Top Quantum Computing Stocks For September 2026

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 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.