The S&P 500 was off 0.04% to 1,809.85 in afternoon trading Thursday.
The Dow Jones Industrial Average was up 0.14% to 16,190.72, while the Nasdaq was off 0.24% to 4,060.17.
The yield on a 10-year Treasury bond rose 1.53% to 2.93%.
The price of gold slipped 3.31% to $1,194.10 per ounce.
Irvine-based Pacific Premier Bancorp Inc. was up about 7% to $15.92 for a market value of $265.02 million. The company said Wednesday Pacific Premier Chief Executive Steve Gardner was elected to the Federal Reserve Bank of San Francisco board of directors.
Anaheim-based drug maker Questcor Pharmaceuticals Inc. was down about 4% to $52.78 for a market value of $3.11 billion. The New York Times published an article Wednesday on questions surrounding the relationship between the Questcor and Chronic Disease Fund, a nonprofit that assists patients in need of the drug maker’s H.P. Acthar Gel product.
Aliso Viejo-based Avanir Pharmaceuticals Inc. was up about 6% to $2.82 for a market value of $428.18 million.