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QSI vs HQ: Which Quantum Stock Is Better?

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

Direct verdict: QSI 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 $1.05B market cap, about 6.3× the size of QSI ($167.46M).

QSI reports more revenue ($2.44M 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 15mo).

QSI vs HQ Performance (% return, all start at 0%)
2/263/274/285/276/267/28-100%+0%+100%+200%+300%
HQ+102.3%QSI-17.3%
MetricQSIQuantum-SiHQHorizon Quantum
Market
Price$0.7690$19.44
Market Cap$167.46M$1.05B
1Y Return-32.5%—
52W High$3.10$45.00
52W Low$0.69$8.29
Financials
Revenue (latest FY)$2.44M$38.88K
Revenue YoY-20.3%—
Net Income-$101.34M-$17.94M
Cash & Equivalents$111.78M$113.25M
Cash Runway15mo86mo
Risk
Going Concern FlagNoNo
ATM Offerings (dilution)293
Daily Short Vol %37.6%47.5%
Beta (1Y vs SPY)1.421.01
Government & Research
Federal Awards Total$381.06K—
Academic Citations——
Patents——
Quantum Technology
Physical Qubits——
Qubit Modality—Software-Defined (Hardware-Agnostic)
2Q Gate Fidelity——
Cloud Platforms—Triple Alpha IDE (own platform), Rigetti Novera QPU testbed (Singapore HQ)
Roadmap TargetProteus commercial launch Q2 2027 (18+ amino acids, ~1,000× throughput); 20 of 20 amino acids by 2027Triple Alpha testbed access for developers 2026; full-stack enterprise quantum application platform 2026–2027
Company
Founded20172018
HeadquartersGuilford, CTSingapore
Employees145—
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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QSI vs HQ FAQ

Is QSI or HQ the bigger company?

HQ is larger, with a market cap of $1.05B versus $167.46M for QSI.

Which has the longer cash runway, QSI or HQ?

QSI's cash runway is 15mo and HQ's is 86mo (current cash ÷ trailing-twelve-month operating burn; "CF+" means cash-flow positive).

What technology do QSI and HQ use?

Quantum-Si (QSI): Quantum Biology. Horizon Quantum (HQ): Software-Defined (Hardware-Agnostic). Qubit counts are not directly comparable across different modalities.

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