The S&P 500 was down 0.1% in midday trading to 2,455.79.
The Dow Jones Industrial Average fell 0.4% to 21,545.61.
The NASDAQ increased 0.2% to 6,328.26.
The yield on a 10-year Treasury bond declined 2% to 2.26%.
The price of gold rose 0.7% to $1,242.10.
Irvine-based ShiftPixy Inc. (NASDAQ: PIXY) fell 15% to $8.36 and a $238 million market cap. Since its IPO at $6 on June 30, shares of the company, which provides temp employees for restaurants, have climbed as high as $12.03.
Tilly’s Inc. (NYSE: TLYS) of Irvine declined 7.1% to $10.58 and a $305 million market cap. Shares of the retail clothing chain have risen 30% since their year-to-date low of $8.11 in April.