Investor concerns over the impact of the Omicron variant sent U.S. indexes tumbling Monday.
The S&P 500 slipped 1.7% to 4,541.24 in midday trading.
The Dow Jones Industrial Average fell 1.8% to 34,713.44, while the Nasdaq decreased 1.8% to 14,899.77.
Crude oil was off 5.8% to $66.77.
Gold was down 0.6% to $1,793.70.
The yield on a 10-year Treasury fell 0.4% to 1.39%.
Shares of dental device maker Sonendo Inc. (NYSE: SONX) were down 10.2% to $6.49. The Laguna Hills company, with a market cap of $171 million, is down about 30% since it began trading in October.
Xponential Fitness Inc. (NYSE: XPOF) fell 6.8% to $18.07 for a market cap of $431.8 million. The Irvine fitness franchisor’s stock is still up, by 47.5%, since going public in July.