U.S. stock futures were lower Tuesday morning, indicating Wall Street is poised for a tough start after the Dow rallied 413 points Monday. Corporate earnings gave way to signs of a thaw in money markets and a possible second stimulus plan helped sentiment Monday. Today it will be all about earnings as several Dow industrials are due to report as well as other big names.

American Express Co. (NYSE: AXP) reported late Monday, saying its profit fell 24% in the third quarter due to less spending by cardholders and as more are having trouble paying off debt. Still, the drop was less than expected and AXP shares are up 4.7% in pre-market trading.

Pfizer Inc. (NYSE: PFE) shares are also trading higher in pre-market -- 2.3% higher -- after it reported results this morning. The world's biggest drugmaker's profit tripled because of higher sales of the pain pill Lyrica and lower costs from the 11,000 job Pfizer had cut last year. The results beat estimates.

Dupont deNemours & Co. (NYSE: DD) shares, however, are trading 1.9% lower in pre-market trading after the chemicals giant cut its 2008 earnings view after reporting third-quarter profit that beat analyst estimates.

Caterpillar Inc. (NYSE: CAT) and 3M Co. (NYSE: MMM) are two Dow components that have also just reported earnings.