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 & Defense5.20%+1.75 ppIndustrial Conglomerates1.41%+0.71 ppIndustrial Machinery & Supplies & Components0.95%+0.39 ppRail Transportation0.97%+0.38 ppHuman Resource & Employment Services0.56%+0.27 ppEnvironmental & Facilities Services0.47%+0.27 ppConstruction Machinery & Heavy Transportation Equipment0.65%+0.25 ppAir Freight & Logistics0.77%+0.23 ppBuilding Products0.44%+0.19 ppElectrical Components & Equipment0.59%+0.19 ppPassenger Airlines0.48%+0.15 ppResearch & Consulting Services0.24%+0.12 ppAgricultural & Farm Machinery0.27%+0.12 ppDiversified Support Services0.13%+0.10 ppTrading Companies & Distributors0.09%+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
5.20%
Industry change · 12M
+1.75 pp
Aerospace & Defense · contribution
+1.748 pp
Company participation
50%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Aug 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 |
|---|---|---|---|---|---|---|---|
| Boeing → BA | United States | $204.9bn | 1.114% | -0.005 pp | +0.479 pp | +8.5% | No |
| Lockheed Martin → LMT | United States | $108.5bn | 0.590% | +0.033 pp | +0.295 pp | +23.1% | Yes |
| GE Aerospace → GE | United States | $358.8bn | 1.952% | -0.438 pp | +0.212 pp | -32.8% | No |
| L3Harris → LHX | United States | $47.2bn | 0.257% | +0.128 pp | +0.195 pp | +32.3% | Yes |
| Northrop Grumman → NOC | United States | $62.2bn | 0.339% | +0.039 pp | +0.171 pp | +24.9% | Yes |
| RTX Corporation → RTX | United States | $70.7bn | 0.385% | -0.015 pp | +0.171 pp | +1.2% | No |
| General Dynamics → GD | United States | $55.2bn | 0.300% | +0.030 pp | +0.116 pp | +1.1% | Yes |
| TransDigm Group → TDG | United States | $28.7bn | 0.156% | +0.020 pp | +0.097 pp | +62.9% | Yes |
| Huntington Ingalls Industries → HII | United States | $8.6bn | 0.047% | -0.003 pp | +0.013 pp | -13.1% | No |
| Textron → TXT | United States | $10.4bn | 0.056% | -0.005 pp | +0.001 pp | -34.7% | 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.