Spot Market Volume & Rates: Van DAT: Truckload spot rates post seventh straight monthly gain PORTLAND, Ore., March 17, 2026 (GLOBE NEWSWIRE) -- Truckload freight volumes eased slightly in February but remained firm on a daily basis, while spot market van and refrigerated (“reefer”) rates increased for the seventh straight month, said DAT Freight & Analytics, provider of the industry’s leading load boards and freight analytics. The DAT Truckload Volume Index (TVI), an indicator of trucking industry trend ...