Honeywell-controlled Quantinuum moved from “S-1 on file” to “roadshow live” on May 26, 2026, filing an amended prospectus that sets a price range of $45 to $50 a share on roughly 21 million shares. At the top of the range, that produces $1.05 billion in gross proceeds and an implied market capitalization near $12.7 billion — by some distance the largest pure-play quantum-computing listing ever attempted, per Reuters’ May 26 report.
The Nasdaq listing under the proposed ticker QNT is the same one we covered when the public S-1 was first filed on May 8. The new amendment is what underwriters needed to actually start taking orders: a defined share count, a defined price band, audited financials, and disclosed dilution math.
The deal in one screen
| Term | Value |
|---|---|
| Issuer | Quantinuum (Honeywell majority-owned) |
| Exchange / Ticker | Nasdaq Global Select Market / QNT |
| Shares offered | ~21.0 million |
| Filed price range | $45.00 – $50.00 per share |
| Gross proceeds (top of range) | Up to ~$1.05 billion |
| Implied valuation (top of range) | ~$12.7 billion |
| FY2025 revenue (disclosed) | ~$31 million |
| FY2025 net loss (disclosed) | ~$192.6 million |
| Lead bookrunners | J.P. Morgan; Morgan Stanley (with Jefferies and Evercore ISI as additional active book-runners) |
| Headquarters | Broomfield, Colorado |
How $12.7 billion stacks up against listed peers
The most useful frame for QNT’s price talk is not Quantinuum’s last private mark (~$5 billion from a JPMorgan-led 2024 round) but the publicly traded quantum cohort. Three names dominate that universe — IonQ (trapped-ion, NYSE: IONQ), D-Wave Quantum (annealing, NYSE: QBTS), and Rigetti Computing (superconducting, Nasdaq: RGTI). All three came to the public market via SPACs between 2021 and 2022. None of them has Quantinuum’s revenue scale, but all three trade at strikingly higher implied multiples on revenue.
That picture is the entire pitch in one image. Quantinuum is asking buyers to slot QNT just above D-Wave and just below IonQ — which is a defensible spot if you believe trapped-ion hardware plus Honeywell distribution is worth a premium to annealing, but a step down from IonQ’s lead in U.S. defense and quantum-networking deals. It is also a roughly 2.5× step-up from the company’s $5 billion private mark from January 2024.
The numbers behind the headline
The financial disclosures are what move this from press-release territory into actual investment due diligence. The amended S-1 reportedly shows:
- $31 million of revenue in 2025 — small, but a real, growing book of business from government, pharma and energy customers.
- $192.6 million net loss in 2025 — quantum hardware burns cash, full stop. The $1.05 billion IPO raise is meant to extend runway through the H-Series 6 build-out.
- An implied ~410× price-to-sales ratio at the top of the range. That is not a typo; quantum pure-plays trade on milestones and bookings pipeline, not trailing multiples.
For context, Reuters’ deal report frames the listing as an attempt to “capitalize on heightened investor attention” in quantum. The Nasdaq’s quantum cohort has been one of the better-performing thematic baskets of 2026; D-Wave’s $100M CHIPS Act award earlier this month gave the trade fresh oxygen. The QNT roadshow lands into that tape.
What still has to happen
The amendment is not the green light. Three boxes still need ticking before QNT trades:
- SEC effectiveness — the amended S-1 must be declared effective by the staff, typically two-to-three weeks from this stage.
- Book closes / final pricing — JPMorgan and Morgan Stanley take indications-of-interest from institutional accounts, the syndicate fixes a final price (in, above or below the band), and shares are allocated overnight.
- First trade — typically the morning after pricing. Watch the indicated opening trade against the offer price: a 30%+ first-day pop is what underwriters quietly hope for; a break of issue is the worst possible signal for any follow-on quantum issuance behind it.
The bigger question — and one this offering will settle one way or the other — is whether public investors are willing to fund capital-intensive deep-tech IPOs at multi-billion valuations again. The 2026 IPO calendar has been heavy with software and biotech; a quantum hardware company sized at $12.7 billion is a different kind of risk underwriting, and how QNT prints will inform what SpaceX, Quantinuum’s competitors, and other deep-tech queue-jumpers see as a realistic mark.
Sources
- Reuters — “Honeywell’s Quantinuum targets $12.7 billion valuation in US IPO” (May 26, 2026)
- Quantinuum / Honeywell — S-1 registration statement press release (May 8, 2026)
- SEC EDGAR — Quantinuum S-1 filings
- Google Finance — IonQ (IONQ), D-Wave (QBTS), Rigetti (RGTI) — peer market caps, May 27, 2026 pre-market
- ECMSource — prior Quantinuum S-1 coverage (May 14, 2026)
Disclosure: This article was produced with AI assistance and reviewed before publication. It is for informational purposes only and is not investment advice.