Quantum computing is moving from theory to tangible products at the same time as investors are dealing with higher inflation, elevated bond yields and energy related uncertainty. In this setting, some prefer themes where long term research and intellectual property matter as much as near term growth. The Quantum Computing Stocks screener focuses on companies working on hardware, software and research around quantum algorithms and superconducting qubits. It can help you quickly narrow a complex field to stocks that are already active in this space. In this article, you will see 3 stocks from that screener.

Western Digital (WDC)

Overview: Western Digital is a long established US storage company that designs and sells hard disk drives and related data storage solutions for everything from consumer devices to data centers across the Americas, Asia, Europe, the Middle East, and Africa, and is also working with Open Quantum Design on quantum error correction technology.

Market Cap: US$146.3b

Western Digital operates at the intersection of AI, cloud data centers and next generation storage, with relationships across the largest hyperscalers and a roadmap that targets very high capacity HDDs such as UltraSMR and HAMR drives. Recent earnings results, updated guidance, a 20% dividend increase and sizeable buybacks illustrate how management is using cash generation to return capital to shareholders and reduce debt. Analyst forecasts for revenue and earnings also highlight the importance of AI-related storage demand to the company’s current positioning. At the same time, reliance on a relatively small group of cloud customers and rapid shifts in storage technology mean this is not necessarily a set and forget stock, and those risks are factors investors may wish to weigh against the potential opportunities.

Western Digital’s AI and cloud storage angle is getting attention, but the real question is how those cash returns and hyperscaler ties stack up against concentration risks in the 3 key rewards and 2 important warning signs.

Viavi Solutions (VIAV)

Overview: Viavi Solutions provides test, monitoring, and security equipment and software that help telecom operators, cloud providers, equipment makers, governments, aerospace and defense customers, and critical infrastructure operators build, run, and secure high speed networks. Its optical coatings business supplies anti counterfeiting and 3D sensing technologies used in currency, devices, and industrial applications.

Market Cap: US$12.9b

Investors looking at quantum and AI infrastructure may find Viavi interesting because its test gear sits at the heart of data centers moving to 400G, 800G, and 1.6T, and its partnership with QuNu Labs targets quantum secure networking. At the same time, the company is still working through losses and a history of volatile telecom spending. Recent quarters have attracted bullish analyst attention as data center, aerospace and defense, and the Spirent acquisition feed NSE activity, but a high P/S multiple, leverage, and exposure to supply chain and integration risks mean expectations are already demanding and execution quality is important here.

Viavi’s network and quantum security story is gaining momentum, but the real puzzle is how its high P/S ratio and leverage fit together in the 1 key reward and 3 important warning signs (1 is major!)

Rigetti Computing (RGTI)

Overview: Rigetti Computing builds and operates superconducting quantum computers, selling access to its systems and quantum processing units through the cloud as quantum computing as a service, along with software, foundry and professional services for commercial, government, and research customers worldwide.

Operations: Rigetti currently generates all of its approximately US$7.1m in revenue from Internet Software & Services, with around US$3.7m from the United States, US$3.2m from Europe, and a small contribution from Asia and other regions.

Market Cap: US$5.8b

Rigetti operates at the sharp end of quantum hardware, with systems like its 108 qubit Cepheus-1-108Q now available via QCS and Amazon Braket and backed by contracts such as the US$8.4m deal with India’s Centre for Development of Advanced Computing and deployments like Saskatchewan’s Novera QPU. Revenue, at US$7.09m in 2025, is still small and losses are substantial, with ongoing cash burn, shareholder dilution, insider selling and a P/B of 10.6x indicating high funding and valuation risk. The company also has experienced governance, in house manufacturing and a chiplet architecture targeting quantum advantage, which may appeal to investors who understand the trade off between upside and volatility.

Rigetti’s quest for quantum advantage is accelerating, but few investors are weighing how its chiplet architecture, cash burn and valuation risk fit together in the 1 key reward and 4 important warning signs

The three stocks in this article are only a starting point, and the full Quantum Computing Stocks screener has identified 23 more companies with equally compelling quantum hardware, software and research narratives in the Quantum Computing Stocks screener. Use Simply Wall St to identify the specific catalysts, risk profiles and business narratives that matter to you so you can analyze and focus on the highest conviction quantum computing opportunities.

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This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.