir Freight & Logistics0.87%+0.22 ppBuilding Products0.57%+0.20 ppIndustrial Machinery & Supplies & Components1.17%+0.20 ppAgricultural & Farm Machinery0.42%+0.17 ppIndustrial Conglomerates1.09%-0.12 ppPassenger Airlines0.31%+0.08 ppHuman Resource & Employment Services0.42%-0.08 ppConstruction Machinery & Heavy Transportation Equipment0.72%+0.07 ppHeavy Electrical Equipment0.07%+0.07 ppRail Transportation0.88%-0.07 ppTrading Companies & Distributors0.14%+0.03 ppEnvironmental & Facilities Services0.40%-0.03 ppDiversified Support Services0.11%-0.03 ppResearch & Consulting Services0.21%-0.02 ppConstruction & Engineering0.10%+0.02 ppElectrical Components & Equipment0.63%+0.02 ppCargo Ground Transportation0.11%+0.01 ppData Processing & Outsourced Services0.07%-0.01 ppPassenger Ground Transportation0.00%+0.00 pp
3 · Sub-industry
Inside Aerospace & Defense
Aerospace & Defense · weight
4.23%
Industry change · 12M
+0.23 pp
Aerospace & Defense · contribution
+0.230 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Apr 2021 · 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 | $574.1bn | 2.080% | +0.964 pp | +0.421 pp | +93.9% | Yes |
| Lockheed Martin → LMT | United States | $105.8bn | 0.383% | +0.167 pp | -0.227 pp | +0.5% | Yes |
| RTX Corporation → RTX | United States | $126.1bn | 0.457% | +0.214 pp | +0.143 pp | +32.3% | Yes |
| Northrop Grumman → NOC | United States | $57.1bn | 0.207% | +0.092 pp | -0.102 pp | +9.1% | Yes |
| L3Harris → LHX | United States | $43.0bn | 0.156% | +0.070 pp | -0.079 pp | +10.1% | Yes |
| Boeing → BA | United States | $137.0bn | 0.497% | +0.234 pp | +0.051 pp | +66.2% | Yes |
| Textron → TXT | United States | $14.5bn | 0.053% | +0.028 pp | +0.019 pp | +144.2% | Yes |
| Howmet Aerospace → HWM | United States | $13.9bn | 0.050% | +0.025 pp | +0.018 pp | +144.5% | Yes |
| General Dynamics → GD | United States | $53.8bn | 0.195% | +0.094 pp | -0.015 pp | +49.9% | Yes |
| Huntington Ingalls Industries → HII | United States | $8.6bn | 0.031% | +0.016 pp | -0.013 pp | +13.7% | Yes |
| TransDigm Group → TDG | United States | $33.6bn | 0.122% | +0.050 pp | +0.013 pp | +69.0% | 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.