United Parcel Service Inc. suffered its biggest one-day share drop after shocking the market by slashing business with the world’s largest online retailer. Most Read from BloombergHow the 2025 Catholi

United Parcel Service will halve its Amazon package volume to bolster its profitability, but the unexpected move sent the stock tumbling Thursday. Why it matters: UPS gets nearly 12% of its revenue from Amazon deliveries,

Shares of United Parcel Service plunged more than 15% Thursday after the company issued weak revenue guidance for the year and said it planned to cut deliveries for Amazon, its largest customer, by more than half.

United Parcel Service on Thursday forecast downbeat 2025 revenue as it cuts back deliveries for its largest customer, Amazon.com , and grapples with stubbornly soft demand for lucrative overnight service and commercial shipments.

UPS projected a decline in revenue for the current year, with a key factor being plans to phase out more than half of the business it does with Amazon over the next 18 months.