Top 3 Quantum Computing Stocks To Watch In October 2026

Rising US Treasury yields and higher borrowing costs are forcing investors to think harder about where real long term breakthroughs may come from. Quantum computing fits that search for potential step change technology rather than incremental tweaks. If you care about owning businesses tied to that shift rather than just watching from the sidelines, keep reading. This article highlights three quantum computing stocks from our screener worth a closer look.

The three quantum computing stocks in this article are just a starting sample, and the full screen surfaced 21 more companies with equally interesting narratives that are not covered here.

To identify potential high-conviction ideas across hardware, software, and research leaders in quantum computing, head straight into the Quantum Computing Stocks screener

FormFactor is a behind the scenes gear supplier for advanced chips, and its probe cards and cryogenic systems put it directly in the quantum computing toolchain even though most sales still come from broader semiconductor testing.

FormFactor, Inc. designs and supplies probe cards and test systems for complex chips, including quantum processor devices and qubits. The business generates about US$747 million from Probe Cards and US$155 million from Systems, giving it a broad test and measurement base. The stock is valued at roughly US$11.7b.