Skip to content
HowShorted

How shorted is Greenwich LifeSciences, Inc.? GLSI

10.86%
of shares outstanding reported short · settlement date 14 Aug 2026
vs previous report
+0.36
5 reports (~10 weeks)
−0.10
days to cover
13.27
Aggregate net short position time series for Greenwich LifeSciences, 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 Greenwich LifeSciences, Inc. days to cover

Fails to deliver

The SEC's fails-to-deliver figure for GLSI: 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
8,477
14 Sep 2026
Highest in window
164,926
16 Dec 2025
Days with a balance
175
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for Greenwich LifeSciences, 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 165K 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

History

Full reported short interest history
Settlement dateShort %Change
14 Aug 202610.86%+0.36
31 Jul 202610.50%−0.09
15 Jul 202610.59%+0.07
30 Jun 202610.52%−0.03
15 Jun 202610.55%−0.41
29 May 202610.96%−0.17
15 May 202611.13%−0.02
30 Apr 202611.15%+0.16
15 Apr 202610.99%+0.14
31 Mar 202610.85%+0.60
13 Mar 202610.25%+0.60
27 Feb 20269.65%+0.41
13 Feb 20269.24%−0.28
30 Jan 20269.52%−1.64
15 Jan 202611.16%−0.89
31 Dec 202512.05%+0.36
15 Dec 202511.69%+0.07
28 Nov 202511.62%+0.20
14 Nov 202511.42%+1.70
31 Oct 20259.72%−0.13
15 Oct 20259.85%−0.21
30 Sep 202510.06%+1.00
15 Sep 20259.06%+1.19
29 Aug 20257.87%+0.08
15 Aug 20257.79%+0.16
31 Jul 20257.63%+0.09
15 Jul 20257.54%−0.20
30 Jun 20257.74%+0.44
13 Jun 20257.30%+0.07
30 May 20257.23%−0.37
15 May 20257.60%+0.08
30 Apr 20257.52%+0.66
15 Apr 20256.86%+1.21
31 Mar 20255.65%+0.64
14 Mar 20255.01%+0.11
28 Feb 20254.90%−0.07
14 Feb 20254.97%+0.07
31 Jan 20254.90%+0.24
15 Jan 20254.66%+0.42
31 Dec 20244.24%+0.21
13 Dec 20244.03%+0.30
29 Nov 20243.73%+0.15
15 Nov 20243.58%−0.11
31 Oct 20243.69%−0.12
15 Oct 20243.81%+0.04
30 Sep 20243.77%−0.07
13 Sep 20243.84%+0.29
30 Aug 20243.55%+0.11
15 Aug 20243.44%+0.21
31 Jul 20243.23%+0.35
15 Jul 20242.88%+0.86
28 Jun 20242.02%+0.24
14 Jun 20241.78%+0.27
31 May 20241.51%+0.14
15 May 20241.37%−0.10
30 Apr 20241.47%+0.03
15 Apr 20241.44%+0.35
28 Mar 20241.09%+0.02
15 Mar 20241.07%+0.13
29 Feb 20240.94%−0.41
15 Feb 20241.35%+0.15
31 Jan 20241.20%−0.05
12 Jan 20241.25%+0.06
29 Dec 20231.19%+0.30
15 Dec 20230.89%−0.41
30 Nov 20231.30%0.00
15 Nov 20231.30%+0.03
31 Oct 20231.27%−0.16
13 Oct 20231.43%−0.09
29 Sep 20231.52%0.00
15 Sep 20231.52%+0.11
31 Aug 20231.41%−0.05
15 Aug 20231.46%+0.08
31 Jul 20231.38%−0.07
14 Jul 20231.45%−0.07
30 Jun 20231.52%−0.22
15 Jun 20231.74%−0.02
31 May 20231.76%−0.12
15 May 20231.88%−0.52
28 Apr 20232.40%−0.25
14 Apr 20232.65%+0.50
31 Mar 20232.15%+0.65
15 Mar 20231.50%+0.14
28 Feb 20231.36%−0.02
15 Feb 20231.38%−0.03
31 Jan 20231.41%−0.15
13 Jan 20231.56%−0.19
30 Dec 20221.75%+0.24
15 Dec 20221.51%−0.33
30 Nov 20221.84%0.00
15 Nov 20221.84%+0.39
31 Oct 20221.45%−0.41
14 Oct 20221.86%−0.22
30 Sep 20222.08%+0.08
15 Sep 20222.00%+0.19
31 Aug 20221.81%+0.29
15 Aug 20221.52%−0.78
29 Jul 20222.30%−0.93
15 Jul 20223.23%+1.21
30 Jun 20222.02%−0.81
15 Jun 20222.83%+0.15
31 May 20222.68%+0.30
13 May 20222.38%+0.08
29 Apr 20222.30%+0.19
14 Apr 20222.11%−0.36
31 Mar 20222.47%+0.95
15 Mar 20221.52%+0.10
28 Feb 20221.42%+0.02
15 Feb 20221.40%+0.28
31 Jan 20221.12%+0.45
14 Jan 20220.67%−0.15
31 Dec 20210.82%−0.02
15 Dec 20210.84%+0.03
30 Nov 20210.81%+0.16
15 Nov 20210.65%−0.19
29 Oct 20210.84%−0.06
15 Oct 20210.90%−0.88
30 Sep 20211.78%+0.75
15 Sep 20211.03%−0.13
31 Aug 20211.16%−0.25
13 Aug 20211.41%−0.19
30 Jul 20211.60%+0.05
15 Jul 20211.55%+0.04
30 Jun 20211.51%+0.58
15 Jun 20210.93%−0.13
28 May 20211.06%−0.05
14 May 20211.11%−1.36
15 Apr 20212.47%+0.98
31 Mar 20211.49%−0.41
15 Mar 20211.90%+1.86
30 Nov 20200.04%–

Newest first. Scroll inside the table for earlier dates, back to 30 Nov 2020.

Frequently asked questions

How shorted is Greenwich LifeSciences, Inc. right now?
10.86% of Greenwich LifeSciences, Inc.'s (GLSI) 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 GLSI'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 GLSI's days to cover?
13.27 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.