No large U.S. company is attracting more attention from short sellers than Facebook, amid bets the world’s biggest social-networking company will keep falling after losing $27 billion since its initial public offering. Short interest on the Menlo Park, California-based company reached 5.9 percent of shares outstanding, according to data compiled by Bloomberg and Data Explorers Ltd., a New York-based research firm. None of the Standard & Poor’s 500 Index companies with at least $50 billion in market capitalization has short interest higher than 3 percent, the data show. Facebook, which has a market value of about $63.8 billion, isn’t in the S&P 500. [Bloomberg]