Mid-Day Market Update: U.S. Stocks Rise; Orbitz Shares Surge On Upbeat Results

Midway through trading Thursday, the Dow traded up 0.09 percent to 15,978.01 while the NASDAQ surged 0.40 percent to 4,218.16. The S&P also rose, gaining 0.19 percent to 1,822.78. Leading and Lagging Sectors Utilities stocks were the top gainers in Thursday's trading, with Calpine (NYSE: CPN ) leading advancers. Utilities stocks