Investment
Features
FeesSafety
Academy
More
Pluang+

Compare Amphastar Pharmaceuticals Inc (AMPH) vs Charles River Laboratories Intl. Inc (CRL) Price & Performance

Amphastar Pharmaceuticals IncTrade
Charles River Laboratories Intl. IncTrade

Price performance (Past 24H)

Key statistics

Amphastar Pharmaceuticals Inc vs Charles River Laboratories Intl. Inc — how do they compare? Amphastar Pharmaceuticals Inc trades at $18.74 (market cap $826.08M), while Charles River Laboratories Intl. Inc trades at $233.41 (market cap $11.24B). The key difference: Charles River Laboratories Intl. Inc is far larger — about 13.6× Amphastar Pharmaceuticals Inc's market cap, and Charles River Laboratories Intl. Inc is trading nearer its 52-week high, Amphastar Pharmaceuticals Inc nearer its low. Which is the better fit depends on your goals.

AMPHCRL
Market Cap
$826.08M$11.24B
Sector
HealthHealth
52-Week High
$30.81$233.60
52-Week Low
$16.87$145.57
Enterprise Value
$1.22B$14.11B

Aura AI Summary

Signals from Pluang's Aura AI — not financial advice

Amphastar Pharmaceuticals Inc

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.

Charles River Laboratories Intl. Inc

Charles River Laboratories (CRL) trades at $233.41, down slightly by 0.08% today, with a bullish technical signal supported by moving averages. The company shows strong operational cash flow of $737.65M for 2025 but faces profitability challenges with negative net income margin of -4.59% and ROE of -6.02%. Recent earnings have consistently beaten expectations, and analyst consensus remains strongly positive with 72% buy ratings.

CRL presents a mixed investment case: strong cash generation and strategic collaborations like the Lilly TuneLab partnership provide growth catalysts, but negative profitability metrics and high valuation ratios (P/E 684.85) pose risks. The stock's outlook depends on margin improvement and successful execution of recent business initiatives amid competitive pressures.

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 Charles River Laboratories Intl. Inc

Charles River Laboratories was founded in 1947 and is a leading provider of drug discovery and development services. The company's research model & services segment is the leading provider of animal models for laboratory testing, which breeds and delivers animal research models with specific genetic characteristics for preclinical studies around the world. The discovery & safety assessment segment includes services required to take a drug through the early development process, including discovery services. The manufacturing support segment includes microbial solutions, which provides in vitro (non-animal) testing products, biologics testing services, and avian vaccine services.

Read more on CRL