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 & Defense1.74%-0.70 ppRail Transportation0.57%-0.41 ppAir Freight & Logistics0.48%-0.32 ppIndustrial Conglomerates0.52%-0.31 ppHuman Resource & Employment Services0.30%-0.20 ppIndustrial Machinery & Supplies & Components0.83%-0.19 ppEnvironmental & Facilities Services0.32%-0.15 ppElectrical Components & Equipment0.48%-0.09 ppBuilding Products0.37%-0.09 ppConstruction Machinery & Heavy Transportation Equipment0.52%-0.09 ppAgricultural & Farm Machinery0.27%-0.08 ppResearch & Consulting Services0.14%-0.05 ppPassenger Airlines0.16%-0.04 ppHeavy Electrical Equipment0.02%-0.03 ppCargo Ground Transportation0.09%-0.03 ppConstruction & Engineering0.09%-0.03 ppData Processing & Outsourced Services0.05%-0.02 ppTrading Companies & Distributors0.11%-0.01 ppDiversified Support Services0.11%-0.01 ppPassenger Ground Transportation0.00%+0.00 pp
3 · Sub-industry
Inside Electrical Components & Equipment
Electrical Components & Equipment · weight
0.48%
Industry change · 12M
-0.09 pp
Electrical Components & Equipment · contribution
-0.089 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jun 2023 · 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 | $51.7bn | 0.119% | -0.050 pp | -0.064 pp | +16.4% | No |
| Ametek → AME | United States | $37.3bn | 0.086% | -0.028 pp | -0.012 pp | +48.3% | No |
| Eaton Corporation → ETN | United States | $80.2bn | 0.185% | -0.047 pp | -0.010 pp | +62.9% | No |
| Rockwell Automation → ROK | United States | $37.8bn | 0.088% | -0.027 pp | -0.003 pp | +68.2% | 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.