The S&P 500 was up 0.3% in midday trading to 2,094.66.
The Dow Jones Industrial Average was up 0.2% to 17,881.78.
The NASDAQ was up 0.6% to 4,851.28.
The yield on a 10-year Treasury bond was up 1.5% to 1.39%.
The price of gold was up 0.6% to $1,367.
Irvine-based Impac Mortgage Holdings Inc. was up 3.2% to $17.55 and a $216 million market cap on moderate volume. Impac is a residential mortgage lender. Shares are up 11% in the last two trading sessions.
Anaheim-based Bridgford Foods Corp. was up 9.1% to $13.85 and a $126 million market cap on above-average volume. Bridgford makes frozen and snack food products. Shares in the company are up 54% year-to-date.