Wabash National (WNC) concentration risks

Wabash National's disclosed concentration risk centers on two dependency-type exposures, both at a moderate scale. On the customer side, the five largest customers together accounted for approximately 35% of aggregate net sales in 2025 — a meaningful concentration, though one that leaves the majority of revenue spread across a broader customer base. On the supply side, the company has historically relied on a small group of chassis suppliers — General Motors, Freightliner Custom Chassis, International Truck, and Ford Motor Company — for a key input, creating a dependency on the health and production decisions of those specific automakers. These two exposures are largely independent of one another: the customer concentration reflects buyer-side demand risk, while the chassis-supplier reliance is an input-side risk tied to a handful of named manufacturers. Both are disclosed at a moderate rather than extreme level, suggesting Wabash has some diversification within each category even as it depends on a limited set of counterparties. The combination means results could be pressured either by weakening demand from its largest customers or by production or allocation decisions at any of its four named chassis suppliers, without either risk being large enough on its own to dominate the filing's overall risk profile.

For the engine’s reasoning on WNC’s current verdict — including which dimensions drove the score — see the per-dimension breakdown.

Concentration counts reflect items disclosed in each peer’s most recent 10-K; disclosed-size classification uses TrendMatrix’s internal 10-K extraction taxonomy.