For the first time in more than a week, the S&P 500 closed lower.
The market benchmark fell 0.3% to snap its streak of closing highs at six days. The Dow Jones Industrial Average fell 204 points, or 0.5%. The Nasdaq Composite fell 0.4%.
While a handful of big stocks in the Dow such as UnitedHealth were down on earnings, the S&P and Nasdaq were actually on track to close higher. Then came tariff talk.