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 & Defense6.55%-0.53 ppIndustrial Conglomerates1.21%-0.16 ppConstruction Machinery & Heavy Transportation Equipment0.71%-0.12 ppRail Transportation1.03%+0.09 ppIndustrial Machinery & Supplies & Components0.99%-0.09 ppData Processing & Outsourced Services0.08%+0.08 ppAir Freight & Logistics0.90%-0.08 ppHuman Resource & Employment Services0.51%+0.05 ppPassenger Airlines0.51%-0.04 ppBuilding Products0.43%-0.03 ppAgricultural & Farm Machinery0.28%-0.03 ppElectrical Components & Equipment0.69%-0.03 ppResearch & Consulting Services0.20%+0.02 ppTrading Companies & Distributors0.10%-0.01 ppCargo Ground Transportation0.08%+0.01 ppDiversified Support Services0.03%+0.00 ppConstruction & Engineering0.07%+0.00 ppEnvironmental & Facilities Services0.35%-0.00 ppHeavy Electrical Equipment0.00%+0.00 ppPassenger Ground Transportation0.00%+0.00 pp
3 · Sub-industry
Inside Aerospace & Defense
Aerospace & Defense · weight
6.55%
Industry change · 12M
-0.53 pp
Aerospace & Defense · contribution
-0.528 pp
Company participation
20%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jun 2018 · 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 | $566.5bn | 3.437% | -0.004 pp | -0.396 pp | -14.4% | No |
| Lockheed Martin → LMT | United States | $84.4bn | 0.512% | -0.080 pp | -0.069 pp | -15.8% | No |
| General Dynamics → GD | United States | $55.4bn | 0.336% | -0.066 pp | -0.043 pp | -15.9% | No |
| Boeing → BA | United States | $195.5bn | 1.186% | +0.002 pp | -0.018 pp | -4.4% | No |
| TransDigm Group → TDG | United States | $18.1bn | 0.110% | +0.011 pp | +0.016 pp | +8.9% | Yes |
| Textron → TXT | United States | $16.9bn | 0.102% | +0.008 pp | +0.014 pp | +12.4% | Yes |
| RTX Corporation → RTX | United States | $63.0bn | 0.382% | -0.007 pp | -0.014 pp | -8.4% | No |
| Northrop Grumman → NOC | United States | $53.7bn | 0.326% | -0.047 pp | -0.013 pp | -9.0% | No |
| L3Harris → LHX | United States | $17.2bn | 0.104% | -0.013 pp | -0.004 pp | -8.6% | No |
| Huntington Ingalls Industries → HII | United States | $9.6bn | 0.059% | -0.012 pp | -0.003 pp | -8.2% | 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.