Major indices declined in midday trading on declines in transportation and utility stocks and continued low oil prices.
The S&P 500 was down 1.2% to 2,017.18. The Dow Jones Industrial Average was down 1.5% to 17,227.60. The Nasdaq was down 1.1% to 4,947.21.
The yield on a 10-year Treasury bond was down 2% to 2.2%.
The price of gold was up 1.5% to $1,065.
Irvine-based CoreLogic Inc. was down 4% to $34.43 and a $3 billion market cap. The real estate information provider said it would pay $475 million to buy an appraisal technology provider.
Irvine-based DNA testing provider CombiMatrix Corp. was down 5% to 69 cents and a $9 million market cap on high volume.