American Superconductor (AMSC) Stock Chart & Stock Price History $42.72 +1.34 (+3.24%) Closing price 07/18/2025 04:00 PM EasternExtended Trading$43.02 +0.31 (+0.71%) As of 07/18/2025 07:58 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 62.74%, with a year-to-date return of 73.45%. In the past month, the stock has increased 38.57%, reflecting recent market activity. As of the latest close, American Superconductor traded at $42.72 with a market cap of $1.69 billion and volume of 1.28 million shares. Five years ago, the stock traded at $9.21, representing a 363.84% increase over that period. At the time, it had a market cap of $210.72 million and a volume of 254,700 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+4.94%1 Month Performance+38.57%3 Month Performance+132.05%Year-To-Date Performance+73.45%1 Year Performance+62.74%5 Year Performance+363.84% AMSC Stock Chart for Saturday, July, 19, 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 Capitalization07/18/2025$41.38$42.72+3.24%$43.41$41.151.28 million shs$1.69 billion07/17/2025$41.07$41.38+0.75%$42.08$40.78809,184 shs$1.63 billion07/16/2025$40.96$41.07+0.27%$41.64$39.57872,757 shs$1.62 billion07/15/2025$40.71$40.96+0.61%$41.40$40.29986,682 shs$1.62 billion07/14/2025$39.17$40.71+3.93%$41.38$38.601.05 million shs$1.61 billion07/11/2025$39.72$39.17-1.38%$40.40$38.60715,900 shs$1.55 billion07/10/2025$39.91$39.72-0.48%$40.33$38.45886,922 shs$1.57 billion07/09/2025$38.93$39.91+2.52%$40.34$39.00857,238 shs$1.58 billion07/08/2025$40.26$38.93-3.30%$40.53$38.27999,176 shs$1.54 billion07/07/2025$39.46$40.26+2.02%$40.30$38.42942,170 shs$1.59 billion 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. 07/04/2025$39.46$39.46$41.10$39.35885,580 shs$1.56 billion07/03/2025$39.19$39.46+0.70%$41.10$39.35885,580 shs$1.56 billion07/02/2025$35.98$39.19+8.92%$39.70$35.591.76 million shs$1.55 billion07/01/2025$36.69$35.98-1.94%$36.75$34.871.01 million shs$1.42 billion06/30/2025$36.44$36.69+0.69%$37.53$36.121.34 million shs$1.45 billion06/27/2025$36.68$36.44-0.65%$37.89$35.761.78 million shs$1.44 billion06/26/2025$34.04$36.68+7.76%$36.78$33.691.44 million shs$1.45 billion06/25/2025$33.53$34.04+1.52%$34.15$33.06916,672 shs$1.34 billion06/24/2025$32.42$33.53+3.42%$33.77$32.241.11 million shs$1.32 billion06/23/2025$30.40$32.42+6.64%$32.46$29.141.46 million shs$1.28 billion06/20/2025$30.83$30.40-1.39%$31.10$30.031.14 million shs$1.20 billion06/19/2025$30.83$30.83$31.12$29.151.11 million shs$1.22 billion06/18/2025$29.88$30.83+3.18%$31.12$29.151.11 million shs$1.22 billion Related Companies Enphase Energy Stock Chart Belden Stock Chart Franklin Electric Stock Chart 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 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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