The S&P 500 fell 0.3% to 3,572.43 in midday trading Friday.
The Dow Jones Industrial average declined 0.5% to 29,330.02, while the Nasdaq increased 0.1% to 11,914.62.
Crude oil rose 0.4% to $41.91.
Gold ticked up 0.5% to $1,870.60.
The yield on a 10-year Treasury fell 2.1% to 0.84%.
Shares of Huntington Beach restaurant operator BJ’s Restaurants Inc. (Nasdaq: BJRI) fell 4.7% to $35.78 for a market cap of $798.6 million.
Local restaurant operators were generally down on Friday with El Pollo Holdings Inc. (Nasdaq: LOCO) of Costa Mesa off 2.3% to $14.91 for a market cap of $543.4 million. Newport Beach-based Chipotle Mexican Grill Inc. (NYSE: CMG) declined 1.7% to $1,288.78 for a market cap of $36.2 billion. Del Taco Restaurants Inc. (Nasdaq: TACO) of Lake Forest was off 1% to $8.23 for a market cap of $308.3 million.
Glaukos Corp. (NYSE: GKOS) fell 4.9% to $65. The Aliso Viejo-based medical device maker was trading on volume lower than its daily average with a market cap of $2.9 billion.