RGTI vs ARQQ: Which Quantum Stock Is Better?
Rigetti Computing (Superconducting) vs Arqit Quantum (Quantum Security) — live market, SEC financial and quantum-hardware data side by side.
RGTI is the larger company at $6.21B market cap, about 12× the size of ARQQ ($505.24M).
RGTI reports more revenue ($7.09M vs $530.0K for ARQQ, latest fiscal year).
On cash runway — the metric that decides who needs to raise money first — RGTI is stronger (82mo vs 15mo).
| Metric | RGTIRigetti Computing | ARQQArqit Quantum |
|---|
| Market |
| Price | $18.68 | $29.72 |
| Market Cap | $6.21B | $505.24M |
| 1Y Return | +64.9% | -14.3% |
| 52W High | $58.15 | $62.00 |
| 52W Low | $11.23 | $11.52 |
| Financials |
| Revenue (latest FY) | $7.09M | $530.0K |
| Revenue YoY | -34.3% | +80.9% |
| Net Income | $-216,210,000 | $-35,343,000 |
| Cash & Equivalents | $418.25M | $36.98M |
| Cash Runway | 82mo | 15mo |
| Risk |
| Going Concern Flag | No | No |
| ATM Offerings (dilution) | 66 | 26 |
| Daily Short Vol % | 58.7% | 65.3% |
| Beta (1Y vs SPY) | 0.89 | 1.34 |
| Government & Research |
| Federal Awards Total | $8.87M | $0 |
| Academic Citations | 43K | — |
| Patents | — | — |
| Quantum Technology |
| Physical Qubits | 108 | — |
| Qubit Modality | Physical Qubits (Superconducting, Modular Chiplet) | — |
| 2Q Gate Fidelity | 99.1% | — |
| Cloud Platforms | AWS Braket, QCS (Direct API), Azure Quantum (planned) | SKA-Platform (SaaS), SKA-PI (Private Instance) |
| Roadmap Target | Lyra (336 qubits, late 2026 narrow advantage target); 1,000+ qubits by end of 2027; utility-scale ~2027–2029 | Global enterprise and telco rollout via SKA-CC for MSPs and sovereign private deployments |
| Company |
| Founded | 2013 | 2017 |
| Headquarters | Berkeley, CA | London, UK |
| Employees | — | — |
RGTI vs ARQQ FAQ
Is RGTI or ARQQ the bigger company?
RGTI is larger, with a market cap of $6.21B versus $505.24M for ARQQ.
Which has the longer cash runway, RGTI or ARQQ?
RGTI's cash runway is 82mo and ARQQ's is 15mo (current cash ÷ trailing-twelve-month operating burn; "CF+" means cash-flow positive).
What technology do RGTI and ARQQ use?
Rigetti Computing (RGTI): Physical Qubits (Superconducting, Modular Chiplet). Arqit Quantum (ARQQ): Quantum Security. Qubit counts are not directly comparable across different modalities.
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