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
Industrial Machinery & Supplies & Components1.01%-0.24 ppAir Freight & Logistics0.32%-0.20 ppConstruction Machinery & Heavy Transportation Equipment0.64%-0.20 ppRail Transportation0.56%-0.20 ppElectrical Components & Equipment0.58%-0.17 ppDiversified Support Services0.39%+0.14 ppHeavy Electrical Equipment0.26%+0.11 ppAerospace & Defense2.45%-0.05 ppIndustrial Conglomerates0.58%-0.04 ppTrading Companies & Distributors0.15%-0.03 ppPassenger Airlines0.16%-0.03 ppAgricultural & Farm Machinery0.30%-0.01 ppConstruction & Engineering0.14%-0.01 ppHuman Resource & Employment Services0.42%+0.01 ppEnvironmental & Facilities Services0.54%-0.01 ppResearch & Consulting Services0.18%+0.01 ppPassenger Ground Transportation0.41%+0.01 ppCargo Ground Transportation0.11%+0.00 ppBuilding Products0.59%-0.00 ppData Processing & Outsourced Services0.07%+0.00 pp
3 · Sub-industry
Inside Aerospace & Defense
Aerospace & Defense · weight
2.45%
Industry change · 12M
-0.05 pp
Aerospace & Defense · contribution
-0.053 pp
Company participation
92%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Apr 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 |
|---|---|---|---|---|---|---|---|
| Howmet Aerospace → HWM | United States | $56.1bn | 0.135% | +0.020 pp | +0.055 pp | +108.2% | Yes |
| Lockheed Martin → LMT | United States | $111.9bn | 0.269% | +0.026 pp | -0.054 pp | +5.5% | Yes |
| General Dynamics → GD | United States | $73.0bn | 0.175% | +0.018 pp | -0.053 pp | -3.2% | Yes |
| Axon Enterprise → AXON | United States | $47.0bn | 0.113% | +0.002 pp | +0.044 pp | +95.5% | Yes |
| Northrop Grumman → NOC | United States | $70.0bn | 0.168% | +0.011 pp | -0.040 pp | +2.0% | Yes |
| Boeing → BA | United States | $138.2bn | 0.332% | +0.089 pp | +0.033 pp | +9.2% | Yes |
| L3Harris → LHX | United States | $41.1bn | 0.099% | +0.009 pp | -0.019 pp | +4.9% | Yes |
| Textron → TXT | United States | $12.7bn | 0.031% | -0.001 pp | -0.016 pp | -16.7% | No |
| RTX Corporation → RTX | United States | $168.5bn | 0.405% | +0.023 pp | +0.014 pp | +27.0% | Yes |
| TransDigm Group → TDG | United States | $79.3bn | 0.190% | +0.021 pp | -0.011 pp | +19.5% | Yes |
| Huntington Ingalls Industries → HII | United States | $9.0bn | 0.022% | +0.004 pp | -0.010 pp | -14.8% | Yes |
| GE Aerospace → GE | United States | $214.9bn | 0.516% | +0.026 pp | +0.003 pp | +25.4% | 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.