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 & Defense5.63%+2.52 ppIndustrial Conglomerates1.21%+0.55 ppIndustrial Machinery & Supplies & Components0.97%+0.44 ppRail Transportation0.98%+0.38 ppElectrical Components & Equipment0.63%+0.26 ppConstruction Machinery & Heavy Transportation Equipment0.63%+0.25 ppHuman Resource & Employment Services0.52%+0.23 ppEnvironmental & Facilities Services0.45%+0.21 ppBuilding Products0.41%+0.18 ppAir Freight & Logistics0.62%+0.17 ppPassenger Airlines0.41%+0.12 ppResearch & Consulting Services0.22%+0.11 ppDiversified Support Services0.13%+0.11 ppAgricultural & Farm Machinery0.25%+0.07 ppTrading Companies & Distributors0.10%+0.05 ppCargo Ground Transportation0.08%+0.04 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 Environmental & Facilities Services
Environmental & Facilities Services · weight
0.45%
Industry change · 12M
+0.21 pp
Environmental & Facilities Services · contribution
+0.211 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jan 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 |
|---|---|---|---|---|---|---|---|
| Waste Management → WM | United States | $51.6bn | 0.255% | +0.007 pp | +0.120 pp | +29.6% | Yes |
| Republic Services → RSG | United States | $30.3bn | 0.150% | +0.004 pp | +0.068 pp | +26.2% | Yes |
| Rollins, Inc. → ROL | United States | $8.3bn | 0.041% | -0.002 pp | +0.023 pp | +3.2% | 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.