SAN FRANCISCO—Tesla’s stock and bonds tumbled on May 20 as investors worried about the automaker’s cash burn and problems with an Autopilot system that CEO Elon Musk has held out as key to the electric car maker’s future.
Tesla’s stock fell 3.8% to $203.03, bringing its loss to 11% since the National Transportation Safety Board said on May 16 that the Autopilot system was engaged during a fatal collision of a Model 3 on March 1, in at least the third deadly U.S. crash reported involving the driver-assistance system.
