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American Superconductor Corp. short interest

4.1M shares of American Superconductor were sold short at the 15 October 2026 settlement, the most at any settlement since 29 Dec 2017, when our record starts. Short sellers would need 4.9 days of normal trading to buy them back.

Shares sold short4.1Mat 15 Oct 2026
Change on the settlement before+4.9%+53% over a year
Days to cover4.91at 832K shares a day
Of shares in issue8.44%shares short over shares outstanding
New to this? How to read this page
  1. Short interest is the number of shares investors have borrowed and sold, betting the price will fall, and not yet bought back.
  2. Days to cover is shares short over an average day's trading: how many days it would take short sellers to buy them all back. Above 5 or so is high.
  3. Rising short interest says more investors are betting against the stock. A crowded short can also rise fast if shorts rush to buy back.
  4. Brokers report it twice a month to FINRA, about ten days after each settlement date.
  5. What is short interest?

Short interest, days to cover and the price

Short interest is the most at any settlement since 29 Dec 2017, when our record starts, and the share price moved -58% over the last year.

Shares sold shortDays to coverShare price

Three charts on one timeline. Top: shares sold short at each settlement. Middle: days to cover, taller meaning shorts would need longer to buy back. Bottom: the share price, so you can see whether shorts added as the price fell or rose. Counts before a split are restated to today's shares, the way the price is.

How it compares

every company on the site

    The bar ranks every company on the site from the lowest on the left to the highest on the right, in three equal thirds; the small figures under it are the values where each third starts, and the black tick is the middle company. The orange dot is this company; the grey ticks are the other companies in its industry (hover or tap for names). A hatched block is companies tied at none.

    Every settlement since 29 Dec 2017 as a table
    SettlementShares shortChangeAverage daily volumeDays to cover
    15 October 20264.1M+4.9%832K4.91
    30 September 20263.9M-0.9%725K5.37
    15 September 20263.9M+7.5%658K5.98
    31 August 20263.7M+5.1%636K5.75
    14 August 20263.5M-1.5%719K4.84
    31 July 20263.5M+3.8%833K4.24
    15 July 20263.4M+1.2%672K5.07
    30 June 20263.4M-2.8%1.0M3.29
    15 June 20263.5M-11.2%1.4M2.39
    29 May 20263.9M+4.3%1.4M2.81
    15 May 20263.7M-1.0%1.2M3.14
    30 April 20263.8M+28.1%1.7M2.21
    15 April 20262.9M+5.0%875K3.37
    31 March 20262.8M+13.4%1.0M2.72
    13 March 20262.5M-17.9%863K2.87
    27 February 20263.0M+6.5%967K3.11
    13 February 20262.8M+16.1%2.0M1.43
    30 January 20262.4M-6.1%766K3.18
    15 January 20262.6M+8.0%813K3.19
    31 December 20252.4M+6.1%771K3.12
    15 December 20252.3M-11.0%773K2.93
    28 November 20252.5M-4.4%938K2.71
    14 November 20252.7M+1.3%1.7M1.53
    31 October 20252.6M-1.6%968K2.72
    15 October 20252.7M-4.4%1.2M2.17
    30 September 20252.8M+4.6%1.5M1.92
    15 September 20252.7M+18.1%923K2.89
    29 August 20252.3M-0.2%914K2.48
    15 August 20252.3M-4.2%1.2M1.83
    31 July 20252.4M-23.5%1.3M1.84
    15 July 20253.1M-8.7%1.0M3.08
    30 June 20253.4M+25.4%1.2M2.78
    13 June 20252.7M-3.6%1.8M1.49
    30 May 20252.8M-8.9%1.0M2.68
    15 May 20253.1M-2.8%455K6.76
    30 April 20253.2M+17.0%421K7.52
    15 April 20252.7M-3.2%661K4.09
    31 March 20252.8M-3.8%634K4.41
    14 March 20252.9M-8.2%1.0M2.90
    28 February 20253.2M+5.5%1.2M2.68
    14 February 20253.0M-14.2%1.8M1.65
    31 January 20253.5M-10.6%878K3.98
    15 January 20253.9M+2.8%977K4.00
    31 December 20243.8M+28.2%1.2M3.21
    13 December 20243.0M+12.6%1.6M1.87
    29 November 20242.6M-8.1%1.2M2.25
    15 November 20242.9M+4.7%2.1M1.34
    31 October 20242.7M+5.1%1.1M2.40
    15 October 20242.6M-10.3%1.0M2.55
    30 September 20242.9M+10.0%1.3M2.20
    13 September 20242.6M+3.1%959K2.76
    30 August 20242.6M-4.7%584K4.39
    15 August 20242.7M-0.2%958K2.81
    31 July 20242.7M-8.3%1.3M2.13
    15 July 20242.9M+30.5%1.3M2.33
    28 June 20242.3M+10.8%1.7M1.31
    14 June 20242.0M+22.1%1.3M1.56
    31 May 20241.7M-10.0%940K1.77
    15 May 20241.9M-1.4%326K5.68
    30 April 20241.9M-13.3%248K7.57
    15 April 20242.2M+13.0%296K7.31
    28 March 20241.9M-4.8%475K4.03
    15 March 20242.0M+13.0%694K2.90
    29 February 20241.8M-6.6%602K2.96
    15 February 20241.9M-8.6%1.4M1.41
    31 January 20242.1M+44.7%2.4M1.00
    12 January 20241.4M-0.1%467K3.08
    29 December 20231.4M-12.6%468K3.08
    15 December 20231.6M+5.7%491K3.36
    30 November 20231.6M-2.0%413K3.78
    15 November 20231.6M-18.2%473K3.37
    31 October 20231.9M+1.5%405K4.81
    13 October 20231.9M-3.1%431K4.45
    29 September 20232.0M-13.0%472K4.19
    15 September 20232.3M-12.6%741K3.07
    31 August 20232.6M-14.3%1.5M1.71
    15 August 20233.0M+341.3%11.8M1.00
    31 July 2023689K+21.4%1.1M1.00
    14 July 2023567K-16.3%107K5.32
    30 June 2023678K-16.9%258K2.63
    15 June 2023815K+27.3%359K2.27
    31 May 2023641K-5.8%154K4.16
    15 May 2023680K-14.3%95K7.19
    28 April 2023793K-3.8%94K8.44
    14 April 2023824K-6.0%168K4.92
    31 March 2023877K+9.6%165K5.31
    15 March 2023801K+14.3%173K4.64
    28 February 2023700K+11.9%176K3.99
    15 February 2023626K+39.7%282K2.22
    31 January 2023448K+8.7%166K2.69
    13 January 2023412K-7.5%140K2.93
    30 December 2022446K-31.7%282K1.58
    15 December 2022653K+12.6%211K3.09
    30 November 2022579K+12.7%175K3.31
    15 November 2022514K-0.3%285K1.81
    31 October 2022516K-13.1%120K4.29
    14 October 2022594K-2.1%198K2.99
    30 September 2022607K+19.6%273K2.22
    15 September 2022507K+4.7%224K2.26
    31 August 2022485K-3.3%185K2.63
    15 August 2022501K-9.6%336K1.49
    29 July 2022554K-2.5%207K2.67
    15 July 2022568K-49.7%230K2.47
    30 June 20221.1M-36.6%1.0M1.10
    15 June 20221.8M+12.8%400K4.45
    31 May 20221.6M+4.8%204K7.75
    13 May 20221.5M+5.5%257K5.86
    29 April 20221.4M+23.2%295K4.84
    14 April 20221.2M+5.2%217K5.33
    31 March 20221.1M-18.0%366K3.01
    15 March 20221.3M+12.4%306K4.38
    28 February 20221.2M-0.5%184K6.49
    15 February 20221.2M+5.5%252K4.77
    31 January 20221.1M-1.1%278K4.10
    14 January 20221.2M+5.8%203K5.68
    31 December 20211.1M+3.1%301K3.62
    15 December 20211.1M-13.8%233K4.54
    30 November 20211.2M-3.3%188K6.52
    15 November 20211.3M-20.0%268K4.73
    29 October 20211.6M-6.5%149K10.63
    15 October 20211.7M-13.4%264K6.42
    30 September 20212.0M+13.1%361K5.41
    15 September 20211.7M+7.1%267K6.47
    31 August 20211.6M+11.7%341K4.74
    13 August 20211.4M-10.3%289K4.99
    30 July 20211.6M+15.0%247K6.53
    15 July 20211.4M-17.4%200K7.01
    30 June 20211.7M+0.3%556K3.05
    15 June 20211.7M+14.3%909K1.86
    28 May 20211.5M+1.3%182K8.13
    14 May 20211.5M+7.8%320K4.55
    30 April 20211.4M+18.9%330K4.10
    15 April 20211.1M-13.2%331K3.44
    31 March 20211.3M+17.1%445K2.95
    15 March 20211.1M-7.3%308K3.63
    26 February 20211.2M-7.2%288K4.19
    12 February 20211.3M+2.2%536K2.43
    29 January 20211.3M-1.6%457K2.78
    15 January 20211.3M-15.4%530K2.44
    31 December 20201.5M+3.6%558K2.74
    15 December 20201.5M+2.6%231K6.38
    30 November 20201.4M-11.9%345K4.17
    13 November 20201.6M-14.4%289K5.65
    30 October 20201.9M-13.5%570K3.34
    15 October 20202.2M-0.7%354K6.22
    30 September 20202.2M+2.9%434K5.10
    15 September 20202.2M+3.6%143K15.04
    31 August 20202.1M-14.3%189K11.00
    14 August 20202.4M+4.6%293K8.26
    31 July 20202.3M-1.9%168K13.79
    15 July 20202.4M+0.2%195K12.09
    30 June 20202.4M+5.2%218K10.81
    15 June 20202.2M-8.2%232K9.65
    29 May 20202.4M-3.7%228K10.71
    15 May 20202.5M-5.6%149K17.07
    30 April 20202.7M-5.0%142K18.88
    15 April 20202.8M+0.1%183K15.47
    31 March 20202.8M-9.6%302K9.34
    13 March 20203.1M-1.0%205K15.21
    28 February 20203.2M+2.2%257K12.25
    14 February 20203.1M+3.6%321K9.62
    31 January 20203.0M+2.9%246K12.09
    15 January 20202.9M-17.6%186K15.56
    31 December 20193.5M-3.6%230K15.28
    13 December 20193.6M+3.8%199K18.29
    29 November 20193.5M+17.8%315K11.15
    15 November 20193.0M+2.3%196K15.22
    31 October 20192.9M-1.6%171K17.04
    15 October 20193.0M+0.4%124K23.94
    30 September 20192.9M-0.9%199K14.83
    13 September 20193.0M-2.5%209K14.21
    30 August 20193.1M+1.8%155K19.74
    15 August 20193.0M+2.2%195K15.38
    31 July 20192.9M-3.2%150K19.50
    15 July 20193.0M+14.7%282K10.73
    28 June 20192.6M+16.9%547K4.83
    14 June 20192.3M-8.2%367K6.15
    31 May 20192.5M-3.9%201K12.22
    15 May 20192.6M-4.0%231K11.11
    30 April 20192.7M+6.2%236K11.29
    15 April 20192.5M+6.5%297K8.45
    29 March 20192.4M-5.8%658K3.59
    15 March 20192.5M+2.1%422K5.94
    28 February 20192.5M+1.8%408K6.02
    15 February 20192.4M+8.5%556K4.33
    31 January 20192.2M+2.8%222K10.02
    15 January 20192.2M-7.8%234K9.22
    31 December 20182.3M+1.6%356K6.58
    14 December 20182.3M-1.3%323K7.14
    30 November 20182.3M-9.3%173K13.46
    15 November 20182.6M-3.7%384K6.70
    31 October 20182.7M-4.7%73K36.40
    15 October 20182.8M-6.4%79K35.54
    28 September 20183.0M+0.6%131K22.86
    14 September 20183.0M-1.7%103K28.88
    31 August 20183.0M-8.4%65K46.59
    15 August 20183.3M-1.8%191K17.35
    31 July 20183.4M-0.2%179K18.79
    13 July 20183.4M+6.2%392K8.62
    29 June 20183.2M-9.7%147K21.62
    15 June 20183.5M+15.2%180K19.54
    31 May 20183.1M-4.6%104K29.42
    15 May 20183.2M-1.3%95K33.64
    30 April 20183.2M-0.3%121K26.78
    13 April 20183.3M+3.2%137K23.72
    29 March 20183.2M+9.1%215K14.71
    15 March 20182.9M+3.3%146K19.89
    28 February 20182.8M+3.4%101K27.71
    15 February 20182.7M+7.1%239K11.36
    31 January 20182.5M+6.0%439K5.77
    12 January 20182.4M+8.0%429K5.57
    29 December 20172.2M147K15.07
    Shares in millions (M) or thousands (K); hold the pointer on a figure for the exact count. Counts before a split are restated to today's shares. FINRA publishes consolidated short interest twice a month, about ten days after each settlement.