3 Quantum Computing Stocks to Watch in the Second Half of 2026

Adam Spatacco, The Motley Fool

Tue, July 7, 2026 astatine 7:35 AM CDT 4 min read

Over the past year, quantum computing stocks person emerged arsenic a compelling complement to mainstream opportunities successful the artificial quality (AI) ecosystem. While classical AI systems person demonstrated awesome capabilities successful signifier designation and generative tasks, galore high-value problems stay computationally strained.

Quantum machines leverage properties known arsenic superposition and entanglement to amended research solutions successful much blase applications. This opens the doorway to hybrid quantum-classical environments that could usher successful waves of amended data, tighter constraints, and caller algorithms for AI.

Missed Nvidia successful 2009? This Rare Signal Is Flashing Again. In 2009, a "Double Down" awesome flashed for a little-known chipmaker called Nvidia. For the archetypal clip successful years, that aforesaid "Total Conviction" awesome is flashing for a institution 1/100th the size of Nvidia. Continue »

According to an investigation by absorption consulting steadfast McKinsey & Company, quantum AI could make betwixt $1.3 trillion and $2.7 trillion successful economical worth by 2035. McKinsey sees quantum computing playing a captious relation crossed vigor and materials, pharmaceuticals, fiscal services, and question and logistics, arsenic good arsenic precocious electronics and defence systems.

In my view, 3 companies basal retired successful the quantum AI arena for chiseled reasons: Nvidia (NASDAQ: NVDA), IonQ (NYSE: IONQ), and Quantinuum (NASDAQ: QNT). Let's excavation into however each of these companies is progressive with quantum computing and measure their respective concern profiles.

Nvidia: The ecosystem enabler of time

Nvidia dominates classical AI acknowledgment to its one-two punch, featuring a heavy roster of graphics processing portion (GPU) architectures and bundle strategy CUDA. The company's superior quantum efforts revolve astir cuQuantum, a toolkit that accelerates the simulation of quantum circuits connected Nvidia hardware. This plan allows researchers to prototype next-generation algorithms without requiring capital-intensive carnal quantum processors.

While quantum computing is simply a negligible contributor to Nvidia's wide concern today, the company's attack is to softly go the broader instauration for hybrid classical-quantum systems successful the agelong run. As quantum hardware matures, request for high-performance classical compute -- Nvidia's expertise -- should emergence sharply arsenic these components assistance grip captious variables specified arsenic mistake correction and processing.

In essence, Nvidia is uniquely positioned to go the backbone that drives quantum advancement and further request for its halfway information halfway products, alternatively than needing to physique an wholly abstracted concern line.