ASE Technology Holding Co Ltd vs Quest Diagnostics Inc — how do they compare? ASE Technology Holding Co Ltd trades at $39.28 (market cap $85.75B), while Quest Diagnostics Inc trades at $237.51 (market cap $26.21B). The key difference: ASE Technology Holding Co Ltd is far larger — about 3.3× Quest Diagnostics Inc's market cap, and Quest Diagnostics Inc pays the higher dividend (1.45%). Which is the better fit depends on your goals.
| ASX | DGX | |
|---|---|---|
Market Cap | $85.75B | $26.21B |
Sector | Technology | Health |
52-Week High | $45.12 | $238.50 |
52-Week Low | $9.63 | $173.49 |
Enterprise Value | $90.15B | $31.97B |
Dividend Yield | 1.08% | 1.45% |
Signals from Pluang's Aura AI — not financial advice
ASE Technology Holding (ASX) trades at $39.56, up 5.23% today, showing strong momentum with three consecutive earnings beats. The stock maintains bullish technical signals with support at $38 and resistance at $40. Recent Q2 2026 results demonstrated robust growth in AI-driven semiconductor packaging demand, with the company increasing 2026 capital expenditure to $10.5 billion to expand capacity.
Outlook remains positive with 80% analyst buy ratings and projected revenue growth to $711.2 billion in 2026. Key risks include high valuation multiples (P/E 47.78) and significant capital investment requirements. The AI semiconductor boom provides substantial growth opportunity, though execution on expansion plans will be critical for sustained performance.
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.
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ASE Technology Holding Co Ltd is a semiconductor assembly and testing firm. The company operates in segments: Packaging, Testing, and Electronic Manufacturing Services. Of these, packaging services contribute the most revenue. It involves packaging bare semiconductors into completed semiconductors with improved electrical and thermal characteristics. The Testing Segment includes front-end engineering testing, wafer probing, and final testing services. In the EMS segment, the company designs manufacture and sells electronic components and telecommunication equipment motherboards. The company is based in Taiwan but garners over half its sales from firms in the United States.
Read more on ASX →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 →