GoKawiilA Rigetti quantum computer displayed at the Nvidia booth during the Nvidia GTC (GPU Technology Conference) in Washington, DC, US, on Wednesday, Oct. 29, 2025.
Quantum stocks climbed on Thursday, adding to a massive week-to-date rally fueled by enthusiasm for Nvidia 's new open-source artificial intelligence models designed to advance the burgeoning computing technology.
Since the start of the week, IonQ shares have skyrocketed 50%, as have shares of D-Wave Quantum . Quantum Computing and Rigetti Computing have surged more than 20% each.
The rally comes on the heels of Nvidia's unveiling 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. "With Ising, AI becomes the control plane — the operating system of quantum machines — transforming fragile qubits to scalable and reliable quantum-GPU systems."
Nvidia explained further in a press release that Ising "provides high-performance, scalable AI tools for quantum error correction and calibration — two of the most critical challenges in building hybrid-quantum classical systems."
The chip giant named Ising after a famous mathematical model.
Nvidia's announcement aired on what's become known as "World Quantum Day," ever since an international group of scientists announced in 2021 that April 14th should be used to promote public awareness of quantum technology.
The date was chosen because 4.14 represents the first three digits of a key concept in quantum physics known as the Planck constant.