Stocks barely budged at the open, after a good quarter from Apple and a lousy one from UPS. The Dow fluctuated between gains and losses, and was recently down 13 points. The S&P and Nasdaq were similarly flat. Apple rose 3% after beating expectations with a 15% earnings jump. Radio Shack and JetBlue also posted nice numbers. But other reports were less rosy: Dow component UPS saw its net income fall 56%.