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HowShorted

How shorted is Byrna Technologies Inc.? BYRN

#1,347most shorted US stockof 3,805 ranked stocks, more shorted than 64%

6.11%
of shares outstanding reported short · settlement date 15 Sep 2026
vs previous report
+0.38
5 reports (~10 weeks)
−3.42
days to cover
3.87
Aggregate net short position time series for Byrna Technologies Inc.

Markers along the chart's base: ▲ results announced (an 8-K reporting results was filed) ▲ quarterly or annual report filed. Dates are SEC filing dates; hover a point to see events since the previous settlement.

Days to cover

FINRA's own figure: reported shares short divided by the stock's average daily trading volume, published alongside each settlement. It expresses the short position in days of typical trading rather than as a percentage of the company; the two can move differently.

Aggregate net short position time series for Byrna Technologies Inc. days to cover

Short interest around results

For each results announcement (an 8-K reporting results, by its SEC filing date), the FINRA settlement before it and the first one after. Settlements fall twice a month, so the two figures can sit up to a month apart and much else changes in between: this shows what was reported, not why.

Reported short interest before and after each results announcement
Results filedSettlement beforeSettlement afterChange
9 Jul 20269.53% 30 Jun 20269.27% 15 Jul 2026−0.26
9 Apr 202611.36% 31 Mar 202611.70% 15 Apr 2026+0.34
9 Mar 202613.26% 27 Feb 202613.06% 13 Mar 2026−0.20
5 Feb 202616.32% 30 Jan 202614.17% 13 Feb 2026−2.15
8 Dec 202517.73% 28 Nov 202517.85% 15 Dec 2025+0.12
9 Oct 202518.25% 30 Sep 202516.79% 15 Oct 2025−1.46
4 Sep 202516.62% 29 Aug 202517.85% 15 Sep 2025+1.23
10 Jul 202515.77% 30 Jun 202518.05% 15 Jul 2025+2.28

Fails to deliver

The SEC's fails-to-deliver figure for BYRN: the aggregate net balance of shares that failed to be delivered at each settlement date, published by the SEC twice a month and shown here verbatim for the trailing window. A balance is not a daily flow, and a fail has many ordinary causes; the SEC says it cannot guarantee the accuracy of the data. See what fails to deliver are and the largest balances today.

Latest balance
1,319
14 Sep 2026
Highest in window
502,317
1 Oct 2025
Days with a balance
123
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for Byrna Technologies Inc. fails to deliver

Source: U.S. Securities and Exchange Commission, fails-to-deliver data (public domain). Only settlement days with a positive balance appear; the largest balance in the window was 502K shares.

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Sector: Technology

History

Full reported short interest history
Settlement dateShort %Change
15 Sep 20266.11%+0.38
31 Aug 20265.73%−1.06
14 Aug 20266.79%−1.27
31 Jul 20268.06%−1.21
15 Jul 20269.27%−0.26
30 Jun 20269.53%−3.03
15 Jun 202612.56%−0.51
29 May 202613.07%+0.80
15 May 202612.27%−1.94
30 Apr 202614.21%+2.51
15 Apr 202611.70%+0.34
31 Mar 202611.36%−1.70
13 Mar 202613.06%−0.20
27 Feb 202613.26%−0.91
13 Feb 202614.17%−2.15
30 Jan 202616.32%+0.36
15 Jan 202615.96%−1.28
31 Dec 202517.24%−0.61
15 Dec 202517.85%+0.12
28 Nov 202517.73%+0.12
14 Nov 202517.61%+0.70
31 Oct 202516.91%+0.12
15 Oct 202516.79%−1.46
30 Sep 202518.25%+0.40
15 Sep 202517.85%+1.23
29 Aug 202516.62%−1.34
15 Aug 202517.96%+1.97
31 Jul 202515.99%−2.06
15 Jul 202518.05%+2.28
30 Jun 202515.77%−0.18
13 Jun 202515.95%+0.49
30 May 202515.46%+0.42
15 May 202515.04%−0.36
30 Apr 202515.40%−0.60
15 Apr 202516.00%+1.85
31 Mar 202514.15%+1.79
14 Mar 202512.36%−0.11
28 Feb 202512.47%−0.29
14 Feb 202512.76%+2.00
31 Jan 202510.76%−0.12
15 Jan 202510.88%−0.08
31 Dec 202410.96%−2.78
13 Dec 202413.74%+1.14
29 Nov 202412.60%+0.41
15 Nov 202412.19%+1.07
31 Oct 202411.12%+0.50
15 Oct 202410.62%+1.10
30 Sep 20249.52%+0.21
13 Sep 20249.31%+0.33
30 Aug 20248.98%+0.51
15 Aug 20248.47%−0.05
31 Jul 20248.52%+0.13
15 Jul 20248.39%+3.08
28 Jun 20245.31%+0.24
14 Jun 20245.07%+0.16
31 May 20244.91%+0.42
15 May 20244.49%+0.13
30 Apr 20244.36%+0.26
15 Apr 20244.10%+0.43
28 Mar 20243.67%+0.05
15 Mar 20243.62%−0.05
29 Feb 20243.67%+0.11
15 Feb 20243.56%+0.93
31 Jan 20242.63%+0.02
12 Jan 20242.61%−0.39
29 Dec 20233.00%+0.12
15 Dec 20232.88%−0.16
30 Nov 20233.04%−0.10
15 Nov 20233.14%+0.31
31 Oct 20232.83%−0.10
13 Oct 20232.93%+0.48
29 Sep 20232.45%−0.24
15 Sep 20232.69%−0.04
31 Aug 20232.73%−0.82
15 Aug 20233.55%−0.49
31 Jul 20234.04%−1.01
14 Jul 20235.05%+0.28
30 Jun 20234.77%+0.36
15 Jun 20234.41%+0.87
31 May 20233.54%+0.11
15 May 20233.43%−0.06
28 Apr 20233.49%+0.09
14 Apr 20233.40%+0.20
31 Mar 20233.20%+0.79
15 Mar 20232.41%−0.21
28 Feb 20232.62%+0.09
15 Feb 20232.53%+0.21
31 Jan 20232.32%−0.12
13 Jan 20232.44%−0.11
30 Dec 20222.55%+0.40
15 Dec 20222.15%−0.28
30 Nov 20222.43%+0.01
15 Nov 20222.42%−0.30
31 Oct 20222.72%−0.09
14 Oct 20222.81%+0.15
30 Sep 20222.66%−0.28
15 Sep 20222.94%+0.61
31 Aug 20222.33%−0.33
15 Aug 20222.66%−0.79
29 Jul 20223.45%−0.17
15 Jul 20223.62%−0.15
30 Jun 20223.77%−2.44
15 Jun 20226.21%+0.57
31 May 20225.64%+0.44
13 May 20225.20%+0.44
29 Apr 20224.76%+0.36
14 Apr 20224.40%−0.29
31 Mar 20224.69%−0.38
15 Mar 20225.07%+0.91
28 Feb 20224.16%+0.54
15 Feb 20223.62%+0.28
31 Jan 20223.34%+0.66
14 Jan 20222.68%+0.09
31 Dec 20212.59%+0.26
15 Dec 20212.33%−0.65
30 Nov 20212.98%+0.70
15 Nov 20212.28%−0.74
29 Oct 20213.02%−1.16
15 Oct 20214.18%+0.57
30 Sep 20213.61%+0.85
15 Sep 20212.76%−0.25
31 Aug 20213.01%−0.09
13 Aug 20213.10%+0.40
30 Jul 20212.70%−0.05
15 Jul 20212.75%−0.01
30 Jun 20212.76%+2.67
15 Jun 20210.09%+0.04
28 May 20210.05%0.00
14 May 20210.05%–

Newest first. Scroll inside the table for earlier dates, back to 14 May 2021.

Frequently asked questions

How shorted is Byrna Technologies Inc. right now?
6.11% of Byrna Technologies Inc.'s (BYRN) shares outstanding were reported short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report. That makes it the 1,347th most shorted US stock, out of 3,805 we rank.
What does this number include?
FINRA member firms must report their short positions in all US equities twice a month; FINRA consolidates them per security. We divide that official share count by the company's shares outstanding from its SEC filings. This is the regulatory figure, not a daily estimate.
Why does it only update twice a month?
US short interest is reported for settlement on the 15th and the last business day of each month, and FINRA publishes the consolidated figures about nine business days later. That cadence is set by regulation; no daily official figure exists.
Is this BYRN's short float?
No. This is short interest as a percentage of shares outstanding, the count in the company's SEC filings. "Short float" divides the same FINRA short count by the public float, which excludes closely held shares, so it comes out higher for the same company. We publish no float estimates: the float is not a regulatory figure.
What is BYRN's days to cover?
3.87 days for settlement date 15 Sep 2026: FINRA's own short interest ratio, the reported shares short divided by average daily trading volume. It is published in the same FINRA file and shown verbatim; we hold no volume data ourselves.
Which funds are short?
US public short interest is aggregate-only: individual short sellers are not named. Only some EU markets publish named positions.