5 DAY PERFORMANCE
+22.98%
1 MONTH PERFORMANCE
+11.35%
3 MONTH PERFORMANCE
-20.38%
6 MONTH PERFORMANCE
-23.84%
YEAR-TO-DATE PERFORMANCE
-4.58%
1 YEAR PERFORMANCE
-19.75%
Amphastar Pharmaceuticals, Inc. Stock Chart
Share Price History
| Date | Opening Price | Closing Price | High | Low | Volume | Market Capitalization |
|---|---|---|---|---|---|---|
| 03/12/2025 | $27.35 | $26.28 (-3.91%) | $27.55 | $26.22 | 700,273 | $1.29 B |
| 03/11/2025 | $28.40 | $27.33 (-3.77%) | $28.40 | $27.25 | 515,800 | $1.31 B |
| 03/10/2025 | $28.64 | $28.41 (-0.8%) | $29.34 | $28.22 | 537,000 | $1.36 B |
| 03/07/2025 | $28.14 | $28.81 (2.38%) | $29.37 | $28.08 | 544,300 | $1.38 B |
| 03/06/2025 | $27.80 | $28.32 (1.87%) | $28.49 | $27.26 | 721,300 | $1.36 B |
| 03/05/2025 | $27.52 | $28.06 (1.96%) | $28.06 | $27.04 | 632,400 | $1.35 B |
| 03/04/2025 | $27.21 | $27.62 (1.51%) | $28.24 | $27.00 | 803,214 | $1.33 B |
| 03/03/2025 | $28.51 | $27.52 (-3.47%) | $29.10 | $26.98 | 999,415 | $1.32 B |
| 02/28/2025 | $30.50 | $28.43 (-6.79%) | $31.00 | $27.82 | 1.79 M | $1.36 B |
| 02/27/2025 | $31.18 | $31.49 (0.99%) | $31.70 | $31.00 | 606,609 | $1.51 B |
| 02/26/2025 | $31.82 | $31.21 (-1.92%) | $32.22 | $31.08 | 508,000 | $1.50 B |
| 02/25/2025 | $32.39 | $31.99 (-1.23%) | $32.56 | $31.87 | 575,644 | $1.53 B |
| 02/24/2025 | $31.23 | $32.29 (3.39%) | $32.69 | $31.08 | 518,437 | $1.55 B |
| 02/21/2025 | $31.55 | $31.28 (-0.86%) | $31.60 | $30.96 | 523,506 | $1.52 B |
| 02/20/2025 | $31.20 | $31.30 (0.32%) | $31.41 | $30.95 | 550,105 | $1.52 B |
| 02/19/2025 | $30.69 | $31.21 (1.69%) | $31.45 | $30.65 | 661,918 | $1.52 B |
| 02/18/2025 | $31.02 | $30.75 (-0.87%) | $31.65 | $30.34 | 977,847 | $1.50 B |
| 02/14/2025 | $31.77 | $31.02 (-2.36%) | $31.90 | $30.95 | 550,056 | $1.51 B |
| 02/13/2025 | $31.95 | $31.74 (-0.66%) | $31.95 | $31.46 | 316,800 | $1.54 B |
| 02/12/2025 | $32.11 | $31.82 (-0.9%) | $32.40 | $31.75 | 358,800 | $1.55 B |
| 02/11/2025 | $32.10 | $32.21 (0.34%) | $32.25 | $31.55 | 435,624 | $1.57 B |
| 02/10/2025 | $32.22 | $32.21 (-0.03%) | $32.48 | $31.76 | 319,637 | $1.57 B |
| 02/07/2025 | $32.71 | $32.37 (-1.04%) | $32.95 | $32.16 | 311,590 | $1.57 B |
| 02/06/2025 | $32.82 | $32.79 (-0.09%) | $33.42 | $32.60 | 349,696 | $1.59 B |
| 02/05/2025 | $33.35 | $32.79 (-1.68%) | $33.35 | $32.50 | 356,053 | $1.59 B |
| 02/04/2025 | $32.42 | $33.19 (2.38%) | $33.76 | $32.25 | 440,800 | $1.61 B |
| 02/03/2025 | $34.08 | $33.39 (-2.02%) | $34.39 | $32.88 | 611,610 | $1.62 B |
| 01/31/2025 | $36.35 | $34.87 (-4.07%) | $36.35 | $34.75 | 517,933 | $1.70 B |
| 01/30/2025 | $36.42 | $36.37 (-0.14%) | $37.04 | $36.06 | 421,800 | $1.77 B |
| 01/29/2025 | $36.92 | $36.42 (-1.35%) | $37.28 | $36.40 | 425,146 | $1.77 B |
| 01/28/2025 | $37.08 | $37.12 (0.11%) | $37.38 | $36.53 | 444,824 | $1.80 B |
| 01/27/2025 | $36.62 | $37.11 (1.34%) | $37.66 | $36.48 | 421,701 | $1.80 B |
| 01/24/2025 | $36.31 | $36.50 (0.52%) | $36.84 | $35.79 | 588,500 | $1.77 B |
| 01/23/2025 | $36.22 | $36.39 (0.47%) | $36.66 | $35.84 | 350,600 | $1.77 B |
| 01/22/2025 | $35.90 | $36.14 (0.67%) | $36.30 | $35.56 | 358,168 | $1.76 B |
| 01/21/2025 | $36.04 | $36.03 (-0.03%) | $36.32 | $35.46 | 474,835 | $1.75 B |
| 01/17/2025 | $35.67 | $35.70 (0.08%) | $35.96 | $35.27 | 410,713 | $1.74 B |
| 01/16/2025 | $36.28 | $35.66 (-1.71%) | $36.85 | $34.60 | 1.06 M | $1.73 B |
| 01/15/2025 | $39.01 | $36.24 (-7.1%) | $39.01 | $35.87 | 908,143 | $1.76 B |
| 01/14/2025 | $38.00 | $38.48 (1.26%) | $38.92 | $37.26 | 605,852 | $1.87 B |
| 01/13/2025 | $36.05 | $37.92 (5.19%) | $37.95 | $35.85 | 461,900 | $1.84 B |
| 01/10/2025 | $36.20 | $36.36 (0.44%) | $36.58 | $35.71 | 410,130 | $1.77 B |
| 01/08/2025 | $35.15 | $36.63 (4.21%) | $36.99 | $34.69 | 923,893 | $1.78 B |
| 01/07/2025 | $35.80 | $35.25 (-1.54%) | $36.16 | $34.97 | 801,735 | $1.71 B |
| 01/06/2025 | $36.13 | $35.43 (-1.94%) | $36.45 | $34.87 | 828,625 | $1.72 B |
| 01/03/2025 | $36.50 | $36.30 (-0.55%) | $36.88 | $35.68 | 633,563 | $1.76 B |
| 01/02/2025 | $37.37 | $36.36 (-2.7%) | $37.84 | $36.07 | 410,222 | $1.77 B |
| 12/31/2024 | $37.01 | $37.13 (0.32%) | $37.37 | $36.48 | 568,434 | $1.81 B |
| 12/30/2024 | $37.69 | $36.84 (-2.26%) | $37.69 | $36.80 | 484,425 | $1.79 B |
| 12/27/2024 | $37.88 | $37.80 (-0.21%) | $38.27 | $37.36 | 374,200 | $1.84 B |
| 12/26/2024 | $38.25 | $38.17 (-0.21%) | $38.60 | $37.81 | 403,600 | $1.86 B |
| 12/24/2024 | $39.16 | $38.27 (-2.27%) | $39.56 | $37.88 | 305,200 | $1.86 B |
| 12/23/2024 | $39.07 | $39.12 (0.13%) | $39.77 | $38.37 | 543,071 | $1.90 B |
| 12/20/2024 | $39.31 | $39.14 (-0.43%) | $40.74 | $38.96 | 2.48 M | $1.90 B |
| 12/19/2024 | $39.59 | $39.39 (-0.51%) | $40.26 | $38.81 | 669,500 | $1.92 B |
| 12/18/2024 | $40.77 | $39.45 (-3.24%) | $41.13 | $38.78 | 984,600 | $1.92 B |
| 12/17/2024 | $40.43 | $40.85 (1.04%) | $41.84 | $40.37 | 524,810 | $1.99 B |
| 12/16/2024 | $42.13 | $40.84 (-3.06%) | $42.49 | $40.71 | 665,907 | $1.99 B |
| 12/13/2024 | $44.44 | $42.24 (-4.95%) | $45.39 | $41.82 | 831,517 | $2.05 B |
| 12/12/2024 | $43.56 | $44.50 (2.16%) | $45.00 | $43.51 | 632,739 | $2.16 B |
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