Elon Musk Made a Big Prediction About Tesla. What History Says Happens to the Stock Next.

Self-described “long-term optimist” Elon Musk made another bold prediction about his car company. That isn’t necessarily good news for Tesla’s stock price—although investors initially appeared enthusiastic.

On Saturday, Musk tweeted that Tesla’s earnings could grow tenfold over the coming five years if its business execution is “outstanding.”