Market Roundup

Shares of Alexion Pharmaceuticals Inc

fell about 1.3% after the company announced its plans to acquire drug developer Enobia Pharma Corp in a deal valued at up to $1.08 billion. Alexion projects the deal to complete in the first quarter of 2012. Shares of China Digital TV Holding Co Ltd

dropped about 1.8% after the company announced the postponement of the payment of a special cash dividend to its shareholders, initially scheduled to be made on or around December 30, 2011, due to pending regulatory approval by the foreign exchange authority in China. Shares of PulteGroup Inc

gained about 5% after the company announced the completion of the sale of land approved for approximately 1,500 residences in Broomfield, Colorado to Wheelock Street Capital LLC. However, terms and conditions of the deal were not disclosed. Shares of Leggett & Platt Inc

rose about 0.7% after the company projected weaker-than-expected full-year earnings. Leggett & Platt projects to take pretax charges of $36 million in the fourth quarter. It expects full-year earnings of $0.99 to $1.04 per share. Leggett & Platt is scheduled to report its Q4 financial results on February 6. Air China Ltd

announced the retirement of its Chairman Kong Dong after around four years. Kong Dong was succeeded by veteran civil aviation regulator Wang Changshun as general manager. Wang was also appointed as nonexecutive director at the listed unit.