The S&P 500 was down 0.1% in midday trading to 2,470.10.
The Dow Jones Industrial Average fell 0.2% to 21,532.45.
The NASDAQ rose 0.2% to 6,398.40.
The yield on a 10-year Treasury bond increased 1% to 2.25%.
The price of gold was up 0.8% to $1,255.
Boot Barn Holdings Inc. (Nasdaq: BOOT) of Irvine declined 6.4% to $6.25 and a $166 million market cap. The shares have fallen by half year-to-date.
Opus Bank (Nasdaq: OPB) of Irvine climbed 3.2% to $24.25 and a $903 million market cap. The bank reported second-quarter profit more than doubled from the first quarter.