The S&P 500 was down 0.1% in midday trading to 2,777.05
The Dow Jones Industrial Average was up 0.1% to 19,883.15
The NASDAQ was up 0.4% to 5,636.46.
The yield on a 10-year Treasury bond rose 1.5% to 2.49%.
The price of gold fell 0.4% to $1,207.
Biolase Inc. in Irvine was down 6% to $1.47 and a $99 million market cap on moderate volume. The company makes dental lasers.
Kush Bottles Inc. in Santa Ana was down 4% to $2.58 and a $128 million market cap on moderate volume. The company makes packaging and supplies for cannabis products.