S&P 500 down for fifth session, Apple spike lifts Nasdaq

The S&P 500 moved in and out of negative territory on Wednesday, buoyed by gains in Apple shares and after the U.S. Federal Reserve kept interest rates unchanged, while painting a relatively upbeat picture of the U.S. economy. Apple shares rose 7.4 percent to $130.31 after touching $130.35, its highest in 18 months. The advance made it the biggest positive influence on the three major indexes, which would all be negative for the day without Apple's boost.