Sellas Life Sciences Group Inc (SLS) short interest & short volume · 29.0% of float short
Sellas Life Sciences Group Inc official short interest (FINRA, twice monthly) and daily short volume (FINRA Reg SHO), with history, % of float and days to cover.
What changed
SLS short interest fell 2.5% to 53.8M shares in the Oct 15, 2026 report (29.0% of float, 11.9 days to cover). Daily short volume averaged 59.4% of volume over the last 20 sessions, down from 60.1% the 20 sessions before, the 64th percentile of its own 20-day averages since Sep 23, 2025.
Short interest
Official, twice monthly · settled Oct 15, 2026
- Shares short
- 53.8M
- prior 55.1M
- % of float
- 29.0%
- float 185.2M
- Days to cover
- 11.9
- avg vol 4.5M
- Change vs prior report
- -2.5%
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)
- 49.1%
- 3.3M of 6.7M
- 20-day average
- 59.4%
- prior 60.1%
- Percentile vs own history
- 64th
- 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: -21.8%
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.
SLS'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 · SLS overview
| Date | Short | Total | Short % of volume |
|---|---|---|---|
| 2026-11-02 | 3,302,550 | 6,727,445 | 49.1% |
| 2026-10-30 | 1,802,751 | 3,026,238 | 59.6% |
| 2026-10-29 | 2,418,759 | 4,069,450 | 59.4% |
| 2026-10-28 | 8,806,434 | 11,915,925 | 73.9% |
| 2026-10-27 | 1,405,424 | 3,043,205 | 46.2% |
| 2026-10-26 | 886,125 | 1,496,201 | 59.2% |
| 2026-10-23 | 1,025,093 | 1,686,756 | 60.8% |
| 2026-10-22 | 2,150,302 | 3,512,591 | 61.2% |
| 2026-10-21 | 1,806,815 | 3,136,099 | 57.6% |
| 2026-10-20 | 2,571,303 | 5,037,803 | 51.0% |
Healthcare peers with similar quant ratings
SLS is rated 3.08 of 5 among 532 rated Healthcare stocks (Lician quant rating, Nov 4, 2026). How the rating works
- JAZZ short interest3.11 · Hold · stock
- BEAM short interest3.10 · Hold · stock
- BVS short interest3.09 · Hold · stock
- ORKA short interest3.09 · Hold · stock
- SYK short interest3.07 · Hold · stock
- FULC short interest3.06 · Hold · stock
- PAHC short interest3.06 · Hold · stock
- ELMD short interest3.05 · Hold · stock
SLS short interest FAQ
What is SLS's short interest?
Sellas Life Sciences Group Inc (SLS) had 53.8M shares sold short and not yet covered in FINRA's Oct 15, 2026 settlement report, 29.0% of its 185.2M-share float.
How many days to cover does SLS have?
11.9 days: 53.8M shares short divided by an average daily volume of 4.5M for the Oct 15, 2026 period.
Is SLS short interest rising or falling?
SLS short interest fell (-2.5%) from 55.1M to 53.8M shares in the Oct 15, 2026 report.
Is SLS a short squeeze candidate?
Lician's squeeze watch scores SLS 64 out of 100 (elevated) from the Oct 15, 2026 report: short interest % of float 38.7/40, days to cover 25/25, change in short interest vs prior report 0/15, price change since settlement date 0/20. It is a transparent model of how crowded the short side is, not a forecast that a squeeze will happen.
What share of SLS daily volume is sold short?
59.4% on average over the last 20 sessions to Nov 2, 2026 (FINRA Reg SHO daily short volume; the 64th percentile of its own 20-day averages). Short volume counts market makers' same-day short sales, so it is not short interest.
What was SLS's latest FINRA short volume?
On Nov 2, 2026, cached FINRA short volume for Sellas Life Sciences Group Inc (SLS) was 3,302,550 shares, 49.1% of 6,727,445 total volume.
How many SLS short-volume sessions are listed on this page?
This page lists 10 cached FINRA short-volume sessions for Sellas Life Sciences Group Inc (SLS), from Oct 20, 2026 through Nov 2, 2026.
How did SLS short volume percent change from the prior cached session?
Cached FINRA short volume for Sellas Life Sciences Group Inc (SLS) moved from 59.6% on Oct 30, 2026 to 49.1% on Nov 2, 2026, down 10.5 percentage points.
Not investment advice. Figures as filed or reported, not a live feed.