Wharton professor Jeremy Siegel is a long-time market commentator.

REUTERS/Steve Marcus

Jeremy Siegel used a quote from Warren Buffett to explain the problem behind Tesla's epic stock price decline."It's far better to buy a wonderful company at a fair price, than a fair company at a wonderful price," Buffett once said."The problem with Tesla was always the price, and I think that's the bottom line," Siegel said.

Tesla's epic stock price decline has been jarring to many investors, but not...

Continue Reading Wharton professor Jeremy Siegel channels Warren Buffett in explaining the problem behind Tesla's epic stock price decline