The S&P 500 fell 0.45% to 1,586.14 in afternoon trading Friday.
The Dow Jones industrial average was off 0.16% to 14,842.06, while the Nasdaq was off 0.35% to 3,288.49.
The yield on a 10-year Treasury bond fell 3.63% to 1.73%.
The price of gold was off 3.90% to $1,503.80 per ounce.
Newport Beach specialty chemicals maker American Vanguard Corp. rose about 5% to $29.60 after an analyst from Topeka Capital Markets reiterated his "buy" rating on the company's stock. American Vanguard had a recent market value of $844.61 million.
Foothill Ranch-based aluminum products maker Kaiser Aluminum Corp. shares were off about 2% to $61.50 for a market value of $1.17 billion.
Santa Ana-based technology distributor Ingram Micro Inc. shares were off about 3% to $18.68 for a market value of $2.81 billion.
Seal Beach-based Clean Energy fell about 2% to $12.81 for a market value of $1.13 billion. Energy companies were generally down in afternoon trading Friday.
Irvine homebuilder Standard Pacific Corp. rose about 3% to $8.74 amid a general uptick among homebuilders in afternoon trading Friday as the housing market continues its rebound. Standard Pacific had a recent market value of $3.03 billion.
Huntington Beach-based Quiksilver Inc. shares fell about 2% to $6.32 for a market value of $1.05 billion. The action sports apparel maker is still up about 48% since the start of the year.