The S&P; fell 0.9% to 4,168.06 during midday trading, the Dow was down 0.2% to 32,890.73 and Nasdaq also dropped 2.1% at 12,571.04.
Crude oil decreased 6.6% to $102.12 a barrel.
Gold was down 1.1% to $1,964 an ounce.
The yield on a 10-year Treasury bond rose 6% to 2.126%.
MEDICAL DEVICESSonendo Inc. (NYSE: SONX) in Laguna Hills jumped 19% to $3.68 with a market cap of $97.7 million. Volume today was almost three times the daily average. Shares of the dental technology device maker are still off by a third over the past year.MEDICARE INSURANCEOrange-based Alignment Healthcare Inc. (Nasdaq: ALHC) dropped 12% to $8.18 with a market cap of $1.6 billion. Shares of the provider of Medicare Advantage insurance plans have fallen about 71% since their 52-week high last June of $28.59.