The marketed range was $53 to $55. Quantinuum priced at $60. That gap, the willingness of investors to pay above what the bankers asked, is the real news in the Honeywell-backed company’s initial public offering, which raised $1.68bn and set a valuation the entire quantum-computing sector will now be measured against.
The mechanics are straightforward. Quantinuum sold 28m shares, upsized from a planned 26.5m, at $60 each, according to a source cited by Reuters. The pricing values the company at about $15.6bn based on the share count in its filings. It begins trading on the Nasdaq on Thursday under the ticker QNT, with JPMorgan and Morgan Stanley leading the offering.
The final figure caps a steady climb in ambition. Earlier targets put the raise nearer an upsized $1.46bn at a roughly $14.3bn valuation, themselves an increase on the $12.7bn the company had reportedly settled on after the $20bn-plus filing circulated earlier. The $1.68bn priced at $60 supersedes those earlier marks; the read on the IPO has moved as the book has firmed, and the latest number is the one that counts.
What investors are buying is more promise than revenue. Quantinuum reported about $31m in 2025 revenue against a valuation now north of $15bn, a ratio that makes the listing a wager on what the company will build rather than on what it currently sells.
