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 Transportation0.44%+0.44 ppAir Freight & Logistics0.53%-0.20 ppConstruction Machinery & Heavy Transportation Equipment0.87%+0.16 ppIndustrial Machinery & Supplies & Components1.28%+0.14 ppIndustrial Conglomerates0.61%-0.12 ppAerospace & Defense2.36%-0.12 ppDiversified Support Services0.25%+0.11 ppElectrical Components & Equipment0.74%+0.10 ppAgricultural & Farm Machinery0.32%-0.10 ppEnvironmental & Facilities Services0.53%+0.09 ppBuilding Products0.56%+0.05 ppTrading Companies & Distributors0.20%+0.05 ppHuman Resource & Employment Services0.41%-0.05 ppConstruction & Engineering0.15%+0.03 ppRail Transportation0.78%-0.02 ppPassenger Airlines0.18%-0.01 ppData Processing & Outsourced Services0.07%+0.01 ppCargo Ground Transportation0.12%-0.00 ppHeavy Electrical Equipment0.02%-0.00 ppResearch & Consulting Services0.19%-0.00 pp
3 · Sub-industry
Inside Cargo Ground Transportation
Cargo Ground Transportation · weight
0.12%
Industry change · 12M
-0.00 pp
Cargo Ground Transportation · contribution
-0.003 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Mar 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 |
|---|---|---|---|---|---|---|---|
| J.B. Hunt → JBHT | United States | $20.6bn | 0.057% | -0.004 pp | -0.005 pp | +14.6% | No |
| Old Dominion → ODFL | United States | $23.9bn | 0.066% | +0.000 pp | +0.002 pp | +29.2% | 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.