5 DAY PERFORMANCE
-0.74%
1 MONTH PERFORMANCE
+1.59%
3 MONTH PERFORMANCE
-9.05%
6 MONTH PERFORMANCE
-41.47%
YEAR-TO-DATE PERFORMANCE
-31.27%
1 YEAR PERFORMANCE
-39.30%
Amphastar Pharmaceuticals, Inc. Stock Chart
Share Price History
| Date | Opening Price | Closing Price | High | Low | Volume | Market Capitalization |
|---|---|---|---|---|---|---|
| 06/05/2025 | $25.90 | $25.52 (-1.47%) | $25.91 | $25.19 | 555.10 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 |
| 04/17/2025 | $23.08 | $23.35 (1.17%) | $23.62 | $23.08 | 735.04 K | $1.12 B |
| 04/16/2025 | $23.62 | $22.99 (-2.67%) | $23.74 | $22.64 | 904.63 K | $1.10 B |
| 04/15/2025 | $24.26 | $23.50 (-3.13%) | $24.92 | $23.39 | 779.95 K | $1.13 B |
| 04/14/2025 | $24.55 | $24.42 (-0.53%) | $24.77 | $23.94 | 523.51 K | $1.17 B |
| 04/11/2025 | $23.73 | $24.16 (1.81%) | $24.22 | $23.35 | 482.80 K | $1.16 B |
| 04/10/2025 | $24.99 | $23.52 (-5.88%) | $25.01 | $22.74 | 840.60 K | $1.13 B |
| 04/09/2025 | $23.36 | $25.23 (8.01%) | $25.51 | $23.36 | 1.01 M | $1.21 B |
| 04/08/2025 | $25.47 | $23.75 (-6.75%) | $25.66 | $23.72 | 972.70 K | $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 | 699.45 K | $1.28 B |
| 04/03/2025 | $27.67 | $27.24 (-1.55%) | $28.06 | $26.88 | 605.70 K | $1.31 B |
| 04/02/2025 | $27.99 | $27.80 (-0.68%) | $28.29 | $27.02 | 717.80 K | $1.33 B |
| 04/01/2025 | $28.86 | $28.29 (-1.98%) | $29.27 | $28.17 | 785.10 K | $1.36 B |
| 03/31/2025 | $28.22 | $28.99 (2.73%) | $29.18 | $28.01 | 547.90 K | $1.39 B |
| 03/28/2025 | $28.45 | $28.43 (-0.07%) | $28.71 | $28.23 | 386.85 K | $1.36 B |
| 03/27/2025 | $28.37 | $28.50 (0.46%) | $28.75 | $28.26 | 457.51 K | $1.37 B |
| 03/26/2025 | $28.40 | $28.37 (-0.11%) | $28.83 | $28.02 | 437.90 K | $1.36 B |
| 03/25/2025 | $28.50 | $28.39 (-0.39%) | $28.66 | $27.80 | 713.23 K | $1.36 B |
| 03/24/2025 | $28.50 | $28.46 (-0.14%) | $28.65 | $28.07 | 538.43 K | $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 | 407.00 K | $1.34 B |
| 03/19/2025 | $27.40 | $27.86 (1.68%) | $27.87 | $27.09 | 471.50 K | $1.34 B |
| 03/18/2025 | $27.50 | $27.36 (-0.51%) | $27.81 | $27.22 | 602.50 K | $1.31 B |
| 03/17/2025 | $26.68 | $27.69 (3.79%) | $27.98 | $26.68 | 648.30 K | $1.33 B |
| 03/14/2025 | $26.22 | $26.66 (1.68%) | $26.76 | $26.14 | 500.93 K | $1.28 B |
| 03/13/2025 | $26.34 | $26.24 (-0.38%) | $26.86 | $25.89 | 467.60 K | $1.26 B |
| 03/12/2025 | $27.35 | $26.28 (-3.91%) | $27.55 | $26.22 | 700.52 K | $1.26 B |
| 03/11/2025 | $28.40 | $27.33 (-3.77%) | $28.40 | $27.25 | 515.80 K | $1.31 B |
| 03/10/2025 | $28.64 | $28.41 (-0.8%) | $29.34 | $28.22 | 537.00 K | $1.36 B |
| 03/07/2025 | $28.14 | $28.81 (2.38%) | $29.37 | $28.08 | 544.30 K | $1.38 B |
| 03/06/2025 | $27.80 | $28.32 (1.87%) | $28.49 | $27.26 | 721.30 K | $1.36 B |
| 03/05/2025 | $27.52 | $28.06 (1.96%) | $28.06 | $27.04 | 632.40 K | $1.35 B |
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