Price movement over the last 24 hours
Adaptive Biotechnologies Corp vs Amphastar Pharmaceuticals Inc — how do they compare? Adaptive Biotechnologies Corp trades at $20.19 (market cap $3.33B), while Amphastar Pharmaceuticals Inc trades at $18.81 (market cap $885.83M). The key difference: Adaptive Biotechnologies Corp is far larger — about 3.8× Amphastar Pharmaceuticals Inc's market cap, and Adaptive Biotechnologies Corp is trading nearer its 52-week high, Amphastar Pharmaceuticals Inc nearer its low. Which is the better fit depends on your goals.
| ADPT | AMPH | |
|---|---|---|
Market Cap | $3.33B | $885.83M |
Sector | Health | Health |
52-Week High | $22.37 | $30.81 |
52-Week Low | $10.24 | $16.87 |
Enterprise Value | $3.19B | $1.28B |
Signals from Pluang's Aura AI — not financial advice
ADPT trades at $20.82, down 1.75% today, with a bullish technical signal from moving averages and a consensus analyst price target of $20.40. The company announced a strategic separation of its MRD and Immune Medicine businesses in June 2026, alongside a $300 million convertible notes offering to enhance financial flexibility. Revenue grew to $277 million in 2025, though net losses persist at -$59.50 million, with improving margins and cash flow trends showing net positive cash generation of $22.37 million.
Outlook remains cautiously optimistic as the business split aims to unlock value, but execution risks and sustained profitability challenges pose headwinds. Analysts are predominantly bullish (64.71% buy ratings), citing growth in the clonoSEQ MRD segment, yet the stock faces volatility from high valuation multiples and insider selling activity.
AMPH trades at $19.61, down 0.15% with a bearish technical outlook. The stock shows mixed fundamentals with a P/E of 11.81 and net margin of 11%, but recent earnings misses and declining 2026 profit projections raise concerns. Recent news includes a Zacks Strong Sell rating and a securities law investigation, while management focuses on transitioning to proprietary drugs for growth.
The outlook remains cautious with analyst consensus at Hold (66.7%) and a $20.40 price target offering limited upside. Key risks include earnings volatility, competitive pressures, and legal scrutiny. The stock presents moderate value but requires careful monitoring of execution on growth initiatives and upcoming Q2 earnings.
Trailing returns across standard periods
Adaptive Biotechnologies Corp is a commercial-stage company advancing the field of immune-driven medicine by harnessing the inherent biology of the adaptive immune system to transform the diagnosis and treatment of disease. Its clinical diagnostic product, clonoSEQ, is test authorized by the FDA for the detection and monitoring of minimal residual disease in patients with select blood cancers.
Read more on ADPT →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 →