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 & Defense3.45%-3.63 ppIndustrial Conglomerates0.70%-0.67 ppIndustrial Machinery & Supplies & Components0.56%-0.52 ppAir Freight & Logistics0.54%-0.44 ppConstruction Machinery & Heavy Transportation Equipment0.39%-0.44 ppRail Transportation0.59%-0.36 ppElectrical Components & Equipment0.40%-0.32 ppPassenger Airlines0.32%-0.23 ppBuilding Products0.25%-0.21 ppHuman Resource & Employment Services0.29%-0.16 ppAgricultural & Farm Machinery0.15%-0.16 ppEnvironmental & Facilities Services0.20%-0.15 ppResearch & Consulting Services0.12%-0.06 ppTrading Companies & Distributors0.06%-0.05 ppData Processing & Outsourced Services0.05%+0.05 ppCargo Ground Transportation0.04%-0.03 ppConstruction & Engineering0.04%-0.03 ppDiversified Support Services0.03%+0.00 ppHeavy Electrical Equipment0.00%+0.00 ppPassenger Ground Transportation0.00%+0.00 pp
3 · Sub-industry
Inside Aerospace & Defense
Aerospace & Defense · weight
3.45%
Industry change · 12M
-3.63 pp
Aerospace & Defense · contribution
-3.634 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Aug 2018 · 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 | $539.0bn | 1.740% | -1.816 pp | -2.093 pp | -18.6% | No |
| Boeing → BA | United States | $196.9bn | 0.636% | -0.609 pp | -0.568 pp | -1.8% | No |
| Lockheed Martin → LMT | United States | $91.2bn | 0.295% | -0.250 pp | -0.286 pp | -8.1% | No |
| General Dynamics → GD | United States | $57.3bn | 0.185% | -0.179 pp | -0.194 pp | -12.3% | No |
| RTX Corporation → RTX | United States | $66.3bn | 0.214% | -0.167 pp | -0.182 pp | -3.0% | No |
| Northrop Grumman → NOC | United States | $52.0bn | 0.168% | -0.178 pp | -0.170 pp | -11.4% | No |
| L3Harris → LHX | United States | $19.1bn | 0.062% | -0.047 pp | -0.046 pp | +2.7% | No |
| TransDigm Group → TDG | United States | $18.4bn | 0.059% | -0.047 pp | -0.034 pp | +10.4% | No |
| Textron → TXT | United States | $17.1bn | 0.055% | -0.048 pp | -0.033 pp | +17.7% | No |
| Huntington Ingalls Industries → HII | United States | $10.6bn | 0.034% | -0.026 pp | -0.027 pp | +3.8% | 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.