The Chicago Mercantile Exchange (CME Group) announced its intention to increase in the spot month position limit for its bitcoin futures contracts in a letter to the U.S. Commodity Futures Trading Commission (CFTC) Thursday. The limit would jump from 1,000 contracts per spot month to 2,000 for any single investor. Each contract is for five bitcoin. The change would allow a trader’s maximum exposure to double from 5,000 bitcoin to 10,000 bitcoin.