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HowShorted

How shorted is Eton Pharmaceuticals, Inc.? ETON

#1,555most shorted US stockof 3,805 ranked stocks, more shorted than 59%

5.40%
of shares outstanding reported short · settlement date 15 Sep 2026
vs previous report
+0.68
5 reports (~10 weeks)
+0.09
days to cover
3.52
Aggregate net short position time series for Eton Pharmaceuticals, 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 Eton Pharmaceuticals, 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
13 Aug 20264.81% 31 Jul 20265.00% 14 Aug 2026+0.19
14 May 20265.99% 30 Apr 20265.68% 15 May 2026−0.31
19 Mar 20267.08% 13 Mar 20266.94% 31 Mar 2026−0.14
6 Nov 202510.89% 31 Oct 202510.38% 14 Nov 2025−0.51
7 Aug 202512.38% 31 Jul 202513.29% 15 Aug 2025+0.91
13 May 20252.62% 30 Apr 20252.20% 15 May 2025−0.42
18 Mar 20250.88% 14 Mar 20251.28% 31 Mar 2025+0.40
12 Nov 20240.74% 31 Oct 20240.80% 15 Nov 2024+0.06

Fails to deliver

The SEC's fails-to-deliver figure for ETON: 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
816
24 Aug 2026
Highest in window
15,987
20 Mar 2026
Days with a balance
59
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for Eton Pharmaceuticals, 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 16K shares.

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Sector: Healthcare

History

Full reported short interest history
Settlement dateShort %Change
15 Sep 20265.40%+0.68
31 Aug 20264.72%−0.28
14 Aug 20265.00%+0.19
31 Jul 20264.81%+0.32
15 Jul 20264.49%−0.82
30 Jun 20265.31%+0.08
15 Jun 20265.23%+0.61
29 May 20264.62%−1.06
15 May 20265.68%−0.31
30 Apr 20265.99%−0.58
15 Apr 20266.57%−0.37
31 Mar 20266.94%−0.14
13 Mar 20267.08%−1.19
27 Feb 20268.27%+0.41
13 Feb 20267.86%+0.42
30 Jan 20267.44%−0.12
15 Jan 20267.56%−0.50
31 Dec 20258.06%−1.08
15 Dec 20259.14%−0.17
28 Nov 20259.31%−1.07
14 Nov 202510.38%−0.51
31 Oct 202510.89%−0.37
15 Oct 202511.26%−1.32
30 Sep 202512.58%−1.02
15 Sep 202513.60%−0.16
29 Aug 202513.76%+0.47
15 Aug 202513.29%+0.91
31 Jul 202512.38%+1.01
15 Jul 202511.37%+2.56
30 Jun 20258.81%+4.63
13 Jun 20254.18%+1.11
30 May 20253.07%+0.87
15 May 20252.20%−0.42
30 Apr 20252.62%+1.12
15 Apr 20251.50%+0.22
31 Mar 20251.28%+0.40
14 Mar 20250.88%−0.24
28 Feb 20251.12%−0.25
14 Feb 20251.37%+0.05
31 Jan 20251.32%+0.05
15 Jan 20251.27%+0.32
31 Dec 20240.95%−0.13
13 Dec 20241.08%+0.02
29 Nov 20241.06%+0.26
15 Nov 20240.80%+0.06
31 Oct 20240.74%−0.05
15 Oct 20240.79%+0.30
30 Sep 20240.49%+0.20
13 Sep 20240.29%+0.01
30 Aug 20240.28%+0.01
15 Aug 20240.27%−0.02
31 Jul 20240.29%+0.05
15 Jul 20240.24%−0.04
28 Jun 20240.28%−0.03
14 Jun 20240.31%+0.10
31 May 20240.21%−0.12
15 May 20240.33%−0.01
30 Apr 20240.34%−0.24
15 Apr 20240.58%−0.28
28 Mar 20240.86%−0.09
15 Mar 20240.95%+0.06
29 Feb 20240.89%−0.54
15 Feb 20241.43%−0.07
31 Jan 20241.50%+0.01
12 Jan 20241.49%−0.25
29 Dec 20231.74%+0.32
15 Dec 20231.42%−1.00
30 Nov 20232.42%−0.52
15 Nov 20232.94%−0.78
31 Oct 20233.72%−0.22
13 Oct 20233.94%+0.12
29 Sep 20233.82%+0.13
15 Sep 20233.69%−0.05
31 Aug 20233.74%−1.41
15 Aug 20235.15%+3.08
31 Jul 20232.07%−0.14
14 Jul 20232.21%+0.08
30 Jun 20232.13%−0.04
15 Jun 20232.17%−0.04
31 May 20232.21%+0.13
15 May 20232.08%−0.23
28 Apr 20232.31%+0.16
14 Apr 20232.15%+0.14
31 Mar 20232.01%−0.03
15 Mar 20232.04%+0.19
28 Feb 20231.85%+0.10
15 Feb 20231.75%−0.11
31 Jan 20231.86%−0.30
13 Jan 20232.16%−0.27
30 Dec 20222.43%+0.34
15 Dec 20222.09%−0.15
30 Nov 20222.24%−0.35
15 Nov 20222.59%−0.03
31 Oct 20222.62%+0.03
14 Oct 20222.59%−0.18
30 Sep 20222.77%−0.05
15 Sep 20222.82%−0.04
31 Aug 20222.86%−0.40
15 Aug 20223.26%−0.46
29 Jul 20223.72%+0.90
15 Jul 20222.82%−0.09
30 Jun 20222.91%−0.07
15 Jun 20222.98%−0.14
31 May 20223.12%−0.34
13 May 20223.46%−0.08
29 Apr 20223.54%+0.02
14 Apr 20223.52%+0.87
31 Mar 20222.65%−0.20
15 Mar 20222.85%+0.03
28 Feb 20222.82%−0.39
15 Feb 20223.21%−0.45
31 Jan 20223.66%+0.94
14 Jan 20222.72%+0.09
31 Dec 20212.63%+0.14
15 Dec 20212.49%−0.20
30 Nov 20212.69%−0.24
15 Nov 20212.93%+0.78
29 Oct 20212.15%+0.17
15 Oct 20211.98%−0.95
30 Sep 20212.93%−2.01
15 Sep 20214.94%−0.77
31 Aug 20215.71%−1.14
13 Aug 20216.85%+1.84
30 Jul 20215.01%−0.32
15 Jul 20215.33%−0.36
30 Jun 20215.69%−1.67
15 Jun 20217.36%+1.31
28 May 20216.05%−0.27
14 May 20216.32%+0.50
30 Apr 20215.82%+0.86
15 Apr 20214.96%+0.10
31 Mar 20214.86%+0.74
15 Mar 20214.12%+0.86
26 Feb 20213.26%−0.07
12 Feb 20213.33%−0.53
29 Jan 20213.86%−0.14
15 Jan 20214.00%+0.27
31 Dec 20203.73%+0.21
15 Dec 20203.52%−0.77
30 Nov 20204.29%+0.02
13 Nov 20204.27%−0.55
30 Oct 20204.82%−0.30
15 Oct 20205.12%+0.79
30 Sep 20204.33%+0.55
15 Sep 20203.78%+0.58
31 Aug 20203.20%−0.33
14 Aug 20203.53%+0.06
31 Jul 20203.47%−0.12
15 Jul 20203.59%+0.90
30 Jun 20202.69%+1.35
15 Jun 20201.34%−0.05
29 May 20201.39%−0.81
15 May 20202.20%−0.01
30 Apr 20202.21%−0.43
15 Apr 20202.64%−0.06
31 Mar 20202.70%+0.83
13 Mar 20201.87%+0.37
28 Feb 20201.50%+0.05
14 Feb 20201.45%−0.31
31 Jan 20201.76%0.00
15 Jan 20201.76%−0.56
31 Dec 20192.32%+0.27
13 Dec 20192.05%−0.11
29 Nov 20192.16%+0.04
15 Nov 20192.12%+0.23
31 Oct 20191.89%0.00
15 Oct 20191.89%–

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

Frequently asked questions

How shorted is Eton Pharmaceuticals, Inc. right now?
5.40% of Eton Pharmaceuticals, Inc.'s (ETON) shares outstanding were reported short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report. That makes it the 1,555th 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 ETON'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 ETON's days to cover?
3.52 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.