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 & Defense5.30%+2.00 ppIndustrial Conglomerates1.41%+0.71 ppIndustrial Machinery & Supplies & Components0.97%+0.40 ppRail Transportation0.96%+0.34 ppConstruction Machinery & Heavy Transportation Equipment0.67%+0.26 ppEnvironmental & Facilities Services0.45%+0.25 ppHuman Resource & Employment Services0.53%+0.24 ppAir Freight & Logistics0.75%+0.23 ppElectrical Components & Equipment0.62%+0.21 ppBuilding Products0.44%+0.20 ppPassenger Airlines0.47%+0.16 ppAgricultural & Farm Machinery0.28%+0.13 ppResearch & Consulting Services0.23%+0.11 ppDiversified Support Services0.13%+0.10 ppTrading Companies & Distributors0.10%+0.04 ppConstruction & Engineering0.08%+0.04 ppData Processing & Outsourced Services0.08%+0.03 ppCargo Ground Transportation0.06%+0.02 ppHeavy Electrical Equipment0.00%+0.00 ppPassenger Ground Transportation0.00%+0.00 pp
3 · Sub-industry
Inside Aerospace & Defense
Aerospace & Defense · weight
5.30%
Industry change · 12M
+2.00 pp
Aerospace & Defense · contribution
+1.996 pp
Company participation
50%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Sep 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 | $388.9bn | 2.065% | -0.395 pp | +0.567 pp | -17.3% | No |
| Boeing → BA | United States | $214.1bn | 1.137% | +0.033 pp | +0.456 pp | +4.5% | Yes |
| Lockheed Martin → LMT | United States | $110.2bn | 0.585% | +0.031 pp | +0.271 pp | +15.8% | Yes |
| L3Harris → LHX | United States | $46.6bn | 0.247% | +0.127 pp | +0.184 pp | +25.3% | Yes |
| RTX Corporation → RTX | United States | $74.1bn | 0.394% | +0.013 pp | +0.169 pp | -0.1% | No |
| Northrop Grumman → NOC | United States | $63.4bn | 0.337% | +0.041 pp | +0.161 pp | +20.1% | Yes |
| General Dynamics → GD | United States | $52.8bn | 0.280% | -0.003 pp | +0.087 pp | -8.8% | No |
| TransDigm Group → TDG | United States | $27.8bn | 0.147% | +0.009 pp | +0.085 pp | +48.1% | Yes |
| Huntington Ingalls Industries → HII | United States | $8.8bn | 0.046% | -0.004 pp | +0.011 pp | -15.9% | No |
| Textron → TXT | United States | $11.3bn | 0.060% | -0.007 pp | +0.003 pp | -31.4% | 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.