What Hub Group, Inc. told the SEC could break it.

Hub Group's revenue is concentrated in a small set of large shippers. In 2024 a single (unnamed) customer accounted for more than 10% of annual revenue in both reportable segments — 14% of Intermodal & Transportation Solutions, 16% of Logistics, and ~15% of total operating revenue (consistent across 2022-2024). Its 10 largest customers were ~44% of total revenue and its top 50 ~68%. While some dedicated/logistics contracts are multi-year, they contain cancellation clauses, so the loss of, or a volume pullback by, the largest customer would have an outsized effect on results.

“Hub's top 50 customers represent approximately 68% of revenue for fiscal 2024 while one customer accounted for more than 10% of our annual revenue in 2024 in both segments.”

Hub Group's intermodal and logistics volumes ride on the flow of imported goods through U.S. ports onto rail, so trade policy hits it on the demand side: it warns that changes to U.S. international trade agreements may lead to fewer goods transported, requiring it to restructure terms with suppliers or customers, and that reshoring-oriented initiatives (IRA, CHIPS Act) plus tariffs/trade restrictions could reduce demand for its intermodal services. It is also exposed on the cost side — its containers are manufactured in China (tariff-sensitive equipment) — and through its growing Mexico operations (51%-owned EASO), where U.S.-Mexico relations and tariffs affect cross-border freight.

“changes to current United States international trade agreements may lead to fewer goods transported and we may need to restructure certain terms of business with suppliers or customers.”

As an asset-light intermodal/logistics provider, Hub Group depends on third parties for the equipment and services essential to operate — transportation equipment such as tractors, containers, chassis and trailers, and services including transportation (notably Class I railroads for intermodal moves), warehousing and cross-docks. The industry has periodically experienced equipment, transportation and warehouse capacity constraints; if Hub cannot secure sufficient equipment, rail capacity or drayage at acceptable cost, it could lose customers and revenue. This reliance on a limited set of rail carriers and equipment providers is a core operational supply dependency.

“We depend on third parties for transportation equipment, such as tractors, containers, chassis, and trailers and certain services such as transportation, warehousing and cross docks necessary for the operation of our business.”

Hub Group operates company-owned drayage and dedicated trucking fleets, making fuel (diesel) a significant cost and a supply-availability risk. It flags that fuel prices are driven by factors outside its control — actions by oil-producing countries and cartels, government/climate regulation, conflict and supply/demand imbalance — and that, because it does not maintain fuel storage at all facilities, a disruption in global fuel supply could materially affect operations. Although fuel surcharges typically offset much of the price exposure, supply disruptions and rapid price moves still pressure costs and service.

“a disruption in the global fuel supply resulting from factors outside of our control, that increases the demand for fuel traditionally used by trucks, could have a material adverse effect on our business, results of operations, financial condition and cash flows.”