Arqit Quantum Inc vs IONQ Inc — how do they compare? Arqit Quantum Inc trades at $23.52 (market cap $424.79M), while IONQ Inc trades at $44.93 (market cap $17.60B). The key difference: IONQ Inc is far larger — about 41.4× Arqit Quantum Inc's market cap. Which is the better fit depends on your goals.
| ARQQ | IONQ | |
|---|---|---|
Market Cap | $424.79M | $17.60B |
Sector | Technology | Technology |
52-Week High | $58.27 | $82.09 |
52-Week Low | $11.78 | $26.59 |
Enterprise Value | $398.10M | $15.53B |
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.
IONQ trades at $45.20, up 6.28% today, with a bullish technical signal from moving averages and strong resistance near $46. The company reported Q2 2026 revenue growth of 287% to $80.1 million, though it missed EPS estimates. Analyst consensus is a Buy with a $73.33 price target, reflecting optimism on quantum computing leadership.
Outlook is growth-driven but high-risk; revenue is projected to double in 2026, yet net losses exceed $1.4 billion. Key risks include profitability timeline, cash burn, and competitive pressures. Upside hinges on execution of its quantum roadmap and defense contracts, but volatility persists.
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 →IonQ is a leader in quantum computing, developing world-class quantum systems. Its technology aims to solve complex problems across finance, healthcare, and materials science that are beyond classical computers.
Read more on IONQ →