Quest Diagnostics Inc vs Regeneron Pharmaceuticals Inc — how do they compare? Quest Diagnostics Inc trades at $237.51 (market cap $26.23B), while Regeneron Pharmaceuticals Inc trades at $796.38 (market cap $83.19B). The key difference: Regeneron Pharmaceuticals Inc is far larger — about 3.2× 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.
| DGX | REGN | |
|---|---|---|
Market Cap | $26.23B | $83.19B |
Sector | Health | Health |
52-Week High | $238.50 | $812.27 |
52-Week Low | $173.49 | $555.51 |
Enterprise Value | $31.99B | $77.90B |
Dividend Yield | 1.45% | 0.47% |
Signals from Pluang's Aura AI — not financial advice
Quest Diagnostics (DGX) trades at $238.35, down slightly by 0.06% today, but maintains a bullish technical trend with strong earnings momentum, having beaten EPS estimates in the last three quarters. Revenue grew to $11.04 billion in 2025, with net income reaching $992 million, and the company raised its 2026 outlook amid surging testing demand. Analyst consensus is a Buy with a $249.50 price target, though valuation multiples like a P/E of 25.3 suggest premium pricing.
The outlook for DGX is positive due to robust demand for diagnostic services, AI integration, and partnerships driving growth, but risks include margin pressure from lower-margin deals and high debt levels. Investors may find opportunity in sustained earnings beats and dividend payouts, yet should monitor competitive and cost pressures that could affect profitability.
Regeneron Pharmaceuticals (REGN) trades at $784.36, up 1.59% today, with a bullish technical signal from moving averages but overbought RSI readings. The company shows strong profitability with a net income margin of 27.86% and has beaten EPS estimates in recent quarters. However, multiple class-action lawsuits filed in August 2026 allege inadequate clinical-trial risk disclosures, creating investor uncertainty amid solid financial performance.
Outlook remains supported by earnings momentum and analyst buy ratings, but legal risks and high valuation multiples pose near-term headwinds. Investment opportunity hinges on legal resolution and sustained drug pipeline success, while risks include trial setbacks and regulatory scrutiny.
Trailing returns across standard periods
Latest headlines on both assets
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 →Regeneron Pharmaceuticals discovers, develops, and commercializes products that fight eye disease, cardiovascular disease, cancer, and inflammation. The company has several marketed products, including Eylea, approved for wet age-related macular degeneration and other eye diseases
Read more on REGN →