The S&P 500 increased 0.2% in midday trading to 2,837.48.
The Dow Jones Industrial Average was flat at 26,203.82.
The Nasdaq jumped 0.6% to 7,450.80.
The yield on a 10-year Treasury bond fell 1.4% to 2.63%.
The price of gold was up 0.4% to $1,337.
ShiftPixy Inc. (Nasdaq: PIXY) dropped 6.1% to $3.84 and a $110 million market cap. The company reported yesterday that fiscal first-quarter revenue increased 15% to $6.5 million. Prior to today, shares of the Irvine-based maker of an app for restaurant shift workers had climbed 42% so far this year.
ChromaDex Corp (Nasdaq: CDXC) declined 7.1% to $5.25 and a $283 million market cap. Shares of the Irvine-based nutritional ingredients maker have fallen 19% since Jan. 10.