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HowShorted

SLON short interest NYSE Arca

ProShares Ultra Solana ETF. FINRA's reported shares short for this symbol, twice a month by settlement date, shown as the regulator publishes them. No percentage is shown: exchange-traded product: its share count floats with creation and redemption.

Shares short
102,049
vs previous settlement
−63,451 (-38.3%)
days to cover
1.00
Settlement date
15 Sep 2026

Shares short over time

Aggregate net short position time series for SLON shares short

Days to cover

FINRA's own figure: reported shares short divided by the security's average daily trading volume, published alongside each settlement.

Aggregate net short position time series for SLON days to cover

Fails to deliver

The SEC's fails-to-deliver figure for SLON: the aggregate net balance of shares that failed to be delivered at each settlement date, published by the SEC twice a month and shown here verbatim for the trailing window. A balance is not a daily flow, and a fail has many ordinary causes; the SEC says it cannot guarantee the accuracy of the data. See what fails to deliver are and the largest balances today.

Latest balance
484
14 Sep 2026
Highest in window
157,607
25 Nov 2025
Days with a balance
108
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for ProShares Ultra Solana ETF fails to deliver

Source: U.S. Securities and Exchange Commission, fails-to-deliver data (public domain). Only settlement days with a positive balance appear; the largest balance in the window was 158K shares.

History

Every FINRA settlement we hold for SLON, newest first.

Full reported short interest history
Settlement dateShares shortChangeDays to cover
15 Sep 2026102,049−63,4511.00
31 Aug 2026165,500+113,0691.36
14 Aug 202652,431+26,6751.97
31 Jul 202625,756−4,6851.00
15 Jul 202630,441−51,0451.00
30 Jun 202681,486−10,3081.55
15 Jun 202691,794+50,3781.28
29 May 202641,416−209,5491.01
15 May 2026250,965−61,9491.00
30 Apr 2026312,914+95,0311.39
15 Apr 2026217,883−26,6541.00
31 Mar 2026244,537+10,8661.00
13 Mar 2026233,671−1571.00
27 Feb 2026233,828−89,9191.00
13 Feb 2026323,747−43,5171.00
30 Jan 2026367,264+26,2051.80
15 Jan 2026341,059+58,7881.64
31 Dec 2025282,271+72,0701.51
15 Dec 2025210,201−148,2701.00
28 Nov 2025358,471+251,8771.22
14 Nov 2025106,594+67,7101.00
31 Oct 202538,884+13,0331.00
15 Oct 202525,851+6541.00
30 Sep 202525,197−23,8361.00
15 Sep 202549,033+7,6371.00
29 Aug 202541,396+32,6171.00
15 Aug 20258,779−4,8731.00
31 Jul 202513,652–1.00

Scroll inside the table for earlier settlements, back to 31 Jul 2025.

Questions

Frequently asked questions

What is SLON's short interest?
102,049 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, down 63,451 from the previous settlement.
Why is there no percentage for SLON?
Because no defensible share count exists to divide by: exchange-traded product: its share count floats with creation and redemption. An exchange-traded product's share count changes every day as units are created and redeemed, so no filing gives a stable count to divide by. FINRA's shares-short figure is exact; a percentage of it would not be.
What is SLON's days to cover?
1.00 days for settlement date 15 Sep 2026: FINRA's own short interest ratio, the reported shares short divided by average daily trading volume, published in the same file and shown verbatim. We hold no volume data ourselves.
Is this the short float?
No. This page shows FINRA's share count only. Short float divides that count by the public float, and short interest as we publish it elsewhere divides it by shares outstanding from SEC filings. Neither denominator is available for this line, so neither ratio is shown.
How often does this update?
FINRA member firms report short positions as of the 15th and the last business day of each month, and FINRA publishes the consolidated figures about nine business days later. We ingest each file the day it appears and re-read recent settlements for revisions.

Ranked companies with a percentage: most shorted US stocks. Other funds by shares short and days to cover: most shorted ETFs. Other symbols with counts only: shares short without a percentage. Browse by name: US companies A to Z.