FedEx slumps as the carrier beats earnings estimates but says costs tied to increased shipping demand and labor are soaring

Boxes containing the Moderna COVID-19 vaccine are loaded into a truck for shipping at the McKesson distribution center in Olive Branch, Miss., Sunday, Dec. 20, 2020.
AP Photo/Paul Sancya, Pool
FedEx fell on Friday by as much as 5.6% after its latest earnings…

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