Amphastar Pharmaceuticals, Inc. (AMPH Quick QuoteAMPH - Free Report) was a big mover last session, as the company saw its shares rise almost 10% on the day. The move came on solid volume too with far more shares changing hands than in a normal session. This continues the recent uptrend for the company—as the stock is now up 11.9% in the past one-month time frame.

The company has seen two negative estimate revisions in the last one month, while its Zacks Consensus Estimate for the current quarter has also moved lower over the same time period, suggesting there may be trouble down the road. So, make sure to keep an eye on this stock going forward, to see if this recent move higher can last.

Amphastar currently has a Zacks Rank #3 (Hold) while its Earnings ESP is 0.00%.  

A better-ranked stock in the same sector is Corium International, Inc. , holding a Zacks Rank #2 (Buy).

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