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 & Defense5.22%+2.47 ppIndustrial Conglomerates1.32%+0.65 ppIndustrial Machinery & Supplies & Components1.00%+0.48 ppRail Transportation0.96%+0.38 ppConstruction Machinery & Heavy Transportation Equipment0.70%+0.31 ppElectrical Components & Equipment0.65%+0.29 ppAir Freight & Logistics0.68%+0.23 ppHuman Resource & Employment Services0.51%+0.22 ppBuilding Products0.42%+0.19 ppEnvironmental & Facilities Services0.41%+0.17 ppPassenger Airlines0.43%+0.14 ppDiversified Support Services0.13%+0.10 ppResearch & Consulting Services0.20%+0.10 ppAgricultural & Farm Machinery0.27%+0.10 ppTrading Companies & Distributors0.11%+0.07 ppCargo Ground Transportation0.09%+0.05 ppConstruction & Engineering0.08%+0.04 ppData Processing & Outsourced Services0.07%+0.03 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
+0.10 pp
Diversified Support Services · contribution
+0.102 pp
Company participation
67%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Dec 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 |
|---|---|---|---|---|---|---|---|
| Leidos → LDOS | United States | $13.9bn | 0.068% | +0.002 pp | +0.068 pp | +88.8% | Yes |
| Cintas → CTAS | United States | $7.0bn | 0.034% | -0.002 pp | +0.018 pp | +61.7% | No |
| Copart → CPRT | United States | $5.3bn | 0.026% | +0.001 pp | +0.016 pp | +90.3% | 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.