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 & Defense4.04%-1.18 ppPassenger Airlines0.27%-0.17 ppIndustrial Machinery & Supplies & Components1.16%+0.15 ppAir Freight & Logistics0.83%+0.14 ppIndustrial Conglomerates1.20%-0.12 ppBuilding Products0.53%+0.11 ppAgricultural & Farm Machinery0.34%+0.07 ppHuman Resource & Employment Services0.44%-0.07 ppRail Transportation0.91%-0.05 ppEnvironmental & Facilities Services0.38%-0.04 ppResearch & Consulting Services0.23%+0.03 ppElectrical Components & Equipment0.62%-0.03 ppConstruction Machinery & Heavy Transportation Equipment0.67%-0.02 ppCargo Ground Transportation0.10%+0.02 ppTrading Companies & Distributors0.12%+0.01 ppConstruction & Engineering0.09%+0.01 ppData Processing & Outsourced Services0.07%+0.00 ppDiversified Support Services0.13%+0.00 ppHeavy Electrical Equipment0.00%+0.00 ppPassenger Ground Transportation0.00%+0.00 pp
3 · Sub-industry
Inside Diversified Support Services
Diversified Support Services · weight
0.13%
Industry change · 12M
+0.00 pp
Diversified Support Services · contribution
+0.000 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Dec 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 |
|---|---|---|---|---|---|---|---|
| Leidos → LDOS | United States | $15.0bn | 0.061% | +0.060 pp | -0.007 pp | +9.0% | Yes |
| Copart → CPRT | United States | $7.5bn | 0.030% | +0.030 pp | +0.004 pp | +39.9% | Yes |
| Cintas → CTAS | United States | $9.2bn | 0.037% | +0.037 pp | +0.003 pp | +32.7% | 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.