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 & Defense5.29%+2.16 ppIndustrial Conglomerates1.37%+0.70 ppIndustrial Machinery & Supplies & Components0.98%+0.47 ppRail Transportation0.94%+0.36 ppConstruction Machinery & Heavy Transportation Equipment0.69%+0.33 ppElectrical Components & Equipment0.63%+0.26 ppHuman Resource & Employment Services0.52%+0.23 ppAir Freight & Logistics0.71%+0.22 ppBuilding Products0.45%+0.21 ppEnvironmental & Facilities Services0.44%+0.21 ppPassenger Airlines0.46%+0.16 ppAgricultural & Farm Machinery0.29%+0.14 ppResearch & Consulting Services0.21%+0.10 ppDiversified Support Services0.12%+0.10 ppTrading Companies & Distributors0.11%+0.06 ppConstruction & Engineering0.09%+0.04 ppData Processing & Outsourced Services0.07%+0.03 ppCargo Ground Transportation0.07%+0.02 ppHeavy Electrical Equipment0.00%+0.00 ppPassenger Ground Transportation0.00%+0.00 pp
3 · Sub-industry
Inside Aerospace & Defense
Aerospace & Defense · weight
5.29%
Industry change · 12M
+2.16 pp
Aerospace & Defense · contribution
+2.158 pp
Company participation
40%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Oct 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 | $434.4bn | 2.264% | -0.155 pp | +0.837 pp | +3.2% | Yes |
| Boeing → BA | United States | $191.3bn | 0.997% | -0.025 pp | +0.314 pp | -2.1% | No |
| Lockheed Martin → LMT | United States | $106.3bn | 0.554% | +0.010 pp | +0.270 pp | +31.7% | No |
| RTX Corporation → RTX | United States | $78.0bn | 0.407% | +0.021 pp | +0.194 pp | +18.3% | Yes |
| L3Harris → LHX | United States | $45.6bn | 0.238% | +0.107 pp | +0.178 pp | +41.0% | Yes |
| Northrop Grumman → NOC | United States | $59.4bn | 0.310% | -0.002 pp | +0.155 pp | +36.8% | No |
| General Dynamics → GD | United States | $51.1bn | 0.267% | -0.019 pp | +0.093 pp | +4.8% | No |
| TransDigm Group → TDG | United States | $28.1bn | 0.146% | +0.009 pp | +0.087 pp | +68.7% | Yes |
| Huntington Ingalls Industries → HII | United States | $9.3bn | 0.049% | -0.002 pp | +0.017 pp | +5.0% | No |
| Textron → TXT | United States | $10.5bn | 0.055% | -0.006 pp | +0.011 pp | -13.9% | 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.