The S&P 500 rose 0.40% to 1,467 in midday trading Thursday.
The Dow Jones Industrial Average was up 0.31% to 13,432, while the Nasdaq was up 0.09% to 3,109.
The yield on a 10-year treasury bond rose 1.51% to 1.88%.
The price of gold was up 1.30% to $1,677 per ounce.
Shares of Anaheim drug maker Questcor Pharmaceuticals Inc. fell about 3% to $26 for a market value of $1.5 billion.