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VIVS stock

VivoSim Labs, Inc. (VIVS) short interest & short volume · 598K shares short

VivoSim Labs, Inc. official short interest (FINRA, twice monthly) and daily short volume (FINRA Reg SHO), with history, % of float and days to cover.

What changed

VIVS short interest fell 15.5% to 598K shares in the Oct 15, 2026 report (1.0 days to cover). Daily short volume averaged 45.7% of volume over the last 20 sessions, the 92nd percentile of its own 20-day averages since Sep 23, 2025.

Short interest

Official, twice monthly · settled Oct 15, 2026

Shares short
598K
prior 708K
% of float
—
no float on file
Days to cover
1.0
avg vol 813K
Change vs prior report
-15.5%

6 reports

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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 2)
51.4%
167K of 325K
20-day average
45.7%
prior 45.9%
Percentile vs own history
92nd
233 periods since 2025

Loading prices…

Short volumeRest of the day's volume

Source: FINRA Reg SHO daily short sale volume · Latest Nov 2, 2026

Short squeeze score (model)

Price since settlement: -15.5%

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.

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Market-wide: most shorted stocks, biggest changes and unusual short volume · VIVS overview

Last 10 sessions · daily short volume · FINRA Reg SHO
DateShortTotalShort % of volume
2026-11-02167,321325,46951.4%
2026-10-30281,431475,59359.2%
2026-10-29748,5991,249,30859.9%
2026-10-2832,690163,29320.0%
2026-10-2752,998316,26816.8%
2026-10-26184,246320,66957.5%
2026-10-23121,973352,22734.6%
2026-10-22826,1311,545,69753.5%
2026-10-21341,661532,83864.1%
2026-10-20122,222381,94332.0%

Healthcare peers with similar quant ratings

VIVS among 532 rated Healthcare stocks (Lician quant rating, Nov 4, 2026). How the rating works

VIVS short interest FAQ

What is VIVS's short interest?

VivoSim Labs, Inc. (VIVS) had 598K shares sold short and not yet covered in FINRA's Oct 15, 2026 settlement report.

How many days to cover does VIVS have?

1.0 days: 598K shares short divided by an average daily volume of 813K for the Oct 15, 2026 period.

Is VIVS short interest rising or falling?

VIVS short interest fell (-15.5%) from 708K to 598K shares in the Oct 15, 2026 report.

Is VIVS a short squeeze candidate?

Lician's squeeze watch scores VIVS 3 out of 100 (low) from the Oct 15, 2026 report: days to cover 2.5/25, change in short interest vs prior report 0/15, 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 VIVS daily volume is sold short?

45.7% on average over the last 20 sessions to Nov 2, 2026 (FINRA Reg SHO daily short volume; the 92nd percentile of its own 20-day averages). Short volume counts market makers' same-day short sales, so it is not short interest.

What was VIVS's latest FINRA short volume?

On Nov 2, 2026, cached FINRA short volume for VivoSim Labs, Inc. (VIVS) was 167,321 shares, 51.4% of 325,469 total volume.

How many VIVS short-volume sessions are listed on this page?

This page lists 10 cached FINRA short-volume sessions for VivoSim Labs, Inc. (VIVS), from Oct 20, 2026 through Nov 2, 2026.

How did VIVS short volume percent change from the prior cached session?

Cached FINRA short volume for VivoSim Labs, Inc. (VIVS) moved from 59.2% on Oct 30, 2026 to 51.4% on Nov 2, 2026, down 7.8 percentage points.

Not investment advice. Figures as filed or reported, not a live feed.