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 & Defense2.14%+2.13 ppIndustrial Machinery & Supplies & Components0.57%+0.57 ppIndustrial Conglomerates0.54%+0.54 ppRail Transportation0.45%+0.45 ppAir Freight & Logistics0.39%+0.39 ppConstruction Machinery & Heavy Transportation Equipment0.38%+0.38 ppElectrical Components & Equipment0.32%+0.32 ppBuilding Products0.27%+0.27 ppAgricultural & Farm Machinery0.22%+0.22 ppHuman Resource & Employment Services0.21%+0.21 ppEnvironmental & Facilities Services0.18%+0.18 ppPassenger Airlines0.16%+0.16 ppResearch & Consulting Services0.09%+0.09 ppTrading Companies & Distributors0.07%+0.07 ppDiversified Support Services0.05%+0.05 ppCargo Ground Transportation0.05%+0.05 ppConstruction & Engineering0.05%+0.05 ppData Processing & Outsourced Services0.03%+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
0.18%
Industry change · 12M
+0.18 pp
Environmental & Facilities Services · contribution
+0.183 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Feb 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 |
|---|---|---|---|---|---|---|---|
| Waste Management → WM | United States | $46.9bn | 0.094% | -0.120 pp | +0.094 pp | +2.0% | No |
| Republic Services → RSG | United States | $28.4bn | 0.057% | -0.074 pp | +0.057 pp | +0.6% | No |
| Rollins, Inc. → ROL | United States | $16.3bn | 0.033% | -0.020 pp | +0.033 pp | +34.1% | 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.