AMPH: Amphastar Pharmaceuticals Inc.

As of Wednesday, July 29th, 2026

$ 20.58

+0.43 +2.13%

Open: 20.24
High: 20.70
Low: 19.99
Volume: 3,185
Previous Close on Tuesday, July 28th, 2026

$ 20.15

+0.97 +5.06%

Open: 19.38
High: 20.27
Low: 19.38
Volume: 390,836

Historical Data

Date Open High Low Close Volume Chg %Chg
2026-07-29 20.24 20.70 19.99 20.58 3,185 +0.43 +2.13
2026-07-28 19.38 20.27 19.38 20.15 390,836 +0.97 +5.06
2026-07-27 18.97 19.31 18.96 19.18 28,529 +0.46 +2.46
2026-07-24 18.90 19.12 18.50 18.72 445,684 -0.15 -0.79
2026-07-23 19.08 19.34 18.73 18.87 650,429 -0.43 -2.23
2026-07-22 19.71 19.95 19.20 19.30 409,241 -0.29 -1.48
2026-07-21 19.42 19.89 19.42 19.59 619,967 -0.04 -0.20
2026-07-20 19.78 19.91 19.52 19.63 437,415 -0.12 -0.58
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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 20.70
On 2026-07-29		 18.50
On 2026-07-24		 1.28 6.63 19.34
On 2026-07-23		 18.50
On 2026-07-24		 -4.34 19.50
10D 20.70
On 2026-07-29		 18.50
On 2026-07-24		 1.18 6.08 20.35
On 2026-07-17		 18.50
On 2026-07-24		 -9.09 19.56
20D 20.70
On 2026-07-29		 18.41
On 2026-07-14		 0.40 1.98 20.54
On 2026-07-01		 18.41
On 2026-07-14		 -10.35 19.46
WTD 20.70
On 2026-07-29		 18.96
On 2026-07-27		 1.86 9.94 19.31
On 2026-07-27		 19.31
On 2026-07-27		 0.00 19.97
MTD 20.70
On 2026-07-29		 18.41
On 2026-07-14		 0.40 1.98 20.54
On 2026-07-01		 18.41
On 2026-07-14		 -10.35 19.46
As of Wednesday, July 29th, 2026
 
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Recent
Ticker Last Chg %Chg Volume
AMPH

Amphastar Pharmaceuticals Inc.

20.58 +0.43 +2.13 3,185