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 & Defense5.35%-1.14 ppIndustrial Conglomerates2.18%+0.92 ppAir Freight & Logistics0.78%-0.18 ppIndustrial Machinery & Supplies & Components0.91%-0.11 ppElectrical Components & Equipment0.60%-0.11 ppEnvironmental & Facilities Services0.45%+0.09 ppPassenger Airlines0.48%-0.06 ppHuman Resource & Employment Services0.54%+0.05 ppConstruction Machinery & Heavy Transportation Equipment0.69%-0.04 ppResearch & Consulting Services0.22%+0.03 ppCargo Ground Transportation0.06%-0.02 ppDiversified Support Services0.06%+0.01 ppAgricultural & Farm Machinery0.28%+0.01 ppConstruction & Engineering0.08%+0.00 ppTrading Companies & Distributors0.10%+0.00 ppBuilding Products0.46%+0.00 ppRail Transportation1.04%+0.00 ppData Processing & Outsourced Services0.08%+0.00 ppHeavy Electrical Equipment0.00%+0.00 ppPassenger Ground Transportation0.00%+0.00 pp
3 · Sub-industry
Inside Electrical Components & Equipment
Electrical Components & Equipment · weight
0.60%
Industry change · 12M
-0.11 pp
Electrical Components & Equipment · contribution
-0.111 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jul 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 |
|---|---|---|---|---|---|---|---|
| Emerson Electric → EMR | United States | $39.9bn | 0.212% | -0.031 pp | -0.053 pp | -7.6% | No |
| Rockwell Automation → ROK | United States | $18.8bn | 0.100% | -0.019 pp | -0.035 pp | -12.4% | No |
| Eaton Corporation → ETN | United States | $34.5bn | 0.184% | -0.012 pp | -0.027 pp | +0.6% | No |
| Ametek → AME | United States | $20.4bn | 0.109% | -0.003 pp | +0.004 pp | +16.0% | 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.