The S&P 500 was down 0.1% to 3,120.22 during midday trading.
The Dow Jones Industrial Average dropped 0.3% to 27,941.43.
The Nasdaq climbed 0.2% to 8,570.79.
The yield on a 10-year Treasury bond fell 1.1% to 1.79%.
The price of gold increased 0.2% to $1,475.
The price for a barrel of oil plunged 2.4% to $55.69.
Irvine-based data analytics software provider Alteryx Inc. (NYSE: AYX) rose 4.5% to $102.88 per share for a market cap of $6.7 billion. Zacks Research called Alteryx one of the “top stock picks" for this week.
Irvine-based Western and workwear retailer Boot Barn Holdings Inc. (NYSE: BOOT) fell 4.2% to $41.95 per share for a market cap of $1.2 billion, almost reversing the 5% gain of the day before. The share price has more than doubled since the start of the year.