Mid-Day Market Update: US Stocks Turn Higher; MAKO Surgical Shares Surge On Acquisition News

Midway through trading Wednesday, the Dow traded up 0.16 percent to 15,359.38 while the NASDAQ surged 0.27 percent to 3,778.27. The S&P also rose, gaining 0.19 percent to 1,700.70. Top Headline AutoZone (NYSE: AZO ) reported a 15% rise in its fiscal fourth-quarter earnings. AutoZone's quarterly profit surged to $371.2