At the opening bell, the Dow Jones Industrial Average rose 0.41%, the S&P 500 rose 0.51%, and the Nasdaq Composite rose 0.76%. Amazon (AMZN.O) rose 0.40% after a massive cloud service outage disrupted internet connectivity for many businesses worldwide. Services have largely returned to normal, though. Apple (AAPL.O) rose 1.83% after an investment bank upgraded its stock rating to "buy" due to bullishness on iPhone demand.