American Superconductor (AMSC) Stock Chart & Stock Price History $24.19 -0.49 (-1.99%) Closing price 05/21/2025 04:00 PM EasternExtended Trading$25.52 +1.34 (+5.52%) As of 05/21/2025 07:59 PM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more. Add Compare Share Share Chart Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock American Superconductor Stock Price Performance The American Superconductor (AMSC) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has increased 53.10%, with a year-to-date return of -1.79%. In the past month, the stock has increased 31.32%, reflecting recent market activity. As of the latest close, American Superconductor traded at $24.19 with a market cap of $954.54 million and volume of 1.35 million shares. Five years ago, the stock traded at $6.66, representing a 263.21% increase over that period. At the time, it had a market cap of $146.87 million and a volume of 278,195 shares. Receive AMSC Stock News and Ratings via EmailSign-up to receive the latest news and ratings for American Superconductor and its competitors with MarketBeat's FREE daily newsletter. Email Address 5 Day Performance+0.71%1 Month Performance+31.32%3 Month Performance-5.88%Year-To-Date Performance-1.79%1 Year Performance+53.10%5 Year Performance+263.21% AMSC Stock Chart for Thursday, May, 22, 2025 AMSC Chart by TradingView American Superconductor Stock Price History Daily Weekly Monthly Yearly Time Frame Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year 3 Year 5 Year Time Frame * Start Date * End Date Export to Excel DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization05/21/2025$24.68$24.19-1.99%$25.28$23.771.35 million shs$954.54 million05/20/2025$24.76$24.68-0.32%$24.89$24.00665,139 shs$973.87 million05/19/2025$24.02$24.76+3.08%$24.78$23.18737,269 shs$977.03 million05/16/2025$23.52$24.02+2.13%$24.26$23.40399,121 shs$947.83 million05/15/2025$23.74$23.52-0.93%$23.73$22.78322,861 shs$928.10 million05/14/2025$23.58$23.74+0.68%$24.25$23.36538,615 shs$936.78 million05/13/2025$22.80$23.58+3.42%$24.31$22.96696,914 shs$930.47 million05/12/2025$21.63$22.80+5.41%$23.58$22.62675,867 shs$899.69 million05/09/2025$21.41$21.63+1.01%$21.87$21.27389,527 shs$853.52 million05/08/2025$20.72$21.41+3.33%$21.79$20.70402,967 shs$844.96 million Get the Latest News and Ratings for AMSC and Related StocksEnter your email address below to receive the latest news and analysts' ratings for American Superconductor and its competitors with MarketBeat's FREE daily newsletter. 05/07/2025$20.85$20.72-0.61%$21.10$20.43315,957 shs$817.69 million05/06/2025$20.58$20.85+1.31%$21.00$20.13378,013 shs$822.74 million05/05/2025$21.10$20.58-2.46%$21.15$20.51375,568 shs$812.09 million05/02/2025$20.29$21.10+3.99%$21.64$20.55505,895 shs$832.61 million05/01/2025$19.85$20.29+2.22%$20.85$19.92441,557 shs$800.64 million04/30/2025$20.22$19.85-1.83%$19.92$18.85459,375 shs$783.28 million04/29/2025$20.11$20.22+0.55%$20.45$19.60266,008 shs$797.88 million04/28/2025$20.29$20.11-0.89%$20.59$19.69271,752 shs$793.54 million04/25/2025$20.13$20.29+0.79%$20.62$19.84458,033 shs$800.64 million04/24/2025$18.57$20.13+8.40%$20.44$18.73674,293 shs$794.33 million04/23/2025$18.42$18.57+0.81%$20.10$18.54566,115 shs$732.77 million04/22/2025$17.52$18.42+5.14%$18.78$17.67387,137 shs$726.85 million04/21/2025$18.41$17.52-4.83%$18.09$17.14466,702 shs$691.34 million Related Companies EnerSys Stock Chart Brady Stock Chart Powell Industries Stock Chart Vicor Stock Chart Thermon Group Stock Chart Preformed Line Products Stock Chart LSI Industries Stock Chart FuelCell Energy Stock Chart Eaton Stock Chart Emerson Electric Stock Chart Receive AMSC Stock News and Ratings via EmailSign-up to receive the latest news and ratings for American Superconductor and its competitors with MarketBeat's FREE daily newsletter. 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