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%-0.18 ppConstruction Machinery & Heavy Transportation Equipment0.76%+0.17 ppIndustrial Machinery & Supplies & Components1.16%+0.15 ppElectrical Components & Equipment0.70%+0.14 ppAir Freight & Logistics0.64%-0.12 ppIndustrial Conglomerates0.69%-0.10 ppAerospace & Defense2.37%+0.08 ppEnvironmental & Facilities Services0.41%-0.06 ppBuilding Products0.52%+0.06 ppHuman Resource & Employment Services0.47%-0.05 ppDiversified Support Services0.15%+0.04 ppTrading Companies & Distributors0.16%+0.03 ppHeavy Electrical Equipment0.02%-0.03 ppConstruction & Engineering0.14%+0.02 ppAgricultural & Farm Machinery0.38%-0.02 ppCargo Ground Transportation0.14%+0.02 ppPassenger Airlines0.20%+0.01 ppResearch & Consulting Services0.19%+0.00 ppData Processing & Outsourced Services0.07%-0.00 ppPassenger Ground Transportation0.00%+0.00 pp
3 · Sub-industry
Inside Aerospace & Defense
Aerospace & Defense · weight
2.37%
Industry change · 12M
+0.08 pp
Aerospace & Defense · contribution
+0.083 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Aug 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 | $99.4bn | 0.317% | +0.099 pp | +0.137 pp | +100.4% | Yes |
| Boeing → BA | United States | $135.1bn | 0.431% | +0.125 pp | +0.090 pp | +39.8% | Yes |
| RTX Corporation → RTX | United States | $125.2bn | 0.399% | +0.067 pp | -0.075 pp | -1.8% | Yes |
| Northrop Grumman → NOC | United States | $65.5bn | 0.209% | +0.045 pp | -0.056 pp | -8.0% | Yes |
| Axon Enterprise → AXON | United States | $15.9bn | 0.051% | +0.016 pp | +0.051 pp | +82.5% | Yes |
| L3Harris → LHX | United States | $33.7bn | 0.107% | +0.025 pp | -0.049 pp | -20.2% | Yes |
| TransDigm Group → TDG | United States | $49.9bn | 0.159% | +0.054 pp | +0.042 pp | +50.5% | Yes |
| Lockheed Martin → LMT | United States | $112.9bn | 0.360% | +0.082 pp | -0.039 pp | +9.5% | Yes |
| General Dynamics → GD | United States | $61.9bn | 0.197% | +0.059 pp | -0.027 pp | +1.3% | Yes |
| Howmet Aerospace → HWM | United States | $20.4bn | 0.065% | +0.021 pp | +0.012 pp | +40.2% | Yes |
| Huntington Ingalls Industries → HII | United States | $8.8bn | 0.028% | +0.008 pp | -0.005 pp | -2.1% | Yes |
| Textron → TXT | United States | $15.4bn | 0.049% | +0.018 pp | +0.002 pp | +24.7% | Yes |
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.