Guardant Health soars almost 70% in first day of trading
Guardant Health shares popped almost 70 percent in their first day of trading on Thursday.
The Silicon Valley oncology company, backed by SoftBank, sold 12.5 million shares at $19 in its initial public offering. The stock was up more than 80 percent in mid-afternoon trading but later pared some of those gains, closing up 69.47 percent at $32.20 per share.