Trump's call at Davos for cuts to US interest rates, oil prices, and taxes spurred investor optimism for his policies, buoying stocks this week. The major gauges ended the holiday-shortened week with gains, demonstrating the power of Trump's comments even as Wall Street questions his ability to execute the changes.

NEW YORK — U.S. stocks pulled back from their all-time high on Friday as they closed out a second straight winning week . The S&P 500 slipped 0.3% a day after setting a record. The Dow Jones Industrial Average dipped 140 points, or 0.3%, and the Nasdaq composite sank 0.5%.