The S&P 500 was up 0.3% in midday trading to 2,263.70.
The Dow Jones Industrial Average was up 0.2% to 19,880.02.
The NASDAQ was up 0.6% to 5,467.57.
The yield on a 10-year Treasury bond was down 2.3% to 2.53%.
The price of gold was up 0.4% to $1,142.
HCP Inc. in Irvine was up 3.7% to $30.20 and a market cap of $14 billion on moderate volume. The company owns and operates healthcare facilities.
Irvine-based Endologix Inc. was up 3% to $7.22 and a $595 million market cap. The maker of medical devices to treat abdominal aortic aneurysms said the Australian Therapeutic Goods Administration approved the AFX2 Bifurcated Endograft Systems for inclusion on the Australian Register of Therapeutic Goods.