Quantum Computing
Trapped-ion quantum computing, moving from lab milestones toward commercial systems and defense contracts — now paired with an owned semiconductor foundry.
Personal notes published for reference. Figures are sourced from company filings, releases, and press coverage as of the date above — the interpretation is mine and may be wrong.
CEO Niccolo de Masi, with Chris Ballance as President of Quantum Computing. The team has consistently hit the technical milestones it set publicly — 99.99% two-qubit gate fidelity and #AQ64 in 2025 — which is the kind of promise-then-deliver record that matters more than usual in a field this speculative.
Potentially enormous, and almost entirely ahead of it. Quantum computing as a commercial market barely exists yet, which cuts both ways: the ceiling is theoretical rather than observed. The nearer-term TAM is defense and government — computing, networking, sensing, and security sold as national infrastructure.
Roughly $2B in cash following the SkyWater and Oxford Ionics acquisitions, down from $3.1B in Q1 2026 — both deals were funded mostly in stock, which preserved the balance sheet but didn't preserve the share count. Still a multi-year runway, though Q2 2026 adjusted EBITDA loss of $120.3M shows the burn is scaling with the ambition.
Q2 2026 revenue came in at $80.1M, up 287% YoY and above the prior $65–68M guide — on the standalone quantum business, before SkyWater is even in the numbers. At its Sept 8, 2026 Investor Day, IonQ raised full-year 2026 guidance to $450–460M combined (from $280–290M standalone) once five months of SkyWater revenue consolidate in.
At its Sept 8, 2026 Investor Day, IonQ branded the 256-qubit program Superion and paired it with a newly-owned semiconductor foundry. This is the roadmap the current valuation is underwriting.
The precision-electronics-instead-of-lasers approach behind Superion is the technology IonQ acquired with Oxford Ionics for roughly $1.075B in 2025 (mostly stock). It's what makes the design manufacturable through a standard semiconductor process — the premise behind scaling from hundreds to millions of qubits.
SkyWater Technology — a US contract chip manufacturer — gives IonQ an in-house fab instead of a queue at someone else's. Management cited design cycles dropping from 9 months to 2, and 12x more wafer lots processed over six months versus the prior external foundry relationship.
SkyWater is also being run as a merchant foundry — SkyWater Quantum Solutions now serves other qubit modalities, including competitors. Qolab, a superconducting-qubit company, signed on as a customer. That's either a smart way to monetize excess capacity or a tell that quantum-chip volume alone doesn't fill a fab. Probably both.
The first sale is no longer alone. Horizon Quantum's Q1 2026 purchase of an early 256-qubit system for its Dublin HQ was followed by two more in the same week: on Sept 23, 2026, NVIDIA picked Superion 256 as the first on-premises quantum processor at its Accelerated Quantum Research Center, wired into GB200 NVL72 systems (install 2027). On Sept 24, Florida International University signed for Florida's first Superion (install late 2027). IonQ hasn't disclosed per-deal terms, but at roughly $25M a system, three units is on the order of $75M of hardware — meaningful against a $450–460M 2026 guide, though mostly recognized on 2027 delivery rather than this year.
The FIU and Horizon deals are sales. The NVIDIA placement is an endorsement: the company that sets the standard for AI compute putting IonQ's chip inside its own quantum-classical research center. The stock jumped ~11% on the day and then gave most of it back — typical for this name, and a reminder that the market hasn't decided how much a logo is worth.
Superion 256 customer deliveries in 2027 and Superion 10K's cryo-CMOS fault-tolerance demo in 2028 are the next two milestones the whole 2030 target depends on. A slip on either resets the credibility the company built by hitting its 2025–2026 milestones on schedule.
In February 2026 IonQ was selected for the Missile Defense Agency's SHIELD initiative — Scalable Homeland Innovative Enterprise Layered Defense — tied to the Golden Dome program.
This is an IDIQ — indefinite delivery, indefinite quantity — with a ceiling of $151B across the whole program. Being selected means IonQ is eligible to compete for future task orders. It does not mean IonQ has been awarded $151B, and the initial value wasn't disclosed.
The important caveat: more than 2,400 companies are eligible under the same framework. The signal here is credentialing — IonQ now sits inside the defense procurement pipeline — not a booked contract.
SHIELD fits a run of government work rather than standing alone: a $28M DARPA extension for optical atomic clocks, a Sandia National Laboratories collaboration, a DOE memorandum on quantum technologies in space, and the SEQCURE project with ARLIS. IonQ Federal is being built as a distinct channel.
Government demand is the bridge between "quantum computing is interesting" and "quantum computing has customers." Defense budgets don't require the technology to be commercially mature — only strategically necessary.
At Investor Day, IonQ published the first fully-compiled estimate for attacking Bitcoin's elliptic curve (secp256k1): roughly 19,397 physical qubits and about 25.7 days per attempt. It's a credibility play — demonstrating the threat is how you sell the defense — backed by an $8.18M agreement with Congruity360 for quantum key distribution and post-quantum cryptography across finance, healthcare, and defense.
A speculative-tech pure-play like this lives and dies on whether professional money keeps underwriting the roadmap through the volatility — ownership trend is one of the cleaner reads on that.
Institutional ownership climbed from 44.0% a year earlier (Q1 2025) to 51.2% in Q4 2025 to 53.2% in Q1 2026, with the holder count growing alongside it (1,078 to 1,213 institutions). That's a steady build, not a single-quarter spike — it tracks the 256-qubit and SHIELD milestones landing on schedule.
This is a stock that's moved 30%+ in single sessions on milestones and short-seller reports. A rising institutional base doesn't dampen that volatility, but it does mean the shares changing hands aren't purely retail momentum — there's real underwriting of the 2030 roadmap alongside it.
Ownership trackers vary in methodology and lag actual 13F filing dates by weeks; treat the percentage as directional rather than exact.
Three ways to read the same Sept 8, 2026 Investor Day — a raised guide, a rebranded roadmap, and a stock that fell 7% on the news anyway.
If this plays out: ~$25
Oxford Ionics (~$1.075B, mostly stock, 2025) and SkyWater ($1.8B cash-and-stock, 2026) have meaningfully grown the share count, and the headline $450–460M 2026 guide leans on five months of SkyWater's existing chip-manufacturing revenue, not accelerating quantum bookings. Cash burn is scaling too — $120.3M of adjusted EBITDA loss in a single quarter. Superion 10K's fault-tolerance demo asks the market to trust a 2028 milestone from a company that has never operated at that qubit count, and SkyWater taking on a competitor (Qolab) as a foundry customer reads as much like "quantum-chip volume alone doesn't fill a fab" as it does like a platform win. The market's own reaction — down 7% on a guidance raise, Mizuho cutting its target from $61 to $52 — says even bulls are recalibrating for a messier, more capital-intensive story than "pure-play quantum compute."
If this plays out: ~$69
Standalone Q2 2026 revenue of $80.1M (+287% YoY) beat guidance before SkyWater was even in the numbers — the core business was already inflecting. Both acquisitions are logical and adjacent (control electronics, then the fab to manufacture them at scale) and stock-funded rather than debt-funded, preserving the ~$2B runway. Near-term milestones — 99.99% fidelity, the Horizon Quantum sale, SHIELD selection — have landed on schedule, which buys some benefit of the doubt for Superion 256 (2027) and Superion 10K (2028), re-checked as each comes due. Expect continued volatility around every roadmap date and a multiple that stays rich relative to current revenue — this trades on milestone delivery, not on the guidance number itself.
If this plays out: $100+
Electronic Qubit Control removes trapped-ion's biggest scaling bottleneck, and owning the fab that builds those chips turns it into a captive, standardized manufacturing pipeline. SkyWater Quantum Solutions could become a second profit engine in its own right — a merchant foundry serving every qubit modality, making IonQ a picks-and-shovels supplier regardless of which architecture ultimately wins. Government demand compounds on top: SHIELD/Golden Dome eligibility, the secp256k1 attack estimate, and the Congruity360 security deal are three separate credentialing tracks (compute, security, foundry) that don't require commercial maturity, only strategic necessity. If 2027–2028 milestones land the way 2025–2026 milestones did, $450–460M in 2026 revenue is a small base under one of the only vertically integrated, fault-tolerance-track quantum companies — and the ~$69 average analyst target ($100 high, per B. Riley) is conservative, not aggressive.
$45.48 at the Sept 25, 2026 close — up about 24% from $36.75 two weeks earlier on the NVIDIA and FIU Superion deals and a real-time error-decoder result — against a consensus "Strong Buy" and an average analyst target around $67–69 (range $49–$100). That spread is wide enough that the case you believe matters more than the consensus rating. The scenario targets above are my own rough, directional estimates — not formal price targets — anchored to the sell-side range rather than a full model.
The stock hit an all-time high near $84 in October before cooling sharply through late 2025 and early 2026 amid a tech selloff and a critical short-seller report. Even bulls concede the multiple prices in a great deal of future execution.
Oxford Ionics and SkyWater were both funded mostly or partly in IonQ stock. Two large deals in 14 months is a meaningfully different share count than the one investors underwrote a year ago — worth tracking alongside revenue growth, not just revenue growth alone.
Quantum pure-plays trade violently on milestones and contracts, then give it back on broad risk-off moves. Position sizing matters more here than in the rest of the watchlist.
Rigetti among pure-plays, plus IBM and Google pursuing different qubit architectures with vastly deeper balance sheets. Trapped-ion being the winning modality is an assumption, not a given.
The 2030 fault-tolerance target is far enough out that a lot can change — and the revenue supporting the valuation today is small relative to the story.