Fear that the Trump administration will announce tariffs on all remaining imports from China helped knock U.S. stocks from a strong early gain to another sharp loss Monday. Technology companies sank again after Bloomberg News reported that the U.S. is planning new tariffs if the two sides don't make progress in trade talks next month.
The S&P 500 index shed 17.44 points, or 0.7 percent, to 2,641.25.
The Dow Jones Industrial Average slumped 245.39 points, or 1 percent, to 24,442.92.
The Nasdaq composite sank 116.92 points, or 1.6 percent, to 7,050.29.
The Russell 2000 index of smaller-company stocks slipped 6.51 points, or 0.4 percent, to 1,447.31.
For the year:
The S&P 500 is down 32.36 points, or 1.2 percent.
The Dow is down 276.30 points, or 1.1 percent.
The Nasdaq is up 146.90 points, or 2.1 percent.
The Russell 2000 is down 58.20 points, or 3.8 percent.