The company said it has reached an agreement with its largest customer to lower volumes by 50 percent, sparking a sell-off.

In 2022, the company delivered more packages to U.S. homes than UPS for the first time in a single year, after eclipsing FedEx two years before that. By 2023, Amazon's logistics arm boasted the second ...

UPS announced a seismic shift in the relationship with its largest customer, Amazon, prompting a sharp stock price drop Thursday morning. The Georgia-based logistics company will cut the volume it ...