The S&P 500 was up 0.2% in midday trading to 22,393.38

The Dow Jones Industrial Average was flat at 20,957.33.

The NASDAQ was down 0.2% to 6,086.59.

The yield on a 10-year Treasury bond was down 0.3% to 2.35%.

The price of gold fell 0.1% to $1,228.

RESTAURANTS

El Pollo Loco Holdings Inc. in Costa Mesa was up 11% to $13.90 and a $533 million market cap on a positively received quarterly report issued after markets closed yesterday.

FINANCE

Banc of California Inc. in Santa Ana was up 5% to $21.10 and a $1.1 billion market cap in a recovery from a decline yesterday after an analyst downgraded the bank’s shares to “market perform” with a $22 price target.

HEALTHCARE

CombiMatrix Corp. in Irvine was up 20% to $5.80 and a $17 million market cap. The diagnostic lab services company said revenues in its most recent quarter were $3.8 million, up 27% from the same period last year.