The S&P 500 was down 0.9% to 3,840.17 during midday trading.
The Dow Jones Industrial Average fell 0.5% to 31,365.82.
The Nasdaq declined 2.2% to 13,232.00.
The yield on a 10-year Treasury bond fell 0.8% to 1.359%.
The price of gold decreased less than 0.1% to $1,806.90.
The price for a barrel of oil fell to 0.3% to $61.54.
TECHNOLOGY
Digital ad tech company Viant Technology Inc. (Nasdaq: DSP) in Irvine fell 12.2% to $57.10 for a market cap of $3.4 billion. The company, which went public almost two weeks ago, has been retreating from the closing high of $68.31 per share on Feb. 16.
Clean Energy Fuels Corp. (Nasdaq: CLNE) in Newport Beach fell 11.7% to $12.93 per share for a market cap of $2.6 billion. Despite the drop, Clean Energy is up about 64% so far this year.