Quantum Computing Firms Complete Multiple Stock Listings in 2026

Three quantum computing companies completed public stock listings in the first quarter of 2026. Infleqtion joined the New York Stock Exchange in mid-February through a special purpose acquisition company. Xanadu began trading on Nasdaq and the Toronto Stock Exchange in March as a photonic quantum computing firm.

Horizon Quantum, based in Singapore, started trading on Nasdaq in March as the first public quantum software company. Quantum computing relies on the physics of atoms and subatomic particles. Qubits can exist in multiple states simultaneously, allowing quantum computers to evaluate many possibilities at once rather than testing paths sequentially like classical computers.

A quantum computer with 300 qubits could have more possible configurations than the number of particles in the known universe. China has developed a dual-core quantum computer described as the world's first of its kind.

The listings took place while governments and industry continue to anticipate milestones in quantum technology. South China Morning Post reported that investor interest is increasing as the technology remains in early stages of commercial development.