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"My gut says there's going to be some wild volatility and swings in the first couple of days. You're going to see limit up, limit down a lot, and then it'll probably settle down, but I really don't know," said Larry Tabb, founder and head of research at Tabb Group.
https://www.cnbc.com/2017/12/08/no-one-is-sure-whether-bitcoin-futures-will-pop-or-drop-at-the-start-but-it-should-be-wild.html