The American Trucking Associations advanced seasonally adjusted For-Hire Truck Tonnage Index rose 0.1% in June after falling 3.2% in May, leaving the reading at 113.1 against a 2015 base of 100. The June figure sat 0.1% below the same month in 2025, an improvement on May's 0.7% year-over-year decline.

The two-month pattern points to a weaker second quarter. ATA reported the index contracted a combined 4.1% across April and May, and tonnage has now come in below year-earlier levels for two consecutive months after five straight annual gains. Across the first half of 2026, tonnage ran 1.4% above the same period a year earlier, with most of that strength concentrated in the first quarter. For full-year 2025, the index finished flat against the 2024 average.

The not seasonally adjusted index, which tracks raw changes in tonnage hauled, equaled 116.5 in June, 2.7% above May's revised 113.4. ATA revised the May reading down from the level first reported in its June 23 release.

ATA Chief Economist Bob Costello attributed the softness to freight-side conditions rather than the wider economy, and noted that a year of capacity leaving the market has left fleets in better shape than raw volume data suggests.

The index is dominated by contract freight rather than spot market loads and has been compiled from member surveys since the 1970s. Trucking carries 72.7% of tonnage moved by all domestic freight modes. Trucks hauled 11.27 billion tons of freight in 2024, and motor carriers collected $906 billion, or 76.9% of total revenue earned across all transport modes.

Source: American Trucking Associations - https://www.trucking.org/news-insights/ata-truck-tonnage-index-rose-01-june