** Cryptocurrency exchange Coinbase Global's COIN.O shares rise 5.3% to $207 before the bell
** COIN agrees to acquire crypto options exchange Deribit in a $2.9 billion cash-and-stock deal
** Transaction comprises $700 million in cash and 11 million Coinbase shares
** Deal, expected to close by year-end, will significantly boost COIN's crypto derivatives business
** Deribit last year facilitated over $1 trillion in trading volume across key markets, excluding U.S.
** 14 of 30 brokerages rate COIN "buy" or higher and 16 "hold"; median PT $254.50 - data compiled by LSEG
** As of last close, COIN was down 20.8% YTD
(Reporting by Arasu Kannagi Basil in Bengaluru)
((ArasuKannagi.Basil@thomsonreuters.com;))