Quantum Computing Stocks
Advanced computational hardware and software developers focus on harnessing subatomic mechanics to solve complex optimization and simulation problems beyond the capacity of classical binary systems. Revenue models shift from government-funded research and development contracts toward commercial quantum-as-a-service (QaaS) subscriptions as the industry moves toward fault-tolerant systems.
As of Oct 23, 2026, Quantum Computing has 24 US-listed companies worth $40.7B combined. The median member moved -2.2% over the past week; HQ led at +18.0% and QNME trailed at -21.4%.
Companies in Quantum Computing
- IONQ – IONQ Inc, $12.6B
- QNT – Quantinuum Inc. Class A Common Stock, $9.5B
- QBTS – D-Wave Quantum Inc. Common Stock, $4.4B
- RGTI – Rigetti Computing Inc, $3.8B
- INFQ – Infleqtion, Inc., $2.1B
- IQMX – IQM Quantum Computers Oyj American Depositary Shares, $1.7B
- QUBT – Quantum Computing Inc, $1.4B
- PSQL – Pasqal Holding SA Ordinary Share, $1.3B
- XNDU – Xanadu Quantum Technologies Limited Class B Subordinate Voting Shares, $868M
- HQ – Horizon Quantum Holdings Ltd. Class A Ordinary Shares, $852M
- LAES – SEALSQ Corp, $526M
- BTQ – BTQ Technologies Corp. Common Stock, $338M
- QNC – Quantum eMotion Corp., $281M
- ARQQ – Arqit Quantum Inc., $244M
- ZENA – ZenaTech Inc., $219M
- ZPTA – Zapata Computing Holdings Inc. Common Stock, $108M
- QXL – Quantum X Labs Inc., $95.1M
- QUCY – Quantum Cyber N.V., $93.3M
- QTEX – QTREX Quantum Ltd., $83.6M
- HOLO – MicroCloud Hologram Inc., $33.2M
- MLGO – MicroAlgo Inc., $30M
- QNME – Quanome Technologies, Inc., $16.3M
- QCLS – Q/C Technologies, Inc., $4.1M
- EZRA – Reliance Global Group, Inc., $2.2M