Quantum Ledger
Vol. III·Cohort Profile·Quantinuum
Broomfield, CO / Cambridge, USA/UK·Founded 2021·Private
Boulder · Colorado
Analyst note · Trapped ion

Quantinuum Trapped ion

Highest-fidelity trapped-ion stack in commercial production; S-1 filed May 8 2026 targeting $20B+ IPO under ticker QNT.

Highest-fidelity trapped-ion stack in commercial production; S-1 filed May 8 2026 targeting $20B+ IPO under ticker QNT.

— Ledger Desk · analyst thesis

Bull case

upside

Helios (Nov 2025) delivers 96 physical / 48 logical qubits at 99.99% SPAM — the highest fidelities in the industry. First public demonstration of universal fault-tolerant gate set. Backed by Honeywell, JPMorgan, Mitsui, NVIDIA. 2025 revenue $30.9M with FY26 acceleration claimed. Helios installed in Singapore March 2026 — first non-US deployment.

Bear case

downside

Q1 2026 revenue dropped to $5.2M from $19.1M YoY; net loss widened to $136.6M. Roadmap claim of "universal fault-tolerant by 2030" is aggressive. IPO at $20B+ on $30.9M revenue = 650× sales — sets a fragile ceiling for the whole sector if it breaks.

Ledger Score · Quantinuum

The Ledger reads constructive

Highest-fidelity gate-model machine plus a credible Apollo 2029 fault-tolerant target; IPO is the swing factor for the entire cohort.

78
/ 100

Highest-fidelity gate-model machine plus a credible Apollo 2029 fault-tolerant target; IPO is the swing factor for the entire cohort.

Technology

92

Capital

78

Commercial

64

Government

80

Components are independently scored and weighted. See methodology.

Recent · 6 stories tracked

What we're watching

  1. 01
    quantum insider·May 8, 2026Mixed

    Quantinuum Files S-1 Targeting $20B+ IPO Under Ticker QNT

  2. 02
    quantinuum press·May 5, 2026Bullish

    Quantinuum and BMW Expand Multi-Year Materials Science Partnership

  3. 03
    quantum insider·May 4, 2026Bearish

    Xanadu Stock Plunges 67% Premarket on Filing to Register 294M Resale Shares

  4. 04
    quantum insider·Mar 10, 2026Bullish

    Quantinuum Demonstrates 94 Protected Logical Qubits at Beyond-Break-Even Fidelity

  5. 05
    darpa·Nov 11, 2025Bullish

    DARPA QBI Stage B: 11 Companies Advance Through Independent Benchmark Gate

  6. 06
    mit tr·Nov 5, 2025Bullish

    Quantinuum Launches Helios: 96 Physical / 48 Logical Qubits at 99.99% SPAM

A profile is a snapshot of an argument, not a verdict. The Ledger updates the score nightly; the thesis we revisit only when the facts change.

— analyst-note conventions