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AMPH — Amphastar Pharmaceuticals, Inc.
NasdaqAmphastar Pharmaceuticals, Inc.
$25.43
+0.08(+0.32%)
- O
- 25.46
- H
- 25.55
- L
- 25.06
- V
- 372.33K
⏱️ End-of-day dataAs of Oct 2, 2026
Latest Close$25.43
Period Return+6.27%
Period High$31.26
Period Low$16.65
Avg Daily Volume498.2K
Total Trading Days365
AMPH — Historical OHLCV Price & Volume Table
Apr 22, 2025 — Oct 2, 2026| Date▼ | Open⇅ | High⇅ | Low⇅ | Close⇅ | Change ($)⇅ | Change (%)⇅ | Volume⇅ | VWAP⇅ | Day Range (L - H) |
|---|---|---|---|---|---|---|---|---|---|
| Oct 2, 2026 | $25.46 | $25.55 | $25.06 | $25.43 | +$0.08 | +0.32% | 372,326 | $25.35 | $25.06 $25.55 |
| Oct 1, 2026 | $25.60 | $26.02 | $25.30 | $25.35 | $-0.46 | -1.78% | 530,991 | $25.54 | $25.30 $26.02 |
| Sep 30, 2026 | $26.73 | $26.79 | $25.77 | $25.81 | $-0.87 | -3.26% | 509,363 | $26.23 | $25.77 $26.79 |
| Sep 29, 2026 | $27.59 | $27.64 | $26.52 | $26.68 | $-0.71 | -2.59% | 631,997 | $26.87 | $26.52 $27.64 |
| Sep 28, 2026 | $25.99 | $27.80 | $25.96 | $27.39 | +$1.26 | +4.82% | 751,802 | $27.24 | $25.96 $27.80 |
| Sep 25, 2026 | $26.25 | $26.63 | $25.66 | $26.13 | $-0.14 | -0.53% | 376,922 | $26.05 | $25.66 $26.63 |
| Sep 24, 2026 | $24.81 | $26.31 | $24.65 | $26.27 | +$1.31 | +5.25% | 572,081 | $25.81 | $24.65 $26.31 |
| Sep 23, 2026 | $24.39 | $25.12 | $24.20 | $24.96 | +$0.64 | +2.63% | 508,095 | $24.79 | $24.20 $25.12 |
| Sep 22, 2026 | $24.60 | $24.83 | $24.00 | $24.32 | $-0.16 | -0.65% | 522,394 | $24.47 | $24.00 $24.83 |
| Sep 21, 2026 | $23.54 | $25.41 | $23.45 | $24.48 | +$0.86 | +3.64% | 595,754 | $24.78 | $23.45 $25.41 |
| Sep 18, 2026 | $23.69 | $23.99 | $23.51 | $23.62 | $-0.20 | -0.84% | 1,455,804 | $23.64 | $23.51 $23.99 |
| Sep 17, 2026 | $24.08 | $24.18 | $23.50 | $23.82 | $-0.13 | -0.54% | 465,642 | $23.80 | $23.50 $24.18 |
| Sep 16, 2026 | $23.64 | $24.39 | $23.49 | $23.95 | +$0.31 | +1.31% | 503,881 | $24.00 | $23.49 $24.39 |
| Sep 15, 2026 | $23.75 | $23.94 | $23.56 | $23.64 | $-0.27 | -1.13% | 347,311 | $23.71 | $23.56 $23.94 |
| Sep 14, 2026 | $23.84 | $24.28 | $23.56 | $23.91 | +$0.13 | +0.55% | 471,951 | $23.98 | $23.56 $24.28 |
| Sep 11, 2026 | $23.65 | $23.80 | $23.24 | $23.78 | +$0.24 | +1.02% | 418,054 | $23.63 | $23.24 $23.80 |
| Sep 10, 2026 | $23.00 | $23.69 | $22.76 | $23.54 | +$0.50 | +2.17% | 514,991 | $23.39 | $22.76 $23.69 |
| Sep 9, 2026 | $22.84 | $23.07 | $22.57 | $23.04 | +$0.11 | +0.48% | 351,602 | $22.91 | $22.57 $23.07 |
| Sep 8, 2026 | $22.82 | $23.14 | $22.30 | $22.93 | $-0.25 | -1.08% | 460,015 | $22.90 | $22.30 $23.14 |
| Sep 4, 2026 | $23.47 | $23.74 | $23.07 | $23.18 | $-0.66 | -2.77% | 650,129 | $23.25 | $23.07 $23.74 |
| Sep 3, 2026 | $23.88 | $23.92 | $23.04 | $23.84 | +$0.10 | +0.42% | 469,752 | $23.73 | $23.04 $23.92 |
| Sep 2, 2026 | $23.05 | $23.83 | $23.03 | $23.74 | +$0.78 | +3.40% | 436,680 | $23.61 | $23.03 $23.83 |
| Sep 1, 2026 | $22.59 | $23.05 | $22.59 | $22.96 | +$0.43 | +1.91% | 550,980 | $22.93 | $22.59 $23.05 |
| Aug 31, 2026 | $21.86 | $22.65 | $21.52 | $22.53 | +$0.52 | +2.36% | 274,026 | $22.40 | $21.52 $22.65 |
| Aug 28, 2026 | $21.88 | $22.15 | $21.69 | $22.01 | +$0.13 | +0.59% | 224,533 | $21.95 | $21.69 $22.15 |
| Aug 27, 2026 | $21.69 | $21.97 | $21.63 | $21.88 | $-0.14 | -0.64% | 259,788 | $21.85 | $21.63 $21.97 |
| Aug 26, 2026 | $21.86 | $22.44 | $21.72 | $22.02 | +$0.04 | +0.18% | 395,610 | $22.08 | $21.72 $22.44 |
| Aug 25, 2026 | $21.50 | $22.07 | $21.41 | $21.98 | +$0.46 | +2.14% | 283,774 | $21.80 | $21.41 $22.07 |
| Aug 24, 2026 | $21.60 | $21.81 | $21.26 | $21.52 | $-0.08 | -0.37% | 210,264 | $21.58 | $21.26 $21.81 |
| Aug 21, 2026 | $21.64 | $22.20 | $21.44 | $21.60 | $-0.08 | -0.37% | 376,558 | $21.67 | $21.44 $22.20 |