Stocks shot up at the bell, despite a grisly nonfarm payrolls report, as investors bet on a stimulus package boost. The Dow climbed 100 points, while the S&P and Nasdaq each gained about 1.4%. Unemployment hit 7.6% after a grim January, the Labor Department announced today. But traders were more interested in the bank rescue measures Timothy Geithner is expected to disclose later. (More stock market stories.)