PTIX (PTIX) short interest & short volume · 13K shares short
PTIX official short interest (FINRA, twice monthly) and daily short volume (FINRA Reg SHO), with history, % of float and days to cover.
What changed
PTIX short interest was little changed at 13K shares in the Oct 15, 2026 report (5.9 days to cover). Daily short volume averaged 35.1% of volume over the last 20 sessions, down from 47.6% the 20 sessions before, the 32nd percentile of its own 20-day averages since Sep 16, 2025.
Short interest
Official, twice monthly · settled Oct 15, 2026
- Shares short
- 13K
- prior 13K
- % of float
- —
- no float on file
- Days to cover
- 5.9
- avg vol 2K
- Change vs prior report
- -0.2%
| Report date | Shares short | $ value short | Change | % float | Days to cover | Price |
|---|---|---|---|---|---|---|
| Oct 15, 2026 | 13K | $10K | -0.2% | — | 5.9 | $0.75 |
| Sep 30, 2026 | 13K | $11K | +0.4% | — | 1.2 | $0.81 |
| Sep 15, 2026 | 13K | $10K | -0.8% | — | 1.0 | $0.79 |
| Aug 31, 2026 | 13K | $16K | -0.2% | — | 1.0 | $1.20 |
| Aug 14, 2026 | 13K | $5K | -0.8% | — | 1.1 | $0.36 |
| Jul 31, 2026 | 13K | $2K | +0.1% | — | 1.0 | $0.18 |
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 (Jan 2)
- 67.1%
- 485K of 723K
- 20-day average
- 35.1%
- prior 47.6%
- Percentile vs own history
- 32nd
- 50 periods since 2025
Loading prices…
Source: FINRA Reg SHO daily short sale volume · Latest Jan 2, 2026
Short squeeze score (model)
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.
PTIX'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 · PTIX overview
| Date | Short | Total | Short % of volume |
|---|---|---|---|
| 2026-01-02 | 485,416 | 722,983 | 67.1% |
| 2025-12-31 | 15,235 | 52,030 | 29.3% |
| 2025-12-30 | 11,258 | 33,297 | 33.8% |
| 2025-12-29 | 11,164 | 31,655 | 35.3% |
| 2025-12-26 | 24,160 | 46,152 | 52.4% |
| 2025-12-24 | 9,982 | 24,295 | 41.1% |
| 2025-12-23 | 14 | 3,304 | 0.4% |
| 2025-12-22 | 8,764 | 34,631 | 25.3% |
| 2025-12-19 | 4,373 | 15,980 | 27.4% |
| 2025-12-18 | 10,032 | 45,053 | 22.3% |
PTIX short interest FAQ
What is PTIX's short interest?
PTIX had 13K shares sold short and not yet covered in FINRA's Oct 15, 2026 settlement report.
How many days to cover does PTIX have?
5.9 days: 13K shares short divided by an average daily volume of 2K for the Oct 15, 2026 period.
Is PTIX short interest rising or falling?
PTIX short interest was little changed (-0.2%) from 13K to 13K shares in the Oct 15, 2026 report.
Is PTIX a short squeeze candidate?
Lician's squeeze watch scores PTIX 15 out of 100 (low) from the Oct 15, 2026 report: days to cover 14.8/25, change in short interest vs prior report 0/15. It is a transparent model of how crowded the short side is, not a forecast that a squeeze will happen.
What share of PTIX daily volume is sold short?
35.1% on average over the last 20 sessions to Jan 2, 2026 (FINRA Reg SHO daily short volume; the 32nd percentile of its own 20-day averages). Short volume counts market makers' same-day short sales, so it is not short interest.
What was PTIX's latest FINRA short volume?
On Jan 2, 2026, cached FINRA short volume for PTIX was 485,416 shares, 67.1% of 722,983 total volume.
How many PTIX short-volume sessions are listed on this page?
This page lists 10 cached FINRA short-volume sessions for PTIX, from Dec 18, 2025 through Jan 2, 2026.
How did PTIX short volume percent change from the prior cached session?
Cached FINRA short volume for PTIX moved from 29.3% on Dec 31, 2025 to 67.1% on Jan 2, 2026, up 37.8 percentage points.
Not investment advice. Figures as filed or reported, not a live feed.