SDSI stock
SDSI (SDSI) short interest & short volume · 42K shares short
SDSI official short interest (FINRA, twice monthly) and daily short volume (FINRA Reg SHO), with history, % of float and days to cover.
What changed
SDSI short interest rose 76.2% to 42K shares in the Oct 15, 2026 report (1.0 days to cover). Daily short volume averaged 48.9% of volume over the last 20 sessions, down from 60.0% the 20 sessions before, the 41st percentile of its own 20-day averages since Oct 6, 2025.
Short interest
Official, twice monthly · settled Oct 15, 2026
- Shares short
- 42K
- prior 24K
- % of float
- —
- no float on file
- Days to cover
- 1.0
- avg vol 90K
- Change vs prior report
- +76.2%
| Report date | Shares short | $ value short | Change | % float | Days to cover | Price |
|---|---|---|---|---|---|---|
| Oct 15, 2026 | 42K | $2.1M | +76.2% | — | 1.0 | $50.48 |
| Sep 30, 2026 | 24K | $1.2M | +54.2% | — | 1.0 | $50.54 |
| Sep 15, 2026 | 15K | $785K | -9.5% | — | 1.0 | $50.67 |
| Aug 31, 2026 | 17K | $877K | +0.1% | — | 1.0 | $51.19 |
| Aug 14, 2026 | 17K | $876K | +16.8% | — | 1.0 | $51.20 |
| Jul 31, 2026 | 15K | $750K | -50.2% | — | 1.0 | $51.20 |
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 11)
- 54.7%
- 8K of 14K
- 20-day average
- 48.9%
- prior 60.0%
- Percentile vs own history
- 41st
- 233 periods since 2025
Loading prices…
Source: FINRA Reg SHO daily short sale volume · Latest Nov 11, 2026
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.
SDSI'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 · SDSI overview
| Date | Short | Total | Short % of volume |
|---|---|---|---|
| 2026-11-11 | 7,817 | 14,294 | 54.7% |
| 2026-11-10 | 33,148 | 79,089 | 41.9% |
| 2026-11-09 | 16,823 | 46,051 | 36.5% |
| 2026-11-06 | 3,677 | 26,527 | 13.9% |
| 2026-11-05 | 12,292 | 18,713 | 65.7% |
| 2026-11-04 | 27,176 | 35,814 | 75.9% |
| 2026-11-03 | 8,405 | 35,788 | 23.5% |
| 2026-11-02 | 27,669 | 45,332 | 61.0% |
| 2026-10-30 | 9,446 | 13,771 | 68.6% |
| 2026-10-29 | 8,596 | 17,172 | 50.1% |
SDSI short interest FAQ
What is SDSI's short interest?
SDSI had 42K shares sold short and not yet covered in FINRA's Oct 15, 2026 settlement report.
How many days to cover does SDSI have?
1.0 days: 42K shares short divided by an average daily volume of 90K for the Oct 15, 2026 period.
Is SDSI short interest rising or falling?
SDSI short interest rose (+76.2%) from 24K to 42K shares in the Oct 15, 2026 report.
Is SDSI a short squeeze candidate?
Lician's squeeze watch scores SDSI 18 out of 100 (low) from the Oct 15, 2026 report: days to cover 2.5/25, change in short interest vs prior report 15/15. It is a transparent model of how crowded the short side is, not a forecast that a squeeze will happen.
What share of SDSI daily volume is sold short?
48.9% on average over the last 20 sessions to Nov 11, 2026 (FINRA Reg SHO daily short volume; the 41st percentile of its own 20-day averages). Short volume counts market makers' same-day short sales, so it is not short interest.
What was SDSI's latest FINRA short volume?
On Nov 11, 2026, cached FINRA short volume for SDSI was 7,817 shares, 54.7% of 14,294 total volume.
How many SDSI short-volume sessions are listed on this page?
This page lists 10 cached FINRA short-volume sessions for SDSI, from Oct 29, 2026 through Nov 11, 2026.
How did SDSI short volume percent change from the prior cached session?
Cached FINRA short volume for SDSI moved from 41.9% on Nov 10, 2026 to 54.7% on Nov 11, 2026, up 12.8 percentage points.
Not investment advice. Figures as filed or reported, not a live feed.