On the upside
Bargain hunters lifted shares of Alpha Natural Resources (NYSE: ANR).
MannKind (Nasdaq: MNKD) chairman and chief executive Alfred Mann purchased over $100 million worth of company stock.
On the downside
Disappointing holiday sales weighed down shares of luxury handbag designer Coach (Nasdaq: COH). Seeking Alpha wrote that ServiceNow (NYSE: NOW) used outdated technology and has few growth prospects.
Barron's noted that Standard & Poor's downgraded Radio Shack's (NYSE: KORS) corporate debt rating four levels in 2012.
In the broad market, declining issues outpaced advancers by a margin of nearly 2 to 1 on the NYSE and by more than 5 to 3 on Nasdaq. The broader S&P 500 index lost 7 points to 1419.