American Superconductor Corporation (AMSC)
Showing Closing Date Range from Aug 6 to Nov 4, 2026 compared to May 7 to Aug 5, 2026.
Compare Last 3 Months with Previous Period
Investor Relations:amsc.com/investors
Current Period Close
$27.68
Aug 06, 2026 - Nov 04, 2026
Previous Period Close
$32.94
May 07, 2026 - Aug 05, 2026
Net Comparison Delta
$-5.26 (-15.97%)
Relative performance vs prior benchmark
Historical Quotes & Breakdown(59 dates)
| Current Date | Current Close | Previous Date | Previous Close | Delta (%) |
|---|---|---|---|---|
| Nov 03, 2026 | $27.68 | Jul 31, 2026 | $29.37 | -5.75% |
| Nov 02, 2026 | $26.35 | Jul 30, 2026 | $29.45 | -10.53% |
| Oct 30, 2026 | $27.05 | Jul 29, 2026 | $26.64 | +1.54% |
| Oct 29, 2026 | $28.05 | Jul 28, 2026 | $28.75 | -2.43% |
| Oct 28, 2026 | $28.19 | Jul 27, 2026 | $30.53 | -7.66% |
| Oct 27, 2026 | $27.63 | Jul 24, 2026 | $30.52 | -9.47% |
| Oct 26, 2026 | $25.40 | Jul 23, 2026 | $33.00 | -23.03% |
| Oct 23, 2026 | $25.12 | Jul 22, 2026 | $33.40 | -24.79% |
| Oct 22, 2026 | $25.01 | Jul 21, 2026 | $34.55 | -27.61% |
| Oct 21, 2026 | $26.64 | Jul 20, 2026 | $32.51 | -18.06% |
| Oct 20, 2026 | $25.70 | Jul 17, 2026 | $33.03 | -22.19% |
| Oct 19, 2026 | $25.68 | Jul 16, 2026 | $33.09 | -22.39% |
| Oct 16, 2026 | $25.67 | Jul 15, 2026 | $35.30 | -27.28% |
| Oct 15, 2026 | $26.89 | Jul 14, 2026 | $35.46 | -24.17% |
| Oct 14, 2026 | $25.65 | Jul 13, 2026 | $34.18 | -24.96% |
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