Analysts credited 'bottom fishing' by investors who think the market has fallen too far given economists' expectations for a continued US recovery. But some market-watchers were warning that other recent rallies had turned out to be short-lived. 'Clearly, there is a pent-up demand,' said Tony Dwyer, chief market strategist at investment firm Kirlin Securities. 'We may see a little technical bounce in the next day or two, but it won't amount to much. There's still too much negativity out there.'