Quantum computing stocks have had an extraordinary week. After Nvidia released a family of open-source AI models called “Ising” — designed specifically to accelerate quantum hardware development — shares across the sector erupted. IonQ and D-Wave Quantum each climbed more than 50% since Monday. Rigetti Computing and Quantum Computing Inc. surged over 30%. Retail investors on trading platforms promptly dubbed the group “The Fabulous Five.”
What Nvidia Actually Released
Nvidia’s Ising models are not quantum computers themselves — they are classical AI systems trained to simulate and optimize the kind of combinatorial problems quantum machines are built to solve. The “Ising model” refers to a mathematical framework from statistical physics, long used to describe how quantum spins interact. Nvidia’s adaptation applies large-scale neural networks to approximate Ising-type optimization, giving quantum hardware developers new tools for error correction, system calibration, and circuit design.
Jensen Huang framed the release with characteristic ambition, describing AI as the “operating system of quantum machines.” The models are open-source, and early adoption has already been announced by several quantum labs and enterprise partners. For the quantum industry — which has struggled to demonstrate commercially relevant advantage over classical systems — a credibility boost from Nvidia carries significant weight.
IonQ Goes Further: Linking Two Quantum Computers
The timing of Nvidia’s announcement aligned with IonQ’s own milestone. The company revealed this week that it had successfully connected two remote quantum computers, creating what it called “a foundational technical step toward a quantum internet.” Linking distributed quantum processors while preserving entanglement is one of the field’s hardest unsolved engineering problems, and IonQ’s demonstration — however early-stage — drew attention from researchers and investors alike.
IonQ also secured a new contract with DARPA this week, providing further institutional validation. Separately, French startup C12 published a detailed roadmap toward fault-tolerant quantum computing, targeting what it calls “Panopeia” — a utility-scale integrated system — by 2033.
Momentum or Mirage?
Quantum computing stock rallies have a pattern: a single credible announcement from a major player triggers speculative buying, prices surge, then correct as fundamentals reassert themselves. This week follows that template. D-Wave’s CEO, Alan Baratz, took a sharp angle in comments to the press, stating that Nvidia “should be shaking in their boots” as quantum computing matures — a claim that reflects competitive anxiety more than near-term displacement risk.
What is different this cycle is the involvement of Nvidia as an active collaborator rather than a bystander. The company’s decision to open-source the Ising models signals a longer-term bet that quantum hardware will eventually become a meaningful complement to GPU-based AI infrastructure. Whether that convergence happens on a two-year or ten-year timeline remains the central debate in the field.
For now, the market has given quantum computing another vote of confidence. Whether the fundamentals follow is the question that has dogged the sector for years — and has not yet been definitively answered.
