o Rowan Cos. (NYSE:RDC) gained 9.7% to close at $33.99, the highest since August 9, 2011 after it announced it had delayed moving its headquarters to the U.K. in an effort to stay on the S&P 500

o Shares of McKesson Corp. (NYSE:MCK) rose 3.9% after being awarded a contract valued at a maximum of $4 billion a year by the U.S. Department of Veterans Affairs to supply treatment centers

o Barnes & Noble, Inc.(NYSE:BKS) dropped 6.4% after the U.S. Justice Department sued Apple and five publishers over e-book prices

o China Cord Blood Corp (NYSE:CO) surged 5.6% after private equity firm KKR & Co. L.P. (NYSE:KKR), said it had agreed to invest $65 million in the former to capitalize on China’s rapidly growing healthcare industry

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