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 & Defense5.63%+2.52 ppIndustrial Conglomerates1.21%+0.55 ppIndustrial Machinery & Supplies & Components0.97%+0.44 ppRail Transportation0.98%+0.38 ppElectrical Components & Equipment0.63%+0.26 ppConstruction Machinery & Heavy Transportation Equipment0.63%+0.25 ppHuman Resource & Employment Services0.52%+0.23 ppEnvironmental & Facilities Services0.45%+0.21 ppBuilding Products0.41%+0.18 ppAir Freight & Logistics0.62%+0.17 ppPassenger Airlines0.41%+0.12 ppResearch & Consulting Services0.22%+0.11 ppDiversified Support Services0.13%+0.11 ppAgricultural & Farm Machinery0.25%+0.07 ppTrading Companies & Distributors0.10%+0.05 ppCargo Ground Transportation0.08%+0.04 ppConstruction & Engineering0.08%+0.04 ppData Processing & Outsourced Services0.07%+0.03 ppHeavy Electrical Equipment0.00%+0.00 ppPassenger Ground Transportation0.00%+0.00 pp
3 · Sub-industry
Inside Electrical Components & Equipment
Electrical Components & Equipment · weight
0.63%
Industry change · 12M
+0.26 pp
Electrical Components & Equipment · contribution
+0.260 pp
Company participation
50%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jan 2020 · 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 |
|---|---|---|---|---|---|---|---|
| Eaton Corporation → ETN | United States | $39.1bn | 0.193% | +0.005 pp | +0.084 pp | +28.2% | Yes |
| Emerson Electric → EMR | United States | $43.6bn | 0.215% | -0.010 pp | +0.080 pp | +12.8% | No |
| Ametek → AME | United States | $22.2bn | 0.110% | +0.000 pp | +0.054 pp | +34.1% | No |
| Rockwell Automation → ROK | United States | $22.3bn | 0.110% | +0.005 pp | +0.043 pp | +15.7% | 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.