American Superconductor Corporation (AMSC)
Showing Closing Date Range from Oct 19 to Oct 26, 2026 compared to Oct 11 to Oct 18, 2026.
Compare Last 7 Days with Previous Period
Investor Relations:amsc.com/investors
Current Period Close
$25.40
Oct 19, 2026 - Oct 26, 2026
Previous Period Close
$25.67
Oct 11, 2026 - Oct 18, 2026
Net Comparison Delta
$-0.27 (-1.05%)
Relative performance vs prior benchmark
Historical Quotes & Breakdown(6 dates)
| Current Date | Current Close | Previous Date | Previous Close | Delta (%) |
|---|---|---|---|---|
| Oct 26, 2026 | $25.40 | - | - | - |
| Oct 23, 2026 | $25.12 | Oct 16, 2026 | $25.67 | -2.14% |
| Oct 22, 2026 | $25.01 | Oct 15, 2026 | $26.89 | -6.99% |
| Oct 21, 2026 | $26.64 | Oct 14, 2026 | $25.65 | +3.86% |
| Oct 20, 2026 | $25.70 | Oct 13, 2026 | $28.71 | -10.48% |
| Oct 19, 2026 | $25.68 | Oct 12, 2026 | $29.60 | -13.23% |