The S&P 500 was flat at 2,107.64.

The Dow Jones Industrial Average was down 0.1% to 17,738.26.

The Nasdaq was up 0.4% to 5,130.13.

The yield on a 10-year Treasury bond was down 0.3% to 2.27%.

The price of gold was down 0.5% to $1,088.

TECHNOLOGY

Irvine-based Western Digital Corp. was up 9.8% to $86.29 and a $20 billion market cap. The storage products maker reported positive quarterly results after markets closed yesterday and analysts at CLSA upgraded Western Digital shares this morning to “outperform” with a $93 price target.

BANKING

Irvine-based Banc of California was down 6% to $12.59 and a $448.3 million market cap despite a generally positive quarterly report from the holding company after markets closed yesterday.

HEALTHCARE

Newport Beach-based Alliance Healthcare Services Inc. was down 4.3% to $14.13 and a $150 million market cap. By midday the radiation and oncology clinic operator’s shares had traded at twice its 90-day average and are down about 10% on the week.