And now back down.
GoPro shares were down more than 14% in morning trade, breaking a streak of four straight days of gains.
At one point during yesterday’s session, GoPro shares traded above $US48, more than double their IPO price of $US24.
GoPro’s debut comes amid a huge year for IPOs, and the wearable camera company has been one of the biggest market stories over the last few days.
Here’s a chart of GoPro shares as of 10:10 am EST.