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 & Defense5.22%+2.47 ppIndustrial Conglomerates1.32%+0.65 ppIndustrial Machinery & Supplies & Components1.00%+0.48 ppRail Transportation0.96%+0.38 ppConstruction Machinery & Heavy Transportation Equipment0.70%+0.31 ppElectrical Components & Equipment0.65%+0.29 ppAir Freight & Logistics0.68%+0.23 ppHuman Resource & Employment Services0.51%+0.22 ppBuilding Products0.42%+0.19 ppEnvironmental & Facilities Services0.41%+0.17 ppPassenger Airlines0.43%+0.14 ppDiversified Support Services0.13%+0.10 ppResearch & Consulting Services0.20%+0.10 ppAgricultural & Farm Machinery0.27%+0.10 ppTrading Companies & Distributors0.11%+0.07 ppCargo Ground Transportation0.09%+0.05 ppConstruction & Engineering0.08%+0.04 ppData Processing & Outsourced Services0.07%+0.03 ppHeavy Electrical Equipment0.00%+0.00 ppPassenger Ground Transportation0.00%+0.00 pp
3 · Sub-industry
Inside Aerospace & Defense
Aerospace & Defense · weight
5.22%
Industry change · 12M
+2.47 pp
Aerospace & Defense · contribution
+2.468 pp
Company participation
30%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Dec 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 | $485.8bn | 2.383% | +0.318 pp | +1.255 pp | +53.9% | Yes |
| Lockheed Martin → LMT | United States | $109.8bn | 0.539% | -0.046 pp | +0.273 pp | +52.5% | No |
| Boeing → BA | United States | $183.3bn | 0.899% | -0.238 pp | +0.245 pp | +3.3% | No |
| RTX Corporation → RTX | United States | $81.4bn | 0.399% | +0.005 pp | +0.207 pp | +43.8% | Yes |
| L3Harris → LHX | United States | $43.7bn | 0.215% | -0.033 pp | +0.158 pp | +49.2% | No |
| Northrop Grumman → NOC | United States | $58.0bn | 0.284% | -0.052 pp | +0.132 pp | +42.7% | No |
| General Dynamics → GD | United States | $51.0bn | 0.250% | -0.030 pp | +0.084 pp | +14.8% | No |
| TransDigm Group → TDG | United States | $30.0bn | 0.147% | -0.000 pp | +0.083 pp | +84.4% | No |
| Huntington Ingalls Industries → HII | United States | $10.3bn | 0.050% | +0.004 pp | +0.021 pp | +34.0% | Yes |
| Textron → TXT | United States | $10.2bn | 0.050% | -0.010 pp | +0.010 pp | -2.9% | 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.