The S&P 500 was down 0.1% to 2,947.06 in midday trading Friday.
The Dow Jones Industrial Average fell 0.4% to 24,384.06, while the Nasdaq rose 0.2% to 9,305.03.
Crude oil slipped about 3% to $32.91.
Gold rose 0.8% to $1,735 an ounce.
The yield on a 10-year Treasury bond was off 3% to 0.7%.
Shares of Irvine-based Inari Medical Inc. (Nasdaq: NARI) popped 119% to $41.50 in its first day of trading.
For more on the medical device maker, whose products treat blood clots in veins, see the May 25 print edition of the Business Journal.
Irvine developer Five Point Holdings LLC (NYSE: FPH) sank 4.7% to $5.10, a day after reporting first-quarter misses. The company has a market capitalization of $756 million.