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 & Defense5.90%-1.04 ppRail Transportation1.10%+0.15 ppIndustrial Conglomerates1.22%-0.13 ppHuman Resource & Employment Services0.55%+0.10 ppIndustrial Machinery & Supplies & Components0.97%-0.10 ppConstruction Machinery & Heavy Transportation Equipment0.73%-0.09 ppAir Freight & Logistics0.82%-0.09 ppEnvironmental & Facilities Services0.43%+0.07 ppData Processing & Outsourced Services0.07%+0.07 ppElectrical Components & Equipment0.67%-0.06 ppPassenger Airlines0.51%-0.04 ppBuilding Products0.44%-0.02 ppTrading Companies & Distributors0.09%-0.02 ppDiversified Support Services0.05%+0.02 ppResearch & Consulting Services0.20%+0.01 ppCargo Ground Transportation0.07%-0.01 ppAgricultural & Farm Machinery0.30%-0.01 ppConstruction & Engineering0.08%+0.01 ppHeavy Electrical Equipment0.00%+0.00 ppPassenger Ground Transportation0.00%+0.00 pp
3 · Sub-industry
Inside Aerospace & Defense
Aerospace & Defense · weight
5.90%
Industry change · 12M
-1.04 pp
Aerospace & Defense · contribution
-1.037 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Feb 2019 · 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 | $450.8bn | 2.613% | +1.574 pp | -0.906 pp | -21.9% | Yes |
| Boeing → BA | United States | $248.6bn | 1.441% | +0.787 pp | +0.163 pp | +23.9% | Yes |
| General Dynamics → GD | United States | $49.1bn | 0.284% | +0.102 pp | -0.111 pp | -22.0% | Yes |
| Lockheed Martin → LMT | United States | $87.4bn | 0.507% | +0.223 pp | -0.096 pp | -9.8% | Yes |
| Northrop Grumman → NOC | United States | $49.2bn | 0.285% | +0.135 pp | -0.080 pp | -15.5% | Yes |
| TransDigm Group → TDG | United States | $23.0bn | 0.133% | +0.070 pp | +0.043 pp | +50.6% | Yes |
| Textron → TXT | United States | $12.7bn | 0.074% | +0.029 pp | -0.020 pp | -9.2% | Yes |
| Huntington Ingalls Industries → HII | United States | $8.7bn | 0.050% | +0.020 pp | -0.020 pp | -18.9% | Yes |
| RTX Corporation → RTX | United States | $68.2bn | 0.395% | +0.191 pp | -0.011 pp | -4.6% | Yes |
| L3Harris → LHX | United States | $19.4bn | 0.113% | +0.057 pp | +0.002 pp | +7.4% | 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.