American Superconductor (AMSC) Short Interest Ratio & Short Volume $49.58 -1.10 (-2.17%) Closing price 08/25/2025 04:00 PM EasternExtended Trading$50.34 +0.76 (+1.54%) As of 08:12 AM 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 Short Interest Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock American Superconductor Short Interest DataAmerican Superconductor (AMSC) has a short interest of 2.37 million shares, representing 5.51% of the float (the number of shares available for trading by the public). This marks a -23.30% decrease in short interest from the previous month. The short interest ratio (days to cover) is 1.9, indicating that it would take 1.9 days of the average trading volume of 1.35 million shares to cover all short positions.Current Short Interest2,370,000 sharesPrevious Short Interest3,090,000 sharesChange Vs. Previous Month-23.30%Dollar Volume Sold Short$134.73 millionShort Interest Ratio1.9 Days to CoverLast Record DateJuly 31, 2025Outstanding Shares45,160,000 sharesShort Percent of Float5.51%Today's Trading Volume503,198 sharesAverage Trading Volume1,345,462 sharesToday's Volume Vs. Average37% Short Selling American Superconductor? Sign up to receive the latest short interest report for American Superconductor and its competitors with MarketBeat's FREE newsletter. Email Address Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartAMSC Short Interest Over TimeAMSC Days to Cover Over TimeAMSC Percentage of Float Shorted Over Time American Superconductor Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 7/31/20252,370,000 shares $134.73 million -23.3%5.5%1.9 $56.85 7/15/20253,090,000 shares $126.57 million -8.9%N/A3 $40.96 6/30/20253,390,000 shares $124.38 million +25.6%9.0%3.5 $36.69 6/15/20252,700,000 shares $79.25 million -3.6%7.2%3.1 $29.35 5/31/20252,800,000 shares $79.18 million -9.1%7.4%3.9 $28.28 5/15/20253,080,000 shares $72.44 million -2.8%8.2%4.2 $23.52 4/30/20253,170,000 shares $62.92 million +17.0%N/A3.6 $19.85 4/15/20252,710,000 shares $49.46 million -3.2%7.2%2.8 $18.25 3/31/20252,800,000 shares $50.79 million -3.8%7.4%2.7 $18.14 3/15/20252,910,000 shares $58.20 million -8.2%7.7%2.6 $20.00 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. 2/28/20253,170,000 shares $71.99 million +5.7%8.4%2.5 $22.71 2/15/20253,000,000 shares $93.48 million -14.3%8.0%2.3 $31.16 1/31/20253,500,000 shares $91.95 million -10.5%N/A2.5 $26.27 1/15/20253,910,000 shares $109.68 million +2.6%N/A3 $28.05 12/31/20243,810,000 shares $93.84 million +28.3%N/A2.7 $24.63 12/15/20242,970,000 shares $76.72 million +12.5%N/A2.1 $25.83 11/30/20242,640,000 shares $89.92 million -8.0%N/A1.9 $34.06 11/15/20242,870,000 shares $86.33 million +4.7%N/A2.2 $30.08 10/31/20242,740,000 shares $67.18 million +5.0%N/A2.4 $24.52 10/15/20242,610,000 shares $60.73 million -10.3%N/A2.6 $23.27 9/30/20242,910,000 shares $68.68 million +10.2%N/A2.8 $23.60 9/15/20242,640,000 shares $56.60 million +3.1%N/A2.3 $21.44 8/31/20242,560,000 shares $51.76 million -4.8%N/A2.3 $20.22 8/15/20242,690,000 shares $57.08 million -0.4%N/A2.2 $21.22 7/31/20242,700,000 shares $65.23 million -8.2%N/A2.3 $24.16 7/15/20242,940,000 shares $91.70 million +30.7%N/A2.8 $31.19 6/30/20242,250,000 shares $52.63 million +10.8%N/A2.6 $23.39 6/15/20242,030,000 shares $52.62 million +21.6%N/A3.1 $25.92 5/31/20241,670,000 shares $32.03 million -9.7%N/A3.1 $19.18 5/15/20241,850,000 shares $26.81 million -1.6%N/A4.4 $14.49 4/30/20241,880,000 shares $23.22 million -13.0%N/A3.4 $12.35 4/15/20242,160,000 shares $26.05 million +13.1%N/A2.2 $12.06 3/31/20241,910,000 shares $25.80 million -5.0%N/A1.9 $13.51 3/15/20242,010,000 shares $28.24 million +12.9%N/A2 $14.05 2/29/20241,780,000 shares $23.94 million -6.3%N/A1.7 $13.45 2/15/20241,900,000 shares $27.30 million -8.7%N/A1.9 $14.37 1/31/20242,080,000 shares $22.88 million +44.4%N/A2.3 $11.00 1/15/20241,440,000 shares $14.56 million No ChangeN/A3.1 $10.11 12/31/20231,440,000 shares $16.04 million -12.7%N/A3.1 $11.14 12/15/20231,650,000 shares $18.40 million +5.8%N/A3.7 $11.15GENIUS Act: Cancel Your Money? (Ad)A new law called the GENIUS Act could quietly trigger the most radical shift in American finance in decades. Backed by the government but powered by private corporations, this initiative paves the way for digital dollars—programmable, trackable, and outside your control. Once embedded into apps, banks, and retail systems, opting out may no longer be possible. But there’s still time to protect your financial freedom—if you act before the system goes fully live.Get the free info kit with 3 strategies to sidestep digital dollar control. 11/30/20231,560,000 shares $14.76 million -1.9%N/A3.5 $9.46 11/15/20231,590,000 shares $14.17 million -18.5%N/A3 $8.91 10/31/20231,950,000 shares $12.22 million +1.6%N/A2.2 $6.27 10/15/20231,920,000 shares $12.15 million -3.0%N/A0.7 $6.33 9/30/20231,980,000 shares $14.95 million -13.2%N/A0.7 $7.55 9/15/20232,280,000 shares $17.60 million -12.3%N/A0.9 $7.72 8/31/20232,600,000 shares $24.05 million -14.5%N/A1 $9.25 8/15/20233,040,000 shares $27.33 million +341.5%N/A1.2 $8.99 7/31/2023688,500 shares $6.94 million +21.4%N/A0.3 $10.08 7/15/2023567,100 shares $3.71 million -16.3%N/A2.8 $6.55 6/30/2023677,900 shares $4.24 million -16.9%N/A3.7 $6.26 6/15/2023815,400 shares $5.54 million +27.3%2.9%4.4 $6.79 5/31/2023640,700 shares $3.00 million -5.8%N/A3.9 $4.69 5/15/2023680,000 shares $2.94 million -14.3%N/A4.9 $4.33 4/30/2023793,200 shares $3.21 million -3.8%N/A4.7 $4.05 4/15/2023824,400 shares $3.49 million -6.0%N/A4.7 $4.23 3/31/2023877,300 shares $4.31 million +9.5%N/A4.6 $4.91 3/15/2023800,900 shares $3.68 million +14.4%N/A4.3 $4.59 2/28/2023700,400 shares $3.75 million +11.9%N/A3.3 $5.36 2/15/2023625,800 shares $3.78 million +39.7%N/A2.9 $6.04 1/31/2023448,000 shares $2.43 million +8.7%N/A2.2 $5.43 1/15/2023412,100 shares $1.99 million -7.5%1.5%2 $4.83 12/30/2022445,700 shares $1.64 million -31.7%1.6%2.2 $3.68 12/15/2022652,500 shares $2.38 million +12.6%2.4%3 $3.64 11/30/2022579,300 shares $2.18 million +12.7%2.1%2.8 $3.76 11/15/2022514,100 shares $2.15 million -0.3%1.9%2.5 $4.18 10/31/2022515,800 shares $2.33 million -13.2%1.9%2.2 $4.52 10/15/2022593,900 shares $2.30 million -2.1%2.2%2.6 $3.87 9/30/2022606,800 shares $2.66 million +19.6%2.2%2.5 $4.38 9/15/2022507,300 shares $2.49 million +4.7%1.8%1.5 $4.91 8/31/2022484,600 shares $2.59 million -3.3%1.8%1.3 $5.34 8/15/2022501,000 shares $3.05 million -9.6%1.8%1.3 $6.09 7/31/2022553,900 shares $3.40 million -2.5%2.0%1.4 $6.14 7/15/2022568,200 shares $2.69 million -49.7%2.1%1.5 $4.74 6/30/20221,130,000 shares $5.85 million -36.5%4.1%2.9 $5.18 6/15/20221,780,000 shares $9.43 million +12.7%6.5%4.7 $5.30 5/31/20221,580,000 shares $8.44 million +4.6%5.8%5.5 $5.34 5/15/20221,510,000 shares $7.78 million +5.6%5.5%5.5 $5.15 4/30/20221,430,000 shares $7.62 million +23.3%5.2%5.3 $5.33 4/15/20221,160,000 shares $7.96 million +5.5%4.2%4.2 $6.86 3/31/20221,100,000 shares $8.37 million -17.9%4.0%4 $7.61 3/15/20221,340,000 shares $10.64 million +11.7%4.9%5.3 $7.94 2/28/20221,200,000 shares $10.19 million No Change4.4%4.8 $8.49 2/15/20221,200,000 shares $10.12 million +5.3%4.4%5 $8.43 1/31/20221,140,000 shares $9.35 million -0.9%4.2%4.5 $8.20 1/15/20221,150,000 shares $11.04 million +5.5%5.2%4.9 $9.60 12/31/20211,090,000 shares $11.86 million +2.8%4.9%4.7 $10.88 12/15/20211,060,000 shares $11.74 million -13.1%5.0%4.2 $11.08 11/30/20211,220,000 shares $15.62 million -3.9%5.7%5 $12.80 11/15/20211,270,000 shares $19.88 million -19.6%6.0%4.6 $15.65GENIUS Act: Cancel Your Money? (Ad)A new law called the GENIUS Act could quietly trigger the most radical shift in American finance in decades. Backed by the government but powered by private corporations, this initiative paves the way for digital dollars—programmable, trackable, and outside your control. Once embedded into apps, banks, and retail systems, opting out may no longer be possible. But there’s still time to protect your financial freedom—if you act before the system goes fully live.Get the free info kit with 3 strategies to sidestep digital dollar control. 10/29/20211,580,000 shares $29.04 million -6.5%7.4%5.7 $18.38 10/15/20211,690,000 shares $28.31 million -13.3%8.0%6 $16.75 9/30/20211,950,000 shares $28.43 million +12.7%9.2%6.7 $14.58 9/15/20211,730,000 shares $22.68 million +7.5%8.1%5.7 $13.11 8/31/20211,610,000 shares $23.99 million +11.8%7.6%4.9 $14.90 8/13/20211,440,000 shares $18.19 million -10.6%6.8%3.6 $12.63 7/30/20211,610,000 shares $22.62 million +15.0%7.6%3.9 $14.05 7/15/20211,400,000 shares $20.47 million -17.2%6.8%3.4 $14.62 6/30/20211,690,000 shares $29.39 million No Change8.2%3.8 $17.39 6/15/20211,690,000 shares $24.84 million +14.2%8.2%3.6 $14.70 5/28/20211,480,000 shares $22.16 million +1.4%7.2%3.3 $14.97 5/14/20211,460,000 shares $19.20 million +8.2%7.1%4 $13.15 4/30/20211,350,000 shares $22.96 million +18.4%6.6%3.5 $17.01 4/15/20211,140,000 shares $20.35 million -13.0%5.5%2.6 $17.85 3/31/20211,310,000 shares $23.89 million +17.0%6.4%2.8 $18.24 3/15/20211,120,000 shares $29.03 million -7.4%5.4%2.3 $25.92 2/26/20211,210,000 shares $29.15 million -6.9%5.9%2.6 $24.09 2/12/20211,300,000 shares $33.67 million +2.4%6.3%2.7 $25.90 1/29/20211,270,000 shares $32.73 million -1.6%6.2%2.7 $25.77 1/15/20211,290,000 shares $31.59 million -15.7%6.3%2.9 $24.49 12/31/20201,530,000 shares $35.54 million +3.4%7.5%3.5 $23.23 12/15/20201,480,000 shares $29.91 million +2.8%7.2%3.3 $20.21 11/30/20201,440,000 shares $28.11 million -11.7%7.0%3.6 $19.52 11/15/20201,630,000 shares $23.17 million -14.7%8.0%4.3 $14.22 10/30/20201,910,000 shares $27.08 million -13.2%9.3%5.3 $14.18 10/15/20202,200,000 shares $38.83 million -0.9%11.0%6.3 $17.65 9/30/20202,220,000 shares $32.15 million +3.3%11.1%7.6 $14.48 9/15/20202,150,000 shares $26.17 million +3.4%10.8%10.1 $12.17 8/31/20202,080,000 shares $26.12 million -14.1%10.4%9.4 $12.56 AMSC Short Interest - Frequently Asked Questions What is American Superconductor's current short interest? Short interest is the volume of American Superconductor shares that have been sold short but have not yet been closed out or covered. As of July 31st, investors have sold 2,370,000 shares of AMSC short. 5.51% of American Superconductor's shares are currently sold short. Learn More on American Superconductor's current short interest. What is a good short interest ratio for American Superconductor? The short interest ratio, also known as the "days to cover ratio", is calculated by dividing the number of shares of a stock sold short divided by its average trading volume. A short interest ratio ranging between 1 and 4 generally indicates strong positive sentiment about a stock and a lack of short sellers. A short interest ratio of 10 or greater indicates strong pessimism about a stock. AMSC shares currently have a short interest ratio of 2.0. Learn More on American Superconductor's short interest ratio. Which institutional investors are shorting American Superconductor? As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of American Superconductor: Group One Trading LLC, Jane Street Group LLC, Walleye Capital LLC, Walleye Trading LLC, Capital Fund Management S.A., and Simplex Trading LLC. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission. What is a good short interest percentage for American Superconductor? Companies that have a short interest as a percentage of float below 10% indicates positive investor sentiment and few short sellers. Stocks with a short interest percentage above 10% is considered high, suggesting some investors are pessimistic about the stock. Companies with a short interest percentage of 20% or more indicates widespread negative sentiment. 5.51% of American Superconductor's floating shares are currently sold short. Is American Superconductor's short interest increasing or decreasing? American Superconductor saw a decline in short interest in the month of July. As of July 31st, there was short interest totaling 2,370,000 shares, a decline of 23.3% from the previous total of 3,090,000 shares. Changes in short volume can be used to identify positive and negative investor sentiment. Investors that short sell a stock are betting that its price will decline in the future. An increase in short sale volume suggests bearish (negative) sentiment among investors. A decrease on short sale volume suggests bullish (positive) sentiment. How does American Superconductor's short interest compare to its competitors? 5.51% of American Superconductor's shares are currently sold short. Here is how the short interest of companies compare to American Superconductor: Belden Inc (1.71%), Enphase Energy, Inc. (23.22%), Franklin Electric Co., Inc. (1.71%), Enersys (2.33%), Brady Corporation (0.80%), Powell Industries, Inc. (18.35%), Vicor Corporation (5.90%), Preformed Line Products Company (4.95%), Thermon Group Holdings, Inc. (1.00%), LSI Industries Inc. (1.62%), Which stocks are the most shorted right now? As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($70.87 billion), Invesco QQQ ($30.12 billion), iShares Russell 2000 ETF ($19.85 billion), iShares 20+ Year Treasury Bond ETF ($10.34 billion), Strategy Inc ($8.98 billion), iShares iBoxx $ Investment Grade Corporate Bond ETF ($7.61 billion), SPDR S&P Biotech ETF ($6.81 billion), Invesco S&P 500 Equal Weight ETF ($6.14 billion), Palo Alto Networks, Inc. ($5.97 billion), and Super Micro Computer, Inc. ($5.28 billion). View all of the most shorted stocks. What does it mean to sell short American Superconductor stock? Short selling AMSC is an investing strategy that aims to generate trading profit from American Superconductor as its price is falling. AMSC shares are trading down $1.10 today. To short a stock, an investor borrows shares, sells them and buys the shares back on the public market later to return it to the lender. Short sellers are betting that a stock will decline in price. If the stock does drop after selling, the short seller buys it back at a lower price and returns it to the lender. The difference between the sell price and the buy price is the trader's profit. How does a short squeeze work against American Superconductor? A short squeeze for American Superconductor occurs when it has a large amount of short interest and its stock increases in price. This forces short sellers to cover their short interest positions by buying actual shares of AMSC, which in turn drives the price of the stock up even further. How often is American Superconductor's short interest reported? Short interest is typically published by a stock exchange once per month. However, NASDAQ publishes a report for U.S. stocks, including AMSC, twice per month. The most recent reporting period available is July, 31 2025. More Short Interest Resources from MarketBeat Related Companies BDC Short Interest ENPH Short Interest FELE Short Interest ENS Short Interest BRC Short Interest POWL Short Interest VICR Short Interest PLPC Short Interest THR Short Interest LYTS Short Interest Short Interest Tools Stocks to Short Largest Short Interest Positions Short Interest Increases Short Interest Decreases Short Interest Reporting Dates This page (NASDAQ:AMSC) was last updated on 8/26/2025 by MarketBeat.com Staff From Our PartnersWhat Steve Bannon revealed about Trump’s gold playA Trump advisor just said 3 words that could reset the dollar. 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