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 & Defense6.82%-0.26 ppIndustrial Conglomerates1.22%-0.14 ppIndustrial Machinery & Supplies & Components1.01%-0.07 ppRail Transportation0.99%+0.05 ppConstruction Machinery & Heavy Transportation Equipment0.78%-0.05 ppAgricultural & Farm Machinery0.27%-0.04 ppElectrical Components & Equipment0.69%-0.03 ppBuilding Products0.44%-0.03 ppPassenger Airlines0.53%-0.02 ppResearch & Consulting Services0.19%+0.01 ppTrading Companies & Distributors0.10%-0.01 ppAir Freight & Logistics0.97%-0.01 ppCargo Ground Transportation0.08%+0.00 ppEnvironmental & Facilities Services0.35%-0.00 ppHuman Resource & Employment Services0.46%+0.00 ppDiversified Support Services0.03%+0.00 ppConstruction & Engineering0.07%-0.00 ppData Processing & Outsourced Services0.00%+0.00 ppHeavy Electrical Equipment0.00%+0.00 ppPassenger Ground Transportation0.00%+0.00 pp
3 · Sub-industry
Inside Aerospace & Defense
Aerospace & Defense · weight
6.82%
Industry change · 12M
-0.26 pp
Aerospace & Defense · contribution
-0.260 pp
Company participation
40%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Apr 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 | $585.5bn | 3.598% | -0.235 pp | -0.235 pp | -12.3% | Yes |
| RTX Corporation → RTX | United States | $60.5bn | 0.372% | -0.024 pp | -0.024 pp | -12.5% | No |
| Lockheed Martin → LMT | United States | $91.6bn | 0.563% | -0.017 pp | -0.017 pp | -9.1% | No |
| General Dynamics → GD | United States | $59.8bn | 0.367% | -0.011 pp | -0.011 pp | -9.1% | No |
| Boeing → BA | United States | $194.3bn | 1.194% | -0.010 pp | -0.010 pp | -5.4% | No |
| Textron → TXT | United States | $15.9bn | 0.098% | +0.010 pp | +0.010 pp | +6.0% | Yes |
| TransDigm Group → TDG | United States | $16.7bn | 0.103% | +0.009 pp | +0.009 pp | +1.2% | Yes |
| Northrop Grumman → NOC | United States | $56.2bn | 0.345% | +0.007 pp | +0.007 pp | -5.1% | No |
| L3Harris → LHX | United States | $18.6bn | 0.114% | +0.006 pp | +0.006 pp | -1.5% | Yes |
| Huntington Ingalls Industries → HII | United States | $10.9bn | 0.067% | +0.006 pp | +0.006 pp | +2.7% | 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.