OSI Systems Inc (OSIS) short interest & short volume · 12.7% of float short
OSI Systems Inc official short interest (FINRA, twice monthly) and daily short volume (FINRA Reg SHO), with history, % of float and days to cover.
What changed
OSIS short interest fell 3.4% to 2.0M shares in the Oct 15, 2026 report (12.7% of float, 12.3 days to cover). Daily short volume averaged 49.0% of volume over the last 20 sessions, down from 60.1% the 20 sessions before, the 1st percentile of its own 20-day averages since Sep 23, 2025.
Short interest
Official, twice monthly · settled Oct 15, 2026
- Shares short
- 2.0M
- prior 2.1M
- % of float
- 12.7%
- float 15.8M
- Days to cover
- 12.3
- avg vol 164K
- Change vs prior report
- -3.4%
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)
- 63.5%
- 50K of 79K
- 20-day average
- 49.0%
- prior 60.1%
- Percentile vs own history
- 1st
- 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: +2.4%
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.
OSIS'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 · OSIS overview
| Date | Short | Total | Short % of volume |
|---|---|---|---|
| 2026-11-02 | 50,071 | 78,870 | 63.5% |
| 2026-10-30 | 79,682 | 137,163 | 58.1% |
| 2026-10-29 | 70,377 | 121,761 | 57.8% |
| 2026-10-28 | 19,184 | 67,542 | 28.4% |
| 2026-10-27 | 33,601 | 76,050 | 44.2% |
| 2026-10-26 | 33,436 | 124,682 | 26.8% |
| 2026-10-23 | 33,891 | 64,595 | 52.5% |
| 2026-10-22 | 24,518 | 40,256 | 60.9% |
| 2026-10-21 | 75,275 | 96,741 | 77.8% |
| 2026-10-20 | 36,259 | 62,922 | 57.6% |
Technology peers with similar quant ratings
OSIS is rated 3.41 of 5 among 462 rated Technology stocks (Lician quant rating, Nov 4, 2026). How the rating works
- ATHM short interest3.44 · Hold
- IBM short interest3.43 · Hold · stock
- DBX short interest3.42 · Hold · stock
- WB short interest3.42 · Hold
- CRSR short interest3.40 · Hold · stock
- BR short interest3.39 · Hold · stock
- IBTA short interest3.38 · Hold · stock
- ARM short interest3.37 · Hold · stock
OSIS short interest FAQ
What is OSIS's short interest?
OSI Systems Inc (OSIS) had 2.0M shares sold short and not yet covered in FINRA's Oct 15, 2026 settlement report, 12.7% of its 15.8M-share float.
How many days to cover does OSIS have?
12.3 days: 2.0M shares short divided by an average daily volume of 164K for the Oct 15, 2026 period.
Is OSIS short interest rising or falling?
OSIS short interest fell (-3.4%) from 2.1M to 2.0M shares in the Oct 15, 2026 report.
Is OSIS a short squeeze candidate?
Lician's squeeze watch scores OSIS 44 out of 100 (elevated) from the Oct 15, 2026 report: short interest % of float 17/40, days to cover 25/25, change in short interest vs prior report 0/15, price change since settlement date 1.9/20. It is a transparent model of how crowded the short side is, not a forecast that a squeeze will happen.
What share of OSIS daily volume is sold short?
49.0% on average over the last 20 sessions to Nov 2, 2026 (FINRA Reg SHO daily short volume; the 1st percentile of its own 20-day averages). Short volume counts market makers' same-day short sales, so it is not short interest.
What was OSIS's latest FINRA short volume?
On Nov 2, 2026, cached FINRA short volume for OSI Systems Inc (OSIS) was 50,071 shares, 63.5% of 78,870 total volume.
How many OSIS short-volume sessions are listed on this page?
This page lists 10 cached FINRA short-volume sessions for OSI Systems Inc (OSIS), from Oct 20, 2026 through Nov 2, 2026.
How did OSIS short volume percent change from the prior cached session?
Cached FINRA short volume for OSI Systems Inc (OSIS) moved from 58.1% on Oct 30, 2026 to 63.5% on Nov 2, 2026, up 5.4 percentage points.
Not investment advice. Figures as filed or reported, not a live feed.