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 & Defense2.57%+0.86 ppBuilding Products0.62%+0.22 ppHeavy Electrical Equipment0.31%+0.20 ppDiversified Support Services0.36%+0.19 ppIndustrial Machinery & Supplies & Components1.00%+0.17 ppEnvironmental & Facilities Services0.52%+0.16 ppHuman Resource & Employment Services0.43%+0.15 ppIndustrial Conglomerates0.59%+0.15 ppPassenger Ground Transportation0.40%+0.14 ppAgricultural & Farm Machinery0.31%+0.11 ppConstruction Machinery & Heavy Transportation Equipment0.66%+0.11 ppElectrical Components & Equipment0.61%+0.10 ppRail Transportation0.56%+0.07 ppResearch & Consulting Services0.17%+0.05 ppPassenger Airlines0.17%+0.05 ppConstruction & Engineering0.15%+0.04 ppTrading Companies & Distributors0.16%+0.04 ppAir Freight & Logistics0.31%-0.02 ppData Processing & Outsourced Services0.06%+0.02 ppCargo Ground Transportation0.11%+0.00 pp
3 · Sub-industry
Inside Aerospace & Defense
Aerospace & Defense · weight
2.57%
Industry change · 12M
+0.86 pp
Aerospace & Defense · contribution
+0.862 pp
Company participation
83%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
May 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 | $262.2bn | 0.594% | +0.097 pp | +0.249 pp | +49.9% | Yes |
| Boeing → BA | United States | $156.3bn | 0.354% | +0.061 pp | +0.146 pp | +16.7% | Yes |
| RTX Corporation → RTX | United States | $182.3bn | 0.413% | +0.017 pp | +0.139 pp | +29.3% | Yes |
| Axon Enterprise → AXON | United States | $58.4bn | 0.132% | +0.042 pp | +0.092 pp | +166.4% | Yes |
| Howmet Aerospace → HWM | United States | $68.6bn | 0.155% | +0.032 pp | +0.089 pp | +101.3% | Yes |
| TransDigm Group → TDG | United States | $82.5bn | 0.187% | +0.015 pp | +0.043 pp | +15.4% | Yes |
| Lockheed Martin → LMT | United States | $113.0bn | 0.256% | +0.019 pp | +0.040 pp | +5.2% | Yes |
| Northrop Grumman → NOC | United States | $69.8bn | 0.158% | +0.009 pp | +0.031 pp | +8.9% | No |
| L3Harris → LHX | United States | $45.7bn | 0.103% | +0.017 pp | +0.022 pp | +10.9% | Yes |
| General Dynamics → GD | United States | $74.7bn | 0.169% | +0.017 pp | +0.012 pp | -5.2% | Yes |
| Textron → TXT | United States | $13.4bn | 0.030% | -0.000 pp | -0.002 pp | -15.4% | No |
| Huntington Ingalls Industries → HII | United States | $8.8bn | 0.020% | +0.004 pp | +0.001 pp | -9.6% | 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.