U.S. stock indexes are rising Wednesday after a four-day losing streak knocked Wall Street off its all-time high and threw some of its brightest stars into reverse. The S&P 500 was up 0.8% in morning trading.

U.S. stocks opened little changed, with investors likely staying sidelined until they can get more clarity on President Donald Trump's plans for tariffs on Mexican and Canadian goods, inflation and the market for artificial intelligence.