The S&P 500 was up 0.2% in midday trading to 2,486.22.
The Dow Jones Industrial Average was up 0.1% to 22,134.60.
The NASDAQ increased 0.4% to 6,406.64.
The yield on a 10-year Treasury bond climbed 0.9% to 2.28%.
The price of gold declined 0.2% to $1,262.
Irvine’s Aerie Pharmaceuticals Inc. (NASDAQ: AERI) down 9.9% to $50.58 and a $1.8 billion market cap. Volume was twice its daily average. Shares of the eye care drug developer have more than doubled in the past year.
Newport Beach’s William Lyon Homes (NYSE: WLH) rose 5.1% to $23.18 and a $740 million market cap. The homebuilder on Aug. 7 reported on Aug. 7 that second-quarter homebuilding revenue rose 30% and net income climbed 29%. The Shares have climbed 52% since its 52-week low a year ago.