The S&P 500 fell 0.4% to 2,443.74.
The Dow Jones Industrial Average declined 0.1% to 21,510.
The NASDAQ dropped 0.5% to 6,211.
The yield on a 10-year Treasury bond fell 1% to 2.17%.
The price of gold declined 0.2% to $1,244.
Biolase Inc. of Irvine dropped 9.3% to 98 cents on volume of 194,000 shares, about four times its daily average. Shares of the dental laser maker have fallen by half since the beginning of the year, and the company now has a $67 million market cap.
Irvine-based Tilly’s Inc. (TLYS) declined 5% to $9.83 and a $283 million market cap. Shares of the youth apparel retailer have almost doubled from a year ago.