AMPH: Amphastar Pharmaceuticals Inc.

As of Monday, September 21st, 2026

$ 24.48

+0.86 +3.64%

Open: 23.54
High: 25.41
Low: 23.45
Volume: 563,475
Previous Close on Friday, September 18th, 2026

$ 23.62

-0.20 -0.84%

Open: 23.69
High: 23.99
Low: 23.51
Volume: 1,452,319

Historical Data

Date Open High Low Close Volume Chg %Chg
2026-09-21 23.54 25.41 23.45 24.48 563,473 +0.86 +3.64
2026-09-18 23.69 23.99 23.51 23.62 1,452,319 -0.20 -0.84
2026-09-17 24.08 24.18 23.50 23.82 449,339 -0.13 -0.54
2026-09-16 23.64 24.39 23.49 23.95 501,156 +0.31 +1.31
2026-09-15 23.75 23.94 23.56 23.64 347,395 -0.27 -1.13
2026-09-14 23.84 24.28 23.56 23.91 471,954 +0.13 +0.55
2026-09-11 23.65 23.80 23.24 23.78 400,724 +0.24 +1.02
2026-09-10 23.00 23.69 22.76 23.54 495,998 +0.50 +2.17
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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 25.41
On 2026-09-21		 23.45
On 2026-09-21		 0.57 2.38 24.39
On 2026-09-16		 23.50
On 2026-09-17		 -3.67 23.90
10D 25.41
On 2026-09-21		 22.30
On 2026-09-08		 1.30 5.61 24.39
On 2026-09-16		 23.50
On 2026-09-17		 -3.67 23.67
20D 25.41
On 2026-09-21		 21.26
On 2026-08-24		 2.88 13.33 23.92
On 2026-09-03		 22.30
On 2026-09-08		 -6.77 23.12
WTD 25.41
On 2026-09-21		 23.45
On 2026-09-21		 0.86 3.64 -- -- -- 24.48
MTD 25.41
On 2026-09-21		 22.30
On 2026-09-08		 1.95 8.66 23.92
On 2026-09-03		 22.30
On 2026-09-08		 -6.77 23.60
As of Monday, September 21st, 2026
 
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AMPH

Amphastar Pharmaceuticals Inc.

24.48 +0.86 +3.64 563,475