Arqit Quantum Inc vs Quantum Computing Inc — how do they compare? Arqit Quantum Inc trades at $23.52 (market cap $424.79M), while Quantum Computing Inc trades at $8.89 (market cap $2.03B). The key difference: Quantum Computing Inc is far larger — about 4.8× Arqit Quantum Inc's market cap, and Arqit Quantum Inc is trading nearer its 52-week high, Quantum Computing Inc nearer its low. Which is the better fit depends on your goals.
| ARQQ | QUBT | |
|---|---|---|
Market Cap | $424.79M | $2.03B |
Sector | Technology | Technology |
52-Week High | $58.27 | $24.62 |
52-Week Low | $11.78 | $6.31 |
Enterprise Value | $398.10M | $1.09B |
Signals from Pluang's Aura AI — not financial advice
ARQQ trades at $23.72, up 4.91% today, with a bullish technical signal from moving averages despite overbought RSI readings. The company shows explosive revenue growth but deep losses, with a P/S ratio of 352.9 reflecting high growth expectations. Recent news highlights a proof-of-concept with nLighten and strong H1 2026 revenue growth of 829% year-over-year, signaling commercial traction in quantum-safe encryption.
Outlook hinges on scaling revenue to offset high costs, with analyst sentiment split evenly between Buy and Hold. Key risks include sustained cash burn and competitive pressure, but government and telecom deals offer upside if execution improves.
Quantum Computing Inc. (QUBT) trades at $8.92, down slightly by 0.11% on the day, with a bearish technical signal. The company is in a high-growth but pre-profit phase, reporting Q2 2026 revenue of $5.6 million (MarketBeat, 2026-08-10), a significant increase, but with persistent net losses. Analyst sentiment is positive with a 75% buy rating and a consensus price target of $18.50, indicating substantial upside potential from current levels.
The outlook for QUBT is speculative, offering high growth potential in quantum computing and photonics, supported by strong institutional interest and revenue expansion. Key risks include steep valuation (P/S of 189.05), ongoing losses, high cash burn, and competitive pressures in the emerging quantum sector, requiring careful risk assessment by investors.
Trailing returns across standard periods
Latest headlines on both assets
Arqit Quantum provides advanced cybersecurity software that uses symmetric key agreement technology. Its solutions protect networked devices and data against current and future cyber threats, including quantum attacks.
Read more on ARQQ →Quantum Computing Inc. is a company focused on providing accessible quantum computing and quantum-enhanced software solutions for complex problems. The company's technology is designed to run on both classical and quantum hardware, enabling businesses to explore the power of quantum computing today for applications in finance, drug discovery, and logistics. QUBT offers a platform that makes quantum algorithms and software available through the cloud, aiming to democratize access to this advanced computing paradigm.
Read more on QUBT →