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Unusual Option Volume

AMPH Amphastar Pharmaceuticals25.29+1.67 (+7.1%)

Amphastar Pharmaceuticals trades 6,054 contracts. The highest volume is in the 16-Oct-26 30 calls, which is 18.6% above the current price.
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Upcoming Earnings

AMPH Amphastar Pharmaceuticals20.240.00 (0.0%)

Amphastar Pharmaceuticals will report earnings after the market closes. View Calendar The market is expecting a ±11.5% move after earnings are reported. The average move for the past 4 quarters of earnings has been ±13.9%. View Expected Move (Conf Call: Aug 6 5:00 PM)
AMPH #AmphastarPharmaceuticals stock declines -15.9% in premarket,

Premarket Decliner

AMPH Amphastar Pharmaceuticals24.03+0.13+0.5%

Premarket:20.20-3.83 (-15.9%)

Amphastar Pharmaceuticals Reports Financial Results for the Three Months Ended March 31, 2026

ACCESS NewswireThu, 7-May 4:05 PM
Upcoming Earnings

AMPH Amphastar Pharmaceuticals24.05+0.15 (+0.6%)

Amphastar Pharmaceuticals will report earnings after the market closes. View Calendar The market is expecting a ±5.0% move after earnings are reported. The average move for the past 4 quarters of earnings has been ±8.9%. View Expected Move (Conf Call: May 7 5:00 PM)
Upcoming Earnings

AMPH Amphastar Pharmaceuticals27.55-0.42 (-1.5%)

Amphastar Pharmaceuticals will report earnings after the market closes. View Calendar The market is expecting a ±9.2% move after earnings are reported. The average move for the past 4 quarters of earnings has been ±5.4%. View Expected Move (Conf Call: Feb 26 5:00 PM)
Unusual Option Volume

AMPH Amphastar Pharmaceuticals27.34-1.25 (-4.4%)

Amphastar Pharmaceuticals trades 2,197 contracts. The highest volume is in the 18-Jun-26 35 calls, which is 28.0% above the current price.
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