On the upside
Shares of Celldex Therapeutics (Nasdaq: CLDX) surged after the company announced positive results for its breast cancer treatment.
Shares of UniPixel (Nasdaq: UNXL) extended Friday's again after the touchscreen equipment company announced a major deal with an undisclosed PC maker.
On the downside
American International Group (NYSE: AIG) said losses related to superstore Sandy will total $1.3 billion.
Shares of Diamond Foods (Nasdaq: DMND) fell after the snack maker posted a 4th quarter that beat expectations. However, an ongoing accounting probe weighed on the stock.
Shares of clothing retailer Gap (NYSE: GPS) continued to erode. The operator of Old Navy and Banana Republic stores recently reported a 3% increase in same-store November sales which missed estimates.
In the broad market, advancing issues outpaced decliners by a margin of 4 to 3 on both the NYSE and Nasdaq. The S&P 500 added 2 points to 1420.