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
Rail Transportation1.01%+0.57 ppIndustrial Machinery & Supplies & Components1.09%+0.53 ppAir Freight & Logistics0.79%+0.40 ppAerospace & Defense2.48%+0.34 ppIndustrial Conglomerates0.87%+0.32 ppElectrical Components & Equipment0.62%+0.30 ppBuilding Products0.52%+0.24 ppHuman Resource & Employment Services0.45%+0.23 ppEnvironmental & Facilities Services0.40%+0.21 ppConstruction Machinery & Heavy Transportation Equipment0.58%+0.20 ppAgricultural & Farm Machinery0.38%+0.16 ppResearch & Consulting Services0.19%+0.10 ppCargo Ground Transportation0.14%+0.09 ppHeavy Electrical Equipment0.07%+0.07 ppPassenger Airlines0.23%+0.07 ppTrading Companies & Distributors0.13%+0.06 ppDiversified Support Services0.11%+0.05 ppConstruction & Engineering0.10%+0.05 ppData Processing & Outsourced Services0.06%+0.03 ppPassenger Ground Transportation0.00%+0.00 pp
3 · Sub-industry
Inside Environmental & Facilities Services
Environmental & Facilities Services · weight
0.40%
Industry change · 12M
+0.21 pp
Environmental & Facilities Services · contribution
+0.212 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Feb 2022 · 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 | $59.9bn | 0.208% | -0.019 pp | +0.114 pp | +32.3% | No |
| Republic Services → RSG | United States | $38.1bn | 0.132% | -0.010 pp | +0.075 pp | +37.1% | No |
| Rollins, Inc. → ROL | United States | $16.1bn | 0.056% | +0.000 pp | +0.023 pp | -0.4% | 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.