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
Rail Transportation0.77%-0.25 ppIndustrial Conglomerates0.75%-0.13 ppAerospace & Defense2.44%+0.11 ppIndustrial Machinery & Supplies & Components1.11%+0.08 ppPassenger Airlines0.18%-0.08 ppHuman Resource & Employment Services0.44%-0.05 ppConstruction Machinery & Heavy Transportation Equipment0.68%+0.05 ppAgricultural & Farm Machinery0.38%-0.04 ppAir Freight & Logistics0.69%-0.04 ppDiversified Support Services0.15%+0.03 ppHeavy Electrical Equipment0.02%-0.03 ppResearch & Consulting Services0.19%-0.02 ppElectrical Components & Equipment0.60%-0.01 ppConstruction & Engineering0.12%+0.01 ppEnvironmental & Facilities Services0.45%-0.01 ppBuilding Products0.49%+0.01 ppTrading Companies & Distributors0.14%-0.00 ppData Processing & Outsourced Services0.06%-0.00 ppCargo Ground Transportation0.12%-0.00 ppPassenger Ground Transportation0.00%+0.00 pp
3 · Sub-industry
Inside Aerospace & Defense
Aerospace & Defense · weight
2.44%
Industry change · 12M
+0.11 pp
Aerospace & Defense · contribution
+0.109 pp
Company participation
36%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Apr 2023 · 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 | $86.0bn | 0.290% | +0.050 pp | +0.106 pp | +70.8% | Yes |
| Boeing → BA | United States | $124.4bn | 0.420% | -0.016 pp | +0.102 pp | +38.9% | Yes |
| L3Harris → LHX | United States | $37.0bn | 0.125% | -0.015 pp | -0.037 pp | -14.3% | No |
| General Dynamics → GD | United States | $59.9bn | 0.202% | -0.017 pp | -0.035 pp | -5.6% | No |
| TransDigm Group → TDG | United States | $41.8bn | 0.141% | +0.008 pp | +0.022 pp | +32.3% | Yes |
| Lockheed Martin → LMT | United States | $117.6bn | 0.397% | -0.007 pp | -0.019 pp | +10.2% | No |
| RTX Corporation → RTX | United States | $146.0bn | 0.493% | -0.009 pp | -0.017 pp | +7.7% | No |
| Northrop Grumman → NOC | United States | $70.0bn | 0.237% | +0.002 pp | -0.010 pp | +6.5% | No |
| Howmet Aerospace → HWM | United States | $18.3bn | 0.062% | +0.004 pp | +0.010 pp | +30.2% | Yes |
| Textron → TXT | United States | $13.5bn | 0.046% | -0.006 pp | -0.008 pp | -3.2% | No |
| Huntington Ingalls Industries → HII | United States | $8.0bn | 0.027% | -0.003 pp | -0.004 pp | -3.1% | 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.