Meanwhile, officially count Warren Buffett as a bitcoin bear. The legendary billionaire investor told CNBC in an interview that he would never invest in bitcoin or other cryptocurrencies and thinks they will all end badly.

WARREN BUFFETT, CEO BERKSHIRE HATHAWAY "I can say almost with certainty that cryptocurrencies will come to a bad ending. When it happens or how anything else I don't know, but if I can buy a long term puts, if I can buy a five year put on every one of the cryptocurrencies, I will be glad to do it but I will never short a dime on that. I get enough trouble on things I think I know something about, why the world should I take a long or short position on something that I don't know about."