The S&P 500 was down 0.6% to 3,777.98 during midday trading.

The Dow Jones Industrial Average fell 0.2% to 30,946.45.

The Nasdaq decreased 0.4% to 12.988.31.

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The yield on a 10-year Treasury bond climbed almost 4% to 1.177 %

The price of gold decreased 0.5% to $1,184.40.

The price for a barrel of oil rose 1.3% to $52.95.

HEALTHCARE

Lake Forest-based medical device maker STAAR Surgical Company (NASDAQ:STAA) rose 5.6% to $88.66 per share for a market cap of $4.1 billion. “STAAR Surgical's earnings over the next few years are expected to double, indicating a very optimistic future ahead. This should lead to stronger cash flows, feeding into a higher share value,” analyst site SimplyWallSt.com said earlier in the day.

TECHNOLOGY

Costa Mesa-based artificial intelligence company Veritone Inc. (Nasdaq: VERI) fell 4.6% to $34.85 per share for a market cap of $1.1 billion The stock has been retreating from the recent high of $38.45 per share set last Friday.