Boeing finds itself caught in an escalating trade war between the U.S. and China. It hasn’t been good for shares as investors watch China refuse delivery of 737 MAX jets. Whether it’s an act of defiance or economic sanity is beside the point: It means fewer sales at a time when Boeing is trying to recover.

MAX jet, originally designated for delivery to a Chinese airline, was en route back to the United States on Monday, Reuters reported, citing flight tracking data. The plane's return may be another sign of rising trade tensions between Washington and Beijing.

MAX jet en route to a Chinese airline reversed course and is heading back to the U.S., highlighting growing fallout from escalating U.S.-China trade tensions. According to AirNav Radar flight