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The S&P 500 was down 0.6% to 3,360.81 during midday trading.

The Dow Jones Industrial Average fell 0.8% to 29,165.12.

The Nasdaq decreased 0.3% to 9,698.34.

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The yield on a 10-year Treasury bond plunged 2.6% to 1.55%

The price of gold increased 1.2% to $1,606.

The price for a barrel of oil fell to 0.8% to $51.66.

TECHNOLOGY

Skyworks Solutions Inc. (NASDAQ: SWKS) fell 2.3% to $116.27 a share for a market cap of $19.8 billion. Shares were hit by the warning from Apple Inc. and others about negative impacts on market share and supply chains from the coronavirus in China. Apple is the Irvine-based chipmaker’s biggest customer.

HEALTHCARE

Tustin-based Avid Bioservices Inc. (NASDAQ: CDMO) rose 5.7% to $7.19 a share for a market cap of $405 million. A stock watching website said Avid will break even in a couple months and show “positive profits of $2.6 million in 2021.”