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.
Anthera Pharmaceuticals Inc. (ANTH US) rallied 10 percent to $7.81, the highest intraday price since April 2010. The biopharmaceutical company was rated “outperform” in new coverage by Leerink Swann & Co., which cited prospects for drugs Anthera is testing for systemic lupus erythematosis and acute coronary syndrome.
Douglas Dynamics Inc. (PLOW US) fell 5.7 percent, the most since Sept. 16, to $15.15. The maker of snow plows and sand and salt spreaders said stockholders including Aurora Capital Group and Ares Management offered to sell 5 million shares.
ELong Inc. (LONG US) surged 57 percent, the most since its initial public offering in October 2004, to $26.58. The Chinese online-travel company said Tencent Holdings Ltd. (700 HK) bought a 16 percent stake for $84.4 million and Expedia Inc. (EXPE US) increased its stake to 56 percent, buying 8 percent of the shares for $41.2 million.
Fairpoint Communications Inc. (FRP US) plunged 40 percent, the most since its emergence from bankruptcy this year, to $9.59. The provider of Internet and phone services said it’s “unlikely” to achieve its full-year revenue forecast.
Hewlett-Packard Co. (HPQ US) dropped 7.3 percent to $36.91, the steepest loss in the Standard & Poor’s 500 Index. The world’s biggest personal-computer maker cut a billion dollars from its sales forecast for the year and said profit is falling short as consumers hold back buying PCs.
Immunomedics Inc. (IMMU US) jumped 6.4 percent, the most since Oct. 18, to $4. The developer of medicines for cancer and autoimmune diseases was rated “outperform” in new coverage at Oppenheimer & Co. with a 12-month price estimate of $6 a share.
Janus Capital Group Inc. (JNS US) fell 6.4 percent to $10.14, the lowest price since Sept. 7. Two of the money manager’s largest equity funds were pulled from a Bank of America Merrill Lynch model portfolio, two people familiar with the decision said.
JPMorgan Chase & Co. (JPM US) climbed the most in the Dow, rising 2.2 percent to $43.81. U.S. Senate Majority Leader Harry Reid plans to hold a vote on legislation that would delay rules to cap debit-card “swipe” fees, even as he opposes the bill, his spokesman said. The Dodd-Frank Act requires the Federal Reserve to cap debit-card swipe fees and lenders oppose the Fed’s plan, which could cost them more than $12 billion in annual revenue if the caps take effect.
Wells Fargo & Co. (WFC US) increased 3.2 percent to $28.75. Capital One Financial Corp. (COF US) rose 2.6 percent to $54.87.
Life Partners Holdings Inc. (LPHI US) plunged 18 percent, the most in the Russell 2000, to $4.40. The company that matches life insurance sellers with buyers delayed filing its annual report and reported an unaudited profit for the fiscal year ended on Feb. 28 of $22.9 million.
Mako Surgical Corp. (MAKO US) rose 17 percent, the most since Jan. 10, to $27.39. The maker of orthopedic surgery devices was rated “buy” in new coverage by Goldman Sachs Group Inc., which said the company is “in the early stages of its growth trajectory.”
O’Charley’s Inc. (CHUX US) rose 17 percent, the most since May 2009, to $7.65. The operator of restaurants in the U.S. Southeast and Midwest forecast sales of $190 million at least in the second quarter, topping the average analyst estimate of $188.3 million in a Bloomberg Survey.
Photronics Inc. (PLAB US) increased 12 percent to $8.96 for its biggest gain since Feb. 16. The maker of imaging technology forecast third-quarter sales of $128 million at least, higher than the average analyst estimate of $123 million in a Bloomberg Survey.
TJX Cos. (TJX US) slid 4.1 percent, the most since July 8, to $52.06. The discount clothing seller reported first-quarter profit excluding some items of 78 cents a share, trailing the average analyst estimate by 3 percent, Bloomberg data show.
Winn-Dixie Stores Inc. (WINN US) jumped 9.5 percent, the most since February 2010, to $8.04. The Jacksonville, Florida-based grocery-store chain said fiscal third quarter profit excluding some items was 25 cents a share, matching the average of analyst estimates in a Bloomberg survey.