American Superconductor Corporation (AMSC)
NASDAQ: AMSC · Real-Time Price · USD
50.15
-4.91 (-8.92%)
At close: May 18, 2026, 4:00 PM EDT
49.54
-0.61 (-1.22%)
Pre-market: May 19, 2026, 6:08 AM EDT

American Superconductor Stock Price History

Historical Data

DateOpenHighLowCloseAdj. CloseChangeVolume
May 18, 202654.8655.1148.5250.1550.15-8.92%1,260,145
May 15, 202651.5355.2450.3255.0655.060.66%1,059,765
May 14, 202655.7355.7852.5854.7054.70-1.85%1,210,718
May 13, 202655.8156.2553.0055.7355.732.24%977,276
May 12, 202657.0457.0551.3254.5154.51-7.17%1,314,800
May 11, 202655.1060.1854.8158.7258.726.40%1,749,703
May 8, 202654.3755.6853.4755.1955.193.70%859,757
May 7, 202656.0956.9052.6653.2253.22-6.75%1,201,571
May 6, 202655.5957.1853.7157.0757.073.74%1,080,324
May 5, 202650.9955.7050.9955.0155.019.36%1,400,576
May 4, 202652.5153.0048.5350.3050.30-4.21%1,068,761
May 1, 202653.2254.2051.4252.5152.51-1.92%1,310,429
Apr 30, 202649.2353.6548.0053.5453.5412.24%1,863,819
Apr 29, 202647.7948.6045.6947.7047.700.42%1,293,242
Apr 28, 202647.9149.4945.5747.5047.50-4.31%1,769,648
Apr 27, 202652.3952.3946.0149.6449.640.32%2,525,355
Apr 24, 202648.1450.7845.5049.4849.487.22%2,319,312
Apr 23, 202651.2551.4744.4746.1546.15-4.15%2,644,641
Apr 22, 202643.4048.2343.4048.1548.1514.83%2,463,651
Apr 21, 202641.3642.9340.7541.9341.932.95%1,586,955
Apr 20, 202639.3740.8438.8140.7340.732.54%692,339
Apr 17, 202639.0040.7538.1339.7239.724.61%1,058,393
Apr 16, 202637.8638.5936.8937.9737.970.61%917,306
Apr 15, 202640.0040.0437.2137.7437.74-4.33%1,293,983
Apr 14, 202639.0039.6037.2539.4539.454.34%993,882
Apr 13, 202637.2938.1136.5437.8137.810.27%796,886
Apr 10, 202636.5039.2536.3537.7137.714.32%1,238,430
Apr 9, 202632.8736.4132.8736.1536.159.48%1,408,124
Apr 8, 202633.7334.2832.6833.0233.024.69%918,462
Apr 7, 202632.1032.2730.8731.5431.54-3.31%562,637
Apr 6, 202632.3732.9931.9732.6232.621.65%380,864
Apr 2, 202631.3332.8930.9632.0932.09-1.72%630,615
Apr 1, 202634.2635.0532.6032.6532.65-3.55%633,709
Mar 31, 202632.6034.2832.1833.8533.855.09%1,135,615
Mar 30, 202633.8733.8731.3632.2132.21-4.48%1,978,075
Mar 27, 202631.6434.0431.6433.7233.724.36%1,042,041
Mar 26, 202632.5634.2732.2132.3132.31-3.72%1,573,076
Mar 25, 202632.8734.6532.5733.5633.564.19%946,953
Mar 24, 202630.0032.7330.0032.2132.214.58%893,656
Mar 23, 202629.5330.9528.8230.8030.807.17%1,547,991
Mar 20, 202630.4730.7828.5528.7428.74-6.29%1,246,301
Mar 19, 202629.0331.2028.6930.6730.671.76%505,041
Mar 18, 202631.1031.6730.1130.1430.14-3.30%621,334
Mar 17, 202630.8331.5530.5631.1731.170.87%503,727
Mar 16, 202632.1532.5030.1130.9030.90-0.39%637,575
Mar 13, 202629.6831.1929.6831.0231.026.02%925,420
Mar 12, 202629.7030.0328.8229.2629.26-4.57%666,633
Mar 11, 202629.4530.8329.3330.6630.663.30%725,863
Mar 10, 202629.0030.2328.9629.6829.682.20%917,507
Mar 9, 202627.0929.1126.4629.0429.044.84%1,292,092