The S&P 500 was up 0.2% in midday trading to 2,442.56.
The Dow Jones Industrial Average climbed 0.2% at 21,441.85.
The NASDAQ fell 0.1% to 6,261.82.
The yield on a 10-year Treasury bond fell 0.8% to 2.13%.
The price of gold declined 0.8% to $1,246.
Consumer Portfolio Services Inc. of Irvine rose 9.3% to $4.84 and a $112 million market cap. Volume of 105,000 at the car loan servicer was twice the daily average.
Irvine-based ChromaDex Corp. (NASDAQ: CDXC) increased 8.9% to $3.93 and a $182 million market cap. Shares of the maker of ingredients for uses that include anti-aging products have climbed 75% since a 52-week low of $2.25 in April.