Shares of Sotheby's soared 60% toward an 11-month high in premarket trading Monday, after the auction house announced a deal to be acquired by BidFair USA, which is owned by telcom and media entrepreneur and art collector Patrick Drahi, in a deal valued at $3.7 billion. Under terms of the deal, Sotheby's shareholders will receive $57 in cash for each Sotheby's stock they own, which is 61% above Friday's closing price of $35.39 and represents a market capitalization of $2.66 billion. Drahi is Chairman and controlling shareholder of Altice USA Inc. . The deal is expected to close in the fourth quarter. "This acquisition will provide Sotheby's with the opportunity to accelerate the successful program of growth initiatives of the past several years in a more flexible private environment," said Sotheby's Chief Executive Tad Smith. "It positions us very well for our future and I strongly believe that the company will be in excellent hands for decades to come with Patrick as our owner." Sotheby's stock has dropped 40% over the past 12 months through Friday, while the Dow Jones Industrial Average has gained 4%.