Compare Amphastar Pharmaceuticals Inc (AMPH) vs Quest Diagnostics Inc (DGX) Price & Performance
Price performance (Past 24H)
Key statistics
Key statistics
Amphastar Pharmaceuticals Inc vs Quest Diagnostics Inc — how do they compare? Amphastar Pharmaceuticals Inc trades at $20.39 (market cap $863.95M), while Quest Diagnostics Inc trades at $237.51 (market cap $26.23B). The key difference: Quest Diagnostics Inc is far larger — about 30.4× Amphastar Pharmaceuticals Inc's market cap, and Quest Diagnostics Inc pays a 1.45% dividend while Amphastar Pharmaceuticals Inc pays none. Which is the better fit depends on your goals.
| AMPH | DGX | |
|---|---|---|
Market Cap | $863.95M | $26.23B |
Sector | Health | Health |
52-Week High | $30.81 | $238.50 |
52-Week Low | $16.87 | $173.49 |
Enterprise Value | $1.26B | $31.99B |
Dividend Yield | — | 1.45% |
Aura AI Summary
Signals from Pluang's Aura AI — not financial advice
Aura AI Summary
Signals from Pluang's Aura AI — not financial advice
AMPH trades at $20.78, up 4.9% today, with a bullish technical signal supported by moving averages. The stock shows mixed earnings performance with Q2 2026 beating estimates but Q1 and Q4 2025 missing. Fundamentals remain solid with a 10.76% net margin and reasonable valuation at 12.02 P/E. Recent news highlights Q2 2026 results and strategic shift toward proprietary drugs.
Outlook is cautiously optimistic with growth supported by new product launches, though regulatory risks and earnings volatility pose challenges. Analyst sentiment is mixed with 25% buy ratings but majority hold recommendations. The stock offers value but requires monitoring of FDA developments and earnings consistency.
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.
Returns comparison
Trailing returns across standard periods
Returns comparison
Trailing returns across standard periods
About Amphastar Pharmaceuticals Inc
Amphastar is a specialty pharmaceutical company that develops and markets injectable, intranasal, and inhalation products. Its portfolio includes both complex generic drugs and proprietary delivery systems.
Read more on AMPH →About Quest Diagnostics Inc
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 →
