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HowShorted

How shorted was Great Lakes Dredge & Dock CORP? GLDD

Great Lakes Dredge & Dock CORP left the US market in 2026. This page is a frozen archive of its reported short interest, ending 31 Mar 2026. The ticker GLDD no longer refers to this company and may since have been reassigned.
2.35%
of shares outstanding reported short · settlement date 31 Mar 2026
vs previous report
−2.05
5 reports (~10 weeks)
−0.14
days to cover
1.00
Aggregate net short position time series for Great Lakes Dredge & Dock CORP

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 Great Lakes Dredge & Dock CORP 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
23 Feb 20263.67% 13 Feb 20263.66% 27 Feb 2026−0.01
4 Nov 20251.45% 31 Oct 20251.98% 14 Nov 2025+0.53
5 Aug 20251.27% 31 Jul 20251.21% 15 Aug 2025−0.06
6 May 20251.45% 30 Apr 20251.33% 15 May 2025−0.12
18 Feb 20251.06% 14 Feb 20251.12% 28 Feb 2025+0.06
5 Nov 20241.00% 31 Oct 20241.26% 15 Nov 2024+0.26
6 Aug 20242.03% 31 Jul 20241.44% 15 Aug 2024−0.59
7 May 20242.35% 30 Apr 20241.96% 15 May 2024−0.39
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Sector: Industrials

History

Full reported short interest history
Settlement dateShort %Change
31 Mar 20262.35%−2.05
13 Mar 20264.40%+0.74
27 Feb 20263.66%−0.01
13 Feb 20263.67%+0.61
30 Jan 20263.06%+0.57
15 Jan 20262.49%+0.13
31 Dec 20252.36%−0.03
15 Dec 20252.39%+0.19
28 Nov 20252.20%+0.22
14 Nov 20251.98%+0.53
31 Oct 20251.45%+0.42
15 Oct 20251.03%−0.04
30 Sep 20251.07%−0.25
15 Sep 20251.32%+0.15
29 Aug 20251.17%−0.04
15 Aug 20251.21%−0.06
31 Jul 20251.27%−0.10
15 Jul 20251.37%−0.09
30 Jun 20251.46%−0.01
13 Jun 20251.47%+0.17
30 May 20251.30%−0.03
15 May 20251.33%−0.12
30 Apr 20251.45%+0.08
15 Apr 20251.37%−0.07
31 Mar 20251.44%+0.20
14 Mar 20251.24%+0.12
28 Feb 20251.12%+0.06
14 Feb 20251.06%+0.11
31 Jan 20250.95%−0.03
15 Jan 20250.98%+0.12
31 Dec 20240.86%−0.42
13 Dec 20241.28%+0.15
29 Nov 20241.13%−0.13
15 Nov 20241.26%+0.26
31 Oct 20241.00%−0.18
15 Oct 20241.18%−0.05
30 Sep 20241.23%−0.08
13 Sep 20241.31%−0.15
30 Aug 20241.46%+0.02
15 Aug 20241.44%−0.59
31 Jul 20242.03%+0.02
15 Jul 20242.01%−0.22
28 Jun 20242.23%−0.36
14 Jun 20242.59%+1.09
31 May 20241.50%−0.46
15 May 20241.96%−0.39
30 Apr 20242.35%+0.30
15 Apr 20242.05%+0.04
28 Mar 20242.01%−0.36
15 Mar 20242.37%+0.28
29 Feb 20242.09%−0.14
15 Feb 20242.23%+0.01
31 Jan 20242.22%+0.23
12 Jan 20241.99%−0.08
29 Dec 20232.07%+0.18
15 Dec 20231.89%+0.10
30 Nov 20231.79%−0.03
15 Nov 20231.82%+0.18
31 Oct 20231.64%−0.01
13 Oct 20231.65%+0.01
29 Sep 20231.64%+0.01
15 Sep 20231.63%−0.11
31 Aug 20231.74%−0.06
15 Aug 20231.80%−0.02
31 Jul 20231.82%−0.10
14 Jul 20231.92%−0.16
30 Jun 20232.08%−0.15
15 Jun 20232.23%−0.11
31 May 20232.34%+0.08
15 May 20232.26%−0.12
28 Apr 20232.38%+0.05
14 Apr 20232.33%+0.36
31 Mar 20231.97%+0.45
15 Mar 20231.52%+0.30
28 Feb 20231.22%−0.12
15 Feb 20231.34%−0.98
31 Jan 20232.32%−0.31
13 Jan 20232.63%−0.07
30 Dec 20222.70%+0.38
15 Dec 20222.32%+0.06
30 Nov 20222.26%−0.23
15 Nov 20222.49%−0.28
31 Oct 20222.77%+0.07
14 Oct 20222.70%+0.13
30 Sep 20222.57%+0.35
15 Sep 20222.22%−0.12
31 Aug 20222.34%+0.01
15 Aug 20222.33%+0.16
29 Jul 20222.17%−0.08
15 Jul 20222.25%+0.01
30 Jun 20222.24%−0.10
15 Jun 20222.34%+0.07
31 May 20222.27%+0.19
13 May 20222.08%+0.17
29 Apr 20221.91%+0.05
14 Apr 20221.86%−0.11
31 Mar 20221.97%−0.13
15 Mar 20222.10%+0.10
28 Feb 20222.00%+0.05
15 Feb 20221.95%+0.38
31 Jan 20221.57%+0.34
14 Jan 20221.23%−0.06
31 Dec 20211.29%−0.07
15 Dec 20211.36%−0.07
30 Nov 20211.43%−0.17
15 Nov 20211.60%+0.05
29 Oct 20211.55%−0.27
15 Oct 20211.82%+0.10
30 Sep 20211.72%−0.11
15 Sep 20211.83%+0.02
31 Aug 20211.81%+0.13
13 Aug 20211.68%−0.22
30 Jul 20211.90%+0.28
15 Jul 20211.62%+0.05
30 Jun 20211.57%−0.18
15 Jun 20211.75%−0.37
28 May 20212.12%+0.03
14 May 20212.09%+0.18
30 Apr 20211.91%+0.10
15 Apr 20211.81%−0.06
31 Mar 20211.87%−0.55
15 Mar 20212.42%+0.05
26 Feb 20212.37%+0.38
12 Feb 20211.99%+0.09
29 Jan 20211.90%−0.40
15 Jan 20212.30%−0.24
31 Dec 20202.54%+0.12
15 Dec 20202.42%−0.03
30 Nov 20202.45%−0.27
13 Nov 20202.72%−0.56
30 Oct 20203.28%−0.06
15 Oct 20203.34%−0.13
30 Sep 20203.47%−0.11
15 Sep 20203.58%+0.29
31 Aug 20203.29%−0.24
14 Aug 20203.53%−0.41
31 Jul 20203.94%−0.20
15 Jul 20204.14%+0.11
30 Jun 20204.03%+0.23
15 Jun 20203.80%−0.03
29 May 20203.83%−0.19
15 May 20204.02%−0.19
30 Apr 20204.21%+0.04
15 Apr 20204.17%+0.12
31 Mar 20204.05%−0.03
13 Mar 20204.08%+0.50
28 Feb 20203.58%+0.68
14 Feb 20202.90%−0.19
31 Jan 20203.09%−0.30
15 Jan 20203.39%+0.09
31 Dec 20193.30%−0.39
13 Dec 20193.69%+0.08
29 Nov 20193.61%−0.27
15 Nov 20193.88%+0.42
31 Oct 20193.46%+0.01
15 Oct 20193.45%+0.70
30 Sep 20192.75%+0.28
13 Sep 20192.47%−0.08
30 Aug 20192.55%−0.02
15 Aug 20192.57%+0.43
31 Jul 20192.14%+0.23
15 Jul 20191.91%+0.32
28 Jun 20191.59%+0.06
14 Jun 20191.53%−0.09
31 May 20191.62%+0.13
15 May 20191.49%+0.17
30 Apr 20191.32%+0.15
15 Apr 20191.17%+0.03
29 Mar 20191.14%+0.04
15 Mar 20191.10%+0.31
28 Feb 20190.79%−0.67
15 Feb 20191.46%+0.20
31 Jan 20191.26%−0.36
15 Jan 20191.62%+0.16
31 Dec 20181.46%−0.49
14 Dec 20181.95%−0.13
30 Nov 20182.08%−0.14
15 Nov 20182.22%−0.13
31 Oct 20182.35%−0.04
15 Oct 20182.39%−0.18
28 Sep 20182.57%−1.31
14 Sep 20183.88%+1.43
31 Aug 20182.45%−1.34
15 Aug 20183.79%+1.02
31 Jul 20182.77%−1.15
13 Jul 20183.92%−0.13
29 Jun 20184.05%+1.41
15 Jun 20182.64%−1.22
31 May 20183.86%+0.80
15 May 20183.06%−0.71
30 Apr 20183.77%−0.39
13 Apr 20184.16%+0.75
29 Mar 20183.41%−0.82
15 Mar 20184.23%+0.91
28 Feb 20183.32%−0.62
15 Feb 20183.94%+0.80
31 Jan 20183.14%+0.43
12 Jan 20182.71%−0.01
29 Dec 20172.72%–

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

Frequently asked questions

How shorted was Great Lakes Dredge & Dock CORP?
Great Lakes Dredge & Dock CORP left the US market in 2026. Its final reported figure was 2.35% of shares outstanding for settlement date 31 Mar 2026, per FINRA's consolidated short interest report; this page preserves its full history.
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 GLDD'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 GLDD's days to cover?
1.00 days for settlement date 31 Mar 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.