US blue chips surged on Friday, with all companies included in Dow Jones Industry Average posting gains. Positive US consumer confidence data and optimism over Eurozone lifted stock prices. Moreover, easing speculation after disappointing US GDP data for Q2 pushed equities higher. Dow Jones Industry Average skyrocketed 1.46%, being supported by health care and base materials sectors. Merck & Co surged 4.04% after the pharmaceutical firm announced better than expected results for Q2. Pfizer also followed bullish trend, rising 1.40%. Meanwhile, commodity producer, Alcoa, gained 3.37%. Oil and gas companies also climbed on higher oil prices. Exxon Mobil and Chevron advanced 1.07% and 0.86%.