Markets Open Higher; Merck Posts Upbeat Profit By: Benzinga via Benzinga July 29, 2014 at 11:00 AM EDT Following the market opening Tuesday, the Dow traded up 0.37 percent to 17,045.40 while the NASDAQ surged 0.52 percent to 4,467.96. ... Read More >> Related Stocks: Cognex Corp Comp En DE MN Cemig ADR Consolidated Communications Holdings Inc Corning Cpfl Energia S.A. Frontier Communications Herbalife Ltd Merck & Co Mimedx Group Inc