Rigetti quantum computer on display at the Nvidia booth during the Nvidia GTC (GPU Technology Conference) on Wednesday, October 29, 2025 in Washington, DC, USA.
Kent Nishimura | Bloomberg | Getty Images
Quantum stock rose on Thursday, adding to its massive gains since the start of the week, fueled by market enthusiasm. Nvidia‘s new open source artificial intelligence model was designed to advance fast-growing computing technology.
Since the beginning of the week ion Q ‘s stock price also skyrocketed by 50%. D Wave Quantum. quantum computing and righetti computing Each soared more than 20%.
The gathering comes on the heels of Nvidia’s announcement of Ising, a new family of open source models aimed at accelerating the adoption of quantum computing.
“AI is essential to making quantum computing practical,” Nvidia CEO Jensen Huang said in a statement. “At Ising, AI becomes the control plane, or operating system, of quantum machines, transforming fragile qubits into scalable and reliable quantum GPU systems.”
Nvidia further explained in the press release that Ising “provides high-performance, scalable AI tools for quantum error correction and calibration, two of the most important challenges when building hybrid quantum-classical systems.”
The chip giant named it Ising after a famous mathematical model.
Nvidia’s announcement was broadcast on what has become known as “World Quantum Day” since an international group of scientists announced in 2021 that April 14 should be used to promote public awareness of quantum technology.
This date was chosen because 4.14 represents the first three digits of an important concept in quantum physics known as Planck’s constant.
Tuesday also marked Nvidia’s longest winning streak since 2023, with the stock up 18% in 10 days.
Proponents tout quantum computing as a revolutionary technology that can accelerate drug discovery and solve problems that everyday computers cannot answer.
The U.S. government and technology giants are investing heavily in advances in quantum computing.
In recent years, hyperscalers such as microsoft, alphabetand Amazon announced a chip that will power the tools of the future. IBM is racing to develop the first quantum computer by 2029.
But the market remains small, with the largest companies accounting for about $31 billion in market value before Thursday’s opening.
The sector’s speculative nature also makes it susceptible to significant volatility, with many stocks down year-to-date. DWave and Righetti fell 20% and 15%, respectively.
IonQ was also in the news on Tuesday. The Maryland-based company announced it had connected two remote quantum computers, calling it a “fundamental technological milestone.” Separately, the company has signed a contract with the Defense Advanced Research Projects Agency.
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