Stocks were mixed as the latest round of earnings did little to push the market’s recent rally forward. Time Warner rose 4.1 percent after the company said that net income grew 51 percent in the most recent quarter, but Marathon Oil fell after fourth-quarter net fell 41 percent on higher exploration costs and taxes. Boise Cascade, a maker of wood products and building materials, jumped on its first day of trading. A market rally that began at the start of the year has pushed stock indexes close to record highs. But one investment director said stocks will be unlikely to rise strongly while talks heat up in Washington over US spending cuts.