American Superconductor Corporation (AMSC)
NASDAQ: AMSC · Real-Time Price · USD
31.17
+0.27 (0.87%)
At close: Mar 17, 2026, 4:00 PM EDT
30.83
-0.34 (-1.09%)
After-hours: Mar 17, 2026, 6:05 PM EDT
American Superconductor Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Mar 17, 2026 | 30.83 | 31.55 | 30.56 | 31.17 | 31.17 | 0.87% | 501,548 |
| Mar 16, 2026 | 32.15 | 32.50 | 30.11 | 30.90 | 30.90 | -0.39% | 636,862 |
| Mar 13, 2026 | 29.68 | 31.19 | 29.68 | 31.02 | 31.02 | 6.02% | 923,109 |
| Mar 12, 2026 | 29.70 | 30.03 | 28.82 | 29.26 | 29.26 | -4.57% | 664,311 |
| Mar 11, 2026 | 29.45 | 30.83 | 29.33 | 30.66 | 30.66 | 3.30% | 723,187 |
| Mar 10, 2026 | 29.00 | 30.23 | 28.96 | 29.68 | 29.68 | 2.20% | 912,020 |
| Mar 9, 2026 | 27.09 | 29.11 | 26.46 | 29.04 | 29.04 | 4.84% | 1,283,961 |
| Mar 6, 2026 | 29.91 | 30.47 | 27.69 | 27.70 | 27.70 | -10.18% | 1,520,731 |
| Mar 5, 2026 | 31.35 | 31.70 | 30.01 | 30.84 | 30.84 | -3.20% | 687,797 |
| Mar 4, 2026 | 31.92 | 32.55 | 31.39 | 31.86 | 31.86 | 2.48% | 439,163 |
| Mar 3, 2026 | 31.40 | 31.58 | 30.08 | 31.09 | 31.09 | -5.82% | 715,473 |
| Mar 2, 2026 | 30.20 | 33.38 | 30.08 | 33.01 | 33.01 | 1.32% | 803,887 |
| Feb 27, 2026 | 33.15 | 33.62 | 32.38 | 32.58 | 32.58 | -5.95% | 805,397 |
| Feb 26, 2026 | 34.30 | 34.81 | 33.20 | 34.64 | 34.64 | -0.12% | 615,011 |
| Feb 25, 2026 | 33.90 | 35.81 | 33.80 | 34.68 | 34.68 | 2.88% | 699,301 |
| Feb 24, 2026 | 32.31 | 34.24 | 32.05 | 33.71 | 33.71 | 3.69% | 820,897 |
| Feb 23, 2026 | 33.61 | 34.35 | 32.01 | 32.51 | 32.51 | -4.49% | 801,736 |
| Feb 20, 2026 | 33.17 | 35.53 | 32.50 | 34.04 | 34.04 | 0.77% | 1,173,308 |
| Feb 19, 2026 | 34.53 | 35.06 | 33.00 | 33.78 | 33.78 | -2.88% | 986,179 |
| Feb 18, 2026 | 37.40 | 38.11 | 34.00 | 34.78 | 34.78 | -5.13% | 1,764,505 |
| Feb 17, 2026 | 33.64 | 36.82 | 32.62 | 36.66 | 36.66 | 7.01% | 1,667,216 |
| Feb 13, 2026 | 31.95 | 34.53 | 31.05 | 34.26 | 34.26 | 7.23% | 1,435,297 |
| Feb 12, 2026 | 34.99 | 35.50 | 31.81 | 31.95 | 31.95 | -6.74% | 1,520,007 |
| Feb 11, 2026 | 33.49 | 34.82 | 31.21 | 34.26 | 34.26 | 7.47% | 2,737,608 |
| Feb 10, 2026 | 28.64 | 32.36 | 28.07 | 31.88 | 31.88 | 10.73% | 3,315,608 |
| Feb 9, 2026 | 28.13 | 30.13 | 27.74 | 28.79 | 28.79 | 2.20% | 1,079,774 |
| Feb 6, 2026 | 26.36 | 28.36 | 25.28 | 28.17 | 28.17 | 8.55% | 2,060,964 |
| Feb 5, 2026 | 31.76 | 31.85 | 24.87 | 25.95 | 25.95 | -6.01% | 3,549,139 |
| Feb 4, 2026 | 30.10 | 30.17 | 26.92 | 27.61 | 27.61 | -7.97% | 1,912,055 |
| Feb 3, 2026 | 30.90 | 31.24 | 28.75 | 30.00 | 30.00 | -0.07% | 1,010,698 |
| Feb 2, 2026 | 29.93 | 30.90 | 29.15 | 30.02 | 30.02 | 0.33% | 1,454,621 |
| Jan 30, 2026 | 30.96 | 31.67 | 29.67 | 29.92 | 29.92 | -4.86% | 762,403 |
| Jan 29, 2026 | 31.80 | 31.92 | 30.22 | 31.45 | 31.45 | -1.16% | 758,340 |
| Jan 28, 2026 | 32.57 | 32.88 | 31.30 | 31.82 | 31.82 | -1.09% | 606,465 |
| Jan 27, 2026 | 32.00 | 32.42 | 31.36 | 32.17 | 32.17 | 1.97% | 487,188 |
| Jan 26, 2026 | 33.13 | 33.94 | 31.36 | 31.55 | 31.55 | -5.20% | 843,451 |
| Jan 23, 2026 | 33.26 | 34.50 | 32.13 | 33.28 | 33.28 | 0.54% | 1,006,475 |
| Jan 22, 2026 | 32.42 | 33.47 | 31.80 | 33.10 | 33.10 | 4.06% | 957,144 |
| Jan 21, 2026 | 31.83 | 32.20 | 30.04 | 31.81 | 31.81 | 2.09% | 871,588 |
| Jan 20, 2026 | 30.52 | 31.42 | 30.28 | 31.16 | 31.16 | -3.20% | 691,802 |
| Jan 16, 2026 | 31.28 | 32.70 | 30.94 | 32.19 | 32.19 | 3.57% | 761,404 |
| Jan 15, 2026 | 31.64 | 32.00 | 30.96 | 31.08 | 31.08 | -0.54% | 653,452 |
| Jan 14, 2026 | 31.18 | 31.27 | 30.10 | 31.25 | 31.25 | -0.98% | 712,378 |
| Jan 13, 2026 | 30.85 | 31.78 | 30.65 | 31.56 | 31.56 | 3.58% | 725,076 |
| Jan 12, 2026 | 30.30 | 31.12 | 29.50 | 30.47 | 30.47 | -0.65% | 593,972 |
| Jan 9, 2026 | 30.95 | 31.30 | 29.92 | 30.67 | 30.67 | 0.29% | 591,755 |
| Jan 8, 2026 | 30.80 | 31.05 | 29.95 | 30.58 | 30.58 | -0.55% | 693,747 |
| Jan 7, 2026 | 30.80 | 31.38 | 30.16 | 30.75 | 30.75 | - | 705,620 |
| Jan 6, 2026 | 33.28 | 33.48 | 29.97 | 30.75 | 30.75 | -7.41% | 1,293,520 |
| Jan 5, 2026 | 32.35 | 33.69 | 32.08 | 33.21 | 33.21 | 5.16% | 1,208,583 |