Arqit Quantum Inc vs Western Digital Corp — how do they compare? Arqit Quantum Inc trades at $23.45 (market cap $424.79M), while Western Digital Corp trades at $456.5 (market cap $150.95B). The key difference: Western Digital Corp is far larger — about 355.4× Arqit Quantum Inc's market cap, and Western Digital Corp pays a 0.14% dividend while Arqit Quantum Inc pays none. Which is the better fit depends on your goals.
| ARQQ | WDC | |
|---|---|---|
Market Cap | $424.79M | $150.95B |
Sector | Technology | Technology |
52-Week High | $58.27 | $746.23 |
52-Week Low | $11.78 | $74.66 |
Enterprise Value | $398.10M | $150.42B |
Dividend Yield | — | 0.14% |
Signals from Pluang's Aura AI — not financial advice
ARQQ trades at $24.10, up 6.59% today, with a bullish technical signal from moving averages. The company shows explosive revenue growth (829% YoY in H1 2026) but remains deeply unprofitable with a -4,508% net margin. Recent news highlights quantum-safe encryption partnerships with telecom and government clients, driving investor optimism despite significant financial losses.
Outlook remains speculative with high risk/reward profile. The quantum security market offers substantial growth potential, but ARQQ must demonstrate path to profitability amid heavy operating losses. Analyst consensus is divided (50% Buy, 50% Hold), reflecting uncertainty about timeline for sustainable operations.
Western Digital (WDC) trades at $454.34, up 3.7% in the last 24 hours, with strong earnings beats in recent quarters and a bullish analyst consensus of 72% buy ratings. The stock faces bearish technical signals but benefits from robust AI-driven storage demand, evidenced by 44% revenue growth in Q4 2026 and a net income margin of 72.95% in 2025. Recent news highlights its positioning as a key player in AI infrastructure, though valuation concerns persist.
The outlook for WDC is positive due to sustained AI storage demand and margin expansion, but risks include high valuation multiples and cyclical industry pressures. With a consensus price target of $665.15, upside potential exists, yet investors should monitor competitive threats and earnings sustainability.
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 →Western Digital is a vertically integrated supplier of data storage solutions, spanning both hard disk drives and solid-state drives. In the HDD market it forms a practical duopoly with Seagate, and it is the largest global producer of NAND flash chips for SSDs in a joint venture with competitor Kioxia.
Read more on WDC →