Bio-Rad Laboratories, Inc. Class A Common Stock vs Quest Diagnostics Inc — how do they compare? Bio-Rad Laboratories, Inc. Class A Common Stock trades at $299.54 (market cap $8.04B), while Quest Diagnostics Inc trades at $204.9 (market cap $22.80B). The key difference: Quest Diagnostics Inc is far larger — about 2.8× Bio-Rad Laboratories, Inc. Class A Common Stock's market cap, and Quest Diagnostics Inc pays a 1.67% dividend while Bio-Rad Laboratories, Inc. Class A Common Stock pays none. Which is the better fit depends on your goals.
| BIO | DGX | |
|---|---|---|
Market Cap | $8.04B | $22.80B |
Sector | Health | Health |
52-Week High | $339.75 | $216.02 |
52-Week Low | $241.71 | $166.42 |
Enterprise Value | $7.85B | $28.82B |
Dividend Yield | — | 1.67% |
Signals from Pluang's Aura AI — not financial advice
BIO trades at $297.58, up 0.5% on the day, with a bullish technical signal from moving averages and a consensus analyst price target of $305. The stock shows strong profitability with a 51.87% gross margin and positive net income of $760M in 2025, though recent quarters have seen EPS misses. Cash flow from operations remains robust at $532M, supporting financial stability.
Outlook is cautiously optimistic with analyst support, but risks include earnings volatility and high P/E valuation. The company's return to profitability and solid balance sheet provide a foundation for growth, though investors should monitor execution against future earnings expectations and competitive pressures in the biotech sector.
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.
Trailing returns across standard periods
Bio-Rad Laboratories, headquartered in Hercules, California, develops, manufactures, and markets products and solutions for the clinical diagnostics and life sciences markets. In diagnostics (53% of sales), Bio-Rad manufactures, sells, and supports test systems and specialized quality controls for clinical laboratories. In life sciences (47% of sales), the firm develops and manufactures a range of instruments and reagents used in research, biopharmaceutical production, and food testing. The company is geographically diverse, with major markets in the Americas (42% of 2021 sales), Europe and Africa (33%), and Asia-Pacific (25%). Bio-Rad owns 37% of Sartorius AG, a laboratory and biopharmaceutical supplier.
Read more on BIO →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 →