AMPH: Amphastar Pharmaceuticals Inc.

As of Friday, March 20th, 2026

$ 19.50

-0.04 -0.20%

Open: 19.56
High: 19.76
Low: 19.15
Volume: 1,133,239
Previous Close on Thursday, March 19th, 2026

$ 19.54

+0.54 +2.84%

Open: 19.10
High: 19.82
Low: 19.06
Volume: 582,223

Historical Data

Date Open High Low Close Volume Chg %Chg
2026-03-20 19.56 19.76 19.15 19.50 1,133,239 -0.04 -0.20
2026-03-19 19.10 19.82 19.06 19.54 582,223 +0.54 +2.84
2026-03-18 19.21 19.47 18.97 19.00 650,422 -0.51 -2.61
2026-03-17 19.48 20.00 19.48 19.51 635,569 +0.10 +0.52
2026-03-16 18.93 19.46 18.65 19.41 718,600 +1.23 +6.77
2026-03-13 18.23 18.46 17.81 18.18 604,646 +0.01 +0.03
2026-03-12 18.58 18.58 17.03 18.18 901,668 -0.60 -3.17
2026-03-11 18.91 19.50 18.52 18.77 547,690 -0.14 -0.74
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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 20.00
On 2026-03-17		 18.65
On 2026-03-16		 1.32 7.26 20.00
On 2026-03-17		 18.97
On 2026-03-18		 -5.13 19.39
10D 20.00
On 2026-03-17		 17.03
On 2026-03-12		 0.16 0.83 19.57
On 2026-03-10		 17.03
On 2026-03-12		 -12.98 19.02
20D 28.75
On 2026-02-23		 17.03
On 2026-03-12		 -9.03 -31.65 28.75
On 2026-02-23		 17.03
On 2026-03-12		 -40.77 21.03
WTD 20.00
On 2026-03-17		 18.65
On 2026-03-16		 1.32 7.26 20.00
On 2026-03-17		 18.97
On 2026-03-18		 -5.13 19.39
MTD 21.14
On 2026-03-02		 17.03
On 2026-03-12		 -0.73 -3.61 21.14
On 2026-03-02		 17.03
On 2026-03-12		 -19.44 19.39
As of Friday, March 20th, 2026
 
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AMPH

Amphastar Pharmaceuticals Inc.

19.50 -0.04 -0.20 1,133,239