The quantum computing firm Quantinuum announced on Monday an increase in the size of its upcoming initial public offering, raising the number of shares to be sold to 26.5 million and adjusting the price range to between $53 and $55 per share. This move could see the company raise up to $1.46 billion, reflecting robust investor interest in the quantum computing sector.

Previously, Quantinuum had planned to offer approximately 21 million shares within a price range of $45 to $50, targeting proceeds of around $1.05 billion. Following this upward revision, the company's market capitalization could reach approximately $14.3 billion at the top end of the new price range. If underwriters exercise their over-allotment option in full, the valuation could climb further to about $14.5 billion.

The company was formed in 2021 through the merger of Honeywell Quantum Solutions and Cambridge Quantum Computing. Honeywell currently holds approximately 49.1% of the voting rights. Quantinuum is set to list on the Nasdaq Global Market under the ticker symbol "QNT," with trading expected to commence on June 4.

Regulatory filings indicate that Quantinuum remains in a high-investment phase. For the fiscal year 2025, the company reported revenue of $30.9 million against a net loss of $192.6 million. In the first quarter of 2026, revenue was $5.2 million with a net loss of $136.6 million. Since its inception, cumulative losses total approximately $1.5 billion.

It is noteworthy that Quantinuum is included in a U.S. government support initiative for quantum computing. On May 21, the White House announced a total of $2 billion in grants for several quantum computing companies. Quantinuum is set to receive $100 million in this program, with the government receiving equity in return. Additionally, the company has signed a letter of intent with the Department of Commerce for up to $100 million under the CHIPS Act.

Quantinuum specializes in ion-trap quantum computing technology. Its "Helios" system, launched last November, features 98 fully connected physical qubits with single- and two-qubit gate fidelities of 99.9975% and 99.921%, respectively, which the company describes as "the world's most accurate universal commercial quantum computer."

J.P. Morgan, Morgan Stanley, and Goldman Sachs are acting as the lead underwriters for this IPO. Analysts at Wedbush noted that this listing will unlock previously implied asset value for Honeywell shareholders ahead of the planned spin-off of its aerospace business on June 29.