Best Quantum Computing Stocks
Quantum-computing stocks in the covered universe — US-listed companies whose enriched business profile is tagged with quantum computing, sensing, or post-quantum security, ranked by market capitalization. Every figure is delayed data from SEC EDGAR + Finnhub, shown with its as-of date.
- Alphabet Inc. (Class C) (GOOG) Communication Services — Alphabet operates the world's largest digital advertising platform and search engine, complemented by cloud infrastructure, AI services, and experimental technology ventures. ask →
- Hewlett Packard Enterprise (HPE) Information Technology — Enterprise infrastructure and hybrid cloud computing platform provider integrating servers, storage, networking, and edge-to-cloud solutions, boosted by the strategic acquisition of Juniper Networks. ask →
- Lattice Semiconductor (LSCC) Information Technology — Low-power FPGA and programmable logic leader powering edge AI, data centers, and communications infrastructure from the network edge to the cloud. ask →
- IonQ, Inc. (IONQ) Information Technology — IonQ is the world's first quantum platform company delivering quantum computing, networking, sensing, and security solutions via cloud and on-premises systems. ask →
- D WAVE QUANTUM INC (QBTS) Information Technology — D-Wave is the world's first and only dual-platform quantum computing company delivering both annealing and gate-model quantum systems to solve complex computational problems beyond classical computing. ask →
- RIGETTI COMPUTING INC (RGTI) Information Technology — Rigetti builds superconducting quantum computers and cloud services to tackle computational challenges beyond classical computing's reach. ask →
- INFLEQTION INC (INFQ) Information Technology — Infleqtion builds neutral atom quantum computers designed to achieve quantum advantage for government and enterprise customers. ask →
- QUANTUM COMPUTING INC (QUBT) Information Technology — Quantum Computing Inc builds photonics-based quantum computers operating at room temperature to solve large-scale optimization problems faster than classical systems. ask →
- FREQUENCY ELECTRONICS INC (FEIM) Information Technology ask →
- ASP ISOTOPES INC (ASPI) Materials — An advanced materials company commercializing proprietary isotope enrichment technologies for nuclear medicine, semiconductors, and small modular reactors, combined with LNG and helium production through its Renergen subsidiary. ask →
- AmpliTech Group, Inc. (AMPG) Information Technology — AmpliTech designs and manufactures RF amplifiers, microwave components, and MMICs for satellite, defense, 5G, and quantum computing markets with proprietary low-noise amplifier technology and rapid scaling ambitions. ask →
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Frequently asked
What are the largest quantum computing stocks?
By market capitalization, the largest quantum computing stocks in the catalog include Alphabet Inc. (Class C) (GOOG), Hewlett Packard Enterprise (HPE), Lattice Semiconductor (LSCC), IonQ, Inc. (IONQ), D WAVE QUANTUM INC (QBTS).
How many quantum computing stocks does stocks-llm track?
stocks-llm currently lists 11 quantum computing stocks (as of 2026-07-22), each with dated fundamentals from SEC EDGAR and Finnhub. Informational only — not financial advice.
Data: SEC EDGAR (filings) + Finnhub (fundamentals, delayed daily-close). Figures shown with their as-of date.
Last updated 2026-07-22.
Informational only — NOT financial advice. All figures are delayed daily-close data from SEC EDGAR & Finnhub, shown with their as-of date.