Amphastar Pharmaceuticals Inc vs Vertex Pharmaceuticals Incorporated — how do they compare? Amphastar Pharmaceuticals Inc trades at $18.74 (market cap $826.08M), while Vertex Pharmaceuticals Incorporated trades at $487 (market cap $123.19B). The key difference: Vertex Pharmaceuticals Incorporated is far larger — about 149.1× Amphastar Pharmaceuticals Inc's market cap, and Vertex Pharmaceuticals Incorporated is trading nearer its 52-week high, Amphastar Pharmaceuticals Inc nearer its low. Which is the better fit depends on your goals.
| AMPH | VRTX | |
|---|---|---|
Market Cap | $826.08M | $123.19B |
Sector | Health | Health |
52-Week High | $30.81 | $529.59 |
52-Week Low | $16.87 | $366.54 |
Enterprise Value | $1.22B | $117.93B |
Signals from Pluang's Aura AI — not financial advice
AMPH trades at $18.72, down 1.58% with bearish technical signals despite oversold RSI readings. The company reported mixed Q1 2026 results with EPS of $0.42 missing estimates of $0.70, continuing a trend of recent earnings disappointments. Valuation metrics appear reasonable with P/E of 11.29 and P/B of 1.07, while profitability remains solid with 47.34% gross margins. Recent news includes a Zacks Strong Sell rating and ongoing securities law investigation.
The stock faces near-term headwinds from earnings misses and negative analyst sentiment, though current valuations provide some downside protection. Upside potential exists if the company can execute its strategic pivot to proprietary drugs and biosimilars while managing BAQSIMI discount pressures. Key risks include ongoing legal scrutiny and competitive pressures in the generic drug market.
Vertex Pharmaceuticals (VRTX) trades at $485.39, down 2.24% today but maintains a bullish technical trend with strong support at $486. The company reported robust 2025 results with $12.00B revenue and $3.95B net income, though margins dipped slightly. Recent news highlights a strategic $10B acquisition of Crinetics Pharmaceuticals, expanding its endocrinology portfolio with potential $5B peak sales. Analyst consensus remains strongly bullish with an 83.9% buy rating and $526.50 price target.
Outlook is positive driven by earnings growth and strategic acquisitions, but risks include integration challenges from the Crinetics deal and reliance on cystic fibrosis treatments. The stock offers upside to consensus targets but faces volatility near-term.
Trailing returns across standard periods
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 →Vertex Pharmaceuticals is a global biotechnology company that discovers and develops small-molecule drugs for the treatment of serious diseases. Its key drugs are Kalydeco, Orkambi, Symdeko, and Trikafta/Kaftrio for cystic fibrosis, where Vertex therapies remain the standard of care globally. In addition to its focus on cystic fibrosis, Vertex is diversifying its pipeline through gene-editing therapies such as CTX001 for beta-thalassemia and sickle-cell disease, small-molecule inhibitors targeting acute and chronic pain using non-opioid treatments, and small-molecule inhibitors of APOL1-mediated kidney diseases. Vertex is also investigating cell therapies to deliver a potential functional cure for type 1 diabetes.
Read more on VRTX →