5 DAY PERFORMANCE
-4.36%
1 MONTH PERFORMANCE
-11.66%
3 MONTH PERFORMANCE
-30.52%
6 MONTH PERFORMANCE
-45.06%
YEAR-TO-DATE PERFORMANCE
-31.46%
1 YEAR PERFORMANCE
-37.78%
Amphastar Pharmaceuticals, Inc. Stock Chart
Share Price History
| Date | Opening Price | Closing Price | High | Low | Volume | Market Capitalization |
|---|---|---|---|---|---|---|
| 04/09/2025 | $23.36 | $25.40 (8.73%) | $25.51 | $23.38 | 525,367 | $1.14 B |
| 04/08/2025 | $25.47 | $23.75 (-6.75%) | $25.66 | $23.72 | 972,653 | $1.14 B |
| 04/07/2025 | $25.72 | $25.00 (-2.8%) | $25.95 | $24.71 | 1.29 M | $1.20 B |
| 04/04/2025 | $26.34 | $26.61 (1.03%) | $27.02 | $26.14 | 699,446 | $1.28 B |
| 04/03/2025 | $27.67 | $27.24 (-1.55%) | $28.06 | $26.88 | 605,700 | $1.31 B |
| 04/02/2025 | $27.99 | $27.80 (-0.68%) | $28.29 | $27.02 | 717,800 | $1.33 B |
| 04/01/2025 | $28.86 | $28.29 (-1.98%) | $29.27 | $28.17 | 785,100 | $1.36 B |
| 03/31/2025 | $28.22 | $28.99 (2.73%) | $29.18 | $28.01 | 547,900 | $1.39 B |
| 03/28/2025 | $28.45 | $28.43 (-0.07%) | $28.71 | $28.23 | 386,852 | $1.36 B |
| 03/27/2025 | $28.37 | $28.50 (0.46%) | $28.75 | $28.26 | 457,511 | $1.37 B |
| 03/26/2025 | $28.40 | $28.37 (-0.11%) | $28.83 | $28.02 | 437,900 | $1.36 B |
| 03/25/2025 | $28.50 | $28.39 (-0.39%) | $28.66 | $27.80 | 713,226 | $1.36 B |
| 03/24/2025 | $28.50 | $28.46 (-0.14%) | $28.65 | $28.07 | 538,425 | $1.37 B |
| 03/21/2025 | $27.66 | $28.29 (2.28%) | $28.44 | $27.66 | 1.48 M | $1.36 B |
| 03/20/2025 | $27.72 | $27.91 (0.69%) | $28.38 | $27.69 | 407,000 | $1.34 B |
| 03/19/2025 | $27.40 | $27.86 (1.68%) | $27.87 | $27.09 | 471,500 | $1.34 B |
| 03/18/2025 | $27.50 | $27.36 (-0.51%) | $27.81 | $27.22 | 602,500 | $1.31 B |
| 03/17/2025 | $26.68 | $27.69 (3.79%) | $27.98 | $26.68 | 648,301 | $1.33 B |
| 03/14/2025 | $26.22 | $26.66 (1.68%) | $26.76 | $26.14 | 500,925 | $1.28 B |
| 03/13/2025 | $26.34 | $26.24 (-0.38%) | $26.86 | $25.89 | 467,600 | $1.26 B |
| 03/12/2025 | $27.35 | $26.28 (-3.91%) | $27.55 | $26.22 | 700,518 | $1.26 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 |
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