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 & Defense2.71%-4.37 ppIndustrial Conglomerates0.69%-0.68 ppIndustrial Machinery & Supplies & Components0.55%-0.53 ppAir Freight & Logistics0.52%-0.46 ppConstruction Machinery & Heavy Transportation Equipment0.39%-0.44 ppRail Transportation0.60%-0.34 ppElectrical Components & Equipment0.38%-0.34 ppPassenger Airlines0.33%-0.22 ppBuilding Products0.25%-0.22 ppHuman Resource & Employment Services0.30%-0.15 ppAgricultural & Farm Machinery0.17%-0.14 ppEnvironmental & Facilities Services0.24%-0.11 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
2.71%
Industry change · 12M
-4.37 pp
Aerospace & Defense · contribution
-4.373 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Nov 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 | $312.6bn | 1.039% | -0.701 pp | -2.794 pp | -52.4% | No |
| Boeing → BA | United States | $196.9bn | 0.654% | +0.019 pp | -0.550 pp | -0.2% | No |
| Lockheed Martin → LMT | United States | $85.5bn | 0.284% | -0.011 pp | -0.296 pp | -13.2% | No |
| General Dynamics → GD | United States | $54.8bn | 0.182% | -0.003 pp | -0.197 pp | -15.7% | No |
| RTX Corporation → RTX | United States | $61.4bn | 0.204% | -0.010 pp | -0.192 pp | -9.7% | No |
| Northrop Grumman → NOC | United States | $45.1bn | 0.150% | -0.018 pp | -0.188 pp | -22.5% | No |
| L3Harris → LHX | United States | $16.8bn | 0.056% | -0.006 pp | -0.052 pp | -8.8% | No |
| Textron → TXT | United States | $13.6bn | 0.045% | -0.010 pp | -0.043 pp | -4.2% | No |
| Huntington Ingalls Industries → HII | United States | $9.3bn | 0.031% | -0.003 pp | -0.031 pp | -8.1% | No |
| TransDigm Group → TDG | United States | $19.1bn | 0.063% | +0.004 pp | -0.031 pp | +14.1% | 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.