RGTI, IONQ, QBTS, QUBT, XNDU Stocks Extend 4-Day Rally On Nvidia’s Quantum Push — Retail Cheers ‘The Fabulous Five’

Quantum stocks extended their rally on Wednesday over Nvidia’s recent launch of Ising, its open source quantum AI models, among other drivers.
Most smaller publicly traded quantum companies are now on track for a second straight year of gains.
Quantum stocks are soaring after Nvidia's Ising launch. (Representative image courtesy of Yuichiro Chino via Getty Images)
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Aashika Suresh·Stocktwits
Published Apr 15, 2026   |   12:44 PM EDT
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  • TD Cowen analyst Krish Sankar reportedly said in a note that he believes Nvidia’s new model would be a critical catalyst that would speed up commercialization of the quantum industry.
  • B. Riley Securities analyst Craig Ellis reportedly told MarketWatch that the Ising models could eventually become a big catalyst for quantum adoption over time.
  • Retail traders on Stocktwits cheered the surge in quantum stocks.

Quantum stocks extended their rally to a fourth consecutive day on Wednesday, riding the wave of optimism from Nvidia Corp.’s (NVDA) recent artificial intelligence-driven quantum push.

Shares of Rigetti Computing Inc. (RGTI), IonQ Inc. (IONQ), D-Wave Quantum Inc. (QBTS), Quantum Computing Inc. (QUBT), and Xanadu Quantum Technologies Ltd. (XNDU) posted double-digit gains, rising between 12% and 56%.

Nvidia on Tuesday launched a family of open-source quantum AI models, called Ising, to accelerate the development of quantum processors capable of running useful applications. CEO Jensen Huang also stressed that AI was essential for quantum computing to be practical.

Quantum Surge

RGTI stock surged more than 12% on Wednesday, driven by optimism from the Ising launch, as well as the commercial rollout of its 108-qubit quantum computing system, Cepheus-1-108Q.

Meanwhile, IONQ stock rallied more than 19%. The company also confirmed on Tuesday that it had been awarded a contract for the Defense Advanced Research Projects Agency’s (DARPA) HARQ initiative. It also said separately that it had achieved a breakthrough in quantum networking by photonically interconnecting two independent trapped-ion quantum systems.

Meanwhile, QBTS stock, QUBT stock, and XNDU stock rose more than 20%, 16%, and 56%, respectively at the time of writing.

Wall Street Bets

TD Cowen analyst Krish Sankar reportedly said in a note that he believes Nvidia’s new model would be a critical catalyst that would speed up commercialization of the quantum industry.

According to a report from MarketWatch, Sankar said that Ising’s two AI models tackle big challenges that may have been a bottleneck for quantum systems.

Meanwhile, B. Riley Securities analyst Craig Ellis reportedly told MarketWatch that the Ising models for quantum error correction could enable more advanced AI workloads, eventually becoming a big catalyst for quantum adoption over time.

What Did Retail Say?

On Stocktwits, retail sentiment around RGTI, IONQ, QBTS, QUBT, XNDU stocks was in the ‘extremely bullish’ territory at the time of writing amid ‘extremely high’ message volumes.

One bullish user called the companies ‘The Fabulous Five’ amid the share price surges, while another user said that this was ‘just the beginning.’

Another bullish user noted that while Nvidia was dominating the market for now, quantum players could eventually redefine the idea of accelerated computing.

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