John Paulson lost 11 percent in his biggest fund in June, according to an investor, as the firm sold off Sino-Forest Corp. after a short-seller’s allegations.   The drop left Paulson’s Advantage Plus Fund, which uses strategies designed to profit from corporate events such as takeovers and bankruptcies, down 18 percent this year, said the client, who asked not to be named because the information is private. Julie Hyman reports on Bloomberg Television’s "Bottom Line."