Quantinuum Inc., a quantum computing company backed by Honeywell International Inc., reversed a 19% gain to close just above its debut price after raising $1.68 billion in an upsized US initial public offering.
Quantinuum Inc. signage during the company’s initial public offering (IPO) at the Nasdaq MarketSite in New York, US, on Thursday, June 4, 2026. Quantinuum Inc., a quantum computing company backed by Honeywell International Inc., raised $1.68 billion in its upsized US initial public offering, demonstrating growing investor enthusiasm for the emerging technology.
Honeywell International Inc.-backed quantum computing company Quantinuum Inc. is considering increasing the size of its initial public offering, according to a person familiar with the matter.
Honeywell International Inc Photographer: Jacob Kepler/Bloomberg
Login
