The Nasdaq composite held up the best among the major indexes, but wavered and was up just 0.2% in recent trades. The S&P 500 also wavered and edged into positive ground after falling 0.8% Monday. Small caps outpaced the market, with the Russell 2000 index lifting 0.5% higher. The Russell ended a six-day winning streak Monday.

The S&P 500 and Nasdaq registered record closing highs on Thursday, and Nvidia's market value closed above $4 trillion for the first time, while the Brazilian real recovered some losses following U.S.