The Promising Quantum Computing IPO Wall Street Should Watch for in 2026

Key Points

• Growth investors are focusing on quantum computing stocks, particularly Quantinuum, as part of a broader AI strategy.

• Quantinuum, formed in 2021 via a merger of Honeywell Quantum Solutions and Cambridge Quantum Computing, boasts backers like Nvidia, Amgen, and JPMorgan.

• The company reported $30.9 million in revenue for 2025, but net losses widened to $192.6 million, highlighting the volatility and risks associated with investing in quantum computing.

Quantinuum’s IPO is set to challenge investor perceptions in the quantum computing sector, as discussions speculate a valuation of around $20 billion—double its previous funding round valuation of $10 billion from September 2025. This valuation suggests a price-to-sales ratio exceeding 600, emphasizing the speculative nature of this offering.

Despite posting $5.2 million in sales in Q1 2026—a 73% year-over-year decline—Quantinuum’s full-stack approach to quantum computing sets it apart from competitors. The company focuses on trapped-ion quantum computers and has increased its technological capabilities through proprietary software, positioning itself as a potential leader in a rapidly evolving market.