ProShares UltraPro Short S&P500 (SPXU) short interest & short volume · 1.4M shares short
ProShares UltraPro Short S&P500 official short interest (FINRA, twice monthly) and daily short volume (FINRA Reg SHO), with history, % of float and days to cover.
What changed
SPXU short interest rose 36.6% to 1.4M shares in the Oct 15, 2026 report (1.0 days to cover). Daily short volume averaged 51.1% of volume over the last 20 sessions, down from 56.5% the 20 sessions before, the 19th percentile of its own 20-day averages since Oct 6, 2025.
Short interest
Official, twice monthly · settled Oct 15, 2026
- Shares short
- 1.4M
- prior 1.0M
- % of float
- —
- no float on file
- Days to cover
- 1.0
- avg vol 9.0M
- Change vs prior report
- +36.6%
| Report date | Shares short | $ value short | Change | % float | Days to cover | Price |
|---|---|---|---|---|---|---|
| Oct 15, 2026 | 1.4M | $47.4M | +36.6% | — | 1.0 | $33.71 |
| Sep 30, 2026 | 1.0M | $35.8M | +30.8% | — | 1.0 | $34.80 |
| Sep 15, 2026 | 787K | $28.4M | -28.5% | — | 1.0 | $36.08 |
| Aug 31, 2026 | 1.1M | $38.1M | -12.1% | — | 1.0 | $34.64 |
| Aug 14, 2026 | 1.3M | $41.6M | -20.0% | — | 1.0 | $33.24 |
| Jul 31, 2026 | 1.6M | $58.3M | +21.7% | — | 1.0 | $37.27 |
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%
- 1.5M of 2.8M
- 20-day average
- 51.1%
- prior 56.5%
- Percentile vs own history
- 19th
- 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.
SPXU'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 · SPXU overview
| Date | Short | Total | Short % of volume |
|---|---|---|---|
| 2026-11-11 | 1,539,676 | 2,816,719 | 54.7% |
| 2026-11-10 | 1,302,784 | 2,109,070 | 61.8% |
| 2026-11-09 | 1,791,706 | 2,865,528 | 62.5% |
| 2026-11-06 | 1,428,178 | 3,607,281 | 39.6% |
| 2026-11-05 | 2,547,177 | 5,593,701 | 45.5% |
| 2026-11-04 | 2,069,419 | 3,822,195 | 54.1% |
| 2026-11-03 | 643,230 | 1,201,473 | 53.5% |
| 2026-11-02 | 1,517,815 | 3,244,304 | 46.8% |
| 2026-10-30 | 1,431,528 | 3,515,552 | 40.7% |
| 2026-10-29 | 618,504 | 1,739,718 | 35.5% |
SPXU short interest FAQ
What is SPXU's short interest?
ProShares UltraPro Short S&P500 (SPXU) had 1.4M shares sold short and not yet covered in FINRA's Oct 15, 2026 settlement report.
How many days to cover does SPXU have?
1.0 days: 1.4M shares short divided by an average daily volume of 9.0M for the Oct 15, 2026 period.
Is SPXU short interest rising or falling?
SPXU short interest rose (+36.6%) from 1.0M to 1.4M shares in the Oct 15, 2026 report.
Is SPXU a short squeeze candidate?
Lician's squeeze watch scores SPXU 14 out of 100 (low) from the Oct 15, 2026 report: days to cover 2.5/25, change in short interest vs prior report 11/15. It is a transparent model of how crowded the short side is, not a forecast that a squeeze will happen.
What share of SPXU daily volume is sold short?
51.1% on average over the last 20 sessions to Nov 11, 2026 (FINRA Reg SHO daily short volume; the 19th percentile of its own 20-day averages). Short volume counts market makers' same-day short sales, so it is not short interest.
What was SPXU's latest FINRA short volume?
On Nov 11, 2026, cached FINRA short volume for ProShares UltraPro Short S&P500 (SPXU) was 1,539,676 shares, 54.7% of 2,816,719 total volume.
How many SPXU short-volume sessions are listed on this page?
This page lists 10 cached FINRA short-volume sessions for ProShares UltraPro Short S&P500 (SPXU), from Oct 29, 2026 through Nov 11, 2026.
How did SPXU short volume percent change from the prior cached session?
Cached FINRA short volume for ProShares UltraPro Short S&P500 (SPXU) moved from 61.8% on Nov 10, 2026 to 54.7% on Nov 11, 2026, down 7.1 percentage points.
Not investment advice. Figures as filed or reported, not a live feed.