BSEP stock
Innovator S&P 500 Buffer ETF - September (BSEP) short interest & short volume · 86K shares short
Innovator S&P 500 Buffer ETF - September official short interest (FINRA, twice monthly) and daily short volume (FINRA Reg SHO), with history, % of float and days to cover.
What changed
BSEP short interest rose 1.8% to 86K shares in the Oct 15, 2026 report (6.8 days to cover). Daily short volume averaged 47.3% of volume over the last 20 sessions, down from 65.2% the 20 sessions before, the 76th percentile of its own 20-day averages since Oct 6, 2025.
Short interest
Official, twice monthly · settled Oct 15, 2026
- Shares short
- 86K
- prior 85K
- % of float
- —
- no float on file
- Days to cover
- 6.8
- avg vol 13K
- Change vs prior report
- +1.8%
| Report date | Shares short | $ value short | Change | % float | Days to cover | Price |
|---|---|---|---|---|---|---|
| Oct 15, 2026 | 86K | $4.7M | +1.8% | — | 6.8 | $54.52 |
| Sep 30, 2026 | 85K | $4.6M | +23.4% | — | 1.0 | $53.97 |
| Sep 15, 2026 | 69K | $3.7M | +598.5% | — | 1.0 | $53.64 |
| Aug 31, 2026 | 10K | $533K | +138.2% | — | 1.0 | $54.11 |
| Aug 14, 2026 | 4K | $223K | -31.3% | — | 1.0 | $53.92 |
| Jul 31, 2026 | 6K | $321K | -0.1% | — | 2.3 | $53.32 |
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)
- 45.1%
- 3K of 6K
- 20-day average
- 47.3%
- prior 65.2%
- Percentile vs own history
- 76th
- 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.
BSEP'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 · BSEP overview
| Date | Short | Total | Short % of volume |
|---|---|---|---|
| 2026-11-11 | 2,796 | 6,198 | 45.1% |
| 2026-11-10 | 1,510 | 6,242 | 24.2% |
| 2026-11-09 | 932 | 7,493 | 12.4% |
| 2026-11-06 | 1,436 | 2,623 | 54.8% |
| 2026-11-05 | 9,990 | 14,617 | 68.3% |
| 2026-11-04 | 4,623 | 6,673 | 69.3% |
| 2026-11-03 | 2,376 | 8,353 | 28.4% |
| 2026-11-02 | 14,634 | 16,479 | 88.8% |
| 2026-10-30 | 5,637 | 7,681 | 73.4% |
| 2026-10-29 | 2,049 | 8,614 | 23.8% |
BSEP short interest FAQ
What is BSEP's short interest?
Innovator S&P 500 Buffer ETF - September (BSEP) had 86K shares sold short and not yet covered in FINRA's Oct 15, 2026 settlement report.
How many days to cover does BSEP have?
6.8 days: 86K shares short divided by an average daily volume of 13K for the Oct 15, 2026 period.
Is BSEP short interest rising or falling?
BSEP short interest rose (+1.8%) from 85K to 86K shares in the Oct 15, 2026 report.
Is BSEP a short squeeze candidate?
Lician's squeeze watch scores BSEP 18 out of 100 (low) from the Oct 15, 2026 report: days to cover 17/25, change in short interest vs prior report 0.5/15. It is a transparent model of how crowded the short side is, not a forecast that a squeeze will happen.
What share of BSEP daily volume is sold short?
47.3% on average over the last 20 sessions to Nov 11, 2026 (FINRA Reg SHO daily short volume; the 76th percentile of its own 20-day averages). Short volume counts market makers' same-day short sales, so it is not short interest.
What was BSEP's latest FINRA short volume?
On Nov 11, 2026, cached FINRA short volume for Innovator S&P 500 Buffer ETF - September (BSEP) was 2,796 shares, 45.1% of 6,198 total volume.
How many BSEP short-volume sessions are listed on this page?
This page lists 10 cached FINRA short-volume sessions for Innovator S&P 500 Buffer ETF - September (BSEP), from Oct 29, 2026 through Nov 11, 2026.
How did BSEP short volume percent change from the prior cached session?
Cached FINRA short volume for Innovator S&P 500 Buffer ETF - September (BSEP) moved from 24.2% on Nov 10, 2026 to 45.1% on Nov 11, 2026, up 20.9 percentage points.
Not investment advice. Figures as filed or reported, not a live feed.