Affymax, Gannett, Nabors, Tenet, Time Warner: U.S. Equity Movers

Shares of the following companies are having unusual moves in U.S. trading. Stock symbols are in parenthesis and prices are as of 1:50 p.m. in New York.

Hospital and medical-device stocks rebounded as Goldman Sachs Group Inc. (GS) said investors over-reacted to a report that Medicare may not pay for hospital stays in 11 states for heart and orthopedic procedures. Tenet Healthcare Corp. (THC) rallied 11 percent to $4.66. St. Jude Medical Inc. (STJ) climbed 3 percent to $36.91. Medtronic Inc. (MDT) gained 4.1 percent to $36.03.

Financial shares advanced as Italian Prime Minister Mario Monti proposed budget cuts and leaders prepared to meet on Europe’s debt crisis. Morgan Stanley (MS) rose 5.9 percent to $16.44. Citigroup Inc. (C) increased 6 percent to $29.87. JPMorgan Chase & Co. (JPM) jumped 3.7 percent to $33.51. Goldman Sachs Group Inc. (GS US) gained 2.4 percent to $99.60.

Affymax Inc. (AFFY) rose 18 percent to $6.20 after jumping as much as 26 percent, the most intraday since August 2010. The company’s experimental anemia medicine works as well as treatments marketed by Amgen Inc. (AMGN) and Johnson & Johnson (JNJ) for patients with chronic kidney disease, U.S. regulators said.

Assured Guaranty Ltd. (AGO) rallied 10 percent to $12.40 after rising to $12.69 earlier, the highest intraday price since Nov. 8. The bond insurer was rated a new “buy” at BTIG LLC, which said the shares may more than triple to $35.

Gannett Co. (GCI) rose the second-most in the Standard & Poor’s 500 Index, rallying 10 percent to $13.12. The owner of 82 newspapers and 23 television stations was raised to “buy” from “neutral” at Lazard Capital Markets.

GSV Capital Corp. (GSVC US) climbed 4.5 percent to $15.10 and advanced to $15.64 earlier, the highest intraday price since Nov. 4. The U.S. investment Fund, which owns stakes in venture- based companies such as Zynga Inc. and Facebook Inc., may be attractive to investors who can tolerate some risk as more social media, green technology and education companies prepare to go public, Barron’s reported.

Intralinks Holdings Inc. (IL) increased 9.1 percent to $5.66 after jumping as much as 19 percent, the most intraday since Aug. 11. Discovery Group LLC reported a 5.8 percent stake in the software maker and may seek talks with management, the board and shareholders.

MetLife Inc. (MET) climbed 4.4 percent to $33.16 after rallying to $33.70, the highest intraday price since Nov. 8. The largest U.S. life insurer said earnings will probably climb in 2012 as Chief Executive Officer Steven Kandarian reshapes management a year after the firm’s biggest acquisition.

Nabors Industries Ltd. (NBR) climbed 4.3 percent to $18.28 and advanced to $18.83 earlier, the highest intraday price since Nov. 18. The world’s largest land-drilling contractor was raised to “outperform” from “market perform” at BMO Capital Markets.

The brokerage also boosted Transocean Ltd. (RIG) , world’s largest offshore driller to “outperform” from “market perform.” The stock added 5.4 percent to $45.06.

Regeneron Pharmaceuticals Inc. (REGN) dropped the most in the Russell 1000 Index, erasing 5.1 percent to $55.33. A study failed to differentiate the company’s Eylea medicine from a Roche Holding AG drug used to treat a blindness-causing eye disorder.

SuccessFactors Inc. (SFSF) surged 51 percent to $39.67 for the biggest gain in the Russell 2000 Index. SAP AG agreed to buy SuccessFactors for $40 a share, or 52 percent more than the closing price on Dec. 2, to extend its reach in the market for cloud computing.

Taleo Corp. (TLEO) rose 20 percent to $39.68 and surged to $40.72 earlier, the highest intraday price since it went public in September 2005. The staffing management company is the “most obvious” acquisition target for Oracle Corp. (ORCL) , after SAP’s deal with SuccessFactors, according to BMO.

Cornerstone OnDemand Inc. (CSOD US) and Ariba Inc. (ARBA) which were picked by Deutsche Bank AG among potential takeover targets, rose 11 percent to $18 and 12 percent to $33.38, respectively.

Time Warner Cable (TWC) sank 2.1 percent, the second- biggest decline in the S&P 500, to $62.46. Irene Esteves, chief financial officer at the second-largest U.S. cable-television provider, said the New York-based company doesn’t “feel a need to get larger.” She spoke at a UBS AG summit.

To contact the reporter on this story: Inyoung Hwang in New York at ihwang7@bloomberg.net

To contact the editor responsible for this story: Nick Baker at nbaker7@bloomberg.net

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