IONQ vs ARQQ: Which Quantum Stock Is Better?
IonQ (Trapped-Ion) vs Arqit Quantum (Quantum Security) — live market, SEC financial and quantum-hardware data side by side.
IONQ is the larger company at $19.18B market cap, about 38× the size of ARQQ ($505.24M).
IONQ reports more revenue ($130.02M vs $530.0K for ARQQ, latest fiscal year).
On cash runway — the metric that decides who needs to raise money first — IONQ is stronger (61mo vs 15mo).
| Metric | IONQIonQ | ARQQArqit Quantum |
|---|
| Market |
| Price | $51.40 | $29.72 |
| Market Cap | $19.18B | $505.24M |
| 1Y Return | +28.2% | -14.3% |
| 52W High | $84.64 | $62.00 |
| 52W Low | $25.89 | $11.52 |
| Financials |
| Revenue (latest FY) | $130.02M | $530.0K |
| Revenue YoY | +201.9% | +80.9% |
| Net Income | $-510,378,000 | $-35,343,000 |
| Cash & Equivalents | $2.04B | $36.98M |
| Cash Runway | 61mo | 15mo |
| Risk |
| Going Concern Flag | No | No |
| ATM Offerings (dilution) | 18 | 26 |
| Daily Short Vol % | 49.8% | 65.3% |
| Beta (1Y vs SPY) | 0.89 | 1.34 |
| Government & Research |
| Federal Awards Total | $302.98M | $0 |
| Academic Citations | 38K | — |
| Patents | — | — |
| Quantum Technology |
| Physical Qubits | 100 | — |
| Qubit Modality | #AQ (Algorithmic Qubits) | — |
| 2Q Gate Fidelity | 99.6% | — |
| Cloud Platforms | AWS Braket, Azure Quantum, Google Cloud, IonQ Quantum Cloud | SKA-Platform (SaaS), SKA-PI (Private Instance) |
| Roadmap Target | #AQ 64 achieved Sept 2025 (Tempo); 256-qubit chip-based system shipments 2026; 800 logical qubits by 2027; fault-tolerant at scale 2028–2030 | Global enterprise and telco rollout via SKA-CC for MSPs and sovereign private deployments |
| Company |
| Founded | 2015 | 2017 |
| Headquarters | College Park, MD | London, UK |
| Employees | — | — |
IONQ vs ARQQ FAQ
Is IONQ or ARQQ the bigger company?
IONQ is larger, with a market cap of $19.18B versus $505.24M for ARQQ.
Which has the longer cash runway, IONQ or ARQQ?
IONQ's cash runway is 61mo and ARQQ's is 15mo (current cash ÷ trailing-twelve-month operating burn; "CF+" means cash-flow positive).
What technology do IONQ and ARQQ use?
IonQ (IONQ): #AQ (Algorithmic Qubits). Arqit Quantum (ARQQ): Quantum Security. Qubit counts are not directly comparable across different modalities.
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