Indeed this broad range reflects a simple fact: while Tesla has transformed the auto business, it is a volatile stock.

Shares of Tesla Inc. dropped 0.84% to $218.85 Monday, on what proved to be an all-around mixed trading session for the stock market, with the NASDAQ Composite Index rising 0.27% to 18,540.00 and the Dow Jones Industrial Average falling 0.

Tesla stock fell for a fourth consecutive day headed into the company’s Wednesday third-quarter earnings report.Shares of the electric-vehicle maker closed down 0.4% at $217.97 on Wednesday while the S&P 500 and Dow Jones Industrial Average both finished slightly lower.