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Knight-Swift Transportation Holdings’ LTL segment is bringing on more industrial customers, leading to heavier and longer loads, CEO Adam Miller said on an earnings call last month.

In the company’s LTL segment, average weight per shipment increased 5.2% to 1,033 pounds in Q1 2026 compared to a year ago, and average length of haul increased 8.5% to 693 miles, according to an earnings report.

“We saw a notable improvement in weight per shipment for the first time in years with this measure progressively growing throughout the quarter,” Miller said.

Knight-Swift LTL metrics yield some progress