The S&P 500 added another 0.1% in early trading after setting an all-time high every day last week. The Dow Jones Industrial Average fell 19 points, or less than 0.1%, as of 9:35 a.m. Eastern time, and the Nasdaq composite is 0.3% higher, coming off its own record.

The S&P 500 and the Nasdaq slipped from record highs on Tuesday as a series of downbeat earnings weighed on the indexes, while investors looked ahead to the U.S. Federal Reserve's policy meeting later in the day.