stockNASDAQ: AMPH • 28 Days Updates
Amphastar Pharmaceuticals Inc. (AMPH)
Showing Closing Date Range from Sep 11 to Oct 9, 2026.
Investor Relations:ir.amphastar.com
Price & Performance Trajectory
Amphastar Pharmaceuticals Inc.NASDAQ: AMPH
Latest Close
$26.62
28 Days Updates Trajectory
Showing Closing Date Range from Sep 11 to Oct 9, 2026.Loading trajectory chart...
Click metric scorecards below to toggle price, return %, range & volume curvesAMPH session performance
✓ Latest Close USD
$26.62
Latest session close
+$2.84vs period start
Period Return % % GAIN
+11.94%
Net period trajectory
Cumulative ReturnNormalized
High / Low Range SPREAD
$26.79 / $23.24
Period range envelope
$3.55channel spread
Total Volume SHARES
9.00M
Period turnover
Avg: 529.3K/dLiquidity
Historical Session Ledger
Daily open, high, low, and close prices with volume and period returns.
Historical Quotes & Breakdown(17 dates)
| Date | Close (USD) | Return % | High | Low | Volume |
|---|---|---|---|---|---|
| Oct 09, 2026 | $26.62 | +3.14% | $26.79 | $25.65 | 269.3K |
| Oct 08, 2026 | $25.81 | +1.06% | $26.14 | $25.10 | 422.8K |
| Oct 07, 2026 | $25.54 | -1.43% | $26.17 | $25.29 | 774.8K |
| Oct 06, 2026 | $25.91 | +2.13% | $26.08 | $25.03 | 466.1K |
| Oct 05, 2026 | $25.37 | -0.24% | $25.70 | $25.17 | 453.6K |
| Oct 02, 2026 | $25.43 | +0.32% | $25.55 | $25.06 | 372.3K |
| Sep 25, 2026 | $26.13 | -0.53% | $26.63 | $25.66 | 376.9K |
| Sep 24, 2026 | $26.27 | +5.25% | $26.31 | $24.65 | 572.1K |
| Sep 23, 2026 | $24.96 | +2.63% | $25.12 | $24.20 | 508.1K |
| Sep 22, 2026 | $24.32 | -0.65% | $24.83 | $24.00 | 522.4K |
| Sep 21, 2026 | $24.48 | +3.64% | $25.41 | $23.45 | 595.8K |
| Sep 18, 2026 | $23.62 | -0.84% | $23.99 | $23.51 | 1.45M |
| Sep 17, 2026 | $23.82 | -0.54% | $24.18 | $23.50 | 465.6K |
| Sep 16, 2026 | $23.95 | +1.31% | $24.39 | $23.49 | 503.9K |
| Sep 15, 2026 | $23.64 | -1.13% | $23.94 | $23.56 | 354.4K |
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