The S&P 500 was up 0.3% in midday trading to 2,447.20

The Dow Jones Industrial Average was up 0.3% to 21,848.84.

The NASDAQ was up 0.2% to 6,271.27.

The yield on a 10-year Treasury bond was down 1.1% to 2.17%.

The price of gold was up 0.4% to $1,298.

TECHNOLOGY

TTM Technologies Inc. (NASDAQ: TTMI) in Costa Mesa was up 2.3% to $13.86 and a $1.4 billion market cap. Stifel Nicolaus upgraded the printed circuit board maker’s shares to “buy” from “hold.” TTM’s average price target from analysts is $21.

Netlist Inc. (NASDAQ: NLST) in Irvine was up 10.3% to 71 cents and a $50 million market cap. Shares in the maker of modular memory server subsystems are up 19% since it sold 8.5 million common shares for 60 cents apiece, last week.

RETAIL

Tilly’s Inc. (NYSE: TLYS) in Irvine was up 8.6% to $10.25 and a $295 million market cap. The youth apparel retailer reported revenue and adjusted earnings that beat Wall Street expectations, and its shares are up about 20% on the week.