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 & Defense6.48%-0.60 ppIndustrial Conglomerates1.26%-0.11 ppConstruction Machinery & Heavy Transportation Equipment0.73%-0.10 ppRail Transportation1.04%+0.10 ppData Processing & Outsourced Services0.08%+0.08 ppIndustrial Machinery & Supplies & Components1.02%-0.06 ppHuman Resource & Employment Services0.49%+0.04 ppAgricultural & Farm Machinery0.27%-0.03 ppDiversified Support Services0.05%+0.03 ppAir Freight & Logistics0.96%-0.02 ppResearch & Consulting Services0.19%+0.01 ppTrading Companies & Distributors0.10%-0.01 ppEnvironmental & Facilities Services0.36%+0.01 ppBuilding Products0.46%-0.01 ppPassenger Airlines0.54%-0.01 ppElectrical Components & Equipment0.72%-0.00 ppConstruction & Engineering0.08%+0.00 ppCargo Ground Transportation0.08%+0.00 ppHeavy Electrical Equipment0.00%+0.00 ppPassenger Ground Transportation0.00%+0.00 pp
3 · Sub-industry
Inside Aerospace & Defense
Aerospace & Defense · weight
6.48%
Industry change · 12M
-0.60 pp
Aerospace & Defense · contribution
-0.597 pp
Company participation
40%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jul 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 | $567.7bn | 3.311% | -0.286 pp | -0.522 pp | -14.3% | No |
| Lockheed Martin → LMT | United States | $92.9bn | 0.542% | -0.021 pp | -0.039 pp | -7.0% | No |
| General Dynamics → GD | United States | $59.2bn | 0.345% | -0.022 pp | -0.034 pp | -9.4% | No |
| Northrop Grumman → NOC | United States | $52.3bn | 0.305% | -0.040 pp | -0.033 pp | -11.1% | No |
| TransDigm Group → TDG | United States | $19.7bn | 0.115% | +0.012 pp | +0.021 pp | +18.5% | Yes |
| Textron → TXT | United States | $17.0bn | 0.099% | +0.001 pp | +0.011 pp | +16.4% | Yes |
| Boeing → BA | United States | $204.7bn | 1.194% | -0.000 pp | -0.010 pp | +1.5% | No |
| L3Harris → LHX | United States | $19.6bn | 0.114% | +0.000 pp | +0.006 pp | +4.3% | Yes |
| RTX Corporation → RTX | United States | $68.3bn | 0.399% | +0.027 pp | +0.003 pp | -0.5% | Yes |
| Huntington Ingalls Industries → HII | United States | $10.4bn | 0.060% | -0.006 pp | -0.001 pp | -1.3% | 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.