Tesla shares are falling as investors deal with another surprising development surrounding CEO Elon Musk.
Musk admitted in an interview with The New York Times that stress is taking a heavy toll on him. The company has been under pressure to increase production of its Model 3 sedan, and Musk said that he was working up to 120 hours a week and sometimes takes Ambien to get to sleep.
Musk raised a ruckus last week when he tweeted that he might take Tesla private. The tweet reportedly has spurred an investigation by securities regulators.
Tesla shares fell more than six per cent to $314.17 US in early trading.
Musk is known for odd behaviour and controversial statements, but investors have stuck with him and driven Tesla to a higher market value than General Motors.