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Quantum stocks face a pivotal Q3 finish as IonQ, D-Wave and Rigetti push commercialization while rates and valuation concerns weigh on shares.

IonQ just pulled off a quantum computing first that the entire industry has been chasing for years, yet its stock remains deep in the red and its losses dwarf its revenue. Something does not add up, and the explanation cuts to the heart of how markets price revolutionary science against brutal financial reality.

IonQ just claimed a genuine quantum computing breakthrough, but its stock tells a bleaker story and its financials tell a bleaker one still. Before you chase the headline, there is a quieter position in the quantum ecosystem worth understanding.

Key TakeawaysRigetti Computing stock has fallen 49% over the past year, sliding from an intraday peak near $77 in early November 2025 to $16. 01 as of September 23.

Rigetti Computing, Inc. (RGTI) closed at $16.01 in the latest trading session, marking a -3.12% move from the prior day.

IonQ just proved that fixing quantum errors does not require massive supercomputers. By running real-time correction for 408 logical qubits on a single CPU, it cleared a massive scaling roadblock.

IonQ’s Superion 256 quantum computer will be the first system installed at Nvidia’s quantum research center, say the partners.

D-Wave Quantum (QBTS) trades near $17.50, about 61% below the high it set inside the past year. Nothing in the market broke to do that. The S&P 500 returned close to 18% over the same twelve months. The stock has already fallen a shock-sized amount without a shock, which is what makes the next leg hard to size.

Rigetti Computing has seen its share price move around sharply in recent years, which naturally puts a spotlight on whether the current US$16.52 level lines up with the book value on its balance sheet. With that kind of volatility in the rear-view mirror, the question now is how much of the recent share price story is actually supported by the company’s net assets per share. Over the past 3 years the stock has delivered a very large gain of roughly 11x. That raises the question of how that...

Rigetti has the cash, technology, and government backing to pursue quantum computing. But its huge ambitions still far outpace its current revenue and commercial progress.

A policy shift could finally move quantum beyond research

Rigetti is tackling a coherence-time bottleneck in its 108-qubit Cepheus system to improve gate fidelity and quantum reliability.

Quantum computing stocks are struggling with a major industry conference on tap as investors eye roadmap to commercialization.

The people who know Wall Street’s hottest quantum computing stocks best are sending all the wrong signals.

Rigetti Computing has been very volatile over the past few years.

The U.S. Energy Department launches Quantum Genesis Q, a competition to build an error-corrected, ‘scientifically relevant’ quantum computer.

It could take decades to develop quantum computers that are useful in the real world.

Oak Ridge, IonQ, and NVIDIA used generative AI to cut quantum circuit compilation from 11 minutes to 28 seconds, a milestone with implications for IONQ and NVDA investors.

Anderon is already running its first quantum wafers at a 300-millimeter New York foundry

IonQ (IONQ) stock trades at about $37, roughly 55% below its high inside the last year. The market did not do that: over the past twelve months the S&P 500 returned 16.6% while IonQ lost 33.4%. Its own numbers went the other way, which makes the downside hard to size.

International Business Machines finalizes a Commerce Department award to build Anderon, the first stand-alone quantum chip foundry in the U.S.

IonQ and Rigetti Computing are pursuing quite different technologies in their efforts to build commercially viable quantum computers.

In the latest trading session, Rigetti Computing, Inc. (RGTI) closed at $15.09, marking a -1.18% move from the previous day.

The Commerce Department awarded $100 million CHIPS Act grants each to D-Wave Quantum, Rigetti Computing, and Quantinuum, while IonQ was notably excluded from this funding round.

Rigetti Computing (RGTI) has received quite a bit of attention from Zacks.com users lately. Therefore, it is wise to be aware of the facts that can impact the stock's prospects.

RGTI's revenues surge on Novera sales, but customer concentration, contract timing and rising R&D costs keep results volatile.

D-Wave and Rigetti just landed major government backing as investors look for the next winners in quantum computing.

IonQ and Rigetti Computing both reported optimistic results during the second quarter.

Alphabet, Amazon and IBM offer diversified AI and quantum exposure as hyperscalers ramp infrastructure spending and quantum technology advances.

A single order expected to become revenue in the fourth quarter is worth more than everything the quantum computing specialist sold last year.