The S&P 500 fell 0.2% Tuesday to 1,914.23, its worst one-day performance since January.
The Dow Jones Industrial Average was down 8.7 points, or 0.3%, to 21,934.10.
The Nasdaq composite was down 1.3 points, OR 0.1%, to 5,738.19.
The Russell 2000 index of companies down 3.1% to 2,873.13.
The index was up 7.9% in 2018.
The Dow fell by 2.2 points to 21.18, the S&P lost 2.7 to 20,846.42 and the Nasdaq was down 2.6 to 20.4.
The S&ap was up 0.7% at 21,845.88.
The S, +0.00% was up 1.6%.
The Nas, +1.10% was down 0.6% at 1,811.88 and the Russell 2000 was down 3% at 2,611.82.