Price movement over the last 24 hours
Arqit Quantum Inc vs Plug Power Inc — how do they compare? Arqit Quantum Inc trades at $18.86 (market cap $332.04M), while Plug Power Inc trades at $2.21 (market cap $3.11B). The key difference: Plug Power Inc is far larger — about 9.4× Arqit Quantum Inc's market cap, and Plug Power Inc is trading nearer its 52-week high, Arqit Quantum Inc nearer its low. Which is the better fit depends on your goals.
| ARQQ | PLUG | |
|---|---|---|
Market Cap | $332.04M | $3.11B |
Sector | Technology | Industrials |
52-Week High | $58.27 | $4.14 |
52-Week Low | $11.78 | $1.40 |
Enterprise Value | $305.35M | $3.90B |
Signals from Pluang's Aura AI — not financial advice
ARQQ trades at $19.08, down 6.79% today, with a bearish technical signal from moving averages. The company reported $530K revenue for 2025 but a net loss of $35.34M, with negative profit margins and high valuation ratios. Recent news highlights contract wins and 829% YoY revenue growth in H1 FY26, though earnings misses persist.
Outlook remains speculative given deep losses and high P/S of 275.84, but growth in quantum security deals offers potential. Key risks include cash burn and competitive threats. Analyst consensus is split 50/50 buy/hold, indicating cautious optimism amid fundamental challenges.
PLUG trades at $2.23, down 6.3% on the day, with a bearish technical signal and negative cash flows. The company reported a net loss of $1.63 billion in 2025 despite revenue of $710 million, with gross profit margin at -25.66%. Recent news includes a 50MW electrolyzer order for the Hunter Valley Hydrogen Hub in Australia, but the stock faces pressure from analyst target cuts and high short interest of 27.4%.
Outlook remains challenged by persistent losses and cash burn, though analyst consensus suggests 31% upside to the $2.92 target. Key risks include delayed profitability targets beyond 2028 and reliance on financing amid negative operating cash flow. The stock's viability hinges on successful project execution and hydrogen market adoption.
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 →Plug Power is building an end-to-end green hydrogen ecosystem—from production, storage and delivery to energy generation. The company plans to build and operate green hydrogen highways across North America and Europe. Plug will deliver its green hydrogen solutions directly to its customers and through joint venture partners into multiple end markets—including material handling, e-mobility, power generation, and industrial applications.
Read more on PLUG →