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 & Defense5.63%+2.52 ppIndustrial Conglomerates1.21%+0.55 ppIndustrial Machinery & Supplies & Components0.97%+0.44 ppRail Transportation0.98%+0.38 ppElectrical Components & Equipment0.63%+0.26 ppConstruction Machinery & Heavy Transportation Equipment0.63%+0.25 ppHuman Resource & Employment Services0.52%+0.23 ppEnvironmental & Facilities Services0.45%+0.21 ppBuilding Products0.41%+0.18 ppAir Freight & Logistics0.62%+0.17 ppPassenger Airlines0.41%+0.12 ppResearch & Consulting Services0.22%+0.11 ppDiversified Support Services0.13%+0.11 ppAgricultural & Farm Machinery0.25%+0.07 ppTrading Companies & Distributors0.10%+0.05 ppCargo Ground Transportation0.08%+0.04 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
5.63%
Industry change · 12M
+2.52 pp
Aerospace & Defense · contribution
+2.524 pp
Company participation
60%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jan 2020 · 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 | $541.9bn | 2.674% | +0.409 pp | +1.277 pp | +28.0% | Yes |
| Lockheed Martin → LMT | United States | $120.8bn | 0.596% | +0.042 pp | +0.324 pp | +51.6% | Yes |
| RTX Corporation → RTX | United States | $81.6bn | 0.403% | -0.004 pp | +0.206 pp | +30.1% | Yes |
| L3Harris → LHX | United States | $48.9bn | 0.241% | +0.004 pp | +0.182 pp | +46.7% | Yes |
| Boeing → BA | United States | $179.2bn | 0.884% | -0.113 pp | +0.162 pp | -15.6% | No |
| Northrop Grumman → NOC | United States | $62.8bn | 0.310% | +0.000 pp | +0.156 pp | +38.1% | No |
| TransDigm Group → TDG | United States | $34.4bn | 0.170% | +0.024 pp | +0.102 pp | +84.2% | Yes |
| General Dynamics → GD | United States | $50.8bn | 0.250% | -0.016 pp | +0.083 pp | +4.9% | No |
| Huntington Ingalls Industries → HII | United States | $10.7bn | 0.053% | +0.004 pp | +0.023 pp | +28.5% | Yes |
| Textron → TXT | United States | $10.5bn | 0.052% | -0.003 pp | +0.009 pp | -13.6% | 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.