Bank of America downgraded Achillion Pharmaceuticals (Nasdaq: ACHN) to an Underperform rating.
Fourth quarter earnings tumbled for Vishay Intertechnology (NYSE: VSH) to fall short of expectations as revenue dropped.
Unum Group (NYSE: UNM) blamed a one time charge for falling to a loss for the fourth quarter.
In the broad market, advancing issues outpaced decliners by a margin of more than 9 to 7 on the NYSE while decliners edged out advancers by nearly 10 to 9 on Nasdaq. The Russell 2000 which tracks small cap stocks eased a fraction to 827.