Annexon Inc (ANNX) short interest & short volume · 38.4% of float short
Annexon Inc official short interest (FINRA, twice monthly) and daily short volume (FINRA Reg SHO), with history, % of float and days to cover.
What changed
ANNX short interest fell 1.2% to 31.6M shares in the Oct 15, 2026 report (38.4% of float, 10.3 days to cover). Daily short volume averaged 45.2% of volume over the last 20 sessions, down from 50.7% the 20 sessions before, the 46th percentile of its own 20-day averages since Sep 22, 2025.
Short interest
Official, twice monthly · settled Oct 15, 2026
- Shares short
- 31.6M
- prior 32.0M
- % of float
- 38.4%
- float 82.4M
- Days to cover
- 10.3
- avg vol 3.1M
- Change vs prior report
- -1.2%
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)
- 47.2%
- 347K of 736K
- 20-day average
- 45.2%
- prior 50.7%
- Percentile vs own history
- 46th
- 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: +16.4%
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.
ANNX'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 · ANNX overview
| Date | Short | Total | Short % of volume |
|---|---|---|---|
| 2026-11-02 | 347,125 | 736,005 | 47.2% |
| 2026-10-30 | 325,127 | 1,015,962 | 32.0% |
| 2026-10-29 | 343,862 | 967,735 | 35.5% |
| 2026-10-28 | 382,484 | 1,087,563 | 35.2% |
| 2026-10-27 | 257,351 | 1,030,520 | 25.0% |
| 2026-10-26 | 449,657 | 915,067 | 49.1% |
| 2026-10-23 | 498,771 | 878,637 | 56.8% |
| 2026-10-22 | 403,008 | 1,637,344 | 24.6% |
| 2026-10-21 | 1,581,925 | 2,313,380 | 68.4% |
| 2026-10-20 | 1,238,976 | 2,523,819 | 49.1% |
Healthcare peers with similar quant ratings
ANNX is rated 1.24 of 5 among 532 rated Healthcare stocks (Lician quant rating, Nov 4, 2026). How the rating works
- NUVB short interest1.27 · Strong Sell · stock
- SPRY short interest1.27 · Strong Sell · stock
- CADL short interest1.26 · Strong Sell · stock
- CGON short interest1.25 · Strong Sell · stock
- VKTX short interest1.24 · Strong Sell · stock
- RCUS short interest1.23 · Strong Sell · stock
- IMNM short interest1.22 · Strong Sell · stock
- QURE short interest1.21 · Strong Sell · stock
ANNX short interest FAQ
What is ANNX's short interest?
Annexon Inc (ANNX) had 31.6M shares sold short and not yet covered in FINRA's Oct 15, 2026 settlement report, 38.4% of its 82.4M-share float.
How many days to cover does ANNX have?
10.3 days: 31.6M shares short divided by an average daily volume of 3.1M for the Oct 15, 2026 period.
Is ANNX short interest rising or falling?
ANNX short interest fell (-1.2%) from 32.0M to 31.6M shares in the Oct 15, 2026 report.
Is ANNX a short squeeze candidate?
Lician's squeeze watch scores ANNX 78 out of 100 (high) from the Oct 15, 2026 report: short interest % of float 40/40, days to cover 25/25, change in short interest vs prior report 0/15, price change since settlement date 13.1/20. It is a transparent model of how crowded the short side is, not a forecast that a squeeze will happen.
What share of ANNX daily volume is sold short?
45.2% on average over the last 20 sessions to Nov 2, 2026 (FINRA Reg SHO daily short volume; the 46th percentile of its own 20-day averages). Short volume counts market makers' same-day short sales, so it is not short interest.
What was ANNX's latest FINRA short volume?
On Nov 2, 2026, cached FINRA short volume for Annexon Inc (ANNX) was 347,125 shares, 47.2% of 736,005 total volume.
How many ANNX short-volume sessions are listed on this page?
This page lists 10 cached FINRA short-volume sessions for Annexon Inc (ANNX), from Oct 20, 2026 through Nov 2, 2026.
How did ANNX short volume percent change from the prior cached session?
Cached FINRA short volume for Annexon Inc (ANNX) moved from 32.0% on Oct 30, 2026 to 47.2% on Nov 2, 2026, up 15.2 percentage points.
Not investment advice. Figures as filed or reported, not a live feed.