Trucking Capacity Shrinks as Rates Hit Record Highs

The U.S. trucking market is entering a critical supply-demand imbalance where capacity constraints are driving freight rates to near-record levels, with no relief expected in the near term. ACT Research's June For-Hire Trucking Index reveals a Freight Rate Index of 70.2, still among the highest in the survey's 17-year history despite a 9.5-point monthly drop, while the Capacity Index climbed to a 43-month high of 55.0. However, this apparent capacity growth masks a troubling reality: the expansion is concentrated among large, well-capitalized fleets, while Class 8 tractor sales remain below replacement levels industrywide. The structural bottleneck is driver availability, which remains deeply depressed at 34.1 on the Driver Availability Index.

New federal regulations from the FMCSA, including nondomiciled Commercial Driver License (CDL) restrictions, enhanced Electronic Logging Device (ELD) enforcement, and driver school closures, have exacerbated labor scarcity. These regulatory headwinds, combined with carrier profit margins at their lowest since the Great Recession, are creating a vicious cycle: fleets lack capital to purchase new equipment, drivers continue to exit the industry, and rates spike to compensate for limited capacity. Supply chain professionals should anticipate sustained rate pressure through Q4 2025 as spot rate gains gradually flow through to contract rates. The article projects that capacity expansion will accelerate in the third and fourth quarters, but only among larger carriers with stronger balance sheets.

Mid-market and smaller fleets face a squeeze between regulatory compliance costs, aging equipment, and capital constraints. Shippers seeking volume growth will need to prioritize negotiation timing around contract renewals and consider alternative modes or regional supply chain adjustments to mitigate transportation cost inflation.