ArcBest reported a modest year-over-year revenue increase in its asset-based segment in August following no change in July. However, the carrier lowered its third-quarter margin outlook for the unit, given ongoing macro headwinds and higher costs. Asset-based revenue per day, which includes results from less-than-truckload subsidiary ABF Freight, increased 2% y/y in August, primarily driven by a 2% increase in tonnage with no change in average yield. The August tonnage result was the combination of a 5% i ...