AMPH: Amphastar Pharmaceuticals Inc.

As of Friday, May 1st, 2026

$ 21.88

-0.08 -0.36%

Open: 21.98
High: 22.26
Low: 21.64
Volume: 353,175
Previous Close on Thursday, April 30th, 2026

$ 21.96

+0.33 +1.53%

Open: 21.63
High: 22.36
Low: 21.57
Volume: 407,242

Historical Data

Date Open High Low Close Volume Chg %Chg
2026-05-01 21.98 22.26 21.64 21.88 353,175 -0.08 -0.36
2026-04-30 21.63 22.36 21.57 21.96 407,242 +0.33 +1.53
2026-04-29 21.50 21.86 21.48 21.63 268,682 -0.19 -0.87
2026-04-28 21.71 22.04 21.56 21.82 281,196 +0.17 +0.79
2026-04-27 21.47 22.06 21.46 21.65 329,586 +0.24 +1.12
2026-04-24 21.05 21.60 20.77 21.41 402,069 +0.40 +1.90
2026-04-23 21.22 21.23 20.77 21.01 297,904 +0.02 +0.10
2026-04-22 21.40 21.59 20.77 20.99 410,625 -0.22 -1.04
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Metrics and Technicals

Period High Low Chg %Chg Max Drawdown SMA
Peak Trough %Loss
Period High Low Chg %Chg MDD SMA
5D 22.36
On 2026-04-30		 21.46
On 2026-04-27		 0.47 2.20 22.36
On 2026-04-30		 21.64
On 2026-05-01		 -3.24 21.79
10D 23.26
On 2026-04-20		 20.77
On 2026-04-22		 -1.00 -4.37 23.26
On 2026-04-20		 20.77
On 2026-04-22		 -10.73 21.65
20D 23.26
On 2026-04-20		 20.04
On 2026-04-06		 1.43 6.99 23.26
On 2026-04-20		 20.77
On 2026-04-22		 -10.73 21.42
WTD 22.36
On 2026-04-30		 21.46
On 2026-04-27		 0.47 2.20 22.36
On 2026-04-30		 21.64
On 2026-05-01		 -3.24 21.79
MTD 22.26
On 2026-05-01		 21.64
On 2026-05-01		 -0.08 -0.36 -- -- -- 21.88
As of Friday, May 1st, 2026
 
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AMPH

Amphastar Pharmaceuticals Inc.

21.88 -0.08 -0.36 353,175