The S&P 500 was down 0.1% in midday trading to 2,100.75.

The Dow Jones Industrial Average was flat at 17,862.36.

The Nasdaq was down 0.3% to 5,125.88.

The yield on a 10-year Treasury bond was up 0.8% to 2.25%.

The price of gold was down 0.1% to $1,105.

RESTAURANTS

Irvine-based Habit Restaurants Inc. was up 8% to $26.75 and a $640 million market cap. The fast-casual burger chain yesterday reported higher quarterly revenue and earnings.

RETAIL

Irvine-based Tilly’s Inc. was down 6.4% to $6.89 and a $196 million market cap. Analysts at B. Riley downgraded the apparel retailer’s shares to “neutral.”

HEALTHCARE

Biolase Inc. was down 21% to 73 cents and a $42 million market cap. The dental laser maker yesterday reported a net loss of $5.3 million on $11.2 million in net revenue for the quarter, compared with a $3.5 million net loss and $12.7 million in net revenue for the same period last year.

Irvine-based Lombard Medical Inc. was down 13% to $2.80 and a $56 million market cap. The aortic stent maker reported a net loss of $8.5 million on revenue of $4.2 million for its most recent quarter. Both numbers were about the even with the same period last year.