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 $360.3 (market cap $9.43B), while Quest Diagnostics Inc trades at $237.95 (market cap $26.21B). 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 1.45% 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 | $9.43B | $26.21B |
Sector | Health | Health |
52-Week High | $356.25 | $238.50 |
52-Week Low | $241.71 | $173.49 |
Enterprise Value | $9.18B | $31.97B |
Dividend Yield | — | 1.45% |
Signals from Pluang's Aura AI — not financial advice
Bio-Rad Laboratories (BIO) trades at $357.58, up 0.86% today, near its 52-week high. The stock shows a bullish technical trend with strong moving average signals, though oscillators indicate overbought conditions. Fundamentally, the company reported a Q2 2026 earnings beat with EPS of $2.62 versus $1.75 expected, and net income for 2025 reached $759.9 million, a significant recovery from prior years. Analyst sentiment is positive with a consensus buy rating and a $350 price target, though the P/E ratio of 43.39 suggests a premium valuation.
The outlook for BIO is cautiously optimistic, driven by earnings momentum and improving cash flow, but risks include high valuation, competitive pressures in life sciences, and reliance on academic research markets. Upside potential exists if international revenue trends strengthen, but investors should monitor margin sustainability and debt levels, which have improved but remain a focus.
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.
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 →