U.S. supply chains expanded at their fastest rate in over four years in June, with the Logistics Managers’ Index rising to 71.1 from 69.5 in May. The reading above 70 for the first time since March 2022 was driven by increased inventory levels among larger firms and downstream retailers, along with greater pressure on warehousing utilization, warehousing prices, and transportation utilization. Researchers attribute the inventory buildup to resilient consumer spending and efforts to lock in pricing ahead of potential tariff hikes. Respondents expect continued expansion over the next 12 months, though uncertainty remains due to limited capacity and trade policy concerns.