Five9 Inc (FIVN) short interest & short volume · 16.0% of float short
Five9 Inc official short interest (FINRA, twice monthly) and daily short volume (FINRA Reg SHO), with history, % of float and days to cover.
What changed
FIVN short interest rose 6.2% to 10.8M shares in the Oct 15, 2026 report (16.0% of float, 5.8 days to cover). Daily short volume averaged 59.5% of volume over the last 20 sessions, up from 55.5% the 20 sessions before, the 93rd percentile of its own 20-day averages since Sep 23, 2025.
Short interest
Official, twice monthly · settled Oct 15, 2026
- Shares short
- 10.8M
- prior 10.2M
- % of float
- 16.0%
- float 67.6M
- Days to cover
- 5.8
- avg vol 1.9M
- Change vs prior report
- +6.2%
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)
- 49.9%
- 305K of 611K
- 20-day average
- 59.5%
- prior 55.5%
- Percentile vs own history
- 93rd
- 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: +1.9%
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.
FIVN'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 · FIVN overview
| Date | Short | Total | Short % of volume |
|---|---|---|---|
| 2026-11-02 | 304,900 | 611,120 | 49.9% |
| 2026-10-30 | 351,386 | 733,331 | 47.9% |
| 2026-10-29 | 383,152 | 522,097 | 73.4% |
| 2026-10-28 | 300,478 | 450,569 | 66.7% |
| 2026-10-27 | 220,868 | 332,065 | 66.5% |
| 2026-10-26 | 296,058 | 571,341 | 51.8% |
| 2026-10-23 | 706,293 | 1,054,153 | 67.0% |
| 2026-10-22 | 213,172 | 395,951 | 53.8% |
| 2026-10-21 | 212,004 | 332,450 | 63.8% |
| 2026-10-20 | 611,636 | 954,742 | 64.1% |
Technology peers with similar quant ratings
FIVN is rated 4.30 of 5 among 462 rated Technology stocks (Lician quant rating, Nov 4, 2026). How the rating works
- SAIC short interest4.33 · Buy · stock
- EXLS short interest4.32 · Buy · stock
- ZETA short interest4.31 · Buy · stock
- CVLT short interest4.30 · Buy · stock
- AAPL short interest4.28 · Buy · stock
- NET short interest4.28 · Buy · stock
- GLBE short interest4.27 · Buy
- IT short interest4.26 · Buy · stock
FIVN on Lician stock screens
FIVN is rated Buy (4.30 of 5) and passes 3 of 9 preset screens on the Nov 4, 2026 quant run. Build your own screen
FIVN short interest FAQ
What is FIVN's short interest?
Five9 Inc (FIVN) had 10.8M shares sold short and not yet covered in FINRA's Oct 15, 2026 settlement report, 16.0% of its 67.6M-share float.
How many days to cover does FIVN have?
5.8 days: 10.8M shares short divided by an average daily volume of 1.9M for the Oct 15, 2026 period.
Is FIVN short interest rising or falling?
FIVN short interest rose (+6.2%) from 10.2M to 10.8M shares in the Oct 15, 2026 report.
Is FIVN a short squeeze candidate?
Lician's squeeze watch scores FIVN 39 out of 100 (low) from the Oct 15, 2026 report: short interest % of float 21.4/40, days to cover 14.5/25, change in short interest vs prior report 1.9/15, price change since settlement date 1.5/20. It is a transparent model of how crowded the short side is, not a forecast that a squeeze will happen.
What share of FIVN daily volume is sold short?
59.5% on average over the last 20 sessions to Nov 2, 2026 (FINRA Reg SHO daily short volume; the 93rd percentile of its own 20-day averages). Short volume counts market makers' same-day short sales, so it is not short interest.
What was FIVN's latest FINRA short volume?
On Nov 2, 2026, cached FINRA short volume for Five9 Inc (FIVN) was 304,900 shares, 49.9% of 611,120 total volume.
How many FIVN short-volume sessions are listed on this page?
This page lists 10 cached FINRA short-volume sessions for Five9 Inc (FIVN), from Oct 20, 2026 through Nov 2, 2026.
How did FIVN short volume percent change from the prior cached session?
Cached FINRA short volume for Five9 Inc (FIVN) moved from 47.9% on Oct 30, 2026 to 49.9% on Nov 2, 2026, up 2.0 percentage points.
Not investment advice. Figures as filed or reported, not a live feed.