The S&P 500 was up 0.3% in midday trading to 2,343.58.
The Dow Jones Industrial Average was up 0.4% to 20,584.91.
The NASDAQ was up 0.4% to 5,802.71.
The yield on a 10-year Treasury bond was up 1.6% to 2.51%.
The price of gold rose 0.5% to $1,232.
Masimo Corp. in Irvine was up 4.3% to $80.30 and a $4 billion market cap. The device maker reporter a revenue increase of about 10% in its most recent quarter.
Consumer Portfolio Services Inc. in Irvine was up 4.9% to $5.17 and a $123 million market cap. The car loan servicer posted higher revenue for its fourth quarter and full year.