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 & Defense2.16%-1.41 ppIndustrial Conglomerates0.94%-0.22 ppAir Freight & Logistics0.79%-0.13 ppRail Transportation1.02%+0.11 ppHeavy Electrical Equipment0.11%+0.11 ppIndustrial Machinery & Supplies & Components1.10%-0.10 ppConstruction Machinery & Heavy Transportation Equipment0.61%-0.09 ppTrading Companies & Distributors0.15%+0.03 ppPassenger Airlines0.23%-0.02 ppElectrical Components & Equipment0.64%+0.02 ppCargo Ground Transportation0.14%+0.02 ppAgricultural & Farm Machinery0.35%+0.02 ppConstruction & Engineering0.11%+0.02 ppEnvironmental & Facilities Services0.42%+0.02 ppBuilding Products0.58%+0.02 ppResearch & Consulting Services0.23%+0.01 ppDiversified Support Services0.12%-0.01 ppData Processing & Outsourced Services0.07%-0.01 ppHuman Resource & Employment Services0.46%+0.00 ppPassenger Ground Transportation0.00%+0.00 pp
3 · Sub-industry
Inside Diversified Support Services
Diversified Support Services · weight
0.12%
Industry change · 12M
-0.01 pp
Diversified Support Services · contribution
-0.010 pp
Company participation
67%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Oct 2021 · 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 |
|---|---|---|---|---|---|---|---|
| Leidos → LDOS | United States | $14.2bn | 0.047% | -0.004 pp | -0.009 pp | +22.1% | No |
| Cintas → CTAS | United States | $11.2bn | 0.037% | +0.003 pp | -0.002 pp | +40.1% | Yes |
| Copart → CPRT | United States | $9.2bn | 0.031% | +0.001 pp | -0.000 pp | +40.7% | 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.