The firehose

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.

IonQ Reports $64.7M Q1 Revenue, +755% YoY; Raises FY26 Guidance to $260-270M

IonQ delivered Q1 2026 revenue of $64.7M, up 755% YoY, and raised full-year guidance from $225-245M to $260-270M. RPOs grew 554% to $470M. Adjusted EBITDA loss widened to $96.8M as the company integrates Lightsynq, Capella, and prepares to close the $1.8B SkyWater acquisition.

D-Wave Q1 Revenue Falls 81% on Lumpy Comp; Bookings Surge 1,994% to $33.4M

D-Wave reported Q1 2026 revenue of $2.9M, down 81% versus a one-time Q1 2025 system sale. The more meaningful number: bookings of $33.4M (+1,994% YoY) and RPO of $42.4M. QCaaS subscription revenue grew 2,015% YoY. Opex doubled post-Quantum Circuits acquisition.

Rigetti Q1 Revenue +193% YoY to $4.4M; 108-Qubit Cepheus-1 Now Generally Available

Rigetti reported Q1 2026 revenue of $4.4M, up 193% YoY but still tiny relative to its $6.8B market cap. The bigger product story: the 108-qubit Cepheus-1-108Q modular chiplet system reached general availability across AWS Braket, Azure Quantum, and qBraid in Q1.

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.

China Claims First Dual-Core Neutral-Atom Quantum Computer

A Chinese research team announced the first dual-core neutral-atom quantum computer, demonstrating two independent atom arrays operating in parallel. The result extends China's strong neutral-atom track record and tightens the global competitive gap with Atom Computing, QuEra, and Pasqal.

IonQ to Acquire SkyWater for $1.8B, Becoming Only Vertically Integrated Quantum Player

IonQ announced a $1.8B acquisition of SkyWater Technology, gaining the only US-soil Trusted Foundry serving the DoD. The deal creates the first full-stack quantum company combining ion-trap systems, photonic interconnects, and chip fabrication. Shareholder approval secured in May; closing expected Q2/Q3.

Xanadu Closes SPAC Merger, Lists on Nasdaq/TSX as XNDU

Xanadu completed its merger with Crane Harbor Acquisition Corp on March 26, listing dual on Nasdaq and TSX under XNDU. Gross proceeds totaled $302M ($225M trust + $275M PIPE at $10/share). Combined market cap opened near $3.6B.

Pasqal to Go Public Via $2.6B SPAC with Bleichroeder Acquisition Corp II

Pasqal announced a SPAC merger at $2.0B pre-money / $2.6B pro forma, with €170M PIPE plus €170M convertible (~$370M total). The deal makes Pasqal the second public neutral-atom name after Xanadu and provides European LP exposure for US investors.

IBM Unveils Nighthawk + Loon + Kookaburra Roadmap; 10× QEC Decoder Speedup

At the 2025 IBM Quantum Summit, IBM unveiled Nighthawk (120 qubits, degree-4 connectivity), Loon (qLDPC C-couplers tested), and reaffirmed the 2026 Kookaburra modular system on path to Starling FTQC by 2029. The 10× QEC decoder speedup was delivered one year ahead of roadmap.

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.

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.

DOE Announces $625M Renewal for Five National Quantum Information Science Research Centers

The Department of Energy committed $625M over five years to renew its five National QIS Centers (BNL, Fermilab, Argonne, LBNL, ORNL). The single-largest US quantum funding announcement to date — $125M in FY25 alone — anchors the federal research base through 2030.

PsiQuantum Closes $1B Series E at $7B Valuation; BlackRock Leads

PsiQuantum closed a $1B Series E led by BlackRock — the first time a major public asset manager has anchored a quantum hardware round. Participants include Temasek, Baillie Gifford, Macquarie Capital, QIA, Counterpoint Global, and NVIDIA. Total raised now ~$2.3B.

IQM Raises €275M / $320M Series B — Largest Quantum Series B Ever

Finnish superconducting QC company IQM raised €275M ($320M) Series B led by Ten Eleven Ventures, with Tesi, Elo, Varma pension funds, Schwarz Group, Winbond, and Bayern Kapital. Total raised now ~$600M. IQM leads the global quantum-system unit-sales market.

Google Announces Quantum Echoes: First Verifiable Quantum Advantage Claim

Google Quantum AI announced "Quantum Echoes," an algorithm on Willow that Google describes as the first verifiable quantum advantage — a ~13,000× speedup vs classical supercomputer on a structured problem. Independent verification is still emerging; flag as credible but not yet broadly replicated.

Google Willow: Below-Threshold Quantum Error Correction Demonstrated

Google's Willow chip (105 qubits) demonstrated below-threshold QEC — error rate halves with each lattice scale-up (3×3 → 5×5 → 7×7). The result is the most important error-correction milestone of the decade and reset the credibility bar for the entire field.

SkyWater Stockholders Approve $1.8B IonQ Merger; Close Expected Q2/Q3

SkyWater stockholders approved IonQ's $1.8B cash-and-stock acquisition at a special meeting May 8 ($15 cash + $20 IonQ stock per share, 38% premium). The deal creates the only vertically integrated full-stack quantum platform with DoD Trusted Foundry access. FTC review reportedly ongoing.

Quantum Motion Closes $160M Series C — Largest UK Quantum Round Ever

UK silicon spin-qubit specialist Quantum Motion closed a $160M Series C co-led by DCVC and Kembara, with British Business Bank investing £40M alongside Oxford Science Enterprises and Bosch Ventures. Largest UK quantum venture round to date; advanced to DARPA QBI Stage B in late 2025.

IonQ Sells First 6th-Gen 256-Qubit Chip-Based System to University of Cambridge

IonQ disclosed the landmark sale of its first 6th-generation chip-based 256-qubit system to the University of Cambridge, anchoring a secure quantum networking partnership. Architecturally significant: validates the chip-based scaling path beyond IonQ's legacy linear ion traps.

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.

Harvard Researchers: Quantum Computing Advancing Faster Than Expected

Harvard researchers co-publishing with QuEra and MIT collaborators released analysis arguing the scaling pace of neutral-atom QEC is exceeding industry forecasts, citing 2:1 physical-to-logical encoding rates demonstrated in April. Frames the cryptographic risk timeline as advancing.

IBM's Krishna Predicts First Real-World Quantum Advantage in 2026

IBM CEO Arvind Krishna publicly forecast that IBM will demonstrate the first real-world quantum advantage during 2026, anchored on the Nighthawk 120-qubit processor running circuits with up to 7,500 gates in three 120-qubit modules. Sets investor expectation marker.

IBM + MIT Launch Computing Research Lab Spanning AI and Quantum

IBM and MIT formally launched the MIT-IBM Computing Research Lab, expanding their long-running AI collaboration to include quantum computing alongside foundational AI research. In support of IBM's 2029 fault-tolerant Starling target.

Maryland FY27 Budget: $20M Toward IonQ HQ + "Capital of Quantum" Initiative

Maryland's FY2027 budget allocates $20M of a $50M commitment toward IonQ's new College Park headquarters, plus startup infrastructure. Part of the $1B "Capital of Quantum" initiative. IonQ to double Maryland workforce to 250+ over 5 years.

Researchers Propose Quantum Supply Chain Early-Warning as China Tightens Rare Earths

Academic researchers published a framework for monitoring quantum supply chain choke-points after China imposed export licensing on gadolinium, samarium, terbium, dysprosium and other heavy rare earths used in quantum cryogenics and laser systems. Highlights geopolitical fragility of the upstream stack.

QuEra/Harvard/MIT Simulate 2:1 Physical-to-Logical qLDPC Code

QuEra, Harvard, and MIT published a result simulating high-rate qLDPC codes on neutral-atom hardware achieving roughly 2 physical qubits per logical qubit — a >25× improvement over surface-code ratios. If reproducible at scale, materially compresses the fault-tolerance timeline and cryptographic-break horizon.

NVIDIA Launches "Ising" Open AI Models for Quantum Calibration; Quantum Stocks Rally

NVIDIA released "Ising," the first family of open-source quantum AI models for QPU calibration and error-correction decoding (2.5× faster, 3× more accurate than traditional decoders). Quantum stocks rallied broadly; Xanadu spiked 54% on the news. Reinforces NVQLink as the de facto hybrid integration standard.

Terra Quantum Signs LOI for $3.25B SPAC Merger

Swiss Terra Quantum AG signed a non-binding LOI to go public via SPAC merger with Mountain Lake Acquisition Corp II at $3.25B valuation. Continues the SPAC-listing wave following Pasqal, Xanadu, IQM, and Infleqtion.

Infleqtion (INFQ) Guides 2026 Revenue to $40M

Newly public Infleqtion (NYSE: INFQ) issued FY2026 revenue guidance of $40M, citing demand for quantum sensing and computing solutions. Sets a sector benchmark for neutral-atom commercialization following the SPAC merger close in January.

Q-Factor Emerges From Stealth With $24M Seed Backed by Intel Capital

Israeli stealth-stage neutral-atom startup Q-Factor unveiled with $24M seed led by NFX and TPY Capital, with Intel Capital, Korea Investment Partners, and Deep33. Significant validation of neutral-atom as the leading next-gen modality.

China Quantum Q1 2026 Funding (~CNY 2.2B) Nearly Matched All of 2025

Chinese quantum financing recorded ~CNY 11.2B cumulatively across 150 events, with Q1 2026 alone reaching ~CNY 2.2B — nearly matching full-year 2025. Backed by RMB 121.8B (~$17.5B) of state venture funding under the 15th Five-Year Plan.

Google + Oratomic Preprints: AI-Accelerated Quantum Cracking Earlier Than Expected

A Google white paper and an Oratomic preprint, posted independently on March 30, both argued AI-assisted Shor's-algorithm advances substantially compress the timeline to cryptographically relevant quantum computers. Nature followed with editorial coverage; cybersecurity community framed it as a PQC wake-up call.

Rigetti Commits Up to $100M UK Investment Toward 1,000+ Qubit System

Rigetti announced intent to invest up to $100M in the UK — its first major non-US commitment — targeting deployment of a 1,000+ qubit superconducting system in 3-4 years. Aligns with the UK's £2B national quantum strategy and builds on Rigetti's existing 36-qubit system at NQCC.

Atom Computing × Cisco MoU on Distributed Neutral-Atom Quantum Networks

Atom Computing and Cisco signed an MoU to physically link neutral-atom QPUs via Cisco's quantum networking hardware/software stack and integrate Atom's hardware with Cisco's network-aware distributed-quantum compiler. Validates the "many small QPUs networked" architectural thesis.

DARPA Expands QBI With New Stage A "QBIT" Call

DARPA expanded its Quantum Benchmarking Initiative with a new Stage A "QBIT" call for organizations not yet funded by QBI, with abstracts due July 31 and full proposals due September 30. Signals continued government appetite for hardware-agnostic, milestone-gated R&D investment.

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.

China's 15th Five-Year Plan Names Quantum an Industrial-Policy Priority

China's 15th Five-Year Plan (2026-2030) formally designated quantum technologies as an industrial-policy priority alongside semiconductors and AI, with $17.5B across three regional venture funds and a pivot from university grants toward commercial procurement and manufacturing subsidies. Materially reshapes the global competitive map.