The S&P 500 rose 0.1% in midday trading to 2,641.82
The Dow Jones Industrial Average fell 0.2% to 24,236.10.
The Nasdaq increased 0.4% to 6,804.22.
The yield on a 10-year Treasury bond declined 0.4% to 2.37%.
The price of gold fell 1.3% to $1,263.
Irvine-based Alteryx Inc. (NYSE: AYX) increased 3.6% to $25.45 and a $1.51 billion market cap. Executives of the maker of data analytics software are scheduled to make a presentation today at the Raymond James 2017 Technology Investors Conference in New York.
Irvine-based Cryoport Inc. (Nasdaq: CYRX) rose 4.25% to $7.85 and a $201 million market cap. Shares of the life sciences shipping and packaging firm have climbed about 29% in the past month.