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Butterfly Network, Inc. short interest

33.6M shares of Butterfly Network were sold short at the 15 October 2026 settlement, near the top of its range over the last year (17.6M to 35.7M). Short sellers would need 6.2 days of normal trading to buy them back.

Shares sold short33.6Mat 15 Oct 2026
Change on the settlement before+6.2%+84% over a year
Days to cover6.19at 5.4M shares a day
Of shares in issue12.56%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 near the top of its range over the last year (17.6M to 35.7M), and the share price moved +171% 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.

How it compares

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    Every settlement since 26 Feb 2021 as a table
    SettlementShares shortChangeAverage daily volumeDays to cover
    15 October 202633.6M+6.2%5.4M6.19
    30 September 202631.6M-11.4%6.6M4.79
    15 September 202635.7M+4.9%4.2M8.43
    31 August 202634.1M+5.8%4.4M7.76
    14 August 202632.2M-1.6%7.2M4.46
    31 July 202632.7M+4.6%7.6M4.30
    15 July 202631.3M+8.7%8.7M3.59
    30 June 202628.7M+11.1%16.9M1.70
    15 June 202625.9M-4.7%5.6M4.58
    29 May 202627.2M+8.8%3.8M7.18
    15 May 202625.0M+3.4%5.0M5.03
    30 April 202624.1M-3.6%6.8M3.54
    15 April 202625.0M-0.1%3.4M7.39
    31 March 202625.1M-3.2%4.5M5.61
    13 March 202625.9M-12.5%4.9M5.26
    27 February 202629.6M+18.8%11.5M2.58
    13 February 202624.9M+7.2%5.1M4.84
    30 January 202623.2M-12.9%5.2M4.47
    15 January 202626.7M+5.6%6.2M4.30
    31 December 202525.3M+6.2%4.9M5.17
    15 December 202523.8M+14.5%4.8M4.94
    28 November 202520.8M+16.6%8.0M2.59
    14 November 202517.8M+1.4%7.3M2.43
    31 October 202517.6M-3.9%5.3M3.33
    15 October 202518.3M-7.6%8.3M2.21
    30 September 202519.8M+4.6%7.5M2.64
    15 September 202518.9M-0.2%2.2M8.54
    29 August 202519.0M-7.2%3.6M5.31
    15 August 202520.5M-7.9%4.0M5.17
    31 July 202522.2M-11.8%3.6M6.23
    15 July 202525.2M+1.8%3.6M6.97
    30 June 202524.7M+51.5%6.3M3.93
    13 June 202516.3M+11.3%2.8M5.86
    30 May 202514.7M+6.7%3.4M4.31
    15 May 202513.7M+1.0%2.8M4.94
    30 April 202513.6M-1.2%2.0M6.72
    15 April 202513.8M+5.5%3.6M3.80
    31 March 202513.0M+12.5%3.3M3.92
    14 March 202511.6M-5.9%4.0M2.91
    28 February 202512.3M-3.8%4.6M2.67
    14 February 202512.8M-14.8%4.9M2.62
    31 January 202515.0M-17.9%4.4M3.38
    15 January 202518.3M+6.9%5.3M3.44
    31 December 202417.1M+4.2%3.3M5.12
    13 December 202416.4M+7.9%3.1M5.31
    29 November 202415.2M+19.9%3.6M4.20
    15 November 202412.7M-4.0%4.3M2.99
    31 October 202413.2M+1.7%1.6M8.14
    15 October 202413.0M-0.1%1.7M7.62
    30 September 202413.0M-10.0%2.3M5.79
    13 September 202414.5M+1.5%5.1M2.82
    30 August 202414.3M-0.6%980K14.56
    15 August 202414.4M+2.8%1.3M11.13
    31 July 202414.0M-2.8%1.0M13.43
    15 July 202414.4M-34.3%2.3M6.34
    28 June 202421.9M-0.1%3.6M5.99
    14 June 202421.9M+1.2%1.1M20.12
    31 May 202421.6M-10.0%1.2M17.96
    15 May 202424.0M+4.2%2.1M11.40
    30 April 202423.0M+2.0%1.5M15.75
    15 April 202422.6M+3.7%1.2M19.18
    28 March 202421.8M+9.4%1.1M19.21
    15 March 202419.9M+6.2%1.9M10.48
    29 February 202418.7M+1.2%3.5M5.28
    15 February 202418.5M+1.3%1.3M14.01
    31 January 202418.3M+8.2%1.3M14.30
    12 January 202416.9M+3.9%2.2M7.74
    29 December 202316.3M-6.9%2.1M7.81
    15 December 202317.5M-0.3%2.2M8.00
    30 November 202317.5M-1.4%1.3M13.05
    15 November 202317.8M-1.2%2.2M8.25
    31 October 202318.0M-11.4%1.9M9.35
    13 October 202320.3M-1.6%2.3M8.68
    29 September 202320.6M-0.8%3.0M6.82
    15 September 202320.8M-12.5%2.4M8.52
    31 August 202323.7M-6.7%1.5M15.86
    15 August 202325.5M+4.7%1.9M13.12
    31 July 202324.3M+2.0%1.6M15.52
    14 July 202323.8M-0.7%1.8M13.23
    30 June 202324.0M-2.1%1.6M14.93
    15 June 202324.5M-3.5%2.0M12.17
    31 May 202325.4M-2.5%1.9M13.17
    15 May 202326.1M+4.3%2.4M10.87
    28 April 202325.0M+1.1%2.0M12.38
    14 April 202324.7M+32.5%10.4M2.39
    31 March 202318.7M+3.4%1.7M10.94
    15 March 202318.0M-0.6%1.7M10.74
    28 February 202318.2M+8.1%1.8M10.24
    15 February 202316.8M-0.4%2.1M8.13
    31 January 202316.9M-9.0%1.6M10.37
    13 January 202318.5M+0.9%1.7M11.04
    30 December 202218.4M-4.5%2.8M6.57
    15 December 202219.2M+0.8%2.5M7.83
    30 November 202219.1M+0.1%1.4M14.05
    15 November 202219.1M-13.9%2.9M6.49
    31 October 202222.2M-3.2%1.3M16.59
    14 October 202222.9M-1.1%1.9M12.04
    30 September 202223.2M-4.4%2.1M11.23
    15 September 202224.2M+9.4%2.4M10.11
    31 August 202222.1M+17.0%3.1M7.05
    15 August 202218.9M-21.1%4.5M4.20
    29 July 202224.0M+0.4%1.7M14.29
    15 July 202223.9M+4.9%1.8M13.04
    30 June 202222.8M-0.3%2.1M11.09
    15 June 202222.8M+5.6%2.3M9.97
    31 May 202221.6M-12.4%2.0M10.74
    13 May 202224.7M+11.9%3.1M7.92
    29 April 202222.0M+8.9%2.1M10.50
    14 April 202220.2M+6.4%2.0M10.04
    31 March 202219.0M+4.3%2.5M7.54
    15 March 202218.2M-4.8%3.8M4.85
    28 February 202219.1M-2.6%3.3M5.80
    15 February 202219.6M-6.8%1.7M11.40
    31 January 202221.1M-3.3%3.0M7.01
    14 January 202221.8M-0.8%3.9M5.58
    31 December 202122.0M-7.9%3.6M6.06
    15 December 202123.9M+2.9%3.6M6.71
    30 November 202123.2M+22.1%4.5M5.19
    15 November 202119.0M-1.0%2.9M6.49
    29 October 202119.2M+1.1%1.6M12.19
    15 October 202119.0M-0.9%1.1M16.75
    30 September 202119.1M+23.7%3.7M5.14
    15 September 202115.5M+7.9%2.5M6.17
    31 August 202114.3M-2.6%2.3M6.25
    13 August 202114.7M-2.0%2.0M7.48
    30 July 202115.0M-2.1%1.6M9.47
    15 July 202115.4M-5.0%3.2M4.80
    30 June 202116.2M+12.6%4.6M3.48
    15 June 202114.4M+0.0%2.7M5.38
    28 May 202114.4M+5.5%2.5M5.82
    14 May 202113.6M+16.9%2.7M5.04
    30 April 202111.6M+18.6%1.8M6.53
    15 April 20219.8M+19.7%1.9M5.06
    31 March 20218.2M+57.7%3.9M2.09
    15 March 20215.2M+60.9%3.1M1.70
    26 February 20213.2M4.6M1.00
    Shares in millions (M) or thousands (K); hold the pointer on a figure for the exact count. FINRA publishes consolidated short interest twice a month, about ten days after each settlement.