The S&P 500 was up 0.1% in midday trading to 2,683.73.
The Dow Jones Industrial Average rose 0.1% to 24,774.51.
The Nasdaq ticked up 0.1% to 6,967.17.
The yield on a 10-year Treasury bond was 0.9% higher at 2.48%
The price of gold climbed 0.5% to $1,270.
Alteryx Inc. (NYSAE: AYX) was down 7% to $24.81 and a $1.5 billion market cap on three times average volume. It makes data analytics software.
Presbia PLC (Nasdaq: LENS) was down 14% to $4.01 and a $69 million market cap. The eye care device maker and developer replaced its chief executive, cut expenses, and received a proposal by an affiliate of its largest shareholder to buy $5 million in preferred shares.