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
Passenger Ground Transportation0.26%+0.26 ppAir Freight & Logistics0.34%-0.13 ppHeavy Electrical Equipment0.11%+0.09 ppConstruction Machinery & Heavy Transportation Equipment0.56%+0.09 ppIndustrial Conglomerates0.44%-0.08 ppRail Transportation0.49%-0.07 ppBuilding Products0.41%+0.07 ppElectrical Components & Equipment0.51%+0.06 ppIndustrial Machinery & Supplies & Components0.83%+0.06 ppDiversified Support Services0.17%+0.06 ppAgricultural & Farm Machinery0.20%-0.06 ppAerospace & Defense1.71%-0.04 ppEnvironmental & Facilities Services0.36%+0.04 ppHuman Resource & Employment Services0.27%-0.03 ppTrading Companies & Distributors0.12%+0.03 ppCargo Ground Transportation0.10%+0.02 ppResearch & Consulting Services0.12%-0.02 ppPassenger Airlines0.13%-0.01 ppConstruction & Engineering0.10%+0.01 ppData Processing & Outsourced Services0.05%+0.00 pp
3 · Sub-industry
Inside Trading Companies & Distributors
Trading Companies & Distributors · weight
0.12%
Industry change · 12M
+0.03 pp
Trading Companies & Distributors · contribution
+0.027 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
May 2024 · 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 |
|---|---|---|---|---|---|---|---|
| United Rentals → URI | United States | $44.6bn | 0.085% | -0.048 pp | +0.029 pp | +102.8% | No |
| Fastenal → FAST | United States | $18.9bn | 0.036% | -0.024 pp | -0.002 pp | +26.2% | 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.