The S&P 500 rose 0.7% in midday trading to 2925.71.
The Dow Jones was up 0.6% to 26,547.37.
The Nasdaq jumped 0.95% to 8,066.45.
The yield on a 10-year Treasury bond was 0.3% lower to 3.07%.
The price of gold was down 0.9% to $1,188.
Alteryx Inc. (NYSE: AYX) was down 3.5% to $58.52 and a $3.6 billion market cap. The Irvine-based software company develops products used for data science and analytics.
Urovant Sciences Ltd. (Nasdaq: UROV) plunged 23% to $10.75 and a $338 million market cap. The Irvine-based biopharmaceutical company went public today, selling 10 million shares priced at $14.
It’s a clinical-stage subsidiary of Basel, Switzerland-based Roivant Sciences Ltd. that’s developing therapies for urologic conditions.