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IONQ vs RGTI: Which Quantum Stock Is Better?

IonQ (Trapped-Ion) vs Rigetti Computing (Superconducting) — live market, SEC financial and quantum-hardware data side by side.

Direct verdict: IONQ vs RGTI

IONQ leads this data snapshot on 3 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.

IONQ is the larger company at $15.65B market cap, about 2.9× the size of RGTI ($5.46B).

IONQ reports more revenue ($130.02M vs $7.09M for RGTI, latest fiscal year).

On cash runway — the metric that decides who needs to raise money first — RGTI is stronger (78mo vs 56mo).

They take different technical paths: IONQ reports 36 qubits (Physical Qubits (Trapped-Ion, All-to-All Connectivity)), while RGTI reports 107 qubits (Physical Qubits (Superconducting, Modular Chiplet)) — raw counts are not directly comparable across modalities.

IONQ vs RGTI Performance (% return, all start at 0%)
2/263/274/285/276/267/28-35%+0%+35%+70%+105%
IONQ+9.7%RGTI-3.9%
MetricIONQIonQRGTIRigetti Computing
Market
Price$41.06$16.37
Market Cap$15.65B$5.46B
1Y Return+6.2%+13.1%
52W High$84.64$58.15
52W Low$25.89$12.53
Financials
Revenue (latest FY)$130.02M$7.09M
Revenue YoY+201.9%-34.3%
Net Income-$510.38M-$216.21M
Cash & Equivalents$2.13B$393.71M
Cash Runway56mo78mo
Risk
Going Concern FlagNoNo
ATM Offerings (dilution)1866
Daily Short Vol %46.9%61.9%
Beta (1Y vs SPY)1.191.24
Government & Research
Federal Awards Total$13.41M$12.10M
Academic Citations40K44K
Patents
Quantum Technology
Physical Qubits36107
Qubit ModalityPhysical Qubits (Trapped-Ion, All-to-All Connectivity)Physical Qubits (Superconducting, Modular Chiplet)
2Q Gate Fidelity99.6%99.1%
Cloud PlatformsAWS Braket, Azure Quantum, Google Cloud, IonQ Quantum CloudAWS Braket, QCS (Direct API), Azure Quantum, qBraid
Roadmap Target#AQ 64 achieved Sept 2025 (Tempo); 256-qubit chip-based system shipments 2026; 800 logical qubits by 2027; fault-tolerant at scale 2028–2030Lyra (336 qubits, late 2026 narrow advantage target); 1,000+ qubits by end of 2027; utility-scale ~2027–2029
Company
Founded20152013
HeadquartersCollege Park, MDBerkeley, CA
Employees1K162
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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IONQ vs RGTI FAQ

Is IONQ or RGTI the bigger company?

IONQ is larger, with a market cap of $15.65B versus $5.46B for RGTI.

Which has the longer cash runway, IONQ or RGTI?

IONQ's cash runway is 56mo and RGTI's is 78mo (current cash ÷ trailing-twelve-month operating burn; "CF+" means cash-flow positive).

What technology do IONQ and RGTI use?

IonQ (IONQ): Physical Qubits (Trapped-Ion, All-to-All Connectivity). Rigetti Computing (RGTI): Physical Qubits (Superconducting, Modular Chiplet). Qubit counts are not directly comparable across different modalities.

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