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ARQQ vs HQ: Which Quantum Stock Is Better?

Arqit Quantum (Quantum Security) vs Horizon Quantum (Quantum Software) — live market, SEC financial and quantum-hardware data side by side.

Direct verdict: ARQQ vs HQ

HQ leads this data snapshot on 3 of the five headline market, financial, runway, return and dilution measures with comparable data. The better investment still depends on valuation, technology execution and risk tolerance.

HQ is the larger company at $880.28M market cap, about 2.9× the size of ARQQ ($305.59M).

ARQQ reports more revenue ($530.00K vs $38.88K for HQ, latest fiscal year).

On cash runway — the metric that decides who needs to raise money first — HQ is stronger (86mo vs 8mo).

ARQQ vs HQ Performance (% return, all start at 0%)
4/135/126/107/138/119/10-115%+0%+115%+230%+345%
HQ+81.9%ARQQ+70.3%
MetricARQQArqit QuantumHQHorizon Quantum
Market
Price$18.43$16.31
Market Cap$305.59M$880.28M
1Y Return-65.8%—
52W High$61.11$45.00
52W Low$11.52$8.29
Financials
Revenue (latest FY)$530.00K$38.88K
Revenue YoY+80.9%—
Net Income-$35.34M-$17.94M
Cash & Equivalents$28.86M$113.25M
Cash Runway8mo86mo
Risk
Going Concern FlagNoNo
ATM Offerings (dilution)263
Daily Short Vol %53.9%53.2%
Beta (1Y vs SPY)1.961.12
Government & Research
Federal Awards Total——
Academic Citations——
Patents——
Quantum Technology
Physical Qubits——
Qubit Modality—Software-Defined (Hardware-Agnostic)
2Q Gate Fidelity——
Cloud PlatformsSKA-Platform (SaaS), SKA-PI (Private Instance)Triple Alpha IDE (own platform), Rigetti Novera QPU testbed (Singapore HQ)
Roadmap TargetGlobal enterprise and telco rollout via SKA-CC for MSPs and sovereign private deploymentsTriple Alpha early access launched on Ember-1 in Q2 2026; full-stack enterprise quantum application platform 2026–2027
Company
Founded20172018
HeadquartersLondon, UKSingapore
Employees87—
Company DNA0–100 rank vs all tracked stocks · missing data = 0
MomentumScaleRevenueRunwayGov $Research

Momentum = 1Y return · Scale = market cap · Runway capped at 36mo · Gov $ = federal awards · Research = citations + patents. Dollar axes use log scale.

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ARQQ vs HQ FAQ

Is ARQQ or HQ the bigger company?

HQ is larger, with a market cap of $880.28M versus $305.59M for ARQQ.

Which has the longer cash runway, ARQQ or HQ?

ARQQ's cash runway is 8mo and HQ's is 86mo (current cash ÷ trailing-twelve-month operating burn; "CF+" means cash-flow positive).

What technology do ARQQ and HQ use?

Arqit Quantum (ARQQ): Quantum Security. Horizon Quantum (HQ): Software-Defined (Hardware-Agnostic). Qubit counts are not directly comparable across different modalities.

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