TLDR
- HQ stock edges up as Horizon Quantum plans Dublin quantum testbed
- Horizon Quantum selects Dublin for IonQ 256-qubit system rollout
- HQ holds near $10 as IonQ system plan boosts quantum roadmap
- Dublin gains major quantum testbed as Horizon Quantum expands
- Horizon Quantum adds trapped-ion system to support software tools
Horizon Quantum Holdings Ltd. (HQ) shares advanced slightly on Thursday as the company outlined a major quantum expansion in Ireland. HQ traded at $10.02, up 0.10%, after an early move above $10.50 faded. The stock later stabilized near $10.00 as the market assessed the Dublin quantum system plan.
Horizon Quantum Holdings Ltd. Class A Ordinary Shares, HQ
Horizon Quantum Plans Dublin Quantum Computer
Horizon Quantum said it expects to place its second quantum computer at its European headquarters in Dublin. The company plans to use IonQ’s next-generation 256-qubit trapped-ion technology for the system. Therefore, the project would add a major quantum testbed to Ireland’s growing technology base.
The company said Dublin offers access to universities, engineers, researchers, and Europe’s wider deep-tech market. Moreover, Ireland has expanded its focus on quantum technologies through public research and industry development. Horizon Quantum expects the installation to support local collaboration across academia, industry, and suppliers.
The planned system marks Horizon Quantum’s second major hardware testbed after its Singapore deployment. In December 2025, the company announced its first integrated quantum system at its Singapore headquarters. That system used a multi-vendor superconducting setup, while the Dublin system will use trapped-ion technology.
IonQ System Expands Hardware Testbed
IonQ’s sixth-generation 256-qubit trapped-ion system will support Horizon Quantum’s software infrastructure strategy. The company expects the system to offer high qubit count and strong gate performance. As a result, it could support work on difficult computing tasks and advanced quantum applications.
Horizon Quantum plans to connect the IonQ system with Triple Alpha, its integrated development environment. It also plans to improve real-time runtime features in its execution stack. Therefore, the Dublin system will help the company support more hardware types through its software tools.
The company has built its strategy around hardware-agnostic quantum software development. This approach allows developers to build tools across different quantum systems and architectures. Consequently, the Dublin project strengthens its effort to support superconducting and trapped-ion platforms.
Ireland Gains Quantum Technology Milestone
Irish officials framed the project as a boost for the country’s advanced technology ambitions. Enterprise Minister Peter Burke welcomed the planned Dublin testbed and linked it to Ireland’s quantum ecosystem. He also said the project supports innovation, collaboration, and economic growth.
IDA Ireland CEO Michael Lohan also backed the announcement and highlighted quantum development as a strategic priority. He said Horizon Quantum’s decision strengthens Ireland’s role in frontier technologies. In addition, he pointed to Ireland’s research base and talent pool as key factors.
Horizon Quantum CEO and founder Dr. Joe Fitzsimons said the expansion advances the company’s broader mission. He said the Dublin testbed adds trapped-ion capability to the company’s hardware base. Meanwhile, HQ stock held a narrow gain after the early rally reversed.


