The S&P 500 was down 0.2% to 3,619.42 during midday trading.
The Dow Jones Industrial Average fell 0.5% to 29,789.53.
The Nasdaq rose 0.1% to 11,937.75.
The yield on a 10-year Treasury bond dropped 3.8% to 0.872%.
The price of gold decreased 0.1% to $1,885.80.
The price for a barrel of oil declined 0.9% to $40.96.
Artificial intelligence company Veritone Inc. (Nasdaq: VERI) in Costa Mesa fell 4.3% to $12.22 per share for a market cap of $339 million. Despite the dip, Veritone shares have gained 25% over the last month
Irvine-based heart valve maker Edwards Lifesciences Corp. (NYSE: EW) rose 3.4% to $85 per share for a market cap of $53 billion. The SmarterAnalyst.com website said Oppenheimer today maintained a Buy rating on Edwards with a price target of $93. SmartAnalyst said Oppenheimer’s view is that Edwards climb “won’t stop here.”