The major U.S. stock indexes opened mixed on Tuesday, with the Dow Jones Industrial Average up, and the S&P 500 and Nasdaq Composite down. All three indexes were trading just below recent record highs.

U.S. stock futures were struggling early Tuesday following record highs in the previous session. S&P 500 futures were edging up less than 0.1% and Nasdaq 100 futures were down 0.1%. The S&P and Nasdaq Composite hit new highs on the first trading day of December but will be tested this week by a series of economic data releases,