Updated with Treasuries, stock and commodity prices.Banks led the major indices more than 2% higher Monday as Wall Street prepared for an onset of second-quarter earnings. The Dow Jones Industrial Average was up 184.16 points, or 2.3%, at 8331.68, while the S&P 500 tacked on 21.92 points, or 2.5%, to 901.05. The Nasdaq Composite gained 37.18 points, or 2.1%, to 1793.21. Financials rallied, with the KBW Bank index rising 6.5% after Meredith Whitney Advisory Group upgraded Goldman Sachs ( GS) to buy. Bank of America ( BAC) and JPMorgan Chase ( JPM) rose 8.3% and 6.4%, respectively, on the Dow.