Phio Pharmaceuticals Corp (PHIO) short interest & short volume · 2.9% of float short
Phio Pharmaceuticals Corp official short interest (FINRA, twice monthly) and daily short volume (FINRA Reg SHO), with history, % of float and days to cover.
What changed
PHIO short interest rose 52.5% to 136K shares in the Oct 15, 2026 report (2.9% of float, 1.5 days to cover). Daily short volume averaged 51.2% of volume over the last 20 sessions, up from 32.0% 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
- 136K
- prior 89K
- % of float
- 2.9%
- float 4.8M
- Days to cover
- 1.5
- avg vol 92K
- Change vs prior report
- +52.5%
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)
- 10.3%
- 2K of 18K
- 20-day average
- 51.2%
- prior 32.0%
- 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: -2.5%
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.
PHIO'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 · PHIO overview
| Date | Short | Total | Short % of volume |
|---|---|---|---|
| 2026-11-02 | 1,858 | 18,052 | 10.3% |
| 2026-10-30 | 26,428 | 32,669 | 80.9% |
| 2026-10-29 | 14,880 | 20,414 | 72.9% |
| 2026-10-28 | 1,482 | 7,206 | 20.6% |
| 2026-10-27 | 32,370 | 42,635 | 75.9% |
| 2026-10-26 | 12,511 | 22,611 | 55.3% |
| 2026-10-23 | 10,033 | 25,655 | 39.1% |
| 2026-10-22 | 15,186 | 34,596 | 43.9% |
| 2026-10-21 | 20,630 | 68,903 | 29.9% |
| 2026-10-20 | 27,595 | 38,799 | 71.1% |
Healthcare peers with similar quant ratings
PHIO among 532 rated Healthcare stocks (Lician quant rating, Nov 4, 2026). How the rating works
- QTTB short interest5.00 · Strong Buy · stock
- AVAH short interest4.99 · Strong Buy · stock
- CDNA short interest4.98 · Strong Buy · stock
- HALO short interest4.97 · Strong Buy · stock
- OSCR short interest4.97 · Strong Buy · stock
- BTSG short interest4.96 · Strong Buy
- REGN short interest4.95 · Strong Buy · stock
- CON short interest4.94 · Strong Buy · stock
PHIO short interest FAQ
What is PHIO's short interest?
Phio Pharmaceuticals Corp (PHIO) had 136K shares sold short and not yet covered in FINRA's Oct 15, 2026 settlement report, 2.9% of its 4.8M-share float.
How many days to cover does PHIO have?
1.5 days: 136K shares short divided by an average daily volume of 92K for the Oct 15, 2026 period.
Is PHIO short interest rising or falling?
PHIO short interest rose (+52.5%) from 89K to 136K shares in the Oct 15, 2026 report.
Is PHIO a short squeeze candidate?
Lician's squeeze watch scores PHIO 23 out of 100 (low) from the Oct 15, 2026 report: short interest % of float 3.8/40, days to cover 3.7/25, change in short interest vs prior report 15/15, 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 PHIO daily volume is sold short?
51.2% 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 PHIO's latest FINRA short volume?
On Nov 2, 2026, cached FINRA short volume for Phio Pharmaceuticals Corp (PHIO) was 1,858 shares, 10.3% of 18,052 total volume.
How many PHIO short-volume sessions are listed on this page?
This page lists 10 cached FINRA short-volume sessions for Phio Pharmaceuticals Corp (PHIO), from Oct 20, 2026 through Nov 2, 2026.
How did PHIO short volume percent change from the prior cached session?
Cached FINRA short volume for Phio Pharmaceuticals Corp (PHIO) moved from 80.9% on Oct 30, 2026 to 10.3% on Nov 2, 2026, down 70.6 percentage points.
Not investment advice. Figures as filed or reported, not a live feed.