The S&P 500 rose 0.3% in midday trading to 2,504.53.

The Dow Jones Industrial Average was up 0.1% to 22,312.44.

The NASDAQ gained 1.1% to 6,448.30.

The yield on a 10-year Treasury bond jumped 3.1% to 2.30%.

The price of gold fell 1.1% to $1,288.

AGRICULTURE

American Vanguard Corp. (NYSE: AVD) in Newport Beach was up 7.4% to $23.15 and a $677 million market cap. The chemicals maker said it would buy OHP Inc. in Mainland, Pa., on undisclosed terms.

TECHNOLOGY

Veritone Inc. (NASDAQ: VERI) in Newport Beach was down 20% to $52.60 and a $784 million market cap. Shares in the media and artificial intelligence provider had risen seven-fold in the last five weeks. Share volume at midday was 12 times higher than average.

Acacia Research Corp. (NASDAQ: ACTG) in Newport Beach was down 8% to $4.65 and a $235 million market cap. Acacia, which primarily licenses patents, owns 30% of Veritone. Acacia share volume by midday was six times higher than average.