Both the S&P 500 and Nasdaq have been pushed to repeated record highs in recent weeks, as investors showed increased ambivalence to Trump's tariff threats, and confidence these policies may not damage the U.S. economy as severely as once feared.

Just a day after the S&P 500 and Nasdaq hit record territory, both indexes climbed to fresh highs once again on Friday, though weakness in American Express (AXP) has weighed on the Dow, leaving markets muted.

Business Wall Street closes a record-breaking week with a quiet finish The S&P 500 edged down by a whisper, less than 0.1%, after setting its all-time high the day before. Currenc