The S&P 500 was down 0.4% in midday trading to 2,339.83.
The Dow Jones Industrial Average fell 0.6% to 20,513.88.
The NASDAQ declined 0.3% to 5,842.68.
The yield on a 10-year Treasury bond dropped 2.9% to 2.19%.
The price of gold rose 0.7% to $1,293.
Netlist Inc. jumped 13% to $1.17 and a $72 million market cap. The Irvine-based maker of data storage products yesterday announced a stockholder rights agreement with an initial purchase price of $6.56 per right in connection with patent infringement proceedings against SK Hynix Inc.
Auxilio Inc. in Mission Viejo fell 4.4% to $6.15 and a $58 million market cap on high volume. The print management and IT security firm’s shares have risen more than seven-fold year-to-date.