5 DAY PERFORMANCE
-2.64%
1 MONTH PERFORMANCE
-16.04%
3 MONTH PERFORMANCE
-11.69%
6 MONTH PERFORMANCE
-42.24%
YEAR-TO-DATE PERFORMANCE
-44.47%
1 YEAR PERFORMANCE
-47.94%
Amphastar Pharmaceuticals, Inc. Stock Chart
Share Price History
| Date | Opening Price | Closing Price | High | Low | Volume | Market Capitalization |
|---|---|---|---|---|---|---|
| 07/18/2025 | $21.92 | $20.62 (-5.93%) | $22.00 | $20.43 | 430.27 K | $982.36 M |
| 07/17/2025 | $21.20 | $21.70 (2.36%) | $21.92 | $21.19 | 407.70 K | $1.03 B |
| 07/16/2025 | $21.41 | $21.27 (-0.65%) | $21.65 | $21.09 | 675.72 K | $1.01 B |
| 07/15/2025 | $22.11 | $21.18 (-4.21%) | $22.31 | $21.16 | 504.52 K | $1.01 B |
| 07/14/2025 | $21.71 | $21.95 (1.11%) | $22.12 | $21.50 | 504.96 K | $1.05 B |
| 07/11/2025 | $22.00 | $21.66 (-1.55%) | $22.14 | $21.48 | 449.10 K | $1.03 B |
| 07/10/2025 | $22.44 | $22.21 (-1.02%) | $22.83 | $22.20 | 464.80 K | $1.06 B |
| 07/09/2025 | $22.78 | $22.44 (-1.49%) | $22.94 | $22.29 | 371.50 K | $1.07 B |
| 07/08/2025 | $22.86 | $22.60 (-1.14%) | $23.38 | $22.43 | 657.40 K | $1.08 B |
| 07/07/2025 | $23.06 | $22.86 (-0.87%) | $23.72 | $22.80 | 791.12 K | $1.09 B |
| 07/03/2025 | $23.66 | $23.20 (-1.94%) | $23.77 | $22.92 | 221.80 K | $1.11 B |
| 07/02/2025 | $23.43 | $23.58 (0.64%) | $23.72 | $23.20 | 465.40 K | $1.12 B |
| 07/01/2025 | $22.94 | $23.34 (1.74%) | $24.52 | $22.89 | 444.41 K | $1.11 B |
| 06/30/2025 | $23.17 | $22.96 (-0.91%) | $23.25 | $22.81 | 396.10 K | $1.09 B |
| 06/27/2025 | $23.32 | $23.08 (-1.03%) | $23.42 | $22.86 | 1.27 M | $1.10 B |
| 06/26/2025 | $23.60 | $23.18 (-1.78%) | $23.77 | $23.03 | 517.51 K | $1.10 B |
| 06/25/2025 | $24.51 | $23.45 (-4.32%) | $24.53 | $23.31 | 426.90 K | $1.12 B |
| 06/24/2025 | $24.83 | $24.58 (-1.01%) | $25.04 | $24.53 | 395.50 K | $1.17 B |
| 06/23/2025 | $24.50 | $24.68 (0.73%) | $24.75 | $24.40 | 409.11 K | $1.18 B |
| 06/20/2025 | $25.67 | $24.56 (-4.32%) | $25.85 | $24.35 | 672.73 K | $1.17 B |
| 06/18/2025 | $25.58 | $25.34 (-0.94%) | $25.80 | $25.26 | 394.00 K | $1.21 B |
| 06/17/2025 | $25.78 | $25.61 (-0.66%) | $26.06 | $25.54 | 400.00 K | $1.22 B |
| 06/16/2025 | $25.96 | $25.98 (0.08%) | $26.03 | $25.59 | 366.13 K | $1.24 B |
| 06/13/2025 | $25.93 | $25.82 (-0.42%) | $26.27 | $25.70 | 402.50 K | $1.23 B |
| 06/12/2025 | $26.08 | $26.44 (1.38%) | $26.50 | $25.77 | 507.00 K | $1.26 B |
| 06/11/2025 | $26.94 | $26.05 (-3.3%) | $27.04 | $26.02 | 528.24 K | $1.24 B |
| 06/10/2025 | $26.76 | $26.92 (0.6%) | $27.40 | $26.70 | 624.90 K | $1.28 B |
| 06/09/2025 | $26.17 | $26.62 (1.72%) | $26.86 | $26.10 | 514.54 K | $1.27 B |
| 06/06/2025 | $25.76 | $25.99 (0.89%) | $26.02 | $25.53 | 359.20 K | $1.24 B |
| 06/05/2025 | $25.90 | $25.52 (-1.47%) | $25.91 | $25.19 | 555.20 K | $1.22 B |
| 06/04/2025 | $26.01 | $25.86 (-0.58%) | $26.57 | $25.76 | 395.50 K | $1.23 B |
| 06/03/2025 | $25.39 | $26.01 (2.44%) | $26.17 | $25.13 | 526.30 K | $1.24 B |
| 06/02/2025 | $25.61 | $25.38 (-0.9%) | $26.05 | $25.26 | 656.46 K | $1.21 B |
| 05/30/2025 | $25.59 | $25.71 (0.47%) | $25.92 | $25.15 | 460.92 K | $1.22 B |
| 05/29/2025 | $25.39 | $25.64 (0.98%) | $25.79 | $25.18 | 524.70 K | $1.22 B |
| 05/28/2025 | $25.51 | $25.26 (-0.98%) | $25.69 | $25.12 | 476.43 K | $1.20 B |
| 05/27/2025 | $24.86 | $25.53 (2.7%) | $25.72 | $24.81 | 532.53 K | $1.22 B |
| 05/23/2025 | $23.74 | $24.47 (3.07%) | $24.49 | $23.74 | 548.60 K | $1.17 B |
| 05/22/2025 | $24.00 | $24.20 (0.83%) | $24.39 | $23.93 | 360.90 K | $1.15 B |
| 05/21/2025 | $24.81 | $24.16 (-2.62%) | $24.84 | $24.15 | 341.44 K | $1.15 B |
| 05/20/2025 | $24.83 | $25.07 (0.97%) | $25.24 | $24.67 | 482.10 K | $1.19 B |
| 05/19/2025 | $24.64 | $24.79 (0.61%) | $24.93 | $24.43 | 359.14 K | $1.18 B |
| 05/16/2025 | $24.32 | $24.86 (2.22%) | $24.90 | $24.20 | 510.68 K | $1.18 B |
| 05/15/2025 | $23.41 | $24.32 (3.89%) | $24.70 | $23.20 | 667.74 K | $1.16 B |
| 05/14/2025 | $23.88 | $23.30 (-2.43%) | $23.97 | $23.27 | 578.02 K | $1.11 B |
| 05/13/2025 | $24.21 | $23.88 (-1.36%) | $24.42 | $23.77 | 445.00 K | $1.14 B |
| 05/12/2025 | $24.05 | $24.34 (1.21%) | $24.57 | $23.60 | 563.81 K | $1.16 B |
| 05/09/2025 | $24.54 | $24.11 (-1.75%) | $25.03 | $23.30 | 790.22 K | $1.15 B |
| 05/08/2025 | $24.59 | $24.65 (0.24%) | $25.36 | $23.68 | 751.60 K | $1.17 B |
| 05/07/2025 | $24.03 | $24.43 (1.66%) | $24.61 | $23.95 | 819.85 K | $1.17 B |
| 05/06/2025 | $24.95 | $23.87 (-4.33%) | $25.04 | $23.69 | 751.95 K | $1.15 B |
| 05/05/2025 | $24.46 | $25.12 (2.7%) | $25.37 | $24.34 | 681.30 K | $1.21 B |
| 05/02/2025 | $24.41 | $24.50 (0.37%) | $24.69 | $24.19 | 674.10 K | $1.18 B |
| 05/01/2025 | $24.19 | $23.88 (-1.28%) | $24.54 | $23.76 | 562.40 K | $1.15 B |
| 04/30/2025 | $24.44 | $24.41 (-0.12%) | $24.52 | $23.91 | 460.20 K | $1.17 B |
| 04/29/2025 | $24.35 | $24.50 (0.62%) | $24.61 | $24.19 | 296.40 K | $1.18 B |
| 04/28/2025 | $24.28 | $24.41 (0.54%) | $24.47 | $24.12 | 355.52 K | $1.17 B |
| 04/25/2025 | $23.97 | $24.19 (0.92%) | $24.25 | $23.63 | 235.30 K | $1.16 B |
| 04/24/2025 | $23.58 | $24.07 (2.08%) | $24.15 | $23.35 | 388.20 K | $1.15 B |
| 04/23/2025 | $24.40 | $23.56 (-3.44%) | $24.69 | $23.46 | 317.45 K | $1.13 B |
| 04/22/2025 | $23.71 | $23.93 (0.93%) | $24.01 | $23.17 | 524.82 K | $1.15 B |
| 04/21/2025 | $23.21 | $23.50 (1.25%) | $23.59 | $22.84 | 486.54 K | $1.13 B |
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