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
Construction Machinery & Heavy Transportation Equipment1.21%+0.54 ppHeavy Electrical Equipment0.58%+0.25 ppConstruction & Engineering0.40%+0.24 ppElectrical Components & Equipment0.84%+0.21 ppHuman Resource & Employment Services0.22%-0.17 ppPassenger Ground Transportation0.26%-0.17 ppDiversified Support Services0.19%-0.15 ppEnvironmental & Facilities Services0.34%-0.14 ppAerospace & Defense2.45%-0.10 ppResearch & Consulting Services0.07%-0.09 ppIndustrial Conglomerates0.49%-0.08 ppIndustrial Machinery & Supplies & Components0.89%-0.08 ppBuilding Products0.54%-0.06 ppPassenger Airlines0.23%+0.06 ppTrading Companies & Distributors0.22%+0.06 ppData Processing & Outsourced Services0.03%-0.03 ppAir Freight & Logistics0.34%+0.03 ppCargo Ground Transportation0.13%+0.02 ppRail Transportation0.56%+0.00 ppAgricultural & Farm Machinery0.30%+0.00 pp
3 · Sub-industry
Inside Aerospace & Defense
Aerospace & Defense · weight
2.45%
Industry change · 12M
-0.10 pp
Aerospace & Defense · contribution
-0.099 pp
Company participation
67%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jun 2026 · 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 | $389.9bn | 0.678% | +0.244 pp | +0.086 pp | +46.0% | Yes |
| Axon Enterprise → AXON | United States | $45.2bn | 0.079% | +0.029 pp | -0.060 pp | -32.3% | Yes |
| TransDigm Group → TDG | United States | $74.5bn | 0.129% | +0.034 pp | -0.055 pp | -6.4% | Yes |
| Boeing → BA | United States | $170.6bn | 0.297% | +0.069 pp | -0.044 pp | +3.3% | Yes |
| Lockheed Martin → LMT | United States | $117.5bn | 0.204% | +0.002 pp | -0.030 pp | +13.0% | No |
| Northrop Grumman → NOC | United States | $72.3bn | 0.126% | -0.015 pp | -0.029 pp | +3.5% | No |
| Howmet Aerospace → HWM | United States | $107.6bn | 0.187% | +0.052 pp | +0.025 pp | +44.8% | Yes |
| RTX Corporation → RTX | United States | $255.5bn | 0.444% | +0.067 pp | +0.023 pp | +32.0% | Yes |
| L3Harris → LHX | United States | $54.1bn | 0.094% | +0.000 pp | -0.007 pp | +17.7% | No |
| Textron → TXT | United States | $16.0bn | 0.028% | +0.006 pp | -0.004 pp | +14.4% | Yes |
| General Dynamics → GD | United States | $95.8bn | 0.166% | +0.031 pp | -0.002 pp | +23.7% | Yes |
| Huntington Ingalls Industries → HII | United States | $11.0bn | 0.019% | -0.003 pp | -0.001 pp | +17.9% | 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.