The Winklevoss twins, whose cryptocurrency company Gemini Space Station is going public, don’t expect bitcoin’s rally will stop anytime soon. In fact, they expect the cryptocurrency will reach $1 million over the next decade.

“It’s still very much the bottom of the first inning because we see bitcoin trading at $1 million a bitcoin, if it disrupts gold,” Gemini co-founder Tyler Winklevoss told CNBC’s “Squawk Box” on Friday. “And we think Bitcoin is gold 2.0.”

“We think there’s easily a 10x from here. It’s still really early. And I think we’ll be sitting here 10 years from now looking back and saying, ‘Wow, today was really early,’” Tyler continued. “I think few people actually listened back then, so hopefully more people listen today.”

Bitcoin has skyrocketed since the Winklevoss twins first launched Gemini in 2015, when the price of bitcoin was at $380. It was last trading above $115,100 per coin, a more than 30,000% increase over the past decade.

Bitcoin, year to date

The Winklevoss twins made their appearance ahead of Gemini’s initial public offering, which was priced at $28 per share late Thursday, according to Bloomberg. A person familiar with the offering told the news service that the company priced the offering above its expected range of $24 to $26, which would value the company at $3.3 billion.

“We’ve come a long way,” Gemini co-founder Tyler Winklevoss told CNBC’s “Squawk Box” on Friday.