Mid-Morning Market Update: Markets Edge Higher; Wal-Mart Names New CEO

Following the market opening Monday, the Dow traded up 0.16 percent to 16,091.03 while the NASDAQ gained 0.02 percent to 3,992.36. The S&P also rose, surging 0.05 percent to 1,805.70. Top Headline Wal-Mart Stores (NYSE: WMT ) announced the retirement of its president and chief executive Mike Duke.