Shares of the following companies had unusual moves in U.S. trading. Stock symbols are in parenthesis and prices are as of 4 p.m. in New York.
Hospital and medical-device stocks rebounded after a U.S. doctors group said a program to pre-approve Medicare hospital payments for pacemakers and joint replacements is limited to Florida. Tenet Healthcare Corp. (THC US) rallied 12 percent, the most in the Standard & Poor’s 500 Index, to $4.70. St. Jude Medical Inc. (STJ US) climbed 3.9 percent to $37.21. Medtronic Inc. (MDT US) gained 4 percent to $35.98.
Financial shares advanced as Italian Prime Minister Mario Monti proposed budget cuts and German Chancellor Angela Merkel and French President Nicolas Sarkozy pushed for a rewrite of the EU’s governing rules to tighten economic cooperation. Morgan Stanley (MS US) rose 6.8 percent to $16.57. Citigroup Inc. (C US) increased 5.9 percent to $29.83. JPMorgan Chase & Co. (JPM US) jumped 3.7 percent to $33.51. Goldman Sachs Group Inc. (GS US) gained 2.6 percent to $99.82.
Affymax Inc. (AFFY US) rose 19 percent, the most since Aug. 2010, to $6.26. The company’s experimental anemia medicine works as well as treatments marketed by Amgen Inc. (AMGN US) and Johnson & Johnson (JNJ US) for patients with chronic kidney disease, U.S. regulators said.
Assured Guaranty Ltd. (AGO US) rallied 8.7 percent to $12.23, the highest 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 US) rose the second-most in the S&P 500 Index, rallying 10 percent to $13.13. 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 3.9 percent to $15.01, the highest 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 US) increased 9.6 percent, the most since Nov. 15, to $5.69. 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 US) climbed 3.7 percent to $32.92, the highest price since Nov. 11. 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 US) climbed 4.6 percent to $18.32, the highest 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 US), world’s largest offshore driller to “outperform” from “market perform.” The stock added 5.3 percent to $45.01.
Regeneron Pharmaceuticals Inc. (REGN US) dropped the most in the Russell 1000 Index, erasing 5.5 percent to $55.06. 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 US) surged 51 percent to $39.75 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 US) rose 20 percent to $39.50, the highest price since it went public in September 2005. The staffing management company is the “most obvious” acquisition target for Oracle Corp. (ORCL US), after SAP’s deal with SuccessFactors, according to BMO.
Cornerstone OnDemand Inc. (CSOD US) and Ariba Inc. (ARBA US) which were picked by Deutsche Bank AG among potential takeover targets, rose 12 percent to $18.20 and 14 percent to $33.95, respectively.