CNBC Bitcoin bull and CEO of crypto investment firm BKCM, Brian Kelly, says he’s concerned about Bitcoin’s short-term prospects. On the latest episode of Fast Money, Kelly explains why he’s closely watching the number of new addresses being created on the Bitcoin network. “What concerns me about Bitcoin right now is we’re not seeing the address growth. The reason why I look at that is because that’s fundamentals. That’s new money coming into it. So we really need to see that address growth. What’s been going on is Bitcoin’s been trading right with gold for the first time since I started talking about it in 2013. ... (full story)