U.S. business inventories rose 0.5% in May as sales rose, the Commerce Department said Friday.
The inventories gain was more than a 0.3% increase forecast by analysts, Bloomberg reported.
Business sales rose 1.3% following a 0.7% rise in April.
When sales are growing, it usually means trucking is seeing additional demand to deliver goods and restock shelves.
Higher inventories mean goods are not being sold at a rapid pace, which could lower demand for trucking services.