The less-than-truckload carrier was hit by two downgrades last week from analysts who expressed concern about valuation.

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Roadway is a less-than-truckload carrier, meaning its trucks can carry freight for more than one customer at a time.

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The algorithms that came out of Powell's lab in the 1980s had changed the industry's "less-than-truckload" segment (consisting of parcels and smaller freight) by mapping out a more efficient way to plan routes and using terminals that break down shipments.

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