The S&P 500 rose about 0.5% to 2,902.59.
The Dow Jones was up 0.5% to 26,123.79
The Nasdaq jumped 0.8% to 8,015.04.
The yield on a 10-year Treasury bond was 0.2% lower to 2.96%.
The price of gold was down 0.2% to $1,208.
ICU Medical Inc. (Nasdaq: ICUI) shares dropped 5.6% to $285.35 each and a $5.8 billion market cap. British engineering firm Smiths Group Plc earlier today said talks with the San Clemente-based infusion therapy product maker over a possible $9 billion merger had fallen through.
Shares of Irvine-based fast-casual burger joint Habit Restaurants Inc. (Nasdaq: HABT) declined 4% to $15.75 each for a $410 million market cap. The shares are still up 95% since their 52-week low in February.