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 & Defense5.52%+2.81 ppIndustrial Conglomerates1.35%+0.66 ppIndustrial Machinery & Supplies & Components0.99%+0.44 ppRail Transportation0.96%+0.36 ppConstruction Machinery & Heavy Transportation Equipment0.71%+0.32 ppElectrical Components & Equipment0.65%+0.27 ppHuman Resource & Employment Services0.53%+0.23 ppAir Freight & Logistics0.72%+0.20 ppEnvironmental & Facilities Services0.42%+0.19 ppBuilding Products0.43%+0.19 ppPassenger Airlines0.46%+0.13 ppAgricultural & Farm Machinery0.27%+0.10 ppResearch & Consulting Services0.21%+0.10 ppDiversified Support Services0.12%+0.10 ppTrading Companies & Distributors0.11%+0.06 ppConstruction & Engineering0.08%+0.04 ppData Processing & Outsourced Services0.07%+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
5.52%
Industry change · 12M
+2.81 pp
Aerospace & Defense · contribution
+2.809 pp
Company participation
50%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Nov 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 | $490.6bn | 2.471% | +0.520 pp | +1.433 pp | +57.0% | Yes |
| Boeing → BA | United States | $206.1bn | 1.038% | -0.076 pp | +0.384 pp | +8.0% | No |
| Lockheed Martin → LMT | United States | $110.3bn | 0.556% | -0.034 pp | +0.272 pp | +33.5% | No |
| RTX Corporation → RTX | United States | $80.6bn | 0.406% | +0.021 pp | +0.202 pp | +24.5% | Yes |
| L3Harris → LHX | United States | $44.5bn | 0.224% | -0.033 pp | +0.168 pp | +42.8% | Yes |
| Northrop Grumman → NOC | United States | $59.3bn | 0.299% | -0.040 pp | +0.149 pp | +37.5% | No |
| TransDigm Group → TDG | United States | $30.4bn | 0.153% | -0.003 pp | +0.090 pp | +66.0% | Yes |
| General Dynamics → GD | United States | $52.6bn | 0.265% | -0.036 pp | +0.083 pp | +0.6% | No |
| Huntington Ingalls Industries → HII | United States | $10.3bn | 0.052% | +0.005 pp | +0.021 pp | +18.7% | Yes |
| Textron → TXT | United States | $10.6bn | 0.053% | -0.003 pp | +0.008 pp | -17.5% | 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.