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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.

Direct verdict: RGTI vs ARQQ

RGTI leads this data snapshot on 4 of the five headline market, financial, runway, return and dilution measures with comparable data. The better investment still depends on valuation, technology execution and risk tolerance.

RGTI is the larger company at $5.46B market cap, about 16× the size of ARQQ ($333.77M).

RGTI reports more revenue ($7.09M vs $530.00K for ARQQ, latest fiscal year).

On cash runway — the metric that decides who needs to raise money first — RGTI is stronger (78mo vs 8mo).

RGTI vs ARQQ Performance (% return, all start at 0%)
2/263/274/285/276/267/28-35%+0%+35%+70%+105%
ARQQ+21.1%RGTI-3.9%
MetricRGTIRigetti ComputingARQQArqit Quantum
Market
Price$16.37$20.13
Market Cap$5.46B$333.77M
1Y Return+13.1%-34.7%
52W High$58.15$62.00
52W Low$12.53$11.52
Financials
Revenue (latest FY)$7.09M$530.00K
Revenue YoY-34.3%+80.9%
Net Income-$216.21M-$35.34M
Cash & Equivalents$393.71M$28.86M
Cash Runway78mo8mo
Risk
Going Concern FlagNoNo
ATM Offerings (dilution)6626
Daily Short Vol %61.9%66.6%
Beta (1Y vs SPY)1.241.62
Government & Research
Federal Awards Total$12.10M—
Academic Citations44K—
Patents——
Quantum Technology
Physical Qubits107—
Qubit ModalityPhysical Qubits (Superconducting, Modular Chiplet)—
2Q Gate Fidelity99.1%—
Cloud PlatformsAWS Braket, QCS (Direct API), Azure Quantum, qBraidSKA-Platform (SaaS), SKA-PI (Private Instance)
Roadmap TargetLyra (336 qubits, late 2026 narrow advantage target); 1,000+ qubits by end of 2027; utility-scale ~2027–2029Global enterprise and telco rollout via SKA-CC for MSPs and sovereign private deployments
Company
Founded20132017
HeadquartersBerkeley, CALondon, UK
Employees16287
Company DNA0–100 rank vs all tracked stocks · missing data = 0
MomentumScaleRevenueRunwayGov $Research

Momentum = 1Y return · Scale = market cap · Runway capped at 36mo · Gov $ = federal awards · Research = citations + patents. Dollar axes use log scale.

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RGTI vs ARQQ FAQ

Is RGTI or ARQQ the bigger company?

RGTI is larger, with a market cap of $5.46B versus $333.77M for ARQQ.

Which has the longer cash runway, RGTI or ARQQ?

RGTI's cash runway is 78mo and ARQQ's is 8mo (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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