Skip to content
HowShorted

How shorted is Dyne Therapeutics, Inc.? DYN

The ticker DYN previously referred to Dynegy Inc. (to 2018).

11.49%
of shares outstanding reported short · settlement date 14 Aug 2026
vs previous report
−0.27
5 reports (~10 weeks)
−4.11
days to cover
10.95
Aggregate net short position time series for Dyne Therapeutics, 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 Dyne Therapeutics, 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
29 Jul 202615.05% 15 Jul 202611.76% 31 Jul 2026−3.29
11 May 202614.52% 30 Apr 202614.69% 15 May 2026+0.17
2 Mar 202613.53% 27 Feb 202613.38% 13 Mar 2026−0.15
12 Jan 202612.11% 31 Dec 202513.23% 15 Jan 2026+1.12
5 Nov 202510.59% 31 Oct 202511.98% 14 Nov 2025+1.39
28 Jul 202513.84% 15 Jul 202511.46% 31 Jul 2025−2.38
8 May 202513.07% 30 Apr 202520.41% 15 May 2025+7.34
27 Feb 202510.71% 14 Feb 202511.46% 28 Feb 2025+0.75

Fails to deliver

The SEC's fails-to-deliver figure for DYN: 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
2,345
14 Sep 2026
Highest in window
285,203
11 Mar 2026
Days with a balance
52
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for Dyne Therapeutics, 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 285K shares.

Embed this chart

Paste this snippet to embed the interactive chart. It updates with each FINRA report and keeps the source attribution. Preview

Share on XRedditLinkedIn
Cite this page
Plain
Wikipedia
BibTeX

Sector: Healthcare · By year: 2021 · 2022 · 2023 · 2024 · 2025 · 2026

History

Full reported short interest history
Settlement dateShort %Change
14 Aug 202611.49%−0.27
31 Jul 202611.76%−3.29
15 Jul 202615.05%−0.56
30 Jun 202615.61%−0.36
15 Jun 202615.97%+0.37
29 May 202615.60%+0.91
15 May 202614.69%+0.17
30 Apr 202614.52%−0.68
15 Apr 202615.20%+0.87
31 Mar 202614.33%+0.95
13 Mar 202613.38%−0.15
27 Feb 202613.53%+0.12
13 Feb 202613.41%−0.03
30 Jan 202613.44%+0.21
15 Jan 202613.23%+1.12
31 Dec 202512.11%+1.64
15 Dec 202510.47%−1.75
28 Nov 202512.22%+0.24
14 Nov 202511.98%+1.39
31 Oct 202510.59%−1.43
15 Oct 202512.02%−0.47
30 Sep 202512.49%+1.73
15 Sep 202510.76%−0.52
29 Aug 202511.28%−0.77
15 Aug 202512.05%+0.59
31 Jul 202511.46%−2.38
15 Jul 202513.84%−0.56
30 Jun 202514.40%−3.74
13 Jun 202518.14%−4.32
30 May 202522.46%+2.05
15 May 202520.41%+7.34
30 Apr 202513.07%−1.93
15 Apr 202515.00%+3.86
31 Mar 202511.14%−1.03
14 Mar 202512.17%+0.71
28 Feb 202511.46%+0.75
14 Feb 202510.71%+1.32
31 Jan 20259.39%+0.15
15 Jan 20259.24%−1.09
31 Dec 202410.33%+0.11
13 Dec 202410.22%+0.05
29 Nov 202410.17%+0.19
15 Nov 20249.98%+0.08
31 Oct 20249.90%+0.83
15 Oct 20249.07%+0.23
30 Sep 20248.84%+1.21
13 Sep 20247.63%+0.79
30 Aug 20246.84%−0.51
15 Aug 20247.35%−3.96
31 Jul 202411.31%+0.73
15 Jul 202410.58%+0.19
28 Jun 202410.39%−1.09
14 Jun 202411.48%−0.10
31 May 202411.58%+0.87
15 May 202410.71%−0.31
30 Apr 202411.02%−3.68
15 Apr 202414.70%+1.54
28 Mar 202413.16%+2.04
15 Mar 202411.12%+0.35
29 Feb 202410.77%−1.04
15 Feb 202411.81%−2.13
31 Jan 202413.94%+0.96
12 Jan 202412.98%−2.95
29 Dec 202315.93%+0.08
15 Dec 202315.85%+1.69
30 Nov 202314.16%+2.01
15 Nov 202312.15%+0.46
31 Oct 202311.69%+1.58
13 Oct 202310.11%+0.49
29 Sep 20239.62%+0.61
15 Sep 20239.01%−0.21
31 Aug 20239.22%−0.12
15 Aug 20239.34%+0.83
31 Jul 20238.51%−0.78
14 Jul 20239.29%−0.10
30 Jun 20239.39%+1.03
15 Jun 20238.36%−0.12
31 May 20238.48%−0.08
15 May 20238.56%−0.81
28 Apr 20239.37%+0.01
14 Apr 20239.36%+1.14
31 Mar 20238.22%+0.41
15 Mar 20237.81%+0.57
28 Feb 20237.24%+0.15
15 Feb 20237.09%+0.27
31 Jan 20236.82%+1.37
13 Jan 20235.45%+0.76
30 Dec 20224.69%−0.60
15 Dec 20225.29%+0.11
30 Nov 20225.18%−0.28
15 Nov 20225.46%+0.13
31 Oct 20225.33%+0.98
14 Oct 20224.35%+0.95
30 Sep 20223.40%+0.95
15 Sep 20222.45%+0.12
31 Aug 20222.33%+0.36
15 Aug 20221.97%−5.42
30 Jun 20227.39%+0.08
15 Jun 20227.31%+4.25
31 May 20223.06%−0.09
13 May 20223.15%−0.08
29 Apr 20223.23%+0.03
14 Apr 20223.20%+0.03
31 Mar 20223.17%−0.09
15 Mar 20223.26%−1.32
28 Feb 20224.58%+0.14
15 Feb 20224.44%+0.23
31 Jan 20224.21%−1.07
14 Jan 20225.28%−0.14
31 Dec 20215.42%+0.03
15 Dec 20215.39%+0.08
30 Nov 20215.31%+0.15
15 Nov 20215.16%+0.67
29 Oct 20214.49%+0.29
15 Oct 20214.20%+0.12
30 Sep 20214.08%+0.86
15 Sep 20213.22%+0.29
31 Aug 20212.93%−1.40
13 Aug 20214.33%+0.34
30 Jul 20213.99%+0.34
15 Jul 20213.65%+0.07
30 Jun 20213.58%−0.02
15 Jun 20213.60%+0.02
28 May 20213.58%−0.13
14 May 20213.71%+0.25
30 Apr 20213.46%−0.90
15 Apr 20214.36%+0.45
31 Mar 20213.91%−0.23
15 Mar 20214.14%+0.34
26 Feb 20213.80%+0.27
12 Feb 20213.53%+0.33
29 Jan 20213.20%+0.13
15 Jan 20213.07%−0.53
31 Dec 20203.60%+1.52
15 Dec 20202.08%−0.61
30 Nov 20202.69%+0.04
13 Nov 20202.65%–

Newest first. Scroll inside the table for earlier dates, back to 13 Nov 2020.

Frequently asked questions

How shorted is Dyne Therapeutics, Inc. right now?
11.49% of Dyne Therapeutics, Inc.'s (DYN) shares outstanding were reported short for settlement date 14 Aug 2026, per FINRA's consolidated short interest report.
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 DYN'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 DYN's days to cover?
10.95 days for settlement date 14 Aug 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.