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The S&P 500 was up 0.18% to 1,755.18 in afternoon trading Friday.
The Dow Jones Industrial Average rose 0.17% to 15,534.84, while the Nasdaq rose 0.23% to 3,937.88.
The yield on a 10-Year Treasury bond slipped 0.67% to 2.50%.
The price of gold was up 0.27% to $1,353.90 per ounce.
Aliso Viejo-based networking equipment maker QLogic Corp. rose about 11% to $12 for a market value of $1.05 billion. The company reported better-than-expected September quarter income on Thursday and the higher end of its sales guidance range for the current quarter hit above consensus estimates. Interim Chief Executive Jean Hu, who also serves as QLogic’s senior vice president and chief financial officer, said the company has made progress on a restructuring plan announced in the previous quarter.
Irvine-based disk drive maker Western Digital Corp.’s shares rose about 4% to $73.20, a day after reporting better-than-expected revenue and adjusted profit for the September quarter. Western Digital had a recent market value of $17.35 billion.
Huntington Beach-based BJ's Restaurants Inc.'s shares were off about 11% to $25.98, a day after the restaurant operator reported October quarter results that fell below Wall Street analyst estimates. The company had a recent market value of $732.34 million.
Newport Beach-based Alliance Healthcare Services Inc. was down about 9.5% to $28.60 for a market value of $297.07 million. The company’s stock is trading about two times below its average and has been steadily rising this year. Alliance is up more than 350% since January.