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 & Defense3.11%-3.97 ppIndustrial Conglomerates0.67%-0.70 ppIndustrial Machinery & Supplies & Components0.53%-0.55 ppAir Freight & Logistics0.45%-0.53 ppConstruction Machinery & Heavy Transportation Equipment0.39%-0.44 ppElectrical Components & Equipment0.37%-0.35 ppRail Transportation0.60%-0.34 ppPassenger Airlines0.30%-0.26 ppBuilding Products0.24%-0.23 ppHuman Resource & Employment Services0.28%-0.17 ppAgricultural & Farm Machinery0.17%-0.13 ppEnvironmental & Facilities Services0.23%-0.12 ppResearch & Consulting Services0.11%-0.07 ppTrading Companies & Distributors0.05%-0.06 ppData Processing & Outsourced Services0.04%+0.04 ppCargo Ground Transportation0.04%-0.04 ppConstruction & Engineering0.04%-0.03 ppDiversified Support Services0.03%+0.00 ppHeavy Electrical Equipment0.00%+0.00 ppPassenger Ground Transportation0.00%+0.00 pp
3 · Sub-industry
Inside Aerospace & Defense
Aerospace & Defense · weight
3.11%
Industry change · 12M
-3.97 pp
Aerospace & Defense · contribution
-3.973 pp
Company participation
40%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jan 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 | $423.5bn | 1.397% | -0.030 pp | -2.436 pp | -35.4% | Yes |
| Boeing → BA | United States | $219.0bn | 0.722% | +0.039 pp | -0.482 pp | +11.0% | Yes |
| Lockheed Martin → LMT | United States | $82.4bn | 0.272% | -0.012 pp | -0.309 pp | -16.3% | No |
| General Dynamics → GD | United States | $50.7bn | 0.167% | -0.006 pp | -0.212 pp | -21.6% | No |
| RTX Corporation → RTX | United States | $59.5bn | 0.196% | -0.016 pp | -0.199 pp | -12.5% | No |
| Northrop Grumman → NOC | United States | $46.8bn | 0.154% | +0.000 pp | -0.184 pp | -17.8% | No |
| L3Harris → LHX | United States | $18.0bn | 0.060% | +0.000 pp | -0.048 pp | -2.3% | Yes |
| Textron → TXT | United States | $12.9bn | 0.043% | -0.002 pp | -0.045 pp | -9.2% | No |
| Huntington Ingalls Industries → HII | United States | $8.9bn | 0.029% | -0.003 pp | -0.032 pp | -12.0% | No |
| TransDigm Group → TDG | United States | $20.6bn | 0.068% | +0.009 pp | -0.026 pp | +23.4% | 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.