Compare Arqit Quantum Inc (ARQQ) vs Quest Diagnostics Inc (DGX) Price & Performance
Price performance (Past 24H)
Key statistics
Key statistics
Arqit Quantum Inc vs Quest Diagnostics Inc — how do they compare? Arqit Quantum Inc trades at $23.9 (market cap $424.79M), while Quest Diagnostics Inc trades at $237.92 (market cap $26.21B). The key difference: Quest Diagnostics Inc is far larger — about 61.7× Arqit Quantum Inc's market cap, and Quest Diagnostics Inc pays a 1.45% dividend while Arqit Quantum Inc pays none. Which is the better fit depends on your goals.
| ARQQ | DGX | |
|---|---|---|
Market Cap | $424.79M | $26.21B |
Sector | Technology | Health |
52-Week High | $58.27 | $238.50 |
52-Week Low | $11.78 | $173.49 |
Enterprise Value | $398.10M | $31.97B |
Dividend Yield | — | 1.45% |
Aura AI Summary
Signals from Pluang's Aura AI — not financial advice
Aura AI Summary
Signals from Pluang's Aura AI — not financial advice
ARQQ trades at $23.70, up 4.82% today, with a bullish technical signal from moving averages and ADX. The stock shows extreme valuation metrics with a P/S of 352.9 and P/B of 14.9, while fundamentals reveal severe losses: Q1 2026 EPS missed at -$1.99, net income margin is -4,508.1%, and revenue remains minimal at $530K for 2025. Recent news highlights a proof of concept with nLighten and 829% YoY revenue growth in H1 FY26, signaling potential commercial traction in quantum-safe encryption.
Outlook hinges on scaling revenue to justify valuation, with risks from persistent cash burn and high SG&A. Analyst sentiment is split 50/50 buy/hold, reflecting optimism for government/telecom contracts against financial distress. The stock faces volatility near resistance at $25, requiring sustained growth to support bullish momentum.
Quest Diagnostics (DGX) trades at $237.24, down 0.16% on the day, with a bullish technical signal from moving averages. The company reported strong Q2 2026 earnings, beating estimates with EPS of $3.12 and raising its full-year outlook, driven by robust testing demand. Revenue grew to $11.04B in 2025, with net income of $992M, though margins face pressure from lower-margin deals and rising costs.
The outlook is positive due to raised guidance and AI integration enhancing efficiency, but risks include debt levels and margin compression. Analysts maintain a cautious buy stance with a $249.50 price target, indicating modest upside potential from current levels amid competitive and cost challenges.
Returns comparison
Trailing returns across standard periods
Returns comparison
Trailing returns across standard periods
About Arqit Quantum Inc
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 →About Quest Diagnostics Inc
Quest Diagnostics is a leading independent provider of diagnostic testing, information, and services in the U.S. The company generates over 95% of its revenue through clinical testing, anatomic pathology, esoteric testing, and substance abuse testing with specimens collected at its national network of roughly 2,300 patient service centers, as well as multiple doctors offices and hospitals. The firm also runs a much smaller diagnostic solutions segment that provides clinical trials testing, risk assessment services, and information technology solutions.
Read more on DGX →
