The S&P 500 was up 0.3% in midday trading to 2,771.49.
The Dow Jones Industrial Average was down 0.1% to 24,681.42.
The Nasdaq was up 0.9% to 7,794.39.
The yield on a 10-year Treasury bond rose 0.8% to 2.92%.
The price of gold was 0.3% lower to $1,275.
Ensign Group Inc. (Nasdaq: ENSG) in Mission Viejo is up 3.4% to $39.86 and a $2.1 billion market cap. The REIT owns healthcare facilities.
Glaukos Corp. (NYSE: GKOS) in San Clemente was up 3.2% to $44.82 and a $1.6 billion market cap. It makes a stent to treat glaucoma.