The stock price of Tesla dropped sharply Thursday, declining about 8% in morning trading. It is now down more than 36% from its December high. Revenue was $22.5 billion for the three months ending June 30, down 12% from a year ago, while earnings were 40 cents per share, down 23% from a year ago.

Tesla reported second-quarter results after Wednesday's closing bell, unveiling profits and sales in line with Wall Street expectations. Losses mounted for the stock, however, as the company's call with analysts sowed more doubts than offered answers about Tesla's prospects and Chief Executive Elon Musk said he could see potential for "a few rough quarters" ahead.

Tesla stock fell early Thursday following the company’s relatively bland second-quarter earnings report. Investors wanted to hear more new details about more topics, including Tesla’s ambition to become a leader in robo-taxis,