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 & Defense0.00%-5.41 ppIndustrial Conglomerates0.00%-1.14 ppRail Transportation0.00%-1.11 ppIndustrial Machinery & Supplies & Components0.00%-0.91 ppAir Freight & Logistics0.00%-0.71 ppConstruction Machinery & Heavy Transportation Equipment0.00%-0.68 ppElectrical Components & Equipment0.00%-0.61 ppHuman Resource & Employment Services0.00%-0.58 ppEnvironmental & Facilities Services0.00%-0.48 ppPassenger Airlines0.00%-0.47 ppBuilding Products0.00%-0.46 ppAgricultural & Farm Machinery0.00%-0.26 ppResearch & Consulting Services0.00%-0.22 ppData Processing & Outsourced Services0.00%-0.08 ppConstruction & Engineering0.00%-0.08 ppTrading Companies & Distributors0.00%-0.08 ppDiversified Support Services0.00%-0.06 ppCargo Ground Transportation0.00%-0.05 ppHeavy Electrical Equipment0.00%+0.00 ppPassenger Ground Transportation0.00%+0.00 pp
3 · Sub-industry
Inside Construction & Engineering
Construction & Engineering · weight
0.00%
Industry change · 12M
-0.08 pp
Construction & Engineering · contribution
-0.079 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
May 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 |
|---|---|---|---|---|---|---|---|
| Jacobs Solutions → J | United States | $9.0bn | 0.000% | +0.000 pp | -0.049 pp | +12.5% | No |
| Quanta Services → PWR | United States | $5.1bn | 0.000% | +0.000 pp | -0.029 pp | +6.8% | 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.