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 & Defense1.93%-0.45 ppIndustrial Machinery & Supplies & Components0.69%-0.33 ppHuman Resource & Employment Services0.17%-0.26 ppEnvironmental & Facilities Services0.30%-0.22 ppDiversified Support Services0.17%-0.20 ppIndustrial Conglomerates0.41%-0.19 ppRail Transportation0.41%-0.18 ppBuilding Products0.39%-0.17 ppPassenger Ground Transportation0.22%-0.15 ppHeavy Electrical Equipment0.36%+0.14 ppConstruction & Engineering0.26%+0.14 ppAir Freight & Logistics0.26%-0.11 ppResearch & Consulting Services0.07%-0.10 ppAgricultural & Farm Machinery0.22%-0.08 ppConstruction Machinery & Heavy Transportation Equipment0.74%+0.07 ppData Processing & Outsourced Services0.03%-0.04 ppPassenger Airlines0.13%-0.03 ppCargo Ground Transportation0.09%-0.03 ppElectrical Components & Equipment0.58%+0.02 ppTrading Companies & Distributors0.14%-0.01 pp
3 · Sub-industry
Inside Aerospace & Defense
Aerospace & Defense · weight
1.93%
Industry change · 12M
-0.45 pp
Aerospace & Defense · contribution
-0.448 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Mar 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 |
|---|---|---|---|---|---|---|---|
| TransDigm Group → TDG | United States | $65.5bn | 0.095% | -0.051 pp | -0.089 pp | -10.5% | No |
| GE Aerospace → GE | United States | $297.6bn | 0.433% | -0.203 pp | -0.077 pp | +42.5% | No |
| Boeing → BA | United States | $156.3bn | 0.228% | -0.096 pp | -0.076 pp | +16.7% | No |
| Lockheed Martin → LMT | United States | $139.1bn | 0.203% | -0.017 pp | -0.047 pp | +39.0% | No |
| Axon Enterprise → AXON | United States | $34.1bn | 0.050% | -0.038 pp | -0.046 pp | -19.3% | No |
| RTX Corporation → RTX | United States | $258.9bn | 0.377% | -0.105 pp | -0.042 pp | +48.1% | No |
| General Dynamics → GD | United States | $92.8bn | 0.135% | -0.043 pp | -0.040 pp | +28.3% | No |
| Northrop Grumman → NOC | United States | $96.8bn | 0.141% | -0.018 pp | -0.035 pp | +35.4% | No |
| Howmet Aerospace → HWM | United States | $92.4bn | 0.135% | -0.027 pp | +0.010 pp | +78.1% | No |
| Textron → TXT | United States | $15.2bn | 0.022% | -0.008 pp | -0.009 pp | +21.3% | No |
| Huntington Ingalls Industries → HII | United States | $14.9bn | 0.022% | -0.004 pp | +0.003 pp | +89.7% | No |
| L3Harris → LHX | United States | $64.5bn | 0.094% | -0.014 pp | +0.000 pp | +67.7% | 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.