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HowShorted

How shorted is Biomerica, Inc.? BMRA

#3,194most shorted US stockof 3,805 ranked stocks, more shorted than 16%

1.20%
of shares outstanding reported short · settlement date 15 Sep 2026
vs previous report
−0.06
5 reports (~10 weeks)
+0.14
days to cover
1.00
Aggregate net short position time series for Biomerica, 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 Biomerica, Inc. days to cover

Fails to deliver

The SEC's fails-to-deliver figure for BMRA: 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.

Last balance on file
660
8 Sep 2026
Highest in window
120,861
17 Oct 2025
Days with a balance
51
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for Biomerica, 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 121K shares.

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Sector: Healthcare

History

Full reported short interest history
Settlement dateShort %Change
15 Sep 20261.20%−0.06
31 Aug 20261.26%+0.67
14 Aug 20260.59%−0.16
31 Jul 20260.75%+0.04
15 Jul 20260.71%−0.35
30 Jun 20261.06%−0.16
15 Jun 20261.22%−1.37
29 May 20262.59%−0.37
15 May 20262.96%+0.91
30 Apr 20262.05%+0.07
15 Apr 20261.98%−0.45
31 Mar 20262.43%+0.94
13 Mar 20261.49%−0.53
27 Feb 20262.02%−0.38
13 Feb 20262.40%−0.06
30 Jan 20262.46%−0.46
15 Jan 20262.92%−0.30
31 Dec 20253.22%+1.78
15 Dec 20251.44%+0.41
28 Nov 20251.03%−0.37
14 Nov 20251.40%+0.19
31 Oct 20251.21%−0.83
15 Oct 20252.04%−2.67
30 Sep 20254.71%+4.07
15 Apr 20250.64%−0.37
31 Mar 20251.01%−1.27
14 Feb 20252.28%+0.89
31 Jan 20251.39%−0.11
15 Jan 20251.50%−0.66
31 Dec 20242.16%−2.49
13 Dec 20244.65%+2.44
15 Nov 20242.21%−1.13
31 Oct 20243.34%+1.12
15 Oct 20242.22%+1.73
30 Aug 20240.49%+0.18
15 Aug 20240.31%−0.12
31 Jul 20240.43%−0.07
15 Jul 20240.50%+0.04
28 Jun 20240.46%−0.55
14 Jun 20241.01%−0.03
31 May 20241.04%+0.40
30 Apr 20240.64%+0.25
15 Apr 20240.39%−0.01
28 Mar 20240.40%−0.06
15 Mar 20240.46%−0.33
29 Feb 20240.79%−0.06
15 Feb 20240.85%+0.02
31 Jan 20240.83%−0.26
12 Jan 20241.09%−0.61
29 Dec 20231.70%−0.41
15 Dec 20232.11%−0.15
30 Nov 20232.26%+0.12
15 Nov 20232.14%−0.32
31 Oct 20232.46%+0.23
13 Oct 20232.23%−0.34
29 Sep 20232.57%−0.06
15 Sep 20232.63%−0.20
31 Aug 20232.83%−0.37
15 Aug 20233.20%+1.15
31 Jul 20232.05%−0.08
14 Jul 20232.13%−0.08
30 Jun 20232.21%+0.24
15 Jun 20231.97%+0.04
31 May 20231.93%+0.07
15 May 20231.86%−0.18
28 Apr 20232.04%−0.35
14 Apr 20232.39%−0.76
31 Mar 20233.15%−0.13
15 Mar 20233.28%−0.02
28 Feb 20233.30%−0.04
15 Feb 20233.34%+0.27
31 Jan 20233.07%+0.12
13 Jan 20232.95%−0.27
30 Dec 20223.22%−0.01
15 Dec 20223.23%−0.26
30 Nov 20223.49%−0.22
15 Nov 20223.71%−0.09
31 Oct 20223.80%+0.91
14 Oct 20222.89%+0.16
30 Sep 20222.73%+0.21
15 Sep 20222.52%−0.34
31 Aug 20222.86%−0.25
15 Aug 20223.11%−0.44
29 Jul 20223.55%+1.13
15 Jul 20222.42%−0.02
30 Jun 20222.44%−0.07
15 Jun 20222.51%−0.16
31 May 20222.67%−0.10
13 May 20222.77%−0.48
29 Apr 20223.25%−0.22
14 Apr 20223.47%−0.23
31 Mar 20223.70%+0.07
15 Mar 20223.63%−0.42
28 Feb 20224.05%−0.37
15 Feb 20224.42%−2.37
31 Jan 20226.79%−0.62
14 Jan 20227.41%−0.11
31 Dec 20217.52%+1.14
15 Dec 20216.38%−0.02
30 Nov 20216.40%−3.03
15 Nov 20219.43%+0.84
29 Oct 20218.59%−1.99
15 Oct 202110.58%+4.12
30 Sep 20216.46%−1.46
15 Sep 20217.92%−1.03
31 Aug 20218.95%−0.17
13 Aug 20219.12%+0.03
30 Jul 20219.09%+1.07
15 Jul 20218.02%+0.27
30 Jun 20217.75%−0.04
15 Jun 20217.79%+1.06
28 May 20216.73%−1.29
14 May 20218.02%−0.09
30 Apr 20218.11%−0.19
15 Apr 20218.30%+0.50
31 Mar 20217.80%−0.94
15 Mar 20218.74%−0.82
26 Feb 20219.56%−0.37
12 Feb 20219.93%−0.83
29 Jan 202110.76%+2.53
15 Jan 20218.23%+2.12
31 Dec 20206.11%−0.44
15 Dec 20206.55%−0.25
30 Nov 20206.80%+0.91
13 Nov 20205.89%+0.15
30 Oct 20205.74%+0.18
15 Oct 20205.56%−0.32
30 Sep 20205.88%−1.25
15 Sep 20207.13%+0.60
31 Aug 20206.53%+0.66
14 Aug 20205.87%+1.24
31 Jul 20204.63%−0.57
15 Jul 20205.20%+0.85
30 Jun 20204.35%+2.03
15 Jun 20202.32%+1.21
29 May 20201.11%+0.10
15 May 20201.01%−0.84
30 Apr 20201.85%−2.15
15 Apr 20204.00%+3.86
15 Jan 20200.14%+0.03
31 Dec 20190.11%+0.05
13 Dec 20190.06%−0.07
31 Oct 20190.13%−0.01
15 Oct 20190.14%–

Newest first. Scroll inside the table for earlier dates, back to 15 Oct 2019.

Frequently asked questions

How shorted is Biomerica, Inc. right now?
1.20% of Biomerica, Inc.'s (BMRA) shares outstanding were reported short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report. That makes it the 3,194th 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 BMRA'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 BMRA's days to cover?
1.00 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.