Lucas Jackson/Reuters
James Park, Fitbit CEO, applauds with co-founder and CTO Erid Friedman while ringing the opening bell.
Shares climbed to as high as $33.25 in trading, after opening up 52% on Thursday.
The maker of fitness trackers pegged its IPO price at $20 per share. It initially had a range of $14 - $16, but raised the range to $17 - $19, as well as the number of shares outstanding, after investors showed strong demand.
At a stock price of $33 per share, Fitbit is valued at nearly $7 billion.
The stock is now up more than 60% from the IPO price.
Here's a chart showing the last two days of trading, and today's continued rally:
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