HSYDF stock
Harmonic Drive Systems Inc (HSYDF) short interest & short volume · 1.9% of float short
Harmonic Drive 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
HSYDF short interest rose 33.2% to 1.0M shares in the Oct 15, 2026 report (1.9% of float, 293.2 days to cover).
Short interest
Official, twice monthly · settled Oct 15, 2026
- Shares short
- 1.0M
- prior 782K
- % of float
- 1.9%
- float 54.6M
- Days to cover
- 293.2
- avg vol 4K
- Change vs prior report
- +33.2%
| Report date | Shares short | $ value short | Change | % float | Days to cover | Price |
|---|---|---|---|---|---|---|
| Oct 15, 2026 | 1.0M | $35.1M | +33.2% | 1.9% | 293.2 | $33.65 |
| Sep 30, 2026 | 782K | $32.4M | -33.1% | 1.4% | 125.6 | $41.42 |
| Sep 15, 2026 | 1.2M | $44.9M | +49.3% | 2.1% | 88.4 | $38.38 |
| Aug 31, 2026 | 783K | $28.7M | -47.5% | 1.4% | 197.3 | $36.67 |
| Aug 14, 2026 | 1.5M | $61.1M | +30.7% | 2.7% | 617.6 | $41.00 |
| Jul 31, 2026 | 1.1M | $45.9M | -27.8% | 2.1% | 169.6 | $40.24 |
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
No FINRA daily short volume on file for HSYDF yet.
Short squeeze score (model)
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.
HSYDF'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 · HSYDF overview
HSYDF short interest FAQ
What is HSYDF's short interest?
Harmonic Drive Systems Inc (HSYDF) had 1.0M shares sold short and not yet covered in FINRA's Oct 15, 2026 settlement report, 1.9% of its 54.6M-share float.
How many days to cover does HSYDF have?
293.2 days: 1.0M shares short divided by an average daily volume of 4K for the Oct 15, 2026 period.
Is HSYDF short interest rising or falling?
HSYDF short interest rose (+33.2%) from 782K to 1.0M shares in the Oct 15, 2026 report.
Is HSYDF a short squeeze candidate?
Lician's squeeze watch scores HSYDF 37 out of 100 (low) from the Oct 15, 2026 report: short interest % of float 2.5/40, days to cover 25/25, change in short interest vs prior report 9.9/15. It is a transparent model of how crowded the short side is, not a forecast that a squeeze will happen.
What is HSYDF's market cap?
Harmonic Drive Systems Inc (HSYDF) market cap is $4.83B on the latest cached fundamentals snapshot.
Where is HSYDF short volume listed?
Cached FINRA short volume for Harmonic Drive Systems Inc (HSYDF) is listed at https://lician.com/short-interest/hsydf.
Not investment advice. Figures as filed or reported, not a live feed.