ArcBest tonnage rises on heavier industrial freight

ArcBest recorded a 9% year-on-year increase in daily tonnage across its asset-based freight business during August, even though the number of shipments moving through the network fell 4%, as substantially heavier consignments changed the mix of cargo handled by the US logistics group.

Average weight per shipment increased 14% from August 2025, allowing tonnage to rise despite fewer individual consignments. Daily revenue also increased 9%, while revenue per shipment was 14% higher year on year.

The figures make shipment weight the central part of the August result. A freight market does not need more individual collections to consume additional line-haul and terminal capacity if each shipment occupies substantially more space and weight inside the network.

The pattern is also not confined to one month. ArcBest’s second-quarter results showed daily asset-based tonnage increasing 4.9% year on year while shipments fell 2.8% and average weight per shipment rose 8%. August therefore represents an acceleration of a freight-mix change already visible earlier in 2026.

For less-than-truckload carriers, that mix matters operationally because networks are built around repeated handling. Freight is collected locally, moved through terminals, combined with other shipments for line-haul transport, separated again, and delivered at destination.

A larger consignment can improve some of those economics because more weight is carried against a single pickup and delivery. The carrier processes fewer bills than it would if the same tonnage arrived as numerous small shipments, while trailers can achieve better weight utilisation.

The benefit is not unlimited. Heavy freight can consume trailer payload before the available cubic space is full, and individual terminals still have to manage dock labour, forklifts, door capacity, and the physical characteristics of larger consignments.

ArcBest’s August revenue figures also need to be read alongside fuel and yield. Yield including fuel surcharges was roughly unchanged from a year earlier, while yield excluding fuel fell by a low-single-digit percentage. The improvement in billed revenue per shipment therefore reflects heavier freight and fuel effects rather than a simple increase in underlying price per unit of cargo.

The company’s second-quarter numbers show the same interaction. Asset-based revenue reached $783.7 million, up from $713.3 million a year earlier, while billed revenue per shipment increased 12.5% and weight per shipment rose 8%.

Customer contract renewals and deferred pricing agreements averaged a 5.8% increase during the quarter, indicating that the market has retained pricing discipline even as shipment counts have softened. ArcBest described LTL industry pricing as rational in its second-quarter results.

That is relevant to shippers expecting lower freight volumes to generate immediate rate relief. Carrier capacity can adjust as operators close terminals, remove equipment, become more selective about freight, or redirect resources towards business with a better margin profile.

Heavier shipments can reinforce the same effect by consuming more practical capacity even when the number of daily pickups declines. A network handling 4% fewer consignments is not necessarily less busy if every shipment is materially larger.

Industrial demand appears to be contributing to that shift. The US Institute for Supply Management manufacturing PMI remained in expansion territory during August at 54.6, its eighth consecutive month above 50, while the new-orders index also remained positive at 53.7.

Those indicators do not translate directly into an LTL tonnage forecast, and manufacturing output is only one source of freight. Inventory policy, truckload capacity, shipment consolidation, sourcing decisions, fuel, and customer mix all influence what eventually moves through an LTL terminal.

There is nevertheless a logical connection between stronger industrial production and heavier freight. Machinery parts, fabricated products, raw materials, components, and other business-to-business cargo tend to produce different shipment profiles from lightweight consumer parcels, giving industrial activity a disproportionate effect on tonnage.

Truckload conditions can push freight towards LTL as well. Where full-truck capacity becomes tighter or less economical, larger partial loads may move through LTL networks instead, increasing average shipment weight without creating a corresponding rise in shipment count.

That can be attractive to shippers that do not have enough freight to justify a dedicated trailer but still need predictable capacity. For the LTL carrier, the opportunity is useful only if the price reflects the space, weight, handling, and line-haul resources consumed.

ArcBest has already shown that it can improve profitability while carrying this heavier mix. During the second quarter, asset-based operating income increased to $74.3 million from $51 million a year earlier, with the operating ratio improving to 90.5% from 92.8%.

The August figures do not by themselves establish whether that improvement will continue through the third quarter. Fuel costs, labour, purchased transportation, pricing, and daily network productivity all affect the final result, while one month can be influenced by customer and commodity mix.

They do provide a useful warning against using shipment count as a shorthand for freight-market strength. ArcBest moved fewer individual shipments in August than a year earlier while handling 9% more tonnage, which means the network was carrying materially more cargo through a smaller number of transactions.

If that heavier profile persists, LTL capacity will increasingly be determined by pounds and trailer utilisation rather than the number of bills crossing the dock. For industrial shippers, the implication is straightforward: a freight market can tighten well before shipment counts start looking like a conventional volume boom.