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 & Components1.03%-0.24 ppRail Transportation0.59%-0.23 ppHeavy Electrical Equipment0.22%+0.21 ppAir Freight & Logistics0.37%-0.15 ppConstruction Machinery & Heavy Transportation Equipment0.68%-0.15 ppElectrical Components & Equipment0.58%-0.14 ppPassenger Ground Transportation0.36%-0.12 ppDiversified Support Services0.34%+0.10 ppAerospace & Defense2.24%-0.08 ppTrading Companies & Distributors0.14%-0.05 ppEnvironmental & Facilities Services0.49%-0.04 ppResearch & Consulting Services0.16%-0.04 ppConstruction & Engineering0.12%-0.02 ppPassenger Airlines0.20%+0.02 ppHuman Resource & Employment Services0.41%-0.01 ppCargo Ground Transportation0.12%-0.01 ppBuilding Products0.55%+0.01 ppData Processing & Outsourced Services0.06%-0.01 ppIndustrial Conglomerates0.59%-0.00 ppAgricultural & Farm Machinery0.29%+0.00 pp
3 · Sub-industry
Inside Aerospace & Defense
Aerospace & Defense · weight
2.24%
Industry change · 12M
-0.08 pp
Aerospace & Defense · contribution
-0.083 pp
Company participation
42%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Feb 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 | $222.2bn | 0.497% | +0.062 pp | +0.106 pp | +66.4% | Yes |
| Boeing → BA | United States | $131.0bn | 0.293% | +0.081 pp | -0.063 pp | -14.3% | Yes |
| General Dynamics → GD | United States | $68.3bn | 0.153% | -0.020 pp | -0.062 pp | -5.7% | No |
| Lockheed Martin → LMT | United States | $106.0bn | 0.237% | -0.040 pp | -0.059 pp | +7.1% | No |
| RTX Corporation → RTX | United States | $177.2bn | 0.396% | +0.038 pp | +0.055 pp | +51.6% | Yes |
| Northrop Grumman → NOC | United States | $66.8bn | 0.149% | -0.008 pp | -0.049 pp | +1.4% | No |
| Howmet Aerospace → HWM | United States | $55.3bn | 0.124% | +0.018 pp | +0.045 pp | +105.9% | Yes |
| L3Harris → LHX | United States | $38.8bn | 0.087% | -0.016 pp | -0.028 pp | -0.6% | No |
| Axon Enterprise → AXON | United States | $40.5bn | 0.091% | -0.018 pp | +0.024 pp | +71.9% | No |
| Textron → TXT | United States | $13.6bn | 0.031% | -0.005 pp | -0.019 pp | -16.0% | No |
| Huntington Ingalls Industries → HII | United States | $6.9bn | 0.015% | -0.002 pp | -0.018 pp | -38.3% | No |
| TransDigm Group → TDG | United States | $76.7bn | 0.171% | +0.016 pp | -0.016 pp | +22.6% | 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.