Top Quantum Computing Stocks For September 2026 - Yahoo Finance

Top Quantum Computing Stocks For September 2026 Sasha Jovanovic Sat, September 26, 2026 at 5:12 PM EDT 3 min read IONQ +1.11% WDC +1.44% QUBT -2.18% Record foreign capital flows into US stocks, with US$942b in net purchases over 12 months, show how strongly global investors are hunting for the next wave of technology winners. Quantum computing sits at the frontier of that search, where breakthroughs in hardware and software could reshape entire industries. This article highlights three quantum computing stocks from our screener that capture very different angles of that opportunity. The three quantum computing stocks below are just a small sample, as the full screen surfaced 22 more companies with equally detailed narratives that are not covered in this article. If you want to identify potential high-conviction quantum computing opportunities quickly, head straight to the Quantum Computing Stocks screener to filter and analyze the broader universe. IonQ (IONQ) IonQ gives this screener a pure hardware feel, since the business focuses on trapped-ion quantum computers delivered through major cloud platforms and wraps that into a single computer services revenue stream. IonQ is a quantum computing specialist that sells access to trapped-ion systems and related services, generating about US$246 million from computer services, with a market value near US$18.1b. "Physics Risk is Gone (The 99.99% Moat): IonQ announced it has achieved a world-record 99.99% "four-nines" two-qubit gate fidelity." The real question is how one unresolved funding and profitability pressure shapes pricing power once large cloud and research contracts scale up. As that funding question hangs in the air, read the full narrative for IonQ to see how pricing power, dilution risk and competitive positioning could be accelerating or masking IonQ's edge. NYSE:IONQ Past Earnings Growth as at Sep 2026 Western Digital (WDC) Western Digital gives this screener a different angle by anchoring the storage layer for data hungry AI and quantum workloads. It is also backing a targeted quantum error correction project that links its hardware know how directly to more reliable quantum computers.

Western Digital Corporation develops and sells hard disk drive based storage products, generating about US$12.9b from HDDs, and has a collaboration focused on quantum error correction technology. The business is valued around US$164.7b. "First, capacity. The whole thesis rests on the duopoly holding the line." The real swing factor for Western Digital is how long buyers keep paying up for storage if a single key assumption about future supply breaks. If that supply question is what worries you, read the full narrative for Western Digital to see how Western Digital's pricing power could be accelerating or stalling from here.

Story Continues NasdaqGS:WDC Earnings & Revenue History as at Sep 2026 Quantum Computing (QUBT) Quantum Computing Inc. leans into the quantum hardware theme through its Entropy Quantum Computer and photonic quantum products, while still earning about US$9.8 million from software and programming and carrying a market value around US$2.0b.

Quantum Computing Inc. gives this screener a pure-play feel on photonic quantum hardware, since the business is building room temperature machines and related chips that aim to plug directly into AI and data center workloads. "Acceleration of AI and data center workloads is driving urgent demand for energy efficient, high speed computing. This is positioning QCi's room temperature photonic quantum and reservoir computing platforms to scale from small research contracts to larger production deployments, which should expand revenue and support higher gross margins as volumes increase." What really matters next is how funding and dilution pressure shapes the payoff from any future jump in high value quantum orders. That funding overhang is only half the story. Read the full narrative for Quantum Computing to see how Quantum Computing's photonic edge could turn that pressure into accelerating upside potential. NasdaqCM:QUBT Past Earnings Growth as at Sep 2026 Seeking Alternatives Before The Crowd Fresh ideas do not stay quiet for long. Once momentum builds, prices can be flying while you are still reading. Scan these under the radar picks now and consider taking action early. Identify cash rich compounders before the crowd by scanning the list of solid balance sheet and fundamentals (24 results) while their valuations still reflect caution instead of full on optimism. Follow accelerating capital into AI leaders by tracking 87 AI infrastructure stocks that could benefit from rising compute demand while institutional attention is still catching up. Look for potential uptrends in reliable payers by reviewing the 8 dividend fortresses before yields adjust and total return calculations start to look much less attractive. 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. Have feedback on this article? Concerned about the content? Get in touch with us directly. Alternatively, email editorial-team@simplywallst.