Amphastar Pharmaceuticals Inc. (AMPH)
Showing Closing Date Range from Oct 8 to Oct 15, 2026 compared to Sep 30 to Oct 7, 2026.
Compare Last 7 Days with Previous Period
Investor Relations:ir.amphastar.com
Current Period Close
$26.08
Oct 08, 2026 - Oct 15, 2026
Previous Period Close
$25.54
Sep 30, 2026 - Oct 07, 2026
Net Comparison Delta
+$0.54 (+2.11%)
Relative performance vs prior benchmark
Historical Quotes & Breakdown(5 dates)
| Current Date | Current Close | Previous Date | Previous Close | Delta (%) |
|---|---|---|---|---|
| Oct 14, 2026 | $26.08 | - | - | - |
| Oct 13, 2026 | $26.05 | Oct 07, 2026 | $25.54 | +2.00% |
| Oct 12, 2026 | $26.76 | Oct 06, 2026 | $25.91 | +3.28% |
| Oct 09, 2026 | $26.62 | Oct 05, 2026 | $25.37 | +4.93% |
| Oct 08, 2026 | $25.81 | Oct 02, 2026 | $25.43 | +1.49% |