Recently, CME said the CME Bitcoin Futures contract would become effective on Dec. 10, a Sunday, for trading on Dec. 11, pending regulatory review.
But a little later the notice was removed from CME’s website and Laurie Bischel, a spokeswoman for the exchange operator, said the original posting “was due to an error with the website,” without giving further details.
Effective Q4 2017, and pending all relevant regulatory review periods, please be advised that CME will launch bitcoin futures.
Current CME statement
Each contract will constitute 5 BTC trading on both the CME Globex and CME ClearPort systems and using CME's existing bitcoin price indices. According to the company, spot position limits are set at 1,000 contracts,
For the contracts, CME explained, minimum price fluctuations (or "ticks") are pegged at $5 per bitcoin, representing a total of $25 for each one.