Shares of Gemini Space Station soared more than 40% on Thursday after the exchange operator raised $425 million in an initial public offering.

The stock opened at $37.01 on the Nasdaq after its IPO priced at $28. At one point, shares traded as high as $40.71.

The New York-based company priced its IPO late Thursday above this week’s expected range of $24 to $26, and an initial range of between $17 and $19. That valued the company at some $3.3 billion before trading began.

Gemini, which primarily operates as a cryptocurrency exchange, was founded by the Winklevoss brothers in 2014 and held more than $21 billion of assets on its platform as of the end of July. Per its registration with the Securities and Exchange Commission, Gemini posted a net loss of $159 million in 2024, and in the first half of this year, it lost $283 million.

The company also offers a U.S. dollar-backed stablecoin, credit cards with a crypto-back rewards program and a custody service for institutions.

The Winklevoss brothers were among the earliest bitcoin investors and first bitcoin billionaires. They have long held that bitcoin is a superior store of value than gold. On Friday morning, they told CNBC’s “Squawk Box” they see its price reaching $1 million a decade from now.

In 2013, they were the first to apply to launch a bitcoin exchange-traded fund, more than 10 years before the first bitcoin ETFs would eventually be approved. The Securities and Exchange Commission’s rejection of the application, which cited risk of fraud and market manipulation, set the stage for the bitcoin ETF debate in the years to come.

Even in the early days, when bitcoin was notorious for its extreme volatility and anti-establishment roots and shunned by Wall Street, the Winklevoss brothers were outspoken about the need for smart regulation that would establish rules for the crypto-led financial revolution.

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