Banks pulling market lower...

Early market action is driven by weakness in financials (XLF -3.1%), which has wiped out yesterday's big gains in the sector. Big banks are taking their cue from JPMorgan Chase (JPM -4.7%), which reported lower profits and said it will trim headcount at its investment bank by 1,000 jobs. Bank of America (BAC -4.1%) and Citigroup (C -5.3%) report results next week.