Greenwich Lifesciences Inc (GLSI) short interest & short volume · 25.4% of float short
Greenwich Lifesciences Inc official short interest (FINRA, twice monthly) and daily short volume (FINRA Reg SHO), with history, % of float and days to cover.
What changed
GLSI short interest fell 1.8% to 1.6M shares in the Oct 15, 2026 report (25.4% of float, 10.7 days to cover). Daily short volume averaged 70.3% of volume over the last 20 sessions, up from 62.6% the 20 sessions before, the 96th percentile of its own 20-day averages since Sep 23, 2025.
Short interest
Official, twice monthly · settled Oct 15, 2026
- Shares short
- 1.6M
- prior 1.6M
- % of float
- 25.4%
- float 6.1M
- Days to cover
- 10.7
- avg vol 145K
- Change vs prior report
- -1.8%
Days to cover is short interest divided by FINRA's average daily volume for the period: how many average days of trading it would take shorts to buy back.
% of float uses the current float for every report (no float was stored with older reports).
Source: FINRA equity short interest (twice monthly) · Settlement Oct 15, 2026
Daily short volume
Share of each day's volume sold short · FINRA Reg SHO
- Latest (Nov 2)
- 70.8%
- 33K of 47K
- 20-day average
- 70.3%
- prior 62.6%
- Percentile vs own history
- 96th
- 233 periods since 2025
Loading prices…
Source: FINRA Reg SHO daily short sale volume · Latest Nov 2, 2026
Short squeeze score (model)
Price since settlement: +3.9%
Model, not a forecast: 40 pts short interest % of float (full at 30%), 25 pts days to cover (full at 10), 15 pts rise in short interest since the prior report (full at +50%), 20 pts price gain since the settlement date (full at +25%). Missing inputs score 0.
GLSI's squeeze score and its inputs with Lician Pro.Start 3-day trial — $149/yr
Market-wide: most shorted stocks, biggest changes and unusual short volume · GLSI overview
| Date | Short | Total | Short % of volume |
|---|---|---|---|
| 2026-11-02 | 33,489 | 47,272 | 70.8% |
| 2026-10-30 | 36,665 | 62,759 | 58.4% |
| 2026-10-29 | 20,767 | 32,965 | 63.0% |
| 2026-10-28 | 17,775 | 33,654 | 52.8% |
| 2026-10-27 | 40,568 | 68,966 | 58.8% |
| 2026-10-26 | 35,281 | 39,087 | 90.3% |
| 2026-10-23 | 21,836 | 29,362 | 74.4% |
| 2026-10-22 | 23,758 | 30,928 | 76.8% |
| 2026-10-21 | 12,581 | 18,257 | 68.9% |
| 2026-10-20 | 20,527 | 40,654 | 50.5% |
Healthcare peers with similar quant ratings
GLSI is rated 1.64 of 5 among 532 rated Healthcare stocks (Lician quant rating, Nov 4, 2026). How the rating works
- MNPR short interest1.67 · Sell · stock
- WVE short interest1.67 · Sell · stock
- NGNE short interest1.66 · Sell · stock
- CABA short interest1.65 · Sell · stock
- KRRO short interest1.64 · Sell · stock
- OCUL short interest1.63 · Sell · stock
- KYTX short interest1.62 · Sell · stock
- CRSP short interest1.61 · Sell · stock
GLSI short interest FAQ
What is GLSI's short interest?
Greenwich Lifesciences Inc (GLSI) had 1.6M shares sold short and not yet covered in FINRA's Oct 15, 2026 settlement report, 25.4% of its 6.1M-share float.
How many days to cover does GLSI have?
10.7 days: 1.6M shares short divided by an average daily volume of 145K for the Oct 15, 2026 period.
Is GLSI short interest rising or falling?
GLSI short interest fell (-1.8%) from 1.6M to 1.6M shares in the Oct 15, 2026 report.
Is GLSI a short squeeze candidate?
Lician's squeeze watch scores GLSI 62 out of 100 (elevated) from the Oct 15, 2026 report: short interest % of float 33.9/40, days to cover 25/25, change in short interest vs prior report 0/15, price change since settlement date 3.1/20. It is a transparent model of how crowded the short side is, not a forecast that a squeeze will happen.
What share of GLSI daily volume is sold short?
70.3% on average over the last 20 sessions to Nov 2, 2026 (FINRA Reg SHO daily short volume; the 96th percentile of its own 20-day averages). Short volume counts market makers' same-day short sales, so it is not short interest.
What was GLSI's latest FINRA short volume?
On Nov 2, 2026, cached FINRA short volume for Greenwich Lifesciences Inc (GLSI) was 33,489 shares, 70.8% of 47,272 total volume.
How many GLSI short-volume sessions are listed on this page?
This page lists 10 cached FINRA short-volume sessions for Greenwich Lifesciences Inc (GLSI), from Oct 20, 2026 through Nov 2, 2026.
How did GLSI short volume percent change from the prior cached session?
Cached FINRA short volume for Greenwich Lifesciences Inc (GLSI) moved from 58.4% on Oct 30, 2026 to 70.8% on Nov 2, 2026, up 12.4 percentage points.
Not investment advice. Figures as filed or reported, not a live feed.