U.S. stock futures were falling early Tuesday after the S&P 500 closed above 6,000 for the first time in the previous session. The index is on course for its first back-to-back yearly gains of more than 20% for the first time since 1998.

S&P 500 futures are down 0.2%. Dow Jones Industrial Average futures are dipping 0.1%. Nasdaq 100 futures are slipping 0.2%. On Monday, the Dow Jones Industrial Average rose 304 points, or 0.69%, to 44,

Stock futures are little changed Tuesday as the market looks to extend a weeklong, election-fueled rally that has pushed major indexes to a series of record highs.