Yahoo shares rose 3% ahead of the bell after the company's Q3 handily beat estimates late Monday. Yahoo will be in the spotlight after its chief executive officer said it is economically attractive to buy back the stock at current price levels. Analysts at S&P Capital IQ predict Q3 earnings for companies in the S&P 500 will grow by just 0.04% overall this quarter, the worst since the third quarter of 2009. Apple is expected to unveil its iPad mini at an event in California at 1 p.m. ET. European stocks were lower in morning trading. Britain's FTSE 100 fell 0.5%, the DAX in Germany lost 0.6% and France's CAC 40 declined 0.7%.
