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DARPA has not named two quantum-computing stocks to buy. Its October 7, 2026 update says Atom Computing, Diraq, IBM and IonQ advanced to a technical evaluation stage; the agency says its program is not a competition to select winners and losers. A separate March 2026 article named Alphabet and IBM as stock picks, but that was an independent editorial opinion, not a DARPA recommendation.
What DARPA actually announced
DARPA’s Quantum Benchmarking Initiative (QBI) is evaluating whether any quantum-computing approach can reach “utility-scale” operation by 2033. The agency defines that threshold as a system delivering computational value that exceeds its cost. The target is a program goal—not a promise that a useful system will exist by that date.
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In an October 7, 2026 update, DARPA said four organizations advanced to Stage C: Atom Computing, Diraq, IBM and IonQ. Microsoft and PsiQuantum had previously entered the final phase through a separate pilot, the Underexplored Systems for Utility-Scale Quantum Computing (US2QC). DARPA says it has evaluated more than 20 companies.
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Random freezes, missing sound and display glitches usually trace back to one bad driver. Find and replace yours safely.Free scan · under a minuteThose are facts about organizations’ progress through a government technical evaluation. They do not amount to a list of publicly traded stocks, a ranking of companies by investment potential or an endorsement to buy shares.
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Why QBI participation is not a stock recommendation
QBI is designed to assess the state of commercial quantum computing and whether different approaches have credible paths to utility-scale operation. DARPA has explicitly said it does not intend to select winners and losers. The initiative asks technical questions about systems and their prospects; it does not evaluate whether a company’s shares are attractively priced or suitable for an investor.
That distinction matters because a company can make progress in an engineering assessment without its stock being a good investment at a particular price. QBI status by itself says nothing about valuation, earnings, financial strength, competitive position or expected shareholder returns. The information available here does not establish current share prices, valuations, financial performance or relative expected returns for Alphabet, IBM or the QBI participants.
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What the three QBI stages mean
DARPA’s process moves from a proposed concept toward government scrutiny of a proposed system’s construction and operation:
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- Stage A: concept. Teams describe a concept with a plausible path to a utility-scale system.
- Stage B: plans and prototypes. Teams develop research and development plans, identify risks and ways to mitigate them, and work on prototypes. DARPA’s November 6, 2025 Stage B page named Atom Computing, Diraq, IBM, IonQ, Nord Quantique, Photonic Inc., Quantinuum, Quantum Motion, QuEra Computing, Silicon Quantum Computing Pty. Ltd. and Xanadu. That is a dated roster, not the latest Stage C list. The page also said Google Quantum AI joined Stage A, while Microsoft and PsiQuantum advanced through US2QC.
- Stage C: verification and validation. DARPA works with the government to verify and validate whether a proposed system can be built as designed and operated as intended. QBI managing director Micah Stoutimore described this phase as moving “from plans to proof,” with hardware and systems scrutinized against the teams’ models and roadmaps.
The approaches represented in the initiative include neutral-atom, silicon spin-qubit, superconducting and trapped-ion architectures. The agency’s purpose is to assess whether approaches can meet its technical goal; the existence of different approaches is not evidence that one is already the investment winner.
Where the “two stocks” framing came from
A March 1, 2026 Motley Fool article by Johnny Rice, titled “The 2 Best Quantum Computing Stocks to Buy in March,” named Alphabet and IBM. That was the author’s independent stock opinion. It does not establish that DARPA made the picks, and the article’s March framing should not be mistaken for a current recommendation.
IBM’s presence in DARPA’s Stage C announcement does not transform the separate stock opinion into an agency endorsement. Alphabet is not among the Stage C organizations named in the October 7 update. The two lists answer different questions: the article offered an editorial view about stocks, while DARPA reported technical-program progress.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What an investor can reasonably take from the update
The announcement provides a signal that DARPA is continuing to scrutinize several technical paths, including systems associated with IBM and IonQ. It does not tell an investor which company will succeed, when quantum computing will become commercially valuable, or whether any company’s shares are worth buying. DARPA itself says it does not yet know which teams or approaches will reach utility-scale operation.
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