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Compare Amphastar Pharmaceuticals Inc (AMPH) vs Aterian Inc (ATER) Price & Performance

Amphastar Pharmaceuticals Inc
Aterian Inc

Price performance

Price movement over the last 24 hours

Key statistics

Amphastar Pharmaceuticals Inc vs Aterian Inc — how do they compare? Amphastar Pharmaceuticals Inc trades at $18.72 (market cap $826.08M), while Aterian Inc trades at $1.14 (market cap $12.44M). The key difference: Amphastar Pharmaceuticals Inc is far larger — about 66.4× Aterian Inc's market cap, and Aterian Inc is trading nearer its 52-week high, Amphastar Pharmaceuticals Inc nearer its low. Which is the better fit depends on your goals.

AMPHATER
Market Cap
$826.08M$12.44M
Sector
HealthConsumer Cyclical
52-Week High
$30.81$1.45
52-Week Low
$16.87$0.54
Enterprise Value
$1.22B$13.02M

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.

Aterian Inc

Aterian (ATER) trades at $1.15, down 3.36% with a bullish technical signal despite negative profitability. Revenue has declined from $221M in 2022 to $69M in 2025, with net losses narrowing but persisting. The company is pursuing an asset sale, with proxy advisors recommending stockholders vote for transactions expected to return $0.85-$1.14 per share. Analyst sentiment is split evenly between Buy and Hold ratings.

The outlook hinges on the successful asset sale providing shareholder returns, but fundamental challenges remain with sustained losses and cash burn. Investment opportunity exists in the potential special dividend, while risks include ongoing operational losses and competitive pressures in consumer products.

Returns comparison

Trailing returns across standard periods

Top news

Latest headlines on both assets

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 Aterian Inc

Aterian Inc is a technology-enabled consumer products company. Its product categories include home and kitchen appliances, kitchenware, environmental appliances (dehumidifiers and air conditioners), beauty-related products, and consumer electronics. It has various owned and operated brands include Vremi, Healing Solutions, Xtava, TRUWEO, Spiralize, Pohl+Schmitt, and RIF6. The company generates revenue through the online sales of various consumer products that are sold online.

Read more on ATER