Wall Street mixed as investors eye Apple earnings

U.S. stocks were mixed on Tuesday as Federal Reserve policymakers kicked off a two-day interest rate meeting and investors braced for quarterly scorecards from Apple and Twitter. Choppy stock trading followed a recent rally to consecutive record highs on the S&P 500 that has stretched price-to-earnings multiples to levels that some investors say presumes that companies will beat second-quarter estimates. Five of the 10 major S&P sectors rose, while a 1.49 percent drop in the telecom serv