TLSA (TLSA) short interest & short volume · 2.8M shares short
TLSA official short interest (FINRA, twice monthly) and daily short volume (FINRA Reg SHO), with history, % of float and days to cover.
What changed
TLSA short interest rose 5.7% to 2.8M shares in the Oct 15, 2026 report (4.3 days to cover). Daily short volume averaged 32.6% of volume over the last 20 sessions, down from 46.6% the 20 sessions before, the 18th percentile of its own 20-day averages since Oct 6, 2025.
Short interest
Official, twice monthly · settled Oct 15, 2026
- Shares short
- 2.8M
- prior 2.6M
- % of float
- —
- no float on file
- Days to cover
- 4.3
- avg vol 653K
- Change vs prior report
- +5.7%
| Report date | Shares short | $ value short | Change | % float | Days to cover | Price |
|---|---|---|---|---|---|---|
| Oct 15, 2026 | 2.8M | $2.9M | +5.7% | — | 4.3 | $1.05 |
| Sep 30, 2026 | 2.6M | $2.9M | +52.3% | — | 3.2 | $1.11 |
| Sep 15, 2026 | 1.7M | $1.5M | +2.0% | — | 3.5 | $0.85 |
| Aug 31, 2026 | 1.7M | $1.7M | +0.0% | — | 1.7 | $0.99 |
| Aug 14, 2026 | 1.7M | $1.9M | -0.2% | — | 1.3 | $1.14 |
| Jul 31, 2026 | 1.7M | $1.8M | +36.7% | — | 6.9 | $1.03 |
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.
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 11)
- 28.0%
- 59K of 211K
- 20-day average
- 32.6%
- prior 46.6%
- Percentile vs own history
- 18th
- 233 periods since 2025
Loading prices…
Source: FINRA Reg SHO daily short sale volume · Latest Nov 11, 2026
Short squeeze score (model)
Price since settlement: -41.9%
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.
TLSA'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 · TLSA overview
| Date | Short | Total | Short % of volume |
|---|---|---|---|
| 2026-11-11 | 59,168 | 211,493 | 28.0% |
| 2026-11-10 | 19,826 | 239,063 | 8.3% |
| 2026-11-09 | 47,135 | 182,129 | 25.9% |
| 2026-11-06 | 73,059 | 172,901 | 42.3% |
| 2026-11-05 | 117,160 | 497,550 | 23.6% |
| 2026-11-04 | 86,604 | 241,405 | 35.9% |
| 2026-11-03 | 102,154 | 324,944 | 31.4% |
| 2026-11-02 | 396,761 | 1,666,861 | 23.8% |
| 2026-10-30 | 171,080 | 838,139 | 20.4% |
| 2026-10-29 | 46,100 | 144,481 | 31.9% |
TLSA short interest FAQ
What is TLSA's short interest?
TLSA had 2.8M shares sold short and not yet covered in FINRA's Oct 15, 2026 settlement report.
How many days to cover does TLSA have?
4.3 days: 2.8M shares short divided by an average daily volume of 653K for the Oct 15, 2026 period.
Is TLSA short interest rising or falling?
TLSA short interest rose (+5.7%) from 2.6M to 2.8M shares in the Oct 15, 2026 report.
Is TLSA a short squeeze candidate?
Lician's squeeze watch scores TLSA 12 out of 100 (low) from the Oct 15, 2026 report: days to cover 10.7/25, change in short interest vs prior report 1.7/15, 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 TLSA daily volume is sold short?
32.6% on average over the last 20 sessions to Nov 11, 2026 (FINRA Reg SHO daily short volume; the 18th percentile of its own 20-day averages). Short volume counts market makers' same-day short sales, so it is not short interest.
What was TLSA's latest FINRA short volume?
On Nov 11, 2026, cached FINRA short volume for TLSA was 59,168 shares, 28.0% of 211,493 total volume.
How many TLSA short-volume sessions are listed on this page?
This page lists 10 cached FINRA short-volume sessions for TLSA, from Oct 29, 2026 through Nov 11, 2026.
How did TLSA short volume percent change from the prior cached session?
Cached FINRA short volume for TLSA moved from 8.3% on Nov 10, 2026 to 28.0% on Nov 11, 2026, up 19.7 percentage points.
Not investment advice. Figures as filed or reported, not a live feed.