IHS Markit Ltd. said on Monday it has signed a definitive agreement to take over market intelligence firm Ipreo for $1.855 billion. Markit is buying Ipreo from a group of private equity funds managed by Blackstone and the Goldman Sachs Merchant Banking Division . The deal is expected to close in the second half of 2018 after a review by the U.K. and U.S. antitrust authorities. Markit also said it has kicked off a process of selling its derivatives-processing business MarketSERV. Shares of Markit weren't moving in Monday's premarket trade.