Tesla's second quarter profit fell short of expectations, with a pre-market drop of 8% in stock price. Tesla's stock price fell 8.2% in pre-market trading in the US stock market. Tesla's second quarter profit was lower than Wall Street's expectations. The company announced adjusted earnings per share for the second quarter on Tuesday, which was 52 cents, lower than the average analyst expectation of 60 cents; Revenue increased to $25.5 billion, exceeding analysts' expectations of $24.6 billion; The diluted earnings per share attributable to common stockholders were $0.42, a year-on-year decrease of 46%.