Press Release

ΝψΊμΊΪΑΟ Truck Tonnage Index Rose 0.5% in August

Sep 21, 2021

Arlington, Virginia β€” ΝψΊμΊΪΑΟ’ advanced seasonally adjusted (SA) For-Hire Truck Tonnage Index increased 0.5% in August after falling 1.1% in July. In August, the index equaled 110.3 (2015=100) compared with 109.8 in July.

β€œAugust’s monthly gain, while small, was the first since March,” said ΝψΊμΊΪΑΟ Chief Economist Bob Costello. β€œIt is important to remember that ΝψΊμΊΪΑΟ’s tonnage data is dominated by for-hire contract freight, with a very limited amount of spot market freight. I continue to believe that tonnage has not recovered to pre-pandemic levels for two main reasons - broader supply chain issues, like semiconductor shortages, as well as industry specific difficulties, including the driver shortage and lack of equipment.

β€œDespite some supply chain issues, demand remains strong for trucking services generally. Truckload carriers are operating fewer trucks than a year earlier, which makes it difficult to increase freight volumes significantly,” he said.


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ΝψΊμΊΪΑΟ Truck Tonnage Index

July’s reading was revised up slightly to -1.1% from our August 24 press release.

Compared with August 2020, the SA index fell 0.5%, which was the second straight year-over-year drop. In July, the index was down 2.9% from a year earlier. Year-to-date, compared with the same eight months in 2020, tonnage is down 0.2%.

The not seasonally adjusted index, which represents the change in tonnage actually hauled by the fleets before any seasonal adjustment, equaled 114.5 in August, 2.2% above the July level (112). In calculating the index, 100 represents 2015. ΝψΊμΊΪΑΟ’s For-Hire Truck Tonnage Index is dominated by contract freight as opposed to spot market freight.

Trucking serves as a barometer of the U.S. economy, representing 72.5% of tonnage carried by all modes of domestic freight transportation, including manufactured and retail goods. Trucks hauled 11.84 billion tons of freight in 2019. Motor carriers collected $791.7 billion, or 80.4% of total revenue earned by all transport modes.

ΝψΊμΊΪΑΟ calculates the tonnage index based on surveys from its membership and has been doing so since the 1970s. This is a preliminary figure and subject to change in the final report issued around the 5th day of each month. The report includes month-to-month and year-over-year results, relevant economic comparisons, and key financial indicators.