Wall Street mixed as Alphabet, Microsoft tumble

Wall Street was mixed on Friday as disappointing quarterly reports from Microsoft and Alphabet slammed tech stocks and weighed against a surge in oil prices that lifted energy shares. Microsoft dropped 6.8 percent, contributing the biggest drag to the S&P 500, and Google's parent Alphabet lost 5.6 percent as investors punished both companies for missing profit and revenue estimates. Helped by a softer dollar and a recovery in oil prices, the S&P 500 has recovered from a steep selloff ear