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Indexes continued their climb in August on optimism of a coronavirus vaccine and the amount of stimulus in the economy.

The S&P 500 rose 1.2% to 3,373.55 in midday trading while the Dow Jones Industrial Average climbed 0.7% to 27,869.37 and the Nasdaq jumped 1.9% to 10,989.04.

Crude oil was up 1.9% to $42.39.

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Gold was up 0.5% to $1,955.40 an ounce.

The yield on a 10-year bond rose 0.5% to 0.661%.

HEALTHCARE

Inari Medical Inc. (Nasdaq: NARI) rose 13% to $69.90 for a market cap of $3.4 billion. The Irvine-based medical device maker, whose products treat blood clots in veins, yesterday reported second-quarter results that beat analysts’ consensus estimate.

TECHNOLOGY

Veritone Inc. (Nasdaq: VERI) dropped 7.5% to $11.15 and a $310 million market cap. Shares of the Costa Mesa-based firm, which is trying to use artificial intelligence in the media advertising space, are now down 14% after reporting second quarter results on Aug. 10 that showed sales slippage in the AI unit.