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
Construction Machinery & Heavy Transportation Equipment1.02%+0.30 ppConstruction & Engineering0.37%+0.21 ppIndustrial Conglomerates0.39%-0.15 ppPassenger Ground Transportation0.25%-0.14 ppElectrical Components & Equipment0.78%+0.12 ppEnvironmental & Facilities Services0.34%-0.12 ppHuman Resource & Employment Services0.26%-0.12 ppDiversified Support Services0.22%-0.11 ppBuilding Products0.50%-0.09 ppHeavy Electrical Equipment0.48%+0.08 ppIndustrial Machinery & Supplies & Components0.89%-0.07 ppResearch & Consulting Services0.08%-0.06 ppAerospace & Defense2.54%-0.05 ppRail Transportation0.60%+0.05 ppAir Freight & Logistics0.33%+0.04 ppPassenger Airlines0.21%+0.04 ppData Processing & Outsourced Services0.03%-0.03 ppCargo Ground Transportation0.12%+0.03 ppAgricultural & Farm Machinery0.28%-0.02 ppTrading Companies & Distributors0.21%-0.02 pp
3 · Sub-industry
Inside Aerospace & Defense
Aerospace & Defense · weight
2.54%
Industry change · 12M
-0.05 pp
Aerospace & Defense · contribution
-0.052 pp
Company participation
92%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jul 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 | $70.2bn | 0.122% | +0.034 pp | -0.068 pp | -16.7% | Yes |
| RTX Corporation → RTX | United States | $290.1bn | 0.506% | +0.185 pp | +0.062 pp | +38.8% | Yes |
| Boeing → BA | United States | $170.8bn | 0.298% | +0.053 pp | -0.056 pp | -2.6% | Yes |
| Axon Enterprise → AXON | United States | $42.5bn | 0.074% | +0.030 pp | -0.050 pp | -30.1% | Yes |
| GE Aerospace → GE | United States | $373.6bn | 0.652% | +0.242 pp | +0.046 pp | +33.5% | Yes |
| Howmet Aerospace → HWM | United States | $112.9bn | 0.197% | +0.065 pp | +0.044 pp | +57.4% | Yes |
| Northrop Grumman → NOC | United States | $77.1bn | 0.135% | +0.023 pp | -0.040 pp | -4.4% | Yes |
| Lockheed Martin → LMT | United States | $134.5bn | 0.235% | +0.073 pp | +0.028 pp | +42.2% | Yes |
| L3Harris → LHX | United States | $51.6bn | 0.090% | +0.009 pp | -0.018 pp | +2.4% | No |
| General Dynamics → GD | United States | $103.7bn | 0.181% | +0.055 pp | +0.004 pp | +25.2% | Yes |
| Textron → TXT | United States | $14.7bn | 0.026% | +0.003 pp | -0.004 pp | +9.7% | Yes |
| Huntington Ingalls Industries → HII | United States | $12.9bn | 0.022% | +0.003 pp | -0.001 pp | +19.0% | 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.