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IonQ vs Rigetti vs D-Wave: Comparing the Quantum Pure Plays IONQ, RGTI and QBTS in 2026
In the ionq vs rigetti vs d-wave comparison, IonQ leads clearly on revenue, cash and scale, while Rigetti and D-Wave are smaller bets on different technologies. IonQ booked $80.1 million in Q2 2026 revenue, nearly ten times Rigetti and D-Wave combined.
All three are pure-play quantum computing stocks listed in the U.S., none is profitable yet, and all three trade at more than 30 times trailing 12-month sales. Here is how they compare, based on company filings and data tracked by Clear Report.
IonQ vs Rigetti vs D-Wave: Key Numbers
| Metric | IonQ (IONQ) | Rigetti Computing (RGTI) | D-Wave Quantum (QBTS) |
|---|---|---|---|
| Technology | Trapped ions | Superconducting qubits | Quantum annealing + gate model |
| Market cap (Oct 22, 2026) | $12.30B | $4.02B | $4.50B |
| Q2 2026 revenue | $80.1M | $5.1M | $3.1M |
| Revenue growth (YoY) | +287% | ~+185% | Flat |
| Cash (June 30, 2026) | ~$2.0B pro forma | $541M | $546M |
| 1-year stock return | −41.8% | −66.6% | −55.7% |
| 5-year net insider selling | $577M | $83M | $331M |
Three Types of Quantum Computers
The biggest difference between these quantum computing companies is how each one builds a qubit.
- IonQ traps charged atoms (ions) and controls them with lasers. Trapped ions have long coherence times and very high accuracy; IonQ's two-qubit gate fidelity reached 99.99% in 2025.
- Rigetti builds superconducting quantum chips that must run near absolute zero. They are fast, and the approach is also used by Google and IBM.
- D-Wave sells quantum annealers, machines built for optimization rather than general tasks. D-Wave's Advantage2 system has about 4,500 qubits, and the company is now adding gate-model systems after buying Quantum Circuits.
Each approach solves complex problems differently, and no type of quantum computer has yet beaten classical computers on broad commercial work.
IonQ: The Revenue and Cash Leader
IonQ raised its 2026 revenue guidance to $280–290 million, which would still leave it well short of $1 billion in revenue. It closed the purchase of SkyWater Technology in July 2026, giving it its own chip production. Customers range from businesses to government and research labs.
One warning sign for anyone who wants to invest in IonQ is insider selling: insiders sold about $577 million more stock than they bought over five years.
Rigetti Computing: Lean, With Government Backing
Rigetti Computing carries no debt and about $541 million in cash. Its Cepheus-1-108Q system runs at about 99.1% median two-qubit fidelity, and the roadmap targets about 1,000 qubits within roughly three years.
A letter of intent with the U.S. Department of Commerce covers up to $100 million in CHIPS Act funding. Still, Rigetti stocks fell the most of the three over the past year.
D-Wave Quantum: Real Use Cases Today
D-Wave's revenue was flat in Q2 2026, but first-half bookings rose 1,120% to $35.5 million, including a $20 million system sale. Its quantum annealer already handles optimization tasks such as scheduling and financial modeling for commercial customers.
D-Wave plans a 181-qubit gate-model system in 2028 and 100 logical qubits by 2032.
The Quantum Computing Market Opportunity
Boston Consulting Group estimates $450–850 billion in global economic value by 2040, with $90–170 billion for hardware and software vendors. Those addressable opportunities are sizable, but they sit years away. Today, all three companies together earn less than $90 million a quarter.
That gap between hype and revenue is why Wall Street treats quantum as one of the next-big-thing trends. A weak quarter or a rate shock could act as a bubble-bursting event for the whole group.
Which Quantum Computing Stock Fits You
- IonQ suits investors who want the most established quantum computing stock with real revenue.
- Rigetti suits those betting on superconducting quantum chips and government support.
- D-Wave suits investors who value near-term optimization use cases over pure gate-model progress.
ETFs such as the Defiance Quantum ETF or the WisdomTree Quantum Computing Fund spread the risk across many quantum industry names.
Compare IONQ, RGTI and QBTS With Clear Report
On Clear Report, each of these tickers has its own page with an AI Rating from 0 to 100, analyst rating changes, AI summaries of every earnings call and insider and fund trades. Our full guide to quantum computing stocks adds large-cap and ETF options. That makes a side-by-side check quick. For a fourth quantum name, read our qubt stock analysis or open the tickers on the free plan.
This comparison is educational and not investment advice.
FAQ: IonQ vs Rigetti vs D-Wave
Which is better, IonQ or Rigetti?
On revenue, cash and analyst coverage, IonQ is ahead. Rigetti is cheaper in market cap but earns far less.
Is D-Wave a real quantum computer?
Its annealers use quantum mechanics for optimization; its new gate-model systems target general quantum computing.
Which quantum stock has the most cash?
IonQ, with about $2 billion pro forma after the SkyWater deal.
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