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
Heavy Electrical Equipment0.25%+0.23 ppRail Transportation0.60%-0.21 ppAir Freight & Logistics0.36%-0.17 ppIndustrial Machinery & Supplies & Components1.06%-0.16 ppAerospace & Defense2.20%-0.14 ppDiversified Support Services0.35%+0.12 ppPassenger Ground Transportation0.31%-0.09 ppConstruction Machinery & Heavy Transportation Equipment0.72%-0.07 ppPassenger Airlines0.21%+0.05 ppEnvironmental & Facilities Services0.46%-0.04 ppBuilding Products0.55%+0.04 ppAgricultural & Farm Machinery0.29%-0.04 ppHuman Resource & Employment Services0.39%-0.04 ppElectrical Components & Equipment0.62%-0.03 ppResearch & Consulting Services0.17%-0.03 ppIndustrial Conglomerates0.59%-0.03 ppTrading Companies & Distributors0.16%-0.03 ppConstruction & Engineering0.14%+0.01 ppData Processing & Outsourced Services0.06%-0.01 ppCargo Ground Transportation0.13%+0.00 pp
3 · Sub-industry
Inside Aerospace & Defense
Aerospace & Defense · weight
2.20%
Industry change · 12M
-0.14 pp
Aerospace & Defense · contribution
-0.136 pp
Company participation
42%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jan 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 | $220.3bn | 0.490% | +0.053 pp | +0.148 pp | +93.9% | Yes |
| Boeing → BA | United States | $109.1bn | 0.243% | +0.026 pp | -0.140 pp | -16.4% | Yes |
| Lockheed Martin → LMT | United States | $109.0bn | 0.242% | -0.062 pp | -0.066 pp | +10.6% | No |
| General Dynamics → GD | United States | $70.7bn | 0.157% | -0.031 pp | -0.058 pp | -1.1% | No |
| Axon Enterprise → AXON | United States | $49.7bn | 0.111% | +0.035 pp | +0.055 pp | +161.9% | Yes |
| Howmet Aerospace → HWM | United States | $51.4bn | 0.114% | +0.019 pp | +0.045 pp | +125.7% | Yes |
| Northrop Grumman → NOC | United States | $70.5bn | 0.157% | -0.017 pp | -0.042 pp | +10.9% | No |
| L3Harris → LHX | United States | $40.2bn | 0.089% | -0.021 pp | -0.028 pp | +3.8% | No |
| Textron → TXT | United States | $14.2bn | 0.032% | -0.004 pp | -0.018 pp | -9.6% | No |
| Huntington Ingalls Industries → HII | United States | $7.7bn | 0.017% | +0.000 pp | -0.013 pp | -22.2% | No |
| TransDigm Group → TDG | United States | $76.1bn | 0.169% | -0.003 pp | -0.010 pp | +30.8% | No |
| RTX Corporation → RTX | United States | $171.6bn | 0.382% | +0.003 pp | -0.008 pp | +44.8% | 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.