The S&P 500 was down 0.3% in midday trading to 2,469.97.
The Dow Jones Industrial Average was up 0.1% to 21,980.38.
The NASDAQ was down 0.5% to 6,332.46.
The yield on a 10-year Treasury bond was steady at 2.25%.
The price of gold was down 0.1% to $1,278.
Boot Barn Holdings Inc. (NYSE: BOOT) in Irvine was up 19.3% to $9.33 and a $248 million market cap. The western wear retailer beat analyst forecasts for earnings and net income.
American Vanguard Corp. (NYSE: AVD) in Newport Beach was up 4.1% to $20.50 and a $611 million market cap. The chemicals maker beat analysts forecast for revenue and net income.
Endologix Inc. (NASDAQ:ELGX) in Irvine was up 2.6% to $4.83 and a $401 million market cap. The maker of devices for abdominal aortic aneurysm treatment reports results after markets close.
New Home Co. Inc. (NYSE: NWHM) in Aliso Viejo was up 3.6% to $11.28 and a $235 million market cap on moderate volume. The developer and home builder reported positively received results last week.