Traders work on the floor at the New York Stock Exchange, Thursday, Nov. 15, 2012. Stock indexes are inching higher in early trading Thursday after U.S. retail giants Wal-Mart and Target turned in mixed earnings reports. (AP Photo/Seth Wenig)

Photo by: Seth Wenig

Traders work on the floor at the New York Stock Exchange, Thursday, Nov. 15, 2012. Stock indexes are inching higher in early trading Thursday after U.S. retail giants Wal-Mart and Target turned in mixed earnings reports. (AP Photo/Seth Wenig)