The S&P 500 was up 0.2% to 2,130.17.
The Dow Jones Industrial Average was flat at 18,291.31. The Nasdaq was up 0.3% to 5,084.72.
The yield on a 10-year Treasury bond was down 2.7% to 2.19%.
The price of gold was down 0.4% to $1,204.
Irvine-based Habit Restaurants Inc. was up 5% to $39.16 and a $1 billion market cap. The fast-casual burger chain is trading at a higher volume than average after New York City-based Lomas Capital Management disclosed a new, 2.6% stake in Habit in a regulatory filing. The stake is 361,585 shares worth $14.2 million at the midday share price.
Santa Ana-based BioCorRx Inc. was up 8.6% to 8 cents and an $11.3 million market cap. The alcoholism treatment center operator reported revenue of about $275,000 in its first quarter, up 110% compared with the first quarter of 2014, while expenses declined in the quarter by 46% from about $552,000 to $283,000.