Quest Diagnostics Inc vs Teradyne, Inc. — how do they compare? Quest Diagnostics Inc trades at $205.45 (market cap $22.80B), while Teradyne, Inc. trades at $359.6 (market cap $55.30B). The key difference: Teradyne, Inc. is far larger — about 2.4× Quest Diagnostics Inc's market cap, and Quest Diagnostics Inc pays the higher dividend (1.67%). Which is the better fit depends on your goals.
| DGX | TER | |
|---|---|---|
Market Cap | $22.80B | $55.30B |
Sector | Health | Technology |
52-Week High | $216.02 | $483.84 |
52-Week Low | $166.42 | $90.15 |
Enterprise Value | $28.82B | $55.13B |
Dividend Yield | 1.67% | 0.15% |
Signals from Pluang's Aura AI — not financial advice
Quest Diagnostics (DGX) trades at $207.35, showing minimal daily movement with a slight decline of 0.04%. The stock maintains a bullish technical stance with recent earnings beats and analyst consensus pointing to upside potential. Recent developments include New York State approval for Haystack MRD testing and strong momentum across diagnostic channels. Revenue growth accelerated to $11.04 billion in 2025 with consistent profitability margins around 9%.
DGX presents a balanced investment case with 38% analyst buy ratings and a $227.75 price target suggesting 10% upside. The company demonstrates steady revenue growth and operational efficiency, though elevated debt levels and policy risks require monitoring. Second quarter earnings on July 23, 2026, will be crucial for validating current momentum and growth trajectory.
Teradyne (TER) trades at $341.11, down 5.14% over 24 hours, with a bearish technical signal. The stock shows strong fundamentals with three consecutive quarterly earnings beats and robust profitability margins. Recent news highlights AI-driven demand boosting semiconductor testing revenue, positioning TER as a key player in robotics and AI infrastructure. Cash flow trends indicate consistent operational strength despite negative net cash flow from aggressive investing activities.
Outlook remains positive with a consensus price target of $453.60, implying 33% upside. Risks include high valuation multiples and semiconductor cycle volatility. Analyst sentiment is strongly bullish with 64.5% buy ratings, supported by expanding AI and data center markets driving long-term growth potential.
Trailing returns across standard periods
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 →Teradyne provides testing equipment, including automated test equipment for semiconductors, system testing for hard disk drives, circuit boards, and electronics systems and wireless testing for devices. The firm entered the industrial automation market in 2015, into which it sells collaborative and autonomous robots for factory applications. Teradyne serves numerous end markets and geographies directly and indirectly with its products, but its most significant exposure is to semiconductor testing, which made up 71% of 2021 sales. Teradyne serves vertically integrated, fabless, and foundry chipmakers with its equipment.
Read more on TER →