A Finnish startup has just crossed a milestone that no European quantum computing company had reached before: a listing on a major U.S. stock exchange.

IQM Quantum Computers, based in Espoo, Finland, is now the first European quantum computing firm to trade on Nasdaq, according to the Hastings Tribune and MLQ.ai. MLQ.ai reports the company debuted at a valuation of $1.9 billion.

The company did not reach the market through a traditional initial public offering. According to Bloomberg, IQM went public in New York through a merger with a blank-check firm — a structure commonly known as a SPAC, or special purpose acquisition company. As part of the deal, IQM secured €127 million in PIPE financing (private investment in public equity), according to EU-Startups.

The opening did not go entirely smoothly. Bloomberg reports that IQM shares slipped on their first day of trading, a reminder that investor enthusiasm for quantum computing still comes with caution.

Why does this matter? Quantum computing is one of the most closely watched frontier technologies, promising machines that could eventually solve problems far beyond the reach of today's fastest computers. Much of the money and attention in the field has flowed to U.S. players, so a European company reaching a marquee American exchange signals that the region's quantum ambitions are maturing and competing for global capital. IQM's first-day dip, meanwhile, underscores that turning that promise into steady returns remains an open question for the whole industry.