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HowShorted

How shorted is Protalix BioTherapeutics, Inc.? PLX

#2,226most shorted US stockof 3,805 ranked stocks, more shorted than 41%

3.57%
of shares outstanding reported short · settlement date 15 Sep 2026
vs previous report
−0.36
5 reports (~10 weeks)
−0.85
days to cover
3.82
Aggregate net short position time series for Protalix BioTherapeutics, 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 Protalix BioTherapeutics, 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
12 Aug 20264.81% 31 Jul 20264.44% 14 Aug 2026−0.37
13 May 20266.27% 30 Apr 20265.19% 15 May 2026−1.08
18 Mar 20265.43% 13 Mar 20265.84% 31 Mar 2026+0.41
13 Nov 20255.21% 31 Oct 20255.10% 14 Nov 2025−0.11
9 May 20251.28% 30 Apr 20251.26% 15 May 2025−0.02
17 Mar 20250.83% 14 Mar 20251.26% 31 Mar 2025+0.43
14 Nov 20244.21% 31 Oct 20244.32% 15 Nov 2024+0.11
14 Aug 20244.75% 31 Jul 20244.76% 15 Aug 2024+0.01

Fails to deliver

The SEC's fails-to-deliver figure for PLX: 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
9,627
14 Sep 2026
Highest in window
68,200
22 Dec 2025
Days with a balance
65
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for Protalix BioTherapeutics, 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 68K shares.

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Sector: Healthcare

History

Full reported short interest history
Settlement dateShort %Change
15 Sep 20263.57%−0.36
31 Aug 20263.93%−0.51
14 Aug 20264.44%−0.37
31 Jul 20264.81%+0.20
15 Jul 20264.61%+0.19
30 Jun 20264.42%−0.43
15 Jun 20264.85%−0.03
29 May 20264.88%−0.31
15 May 20265.19%−1.08
30 Apr 20266.27%+0.40
15 Apr 20265.87%+0.03
31 Mar 20265.84%+0.41
13 Mar 20265.43%+0.24
27 Feb 20265.19%−0.44
13 Feb 20265.63%+0.51
30 Jan 20265.12%−0.54
15 Jan 20265.66%+0.42
31 Dec 20255.24%−0.25
15 Dec 20255.49%+0.32
28 Nov 20255.17%+0.07
14 Nov 20255.10%−0.11
31 Oct 20255.21%−0.69
15 Oct 20255.90%+0.69
30 Sep 20255.21%+0.62
15 Sep 20254.59%+0.08
29 Aug 20254.51%−0.21
15 Aug 20254.72%+3.20
13 Jun 20251.52%+0.29
30 May 20251.23%−0.03
15 May 20251.26%−0.02
30 Apr 20251.28%+0.33
15 Apr 20250.95%−0.31
31 Mar 20251.26%+0.43
14 Mar 20250.83%−6.03
28 Feb 20256.86%+0.36
14 Feb 20256.50%+0.66
31 Jan 20255.84%+0.42
15 Jan 20255.42%+1.03
31 Dec 20244.39%+0.02
13 Dec 20244.37%0.00
29 Nov 20244.37%+0.05
15 Nov 20244.32%+0.11
31 Oct 20244.21%0.00
15 Oct 20244.21%−0.04
30 Sep 20244.25%−0.20
13 Sep 20244.45%−0.20
30 Aug 20244.65%−0.11
15 Aug 20244.76%+0.01
31 Jul 20244.75%−0.22
15 Jul 20244.97%−2.52
28 Jun 20247.49%−0.61
14 Jun 20248.10%−0.55
31 May 20248.65%+0.08
15 May 20248.57%−0.99
30 Apr 20249.56%+0.38
15 Apr 20249.18%+0.34
28 Mar 20248.84%−0.30
15 Mar 20249.14%+0.32
29 Feb 20248.82%+0.39
15 Feb 20248.43%+0.42
31 Jan 20248.01%−0.19
12 Jan 20248.20%+0.20
29 Dec 20238.00%−0.13
15 Dec 20238.13%−0.21
30 Nov 20238.34%+0.17
15 Nov 20238.17%+0.23
31 Oct 20237.94%+0.07
13 Oct 20237.87%−0.08
29 Sep 20237.95%+0.25
15 Sep 20237.70%−0.27
31 Aug 20237.97%−0.41
15 Aug 20238.38%+0.14
31 Jul 20238.24%−1.33
14 Jul 20239.57%−1.59
30 Jun 202311.16%+0.43
15 Jun 202310.73%−0.39
31 May 202311.12%−1.31
15 May 202312.43%−2.24
28 Apr 202314.67%+1.94
14 Apr 202312.73%+2.03
31 Mar 202310.70%+0.54
15 Mar 202310.16%+0.71
28 Feb 20239.45%+2.85
15 Feb 20236.60%+0.13
31 Jan 20236.47%+2.40
13 Jan 20234.07%+0.49
30 Dec 20223.58%+0.19
15 Dec 20223.39%−0.01
30 Nov 20223.40%+0.09
15 Nov 20223.31%−0.03
31 Oct 20223.34%+0.24
14 Oct 20223.10%0.00
30 Sep 20223.10%+0.01
15 Sep 20223.09%+0.07
31 Aug 20223.02%−0.10
15 Aug 20223.12%−1.38
29 Jul 20224.50%−0.19
15 Jul 20224.69%−0.39
30 Jun 20225.08%−0.47
15 Jun 20225.55%−0.37
31 May 20225.92%−2.26
13 May 20228.18%−1.60
29 Apr 20229.78%−2.42
14 Apr 202212.20%+3.45
31 Mar 20228.75%−0.01
15 Mar 20228.76%−0.76
28 Feb 20229.52%−0.17
15 Feb 20229.69%−0.37
31 Jan 202210.06%+0.19
14 Jan 20229.87%−0.14
31 Dec 202110.01%−1.64
15 Dec 202111.65%−1.38
30 Nov 202113.03%−1.51
15 Nov 202114.54%−0.44
29 Oct 202114.98%−1.60
15 Oct 202116.58%+0.66
30 Sep 202115.92%+0.87
15 Sep 202115.05%+4.40
31 Aug 202110.65%+5.33
13 Aug 20215.32%−0.27
30 Jul 20215.59%+0.15
15 Jul 20215.44%+0.84
30 Jun 20214.60%+0.39
15 Jun 20214.21%−1.17
28 May 20215.38%−0.38
14 May 20215.76%+0.24
30 Apr 20215.52%+4.00
29 Jan 20211.52%+0.68
15 Jan 20210.84%−0.03
31 Dec 20200.87%+0.02
15 Dec 20200.85%−0.03
30 Nov 20200.88%+0.49
13 Nov 20200.39%−0.01
30 Oct 20200.40%−0.10
15 Oct 20200.50%−1.06
15 Sep 20201.56%+0.05
31 Aug 20201.51%+0.02
14 Aug 20201.49%−7.00
30 Apr 20208.49%+1.00
15 Apr 20207.49%+0.86
31 Mar 20206.63%+1.74
13 Mar 20204.89%+3.38
13 Dec 20191.51%−0.27
29 Nov 20191.78%−0.23
15 Nov 20192.01%−0.05
31 Oct 20192.06%+0.05
15 Oct 20192.01%+0.07
30 Sep 20191.94%−0.09
13 Sep 20192.03%+0.44
30 Aug 20191.59%−0.04
15 Aug 20191.63%−0.01
31 Jul 20191.64%+0.05
15 Jul 20191.59%−0.07
28 Jun 20191.66%−0.04
14 Jun 20191.70%−0.10
31 May 20191.80%+0.05
15 May 20191.75%−0.10
30 Apr 20191.85%−0.05
15 Apr 20191.90%+0.03
29 Mar 20191.87%+0.01
15 Mar 20191.86%−0.05
28 Feb 20191.91%−0.02
15 Feb 20191.93%−0.02
31 Jan 20191.95%−0.11
15 Jan 20192.06%+0.14
31 Dec 20181.92%−0.04
14 Dec 20181.96%−0.07
30 Nov 20182.03%−0.02
15 Nov 20182.05%−0.04
31 Oct 20182.09%−0.17
15 Oct 20182.26%+0.60
28 Sep 20181.66%+0.75
14 Sep 20180.91%+0.06
31 Aug 20180.85%−0.24
15 Aug 20181.09%−0.28
31 Jul 20181.37%−0.35
13 Jul 20181.72%+0.32
29 Jun 20181.40%−0.27
15 Jun 20181.67%−1.82
31 May 20183.49%−0.11
15 May 20183.60%−0.06
30 Apr 20183.66%+0.08
13 Apr 20183.58%+0.33
29 Mar 20183.25%−0.02
15 Mar 20183.27%−0.13
28 Feb 20183.40%−0.07
15 Feb 20183.47%+0.36
31 Jan 20183.11%+0.44
12 Jan 20182.67%+0.89
29 Dec 20171.78%–

Newest first. Scroll inside the table for earlier dates, back to 29 Dec 2017.

Frequently asked questions

How shorted is Protalix BioTherapeutics, Inc. right now?
3.57% of Protalix BioTherapeutics, Inc.'s (PLX) shares outstanding were reported short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report. That makes it the 2,226th 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 PLX'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 PLX's days to cover?
3.82 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.