American Superconductor Corporation (AMSC)
Showing Closing Date Range from Oct 6 to Nov 3, 2026 compared to Sep 7 to Oct 5, 2026.
Compare Last 28 Days with Previous Period
Investor Relations:amsc.com/investors
Current Period Close
$27.68
Oct 06, 2026 - Nov 03, 2026
Previous Period Close
$29.98
Sep 07, 2026 - Oct 05, 2026
Net Comparison Delta
$-2.30 (-7.67%)
Relative performance vs prior benchmark
Historical Quotes & Breakdown(21 dates)
| Current Date | Current Close | Previous Date | Previous Close | Delta (%) |
|---|---|---|---|---|
| Nov 03, 2026 | $27.68 | - | - | - |
| Nov 02, 2026 | $26.35 | - | - | - |
| Oct 30, 2026 | $27.05 | - | - | - |
| Oct 29, 2026 | $28.05 | - | - | - |
| Oct 28, 2026 | $28.19 | - | - | - |
| Oct 27, 2026 | $27.63 | Oct 05, 2026 | $29.98 | -7.84% |
| Oct 26, 2026 | $25.40 | Oct 02, 2026 | $30.01 | -15.36% |
| Oct 23, 2026 | $25.12 | Sep 25, 2026 | $30.01 | -16.29% |
| Oct 22, 2026 | $25.01 | Sep 24, 2026 | $30.42 | -17.78% |
| Oct 21, 2026 | $26.64 | Sep 23, 2026 | $31.05 | -14.20% |
| Oct 20, 2026 | $25.70 | Sep 22, 2026 | $31.24 | -17.73% |
| Oct 19, 2026 | $25.68 | Sep 21, 2026 | $30.24 | -15.08% |
| Oct 16, 2026 | $25.67 | Sep 18, 2026 | $30.19 | -14.97% |
| Oct 15, 2026 | $26.89 | Sep 17, 2026 | $29.15 | -7.75% |
| Oct 14, 2026 | $25.65 | Sep 16, 2026 | $27.81 | -7.77% |
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