Boeing, Suppliers Plunge on Stop-and-Go 737 Max Comeback (2)

Shares of Boeing Co. and its largest suppliers sank Thursday after the planemaker pared output plans for its beleaguered 737 Max just two weeks after restarting work in its Seattle-area factory.

A resurgence in Covid-19 cases in some regions of the U.S. has added to concerns that airlines face a prolonged recovery that will make it difficult for Boeing to meet delivery targets for its 737 Max, a crucial source of cash. The Chicago-based planemaker is already backtracking from an early May agreement with Spirit AeroSystems Holdings Inc. to deliver 125 Max frames this year.

Boeing fell more than 17%, ...