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.
AsiaInfo-Linkage Inc. (ASIA US) surged 19 percent, the most since Aug. 11, to $11.78. The Chinese telecommunications software provider said it receiving a buyout proposal from Power Joy (Cayman) Ltd., a state-owned private-equity fund, at a premium to its stock price.
Capital One Financial Corp. (COF US) slumped 5.6 percent, the most since Sept. 2, to $46.03. The credit-card issuer seeking approval to purchase ING Groep NV’s U.S. online bank said fourth-quarter profit fell 42 percent as expenses rose.
Cogent Communications Group Inc. (CCOI US) sank 19 percent, the most since December 2008, to $15.30. The Internet-service provider fell after file-sharing site Megaupload.com was shut down by U.S. authorities as part of a copyright-infringement investigation. Cogent is one of the companies that hosted Megaupload.com, Wired.com reported.
CoreLogic Inc. (CLGX US) rallied 4.7 percent to $14.43, the highest price since Aug. 3. The seller of property and credit data forecast earnings in 2012 of at least 95 cents a share, exceeding the average analyst estimate of 89 cents.
Google Inc. (GOOG US) fell 8.4 percent to $585.99, after losing 8.4 percent for the biggest loss in the Standard & Poor’s 500 Index. The owner of the world’s most popular Internet search engine reported fourth-quarter revenue and profit that missed analysts’ estimates as an economic slowdown in Europe crimped international sales.
Insmed Inc. (INSM US) surged 32 percent, the biggest gain in the Russell 2000 Index, to $5.01. The Food and Drug Administration lifted a suspension of clinical trials of the company’s experimental drug Arikace for patients with non-tuberculous mycobacteria lung disease.
International Business Machines Corp. (IBM US) advanced 4.4 percent, the most since July 19, to $188.52. The world’s biggest computer-services provider forecast 2012 earnings exceeding analysts’ estimates after fourth-quarter profit rose 4.4 percent because of rising software demand.
Intuitive Surgical Inc. (ISRG US) sank 6.1 percent, the most since Aug. 8, to $445.68. The maker of a robotic system to perform surgery said annual growth in its da Vinci surgical procedures slowed to 27 percent in the fourth quarter from 30 percent in the third quarter.
JDS Uniphase Corp. (JDSU US) rose 4 percent to $13.45, the highest price since Sept. 15. The maker of fiber-optic equipment was raised to “buy” from “hold” at Stifel Nicolaus & Co., which said the company has a “sustainable competitive advantage.”
Marathon Petroleum Corp. (MPC US) jumped 3.7 percent to $37.17, the highest price since Nov. 11. The largest independent U.S. refiner by market value outperformed competitors after hedge fund Jana Partners LLC bought a 5.5 percent stake in the company.
Microsoft Corp. (MSFT US) climbed 5.7 percent, the biggest gain in the Dow Jones Industrial Average, to $29.71. The world’s largest software maker reported second-quarter profit that beat estimates, lifted by holiday sales of Xbox machines and Kinect sensors, as well as corporate software demand.
NCI Inc. (NCIT US) tumbled 32 percent, the biggest drop in the Russell 2000, to $7.80. The designer of information technology systems for government agencies forecast 2012 revenue of no more than $360 million, missing the average analyst estimate of $510.8 million.
Parker Hannifin Corp. (PH US) slumped 4.1 percent, the most since Nov. 9, to $81.52. The maker of fluid power systems and air-conditioning products lowered its earnings forecast for 2012 to no more than $7.30 a share from an earlier prediction of as much as $7.85, citing international business conditions.
Sears Holdings Corp. (SHLD US) rose the most in the S&P 500, climbing 13 percent to $49. CIT Group Inc. (CIT US) extended credit to the retailer even though letter of credit hasn’t been given, New York Post reported late yesterday, citing people close to the matter.
Skyworks Solutions Inc. (SWKS US) rose 11 percent to $21.39, the highest price since Nov. 4. The maker of flash-memory cards forecast second-quarter revenue of $360 million, exceeding the average analyst estimate of $349.1 million.
Sonoco Products Co. (SON US) fell 5.3 percent, the most since Aug. 8, to $31.93. The industrial and consumer packaging manufacturer lowered its forecast of 2011 earnings excluding some items to no more than $2.30 a share, below the average analyst estimate of $2.43.
SunTrust Banks Inc. (STI US) rallied 5.2 percent to $21.29, the highest price since Aug. 5. Georgia’s largest bank said fourth-quarter earnings were 28 cents a share, beating the average analyst estimate of 27 cents. The Atlanta-based company’s sales missed the average estimate by 2.3 percent.
Talbots Inc. (TLB US) surged 19 percent to $3.19, the highest price since Sept. 20. CNBC reported that Golden Gate Capital Corp. and TPG Capital were considering bids for the retailer. Talbots said in a statement that it doesn’t comment on unusual market activity.
TreeHouse Foods Inc. (THS US) erased 9.7 percent, the most since Aug. 5, to $56.76. The Westchester, Illinois-based food company forecast earnings in 2011 of no more than $2.73 a share, missing the average analyst estimate of $2.94, citing December sales volumes.
U.S. Gold Corp. (UXG US) rose 7.6 percent to $4.98, the highest price since Sept. 21. The mining company’s acquisition of Minera Andes Inc. (MNEAF US) was approved by shareholders.
Voc Energy Trust (VOC US) fell 12 percent, the most since it went public in May, to $21.55. The owner of oil and natural gas properties reduced its quarterly dividend to 44 cents per unit from 56 cents. Robert W. Baird & Co. cut its rating to “underperform” from “outperform.”
Zoll Medical Corp. (ZOLL US) rose 5 percent, the most since Dec. 15, to $67.64. The maker of defibrillators reported first-quarter earnings of 29 cents a share, topping the 26-cent profit predicted by analysts on average.
-- With assistance from Lu Wang, Inyoung Hwang, and Whitney Kisling in New York. Editor: Stephen Kleege
Katia Porzecanski in New York at +1-212-617-0408 or firstname.lastname@example.org