The S&P 500 was up 0.2% in midday trading to 2,505.68.
The Dow Jones Industrial Average was up 0.3% to 22,343.93.
The NASDAQ was up 0.4% to 6,472.79.
The yield on a 10-year Treasury bond was up 1.3% to 2.23%.
The price of gold was down 1.1% to $1,311.
Aerie Pharmaceuticals Inc. (NASDAQ: AERI) in Irvine was up 3.7% to $60.45 and a $2.2 billion market cap. Shares in the company, which is developing drugs for eye care, are up 50% since early May.
Netlist Inc. (NASDAQ: NLST) in Irvine was up 8.4% to 77 cents and a $54 million market cap on above-average volume. The maker of modular memory subsystems said recently it planned to sell new common shares but hasn’t priced the offering.
Consumer Portfolio Services Inc. (NASDAQ: CPSS) in Irvine was up 4.1% to $4.38 and a $100 million market cap on average volume. It buys, services and sells auto loans.