Amphastar Pharmaceuticals Inc vs Regeneron Pharmaceuticals Inc — how do they compare? Amphastar Pharmaceuticals Inc trades at $18.72 (market cap $826.08M), while Regeneron Pharmaceuticals Inc trades at $664.52 (market cap $69.67B). The key difference: Regeneron Pharmaceuticals Inc is far larger — about 84.3× Amphastar Pharmaceuticals Inc's market cap, and Regeneron Pharmaceuticals Inc pays a 0.57% dividend while Amphastar Pharmaceuticals Inc pays none. Which is the better fit depends on your goals.
| AMPH | REGN | |
|---|---|---|
Market Cap | $826.08M | $69.67B |
Sector | Health | Health |
52-Week High | $30.81 | $812.27 |
52-Week Low | $16.87 | $542.52 |
Enterprise Value | $1.22B | $63.62B |
Dividend Yield | — | 0.57% |
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.
Regeneron (REGN) trades at $664.52, down 0.54% on the day, with a bullish technical signal from moving averages but overbought RSI readings. The company maintains strong fundamentals with a P/E of 16.22, net income margin of 29.65%, and consistent earnings beats. Recent FDA acceptance for cemdisiran review and inclusion in a manufacturing facility pilot program highlight positive developments. Cash flow improved in 2025 with net cash flow of $634.70 million.
Outlook remains positive with a consensus price target of $764.50, implying 15% upside, supported by 69% analyst buy ratings. Risks include regulatory hurdles, competitive pressures, and dependence on key drug performance. The stock presents a compelling opportunity for growth investors given its valuation and pipeline progress, though near-term volatility may persist around earnings.
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 →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 →