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Byrna Technologies Inc. short interest

2.0M shares of Byrna Technologies were sold short at the 15 October 2026 settlement, near the middle of its range over the last year (1.0M to 4.1M). Short sellers would need 2.3 days of normal trading to buy them back.

Shares sold short2.0Mat 15 Oct 2026
Change on the settlement before+93.5%-47% over a year
Days to cover2.33at 868K shares a day
Of shares in issue8.65%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 middle of its range over the last year (1.0M to 4.1M), and the share price moved -82% 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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    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 31 Mar 2020 as a table
    SettlementShares shortChangeAverage daily volumeDays to cover
    15 October 20262.0M+93.5%868K2.33
    30 September 20261.0M-24.5%262K3.99
    15 September 20261.4M+6.6%358K3.87
    31 August 20261.3M-15.6%312K4.18
    14 August 20261.5M-15.7%607K2.54
    31 July 20261.8M-13.1%1.1M1.73
    15 July 20262.1M-2.7%1.4M1.52
    30 June 20262.2M-24.1%681K3.18
    15 June 20262.8M-3.9%312K9.13
    29 May 20263.0M+6.5%439K6.75
    15 May 20262.8M-13.7%428K6.51
    30 April 20263.2M+21.5%572K5.64
    15 April 20262.7M+2.9%1.0M2.59
    31 March 20262.6M-12.9%431K5.98
    13 March 20263.0M-1.5%358K8.27
    27 February 20263.0M-6.4%277K10.85
    13 February 20263.2M-13.4%832K3.86
    30 January 20263.7M+2.3%480K7.72
    15 January 20263.6M-7.5%461K7.86
    31 December 20253.9M-3.4%479K8.17
    15 December 20254.1M+0.7%312K13.00
    28 November 20254.0M+0.6%282K14.29
    14 November 20254.0M+4.1%432K9.27
    31 October 20253.8M+0.7%383K10.03
    15 October 20253.8M-7.9%929K4.11
    30 September 20254.1M+2.2%498K8.32
    15 September 20254.1M+7.4%541K7.48
    29 August 20253.8M-7.5%421K8.96
    15 August 20254.1M+12.3%457K8.93
    31 July 20253.6M-11.4%657K5.52
    15 July 20254.1M+14.7%1.1M3.71
    30 June 20253.6M-1.1%495K7.22
    13 June 20253.6M+3.1%574K6.29
    30 May 20253.5M+2.8%333K10.53
    15 May 20253.4M-2.3%376K9.07
    30 April 20253.5M-3.7%433K8.06
    15 April 20253.6M+13.1%840K4.32
    31 March 20253.2M+14.6%709K4.52
    14 March 20252.8M-0.9%602K4.65
    28 February 20252.8M-2.2%642K4.40
    14 February 20252.9M+19.3%779K3.71
    31 January 20252.4M-1.1%412K5.88
    15 January 20252.4M-0.7%383K6.40
    31 December 20242.5M-20.3%593K4.16
    13 December 20243.1M+9.1%558K5.54
    29 November 20242.8M+3.3%600K4.73
    15 November 20242.7M+9.7%473K5.80
    31 October 20242.5M+4.6%388K6.46
    15 October 20242.4M+10.3%856K2.79
    30 September 20242.2M+2.2%631K3.44
    13 September 20242.1M+3.7%681K3.12
    30 August 20242.0M+6.0%137K14.95
    15 August 20241.9M-0.6%211K9.14
    31 July 20241.9M+1.6%169K11.46
    15 July 20241.9M+58.3%405K4.72
    28 June 20241.2M+4.7%465K2.60
    14 June 20241.2M+3.2%160K7.21
    31 May 20241.1M+9.4%178K6.26
    15 May 20241.0M+3.1%251K4.07
    30 April 2024991K+6.4%204K4.86
    15 April 2024932K+15.3%402K2.32
    28 March 2024808K+1.3%226K3.58
    15 March 2024797K-1.2%226K3.53
    29 February 2024807K+3.0%212K3.80
    15 February 2024784K+35.4%191K4.11
    31 January 2024579K+0.8%94K6.13
    12 January 2024574K-13.0%59K9.75
    29 December 2023660K+4.3%105K6.28
    15 December 2023632K-5.4%58K10.99
    30 November 2023668K-3.3%58K11.60
    15 November 2023691K+11.0%63K10.89
    31 October 2023622K-3.3%115K5.41
    13 October 2023644K+19.6%90K7.13
    29 September 2023539K-9.1%69K7.79
    15 September 2023592K-1.3%56K10.59
    31 August 2023600K-23.0%50K11.97
    15 August 2023779K-12.2%70K11.10
    31 July 2023887K-20.0%110K8.07
    14 July 20231.1M+6.3%272K4.08
    30 June 20231.0M+8.3%65K15.97
    15 June 2023963K+24.3%96K9.99
    31 May 2023775K+3.4%63K12.32
    15 May 2023750K-1.9%81K9.22
    28 April 2023764K+2.7%163K4.68
    14 April 2023744K+6.5%72K10.38
    31 March 2023699K+32.8%63K11.05
    15 March 2023526K-8.3%63K8.31
    28 February 2023574K+3.8%38K15.21
    15 February 2023553K+6.9%74K7.48
    31 January 2023517K-4.5%52K9.94
    13 January 2023541K-4.3%43K12.62
    30 December 2022566K+18.2%59K9.54
    15 December 2022479K-11.5%57K8.37
    30 November 2022541K+0.5%51K10.60
    15 November 2022539K-10.8%74K7.27
    31 October 2022604K-3.2%84K7.21
    14 October 2022624K+5.3%128K4.88
    30 September 2022592K-16.0%94K6.30
    15 September 2022705K+26.0%96K7.37
    31 August 2022560K-12.4%52K10.78
    15 August 2022639K-22.8%95K6.74
    29 July 2022828K-4.8%74K11.20
    15 July 2022869K+0.7%198K4.40
    30 June 2022863K-39.3%379K2.28
    15 June 20221.4M+10.1%221K6.44
    31 May 20221.3M+8.5%223K5.79
    13 May 20221.2M+9.3%200K5.96
    29 April 20221.1M+8.1%132K8.24
    14 April 20221.0M-9.7%172K5.87
    31 March 20221.1M-7.6%160K6.97
    15 March 20221.2M+21.8%243K4.96
    28 February 2022991K+14.8%269K3.68
    15 February 2022863K+9.5%227K3.81
    31 January 2022788K+24.5%135K5.84
    14 January 2022633K+3.7%137K4.61
    31 December 2021611K+10.9%132K4.63
    15 December 2021551K-21.8%241K2.29
    30 November 2021704K+30.8%242K2.91
    15 November 2021538K-24.5%274K1.97
    29 October 2021713K-27.7%273K2.61
    15 October 2021987K+15.6%353K2.80
    30 September 2021854K+49.7%302K2.83
    15 September 2021570K-8.4%391K1.46
    31 August 2021622K-3.1%329K1.89
    13 August 2021642K+15.0%187K3.43
    30 July 2021559K-1.8%360K1.55
    15 July 2021569K-0.5%121K4.69
    30 June 2021572K+329.6%407K1.41
    15 June 2021133K+66.7%130K1.03
    28 May 202180K+16.7%77K1.04
    14 May 202168K-69.2%112K1.00
    15 April 2021222K+3.2%563K1.00
    31 March 2021215K+4.0%333K1.00
    15 March 2021207K+1.1%348K1.00
    26 February 2021204K-20.6%470K1.00
    12 February 2021257K-51.6%530K1.00
    29 January 2021532K-0.3%361K1.47
    15 January 2021534K-0.2%512K1.04
    31 December 2020535K-6.7%252K2.12
    15 December 2020573K+6.9%482K1.19
    30 November 2020536K-1.3%243K2.21
    13 November 2020543K-0.1%241K2.25
    30 October 2020544K+0.7%352K1.54
    15 October 2020540K-0.6%225K2.40
    30 September 2020543K+10.6%356K1.53
    15 September 2020491K+43.3%393K1.25
    31 August 2020343K+23.5%776K1.00
    14 August 2020278K+158.8%623K1.00
    31 July 2020107K-4.5%663K1.00
    15 July 2020112K+1262.9%643K1.00
    30 June 20208K-69.2%1.3M1.00
    15 June 202027K+4.7%2.2M1.00
    29 May 202026K-24.7%241K1.00
    15 May 202034K+195.7%292K1.00
    30 April 202011K+5.2%161K1.00
    15 April 202011K-13.6%297K1.00
    31 March 202013K40K1.00
    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.