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The S&P 500 increased 0.2% in midday trading to 2,583.59.
The Dow Jones Industrial Average rose 0.4% to 23,445.89.
The Nasdaq rose 0.1% to 6,790.62.
The yield on a 10-year Treasury bond increased 0.7% to 2.37%.
The price of gold fell 1.6% to $1,275.
Irvine-based Alteryx Inc. (NYSE: AYX) rose 6.8% to $27.42 and a $1.62 billion market cap. The shares have climbed 25% since Nov. 9 when the maker of data analytics software reported third-quarter revenue jumped 52% to $34.2 million.
San Clemente-based Glaukos Corp. (NYSE: GKOS) increased 5.8% to $27.97 and a $967 million market cap on volume almost twice its daily average. The company, a maker of products to treat glaucoma, last week hit a 52-week low and is still down 34% since September.