American Superconductor Corporation (AMSC)
NASDAQ: AMSC · Real-Time Price · USD
47.50
-2.14 (-4.31%)
At close: Apr 28, 2026, 4:00 PM EDT
47.60
+0.10 (0.21%)
After-hours: Apr 28, 2026, 7:58 PM EDT
American Superconductor Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Apr 28, 2026 | 47.91 | 49.49 | 45.57 | 47.50 | 47.50 | -4.31% | 1,762,718 |
| Apr 27, 2026 | 52.39 | 52.39 | 46.01 | 49.64 | 49.64 | 0.32% | 2,525,355 |
| Apr 24, 2026 | 48.14 | 50.78 | 45.50 | 49.48 | 49.48 | 7.22% | 2,319,312 |
| Apr 23, 2026 | 51.25 | 51.47 | 44.47 | 46.15 | 46.15 | -4.15% | 2,644,641 |
| Apr 22, 2026 | 43.40 | 48.23 | 43.40 | 48.15 | 48.15 | 14.83% | 2,463,651 |
| Apr 21, 2026 | 41.36 | 42.93 | 40.75 | 41.93 | 41.93 | 2.95% | 1,586,955 |
| Apr 20, 2026 | 39.37 | 40.84 | 38.81 | 40.73 | 40.73 | 2.54% | 692,339 |
| Apr 17, 2026 | 39.00 | 40.75 | 38.13 | 39.72 | 39.72 | 4.61% | 1,058,393 |
| Apr 16, 2026 | 37.86 | 38.59 | 36.89 | 37.97 | 37.97 | 0.61% | 917,306 |
| Apr 15, 2026 | 40.00 | 40.04 | 37.21 | 37.74 | 37.74 | -4.33% | 1,293,983 |
| Apr 14, 2026 | 39.00 | 39.60 | 37.25 | 39.45 | 39.45 | 4.34% | 993,882 |
| Apr 13, 2026 | 37.29 | 38.11 | 36.54 | 37.81 | 37.81 | 0.27% | 796,886 |
| Apr 10, 2026 | 36.50 | 39.25 | 36.35 | 37.71 | 37.71 | 4.32% | 1,238,430 |
| Apr 9, 2026 | 32.87 | 36.41 | 32.87 | 36.15 | 36.15 | 9.48% | 1,408,124 |
| Apr 8, 2026 | 33.73 | 34.28 | 32.68 | 33.02 | 33.02 | 4.69% | 918,462 |
| Apr 7, 2026 | 32.10 | 32.27 | 30.87 | 31.54 | 31.54 | -3.31% | 562,637 |
| Apr 6, 2026 | 32.37 | 32.99 | 31.97 | 32.62 | 32.62 | 1.65% | 380,864 |
| Apr 2, 2026 | 31.33 | 32.89 | 30.96 | 32.09 | 32.09 | -1.72% | 630,615 |
| Apr 1, 2026 | 34.26 | 35.05 | 32.60 | 32.65 | 32.65 | -3.55% | 633,709 |
| Mar 31, 2026 | 32.60 | 34.28 | 32.18 | 33.85 | 33.85 | 5.09% | 1,135,615 |
| Mar 30, 2026 | 33.87 | 33.87 | 31.36 | 32.21 | 32.21 | -4.48% | 1,978,075 |
| Mar 27, 2026 | 31.64 | 34.04 | 31.64 | 33.72 | 33.72 | 4.36% | 1,042,041 |
| Mar 26, 2026 | 32.56 | 34.27 | 32.21 | 32.31 | 32.31 | -3.72% | 1,573,076 |
| Mar 25, 2026 | 32.87 | 34.65 | 32.57 | 33.56 | 33.56 | 4.19% | 946,953 |
| Mar 24, 2026 | 30.00 | 32.73 | 30.00 | 32.21 | 32.21 | 4.58% | 893,656 |
| Mar 23, 2026 | 29.53 | 30.95 | 28.82 | 30.80 | 30.80 | 7.17% | 1,547,991 |
| Mar 20, 2026 | 30.47 | 30.78 | 28.55 | 28.74 | 28.74 | -6.29% | 1,246,301 |
| Mar 19, 2026 | 29.03 | 31.20 | 28.69 | 30.67 | 30.67 | 1.76% | 505,041 |
| Mar 18, 2026 | 31.10 | 31.67 | 30.11 | 30.14 | 30.14 | -3.30% | 621,334 |
| Mar 17, 2026 | 30.83 | 31.55 | 30.56 | 31.17 | 31.17 | 0.87% | 503,727 |
| Mar 16, 2026 | 32.15 | 32.50 | 30.11 | 30.90 | 30.90 | -0.39% | 637,575 |
| Mar 13, 2026 | 29.68 | 31.19 | 29.68 | 31.02 | 31.02 | 6.02% | 925,420 |
| Mar 12, 2026 | 29.70 | 30.03 | 28.82 | 29.26 | 29.26 | -4.57% | 666,633 |
| Mar 11, 2026 | 29.45 | 30.83 | 29.33 | 30.66 | 30.66 | 3.30% | 725,863 |
| Mar 10, 2026 | 29.00 | 30.23 | 28.96 | 29.68 | 29.68 | 2.20% | 917,507 |
| Mar 9, 2026 | 27.09 | 29.11 | 26.46 | 29.04 | 29.04 | 4.84% | 1,292,092 |
| Mar 6, 2026 | 29.91 | 30.47 | 27.69 | 27.70 | 27.70 | -10.18% | 1,531,702 |
| Mar 5, 2026 | 31.35 | 31.70 | 30.01 | 30.84 | 30.84 | -3.20% | 688,375 |
| Mar 4, 2026 | 31.92 | 32.55 | 31.39 | 31.86 | 31.86 | 2.48% | 444,016 |
| Mar 3, 2026 | 31.40 | 31.58 | 30.08 | 31.09 | 31.09 | -5.82% | 718,811 |
| Mar 2, 2026 | 30.20 | 33.38 | 30.08 | 33.01 | 33.01 | 1.32% | 804,052 |
| 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 |
| Jan 2, 2026 | 29.75 | 31.61 | 29.71 | 31.58 | 31.58 | 9.73% | 1,042,098 |
| Dec 31, 2025 | 28.97 | 29.18 | 28.68 | 28.78 | 28.78 | -0.59% | 832,754 |
| Dec 30, 2025 | 29.41 | 29.44 | 28.94 | 28.95 | 28.95 | -0.99% | 1,096,828 |
| Dec 29, 2025 | 30.20 | 30.64 | 29.21 | 29.24 | 29.24 | -4.38% | 828,824 |
| Dec 26, 2025 | 31.37 | 31.45 | 30.40 | 30.58 | 30.58 | -2.43% | 526,093 |
| Dec 24, 2025 | 31.51 | 31.58 | 30.91 | 31.34 | 31.34 | -1.35% | 305,543 |
| Dec 23, 2025 | 31.59 | 32.18 | 31.49 | 31.77 | 31.77 | -0.28% | 546,169 |
| Dec 22, 2025 | 31.28 | 32.29 | 30.73 | 31.86 | 31.86 | 3.95% | 892,826 |
| Dec 19, 2025 | 30.49 | 31.61 | 30.29 | 30.65 | 30.65 | 0.20% | 920,813 |
| Dec 18, 2025 | 30.40 | 31.40 | 30.01 | 30.59 | 30.59 | 5.34% | 790,083 |
| Dec 17, 2025 | 31.43 | 32.06 | 28.97 | 29.04 | 29.04 | -6.95% | 1,216,891 |
| Dec 16, 2025 | 31.20 | 32.59 | 30.99 | 31.21 | 31.21 | -0.95% | 643,083 |
| Dec 15, 2025 | 31.58 | 31.84 | 30.67 | 31.51 | 31.51 | 1.42% | 1,002,069 |
| Dec 12, 2025 | 32.22 | 32.46 | 30.27 | 31.07 | 31.07 | -3.63% | 855,093 |
| Dec 11, 2025 | 32.74 | 32.80 | 31.41 | 32.24 | 32.24 | -3.39% | 928,401 |
| Dec 10, 2025 | 32.42 | 33.59 | 31.67 | 33.37 | 33.37 | 2.65% | 891,150 |
| Dec 9, 2025 | 32.27 | 32.71 | 31.75 | 32.51 | 32.51 | 0.15% | 559,672 |
| Dec 8, 2025 | 32.96 | 33.16 | 32.02 | 32.46 | 32.46 | -0.03% | 528,823 |
| Dec 5, 2025 | 33.01 | 33.16 | 31.95 | 32.47 | 32.47 | -1.64% | 743,311 |
| Dec 4, 2025 | 31.79 | 33.50 | 31.70 | 33.01 | 33.01 | 3.03% | 737,701 |
| Dec 3, 2025 | 30.74 | 32.15 | 29.90 | 32.04 | 32.04 | 4.06% | 631,207 |