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.
Atmel Corp. (ATML US) gained 9.8 percent to $16.10 for the second-biggest increase in the Russell 1000 Index. The maker of chips for household appliances reported fourth-quarter adjusted earnings of 22 cents a share, beating the average analyst estimate of 16 cents, Bloomberg data show.
Andersons Inc. (ANDE US) climbed 9.9 percent to $44.69, the highest price since September 2008. The grain marketer reported fourth-quarter revenue of $1.15 billion, beating the average analyst estimate of $1.06 billion.
Buffalo Wild Wings Inc. (BWLD US) gained 13 percent, the most since February 2009, to $53.50. The restaurant chain that features Buffalo-style chicken wings said fourth-quarter earnings were 57 cents a share excluding some items, beating the 53-cent average analyst forecast, according to data compiled by Bloomberg.
Cerner Corp. (CERN US) fell 3.2 percent, the most since July 21, to $97.45. The health-care technology company reported fourth-quarter revenue that fell short of the average analyst estimate in a Bloomberg survey.
Computer Sciences Corp. (CSC US) slid the most in the Standard & Poor’s 500 Index, sinking 14 percent to $48.43. The provider of computer services to U.S. government agencies and companies lowering its fiscal 2011 forecasts, citing a slowdown in government contracts.
DSW Inc. (DSW US) climbed 15 percent, the most since April 27, to $41.66. The shoe retailer and its largest shareholder Retail Ventures Inc. (RVI US), said they agreed to combine, with Retail Ventures to become a wholly owned unit of DSW in an exchange of shares at a ratio of 0.435 of a DSW share for each Retail Ventures share. Retail Ventures Inc. gained 13 percent to $17.99.
General Cable Corp. (BGC US) rose 6.6 percent to $42.87, the highest price since September 2008. The Highland Heights, Kentucky-based cable maker reported fourth-quarter adjusted earnings of 75 cents a share, beating the average analyst estimate by 64 percent.
Ingersoll-Rand Plc (IR US) fell 5.7 percent, the most since February 2010, to $46.25. The maker of security systems and Trane air conditioners forecast profit from continuing operations of $2.90 to $3.10 a share this year. Analysts, on average, estimated $3.10.
JDS Uniphase Corp. (JDSU US) climbed 6.9 percent to $24.42, the highest price since June 2006. The biggest network-analysis company in the U.S. was recommended by CNBC’s Jim Cramer.
Motricity Inc. (MOTR US) fell the most since it went public in June, declining 26 percent to $16.36. The provider of mobile-data services forecast first-quarter sales of $33 million at most, missing the average analyst estimate of $42.2 million in a Bloomberg survey.
Novatel Wireless Inc. (NVTL US) dropped 15 percent to $6.31, the lowest price since Sept. 2. The maker of wireless data-access cards for personal computers was reduced to “hold” from “buy” at Jefferies Group Inc.
NYSE Euronext (NYX US) rose 14 percent to $38.10 for the biggest gain in the S&P 500. Deutsche Boerse AG is in advanced talks to buy the operator of the New York Stock Exchange in an all-stock transaction that would create the world’s biggest exchange operator. Deutsche Boerse will own about 59 percent to 60 percent of the combined company.
Nasdaq OMX Group Inc. (NDAQ US), owner of the second-largest U.S. stock exchange, advanced 6.7 percent to $27.58. CBOE Holdings Inc. (CBOE US), owner of the world’s largest equity derivatives market, climbed 4.3 percent to $25.51.
Photronics Inc. (PLAB US) rallied 16 percent to $7.82, the highest price since June 2008. The maker of imaging technology said that, excluding some items, it earned 17 cents a share at least in the fiscal first quarter, topping its previous forecast.
Pinnacle Airlines Corp. (PNCL US) slid 4 percent to $6.90, the lowest price since Nov. 12. The Memphis, Tennessee-based carrier said that, excluding some items, it earned 15 cents a share at most in the fourth quarter. That missed the average analyst estimate of 30 cents in a Bloomberg survey.
Polo Ralph Lauren Corp. (RL US) jumped 8.3 percent to $125.35 for the second-biggest increase in the S&P 500. The board of the New York-based apparel maker authorized a $250 million stock buyback. The company already has $469 million available from a previous program.
Ralcorp Holdings Inc. (RAH US) rose 8.1 percent, the most since November 2008, to $64.49. The maker of cereals and baked goods reported first-quarter profit excluding some items that topped the average analyst estimate in a Bloomberg survey.
Sierra Wireless Inc. (SWIR US) slumped 26 percent, the most since December 2008, to $11.45. The maker of wireless modems for personal computers reported fourth-quarter profit excluding some items of 16 cents a share, trailing the average analyst estimate by 32 percent, according to Bloomberg data.
Sigma-Aldrich Corp. (SIAL US) tumbled 5.9 percent, the most since December 2008, to $61.57. The maker of chemicals for research laboratories said that excluding some items it may earn as little as $3.45 a share this year. That’s short of the average analyst estimate of $3.56 in a Bloomberg survey.
Smith Micro Software Inc. (SMSI US) fell the most in the Russell 2000 Index, plunging 35 percent to $8.50. The communications-software provider for wireless carriers and phone makers suspended its 2011 sales forecast after orders in the first quarter were lower than the company expected.
St. Joe Co. (JOE US) fell 7.1 percent to $27, the lowest price since Jan. 28. The Florida developer criticized by hedge-fund manager David Einhorn said it hired Morgan Stanley to explore a possible merger or sale.
SWS Group Inc. (SWS US) rose the most in the Russell 2000 Index, surging 33 percent to $5.71. The Dallas-based financial-services firm reported a loss of 1 cent a share in the fiscal second quarter. Analysts, on average, estimated a loss of 9 cents.
Usana Health Sciences Inc. (USNA US) tumbled 13 percent, the most since October 2009, to $35. The vitamin maker private projected 2011 earnings of $2.95 a share at most, trailing the average analyst estimate of $3.37 in a Bloomberg survey.
Walt Disney Co. (DIS US) rose the most in the Dow Jones Industrial Average, climbing 5.3 percent to $43.36. The world’s biggest media company said first-quarter profit rose 54 percent, beating estimates, after an increase in attendance at its theme parks and advertising sales growth at the ESPN sports channel.
Web.com Group Inc. (WWWW US) soared 19 percent to $11.75, the highest price since October 2006. The company that builds Web sites for small businesses reported fourth-quarter profit excluding some items of 24 cents a share, beating the average analyst estimate by 44 percent, according to Bloomberg data.
Wells Fargo & Co. (WFC US) declined 2.8 percent, the most since Nov. 9, to $33.13. The biggest U.S. home lender said Chief Financial Officer Howard I. Atkins is retiring for personal reasons and will be replaced by Chief Administrative Officer Timothy J. Sloan, effective immediately.