The S&P 500 was flat at 2,044.73 in midday trading.
The Dow Jones Industrial Average was flat at 17,169.03, and the Nasdaq was flat at 4,857.91.
The yield on a 10-year Treasury bond fell 0.7% to 2.11%.
The price of gold fell 0.8% to $1,152.50.
Huntington Beach-based Quiksilver Inc. was up 8% to $1.82 and a $310 million market cap. A shareholder of the surf apparel maker and seller again called for the company to put itself up for sale.
Irvine-based Habit Restaurants Inc. was down 8% to $32.66 and an $845 million market cap. The fast-casual burger chain said earnings in its fourth quarter fell by more than half year-over-year.