Shares of the following companies had unusual moves in U.S. trading. Stock symbols are in parentheses, and prices are as of 4 p.m. in New York.
CommVault Systems Inc. (CVLT US) gained 4.5 percent, the most since Nov. 30, to $43.10. The provider of data management software applications was raised to “top pick” from “outperform” at RBC Capital Markets, with a 12-month price estimate of $50 per share.
Computer Sciences Corp. (CSC US) slid 9 percent, the second-biggest decline in the Standard & Poor’s 500 Index, to $24.10. The technology services company withdrew its 2012 forecast, saying it will write down its investment in a U.K. contract by as much as $1.5 billion as the agreement is being renegotiated.
Endeavour International Corp. (END US) rose 24 percent, the most since June 2009, to $7.94. The Houston-based oil and gas exploration company said it agreed to buy an interest in three British oil fields in Central North Sea from ConocoPhillips (COP US) for $330 million.
Magnum Hunter Resources Corp. (MHR US) climbed 17 percent, the second-biggest gain in the Russell 2000 Index, to $5.47. The oil and natural gas explorer raised its 2011 and 2012 production forecasts, saying the growth was anticipated from new drilling of existing mineral leases.
Mead Johnson Nutrition Co. (MJN US) rose 5.8 percent, the most in the S&P 500, to $69.08. The maker of Enfamil baby formula said tests it conducted on samples of the formula tied to a U.S. Food and Drug Administration probe found no presence of bacteria. The company called the product safe.
Parlux Fragrances Inc. (PARL US) gained 71 percent, the most since April 2009, to $5.94. The maker of Queen Latifah and Paris Hilton fragrances agreed to be purchased by Perfumania Holdings Inc. (PERF US) for about $170 million in cash and stock. Perfumania declined 33 percent to $13.23.
Sears Holdings Corp. (SHLD US) fell 27 percent, the biggest drop in the S&P 500, to $33.38. The retailer controlled by hedge-fund manager Edward Lampert will close as many as 120 Kmart and Sears Full-line stores after sales of consumer electronics and apparel declined during the U.S. holiday shopping period.
Whirlpool Corp. (WHR US), which got 8 percent of its 2010 revenue from Sears, fell 9 percent, the third-biggest drop in the S&P 500, to $46.62.