The single pricing event that re-rates every public quantum name. Tracked daily.
Why this matters for everyone else
A $20B price tag against $30.9M of 2025 revenue is roughly ~485–650× sales. That multiple either drags every public pure-play upward, or — if QNT prices badly — becomes the ceiling everyone else trades against.
Honeywell (~54% pre-IPO owner) gets the most direct mark-to-market. IonQ holders should expect their multiple compressed against a higher-fidelity competitor with Microsoft Azure distribution. The narrative shifts from “IonQ is the only public quantum pure-play” to “Quantinuum vs IonQ vs everyone else.”
Float-management warning: Xanadu (XNDU) dropped 67% premarket on May 4 after filing to register 294M resale shares. The lesson for QNT — and for Pasqal's pending SPAC — is that newly-public quantum names must manage post-IPO float carefully or retail flows turn fast.
Target valuation
$15–20B+
~485–650× FY25 P/S
Target raise
Up to $1.5B
FY25 revenue
$30.9M
HON stake
~54%
Q1 cash
$677M
Valuation history
| Date | Round / event | Size | Valuation | Notes |
|---|---|---|---|---|
| Jan 2024 | Equity raise | $300M | $5B pre | JPMorgan-led |
| Sep 2025 | Equity raise | $600M | $10B pre | 2× step-up in 20 months |
| Jun 2026 (target) | IPO pricing (proposed) | Up to $1.5B | $15–20B | ~485–650× P/S |
At the $20B high end, IPO valuation is roughly 2× the September 2025 private mark and ~485–650× trailing revenue. Every dollar of IPO valuation above ~$5B is effectively a call option on Apollo's 2029 fault-tolerant target — the single most consequential forward-looking statement in the filing.
Path to pricing
Quantinuum formed (Honeywell + Cambridge Quantum)
JPMorgan-led $300M raise at $5B valuation
$600M raise at $10B pre-money (Honeywell + JPMorgan)
Helios commercial launch — 96 physical / 48 logical qubits
S-1 publicly filed targeting $20B+ valuation under ticker QNT
Roadshow + investor education
Pricing range and book building
IPO pricing and Nasdaq listing
First post-IPO Q1 earnings print (180-day lockup)
Filed financials · from the S-1
| Metric | FY 2024 | FY 2025 | Q1 2026 | Notes |
|---|---|---|---|---|
| Revenue | $23M | $30.9M | $5.2M | Q1 dropped from $19.1M YoY |
| YoY growth | — | +34% | -73% | Revenue lumpy on system sales |
| Net loss | $155M | $192.6M | $136.6M | Widening with Helios ramp |
| Honeywell ownership | ~58% | ~54% | ~54% | Pre-IPO dilution |
Risk factors · from the S-1
RIKEN (Japan's national research institute) accounted for ~60% of 2025 revenue, driven by the System Model H2 delivery to RIKEN Wako (April 2026). Q1 2026 revenue dropped 73% YoY because the prior-year quarter included the RIKEN hardware sale recognition. Lumpy enterprise-system revenue, not subscription.
Quantinuum operates under an NSA with the U.S. government restricting foreign-national hiring and requiring government approval for certain executive appointments. Constrains talent pool and M&A optionality.
Trapped-ion qubits depend on a specific isotope (likely ytterbium-171 or barium-137) sourced from the U.S. Department of Energy with no long-term commercial contract in place. Single-supplier risk on a foundational input.
Standard Up-C structure: Quantinuum Inc. must pay Continuing Common Unitholders — primarily Honeywell and Cambridge Quantum legacy holders — 85% of cash tax savings realized from the IPO and subsequent unit exchanges. Pre-empts a portion of future cash flow.
~54–55% Honeywell ownership pre-IPO; Honeywell will retain ~45–50% post-listing and has stated it will gradually reduce. Multi-year supply pressure as lock-ups expire. Up to two Honeywell-designated board seats while ≥40% holding.
Net losses are widening with Helios ramp. Apollo (fault-tolerant) not slated until 2029–2030. Failure to deliver Apollo on time, or any negative IV&V signal from DARPA QBI, would compress the multiple meaningfully.
Peer multiples · public quantum cohort
| Company | Ticker | 2025 revenue | Market cap | EV / revenue | Notes |
|---|---|---|---|---|---|
| IonQ | IONQ | $130.0M | ~$19.4B | ~150× | +202% YoY; only pure-play >$100M revenue |
| Rigetti | RGTI | $7.1M | ~$6.3B | ~890× | Revenue declined 34%; $590M cash |
| D-Wave | QBTS | $24.6M | ~$8.0B | ~325× | +179%; annealing not gate-model |
| Arqit Quantum | ARQQ | $0.5M | ~$235M | ~440× | Crypto, not compute |
| Quantinuum (proposed) | QNT | $30.9M | $15–20B | ~485–650× | Highest growth; 60% RIKEN concentration |
Quantinuum is priced at a premium to the cohort despite revenue concentration. The bull case: Helios is the highest-fidelity gate-model quantum computer publicly benchmarked, and the Apollo 2029 commitment is more credible than peers'. The bear case: 60% RIKEN concentration plus the Q1 2026 revenue collapse means the multiple is supported by narrative, not run rate. EV/Revenue shown as Market Cap / FY2025 revenue without net-cash adjustment — directional, not precise.
Product roadmap · as disclosed
| System | Status / target | Physical qubits | Logical qubits | Key spec |
|---|---|---|---|---|
| Helios | Commercial launch Nov 2025 | 98 | 48 | 99.921% 2Q fidelity |
| Sol (interim) | ~2027 (est.) | ~200 | ~50+ | Bridge system |
| Apollo | 2029 target | Thousands | Hundreds | Universal, fully fault-tolerant |
| Lumos | 2030+ | >1M physical | — | Utility-scale |
Coverage
Quantinuum Files S-1 Targeting $20B+ IPO Under Ticker QNT
Quantinuum publicly filed its S-1 for a Nasdaq listing on May 8, targeting up to $1.5B raised at a $20B+ valuation. The filing discloses 2025 revenue of $30.9M and a Q1 2026 net loss of $136.6M — a defining pricing event for the entire public quantum cohort.
Quantinuum and BMW Expand Multi-Year Materials Science Partnership
Quantinuum and BMW expanded their 2021-vintage collaboration into a multi-year deal applying trapped-ion quantum systems to catalyst and EV battery research. BMW will use successive systems — Helios, Sol (2027), Apollo (2029) — for industrial chemistry simulation. Reinforces auto-OEM validation of quantum chemistry.
Xanadu Stock Plunges 67% Premarket on Filing to Register 294M Resale Shares
Xanadu (XNDU) shares dropped 67% in premarket trading after the company filed to register 294 million resale shares — six weeks post-SPAC closing. The move highlights structural overhang for newly-public quantum names and may chill the Quantinuum and Pasqal IPO setups.
Quantinuum Demonstrates 94 Protected Logical Qubits at Beyond-Break-Even Fidelity
Quantinuum and academic collaborators demonstrated quantum computations using up to 94 protected logical qubits on a trapped-ion processor, reporting logical-gate error rates of ~1 in 10,000 — well below raw hardware error rates. First multi-dozen-logical-qubit beyond-break-even demonstration, a foundational fault-tolerance milestone.
DARPA QBI Stage B: 11 Companies Advance Through Independent Benchmark Gate
DARPA's Quantum Benchmarking Initiative advanced 11 companies to Stage B: IBM, Quantinuum, IonQ, Atom Computing, PsiQuantum, Diraq, Nord Quantique, Photonic Inc., Quantum Motion, QuEra, Silicon Quantum Computing, and Xanadu. The selection serves as the most credible independent benchmark in the field.
Quantinuum Launches Helios: 96 Physical / 48 Logical Qubits at 99.99% SPAM
Quantinuum commercially launched Helios — successor to H2 — with 96 physical and 48 fully error-corrected logical qubits at 2:1 encoding and 99.99% SPAM fidelity. The company claims the first universal, fully fault-tolerant gate set with repeatable QEC. First Singapore installation followed in March 2026.