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 & Defense1.77%-0.69 ppIndustrial Machinery & Supplies & Components0.66%-0.35 ppHuman Resource & Employment Services0.16%-0.26 ppEnvironmental & Facilities Services0.28%-0.26 ppDiversified Support Services0.16%-0.23 ppIndustrial Conglomerates0.37%-0.21 ppPassenger Ground Transportation0.21%-0.20 ppConstruction Machinery & Heavy Transportation Equipment0.83%+0.19 ppBuilding Products0.41%-0.18 ppConstruction & Engineering0.31%+0.17 ppHeavy Electrical Equipment0.42%+0.16 ppRail Transportation0.43%-0.13 ppResearch & Consulting Services0.06%-0.12 ppAgricultural & Farm Machinery0.22%-0.09 ppElectrical Components & Equipment0.64%+0.06 ppAir Freight & Logistics0.27%-0.06 ppData Processing & Outsourced Services0.02%-0.04 ppPassenger Airlines0.13%-0.03 ppCargo Ground Transportation0.09%-0.02 ppTrading Companies & Distributors0.15%-0.00 pp
3 · Sub-industry
Inside Aerospace & Defense
Aerospace & Defense · weight
1.77%
Industry change · 12M
-0.69 pp
Aerospace & Defense · contribution
-0.689 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Apr 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 |
|---|---|---|---|---|---|---|---|
| Lockheed Martin → LMT | United States | $119.4bn | 0.162% | -0.117 pp | -0.107 pp | +11.4% | No |
| GE Aerospace → GE | United States | $302.5bn | 0.410% | -0.205 pp | -0.106 pp | +44.6% | No |
| TransDigm Group → TDG | United States | $65.5bn | 0.089% | -0.065 pp | -0.101 pp | -12.3% | No |
| Boeing → BA | United States | $180.5bn | 0.245% | -0.106 pp | -0.087 pp | +25.0% | No |
| RTX Corporation → RTX | United States | $237.1bn | 0.322% | -0.194 pp | -0.083 pp | +42.0% | No |
| Axon Enterprise → AXON | United States | $32.3bn | 0.044% | -0.029 pp | -0.069 pp | -34.5% | No |
| Northrop Grumman → NOC | United States | $82.3bn | 0.112% | -0.076 pp | -0.056 pp | +21.0% | No |
| General Dynamics → GD | United States | $93.1bn | 0.126% | -0.055 pp | -0.049 pp | +28.9% | No |
| L3Harris → LHX | United States | $59.7bn | 0.081% | -0.042 pp | -0.018 pp | +48.2% | No |
| Textron → TXT | United States | $16.7bn | 0.023% | -0.007 pp | -0.008 pp | +36.5% | No |
| Howmet Aerospace → HWM | United States | $97.4bn | 0.132% | -0.028 pp | -0.003 pp | +75.8% | No |
| Huntington Ingalls Industries → HII | United States | $14.3bn | 0.019% | -0.012 pp | -0.002 pp | +61.1% | 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.