The S&P 500 was up 0.2% in midday trading to 2,352.46.
The Dow Jones Industrial Average was up 0.2% to 20,710.16.
The NASDAQ was up 0.1% to 5,827.32.
The yield on a 10-year Treasury bond rose 0.8% to 2.41%.
The price of gold fell 0.3% to $1,246.
Foundation Building Materials in Tustin was up 4% to $17.20 and a $735 million market cap. The maker of construction products, which went public last month, has seen a 9% rise in its shares over the last two trading sessions; it reports results on Monday.
Aeolus Pharmaceuticals Inc. in Mission Viejo was down 64% to 8 cents and a $12 million market cap. The company, which is developing possible treatments for fibrosis, oncology, infectious, and central nervous system diseases, received word that BARDA, a U.S. Dept. of Health and Human Services agency that had provided $30 million in funding to the company to-date, had decided not to continue backing its research.
Kush Bottles Inc. in Santa Ana was up 8% to $1.88 and a $93 million market cap on moderate volume. The company makes packaging products for the cannabis industry.
Willdan Group Inc. in Anaheim was up 6% to $31.07 and a $261 million market cap on above-average volume. The company is an engineering consultant.
Impac Mortgage Holdings Inc. in Irvine was up 3.4% to $12.59 and a $200 million market cap on above-average volume. Impac is a residential lender.