The electric-vehicle maker’s shares fell 5.3% to $300.71 on Monday, after sliding 1.8% Monday, while the S&P 500 dropped 0.1% and Dow Jones Industrial Average rose 0.9%. It was the sixth consecutive drop for shares after an 8.2% jump on June 23, the day after the company launched a self-driving taxi service in Austin, Texas.

U.S. President Donald Trump on Tuesday suggested the government efficiency department should review the subsidies to Tesla CEO Elon Musk's companies to save money, reigniting a war of words between the world's most powerful person and its richest.