NEW YORK (TheStreet) -- Fitbit (FIT), which makes fitness wearable devices including the Fitbit Surge smartwatch, saw its shares first trade at $30.40 on Thursday morning, good for a 52% gain. At that price, the company is valued at $6.2 billion, already making it one of the most valuable consumer technology companies in the world.

San Francisco-based Fitbit is one of the more financially sound technology companies to go public recently. In 2014, the company ended the year with $745.4 million in revenue, generating net income of $131.8 million with adjusted EBITDA of $191 million. That's a significant improvement over 2013, when it earned $79 million on $271.1 million in revenue.

In total, the company has seven devices -- Fitbit Zip, Fitbit One, Fitbit Flex, Fitbit Charge, Fitbit Charge HR, Fitbit Surge and Fitbit Aria, a "Wi-Fi connected scale that tracks weight, body fat percentage, and BMI."

Here are five incredible pictures from Fitbit's initial public offering from inside the New York Stock Exchange.

Fitbit has Wall Street in full gear today! There are tons of people out by the Exchange in Fitbit T-shirts and Fitbit wearables. If you're down there, you can't miss them.

Here's an ad campaign that Fitbit has been running, where it attaches the word "fit" to everything. Have you found your fit yet?

Here's Fitbit's stock symbol. Appropriately enough, it's FIT. Traders are huddling around waiting for the trading to start.

Here's Fitbit CEO James Park on CNBC with TheStreet's Jim Cramer. TheStreet interviewed Park at CES in January, where he called Fitbit "the pioneers in activity trackers."

Here's a look at some of Fitbit's products. In all, Fitbit sells seven products -- Fitbit Zip, Fitbit One, Fitbit Flex, Fitbit Charge, Fitbit Charge HR, Fitbit Surge and Fitbit Aria.

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