PRTO short interest NYSE Arca
RCN Pareto Strategic Allocatio. 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
- 623
- vs previous settlement
- +419 (+205.4%)
- days to cover
- 3.18
- Settlement date
- 15 Sep 2026
Days to cover
FINRA's own figure: reported shares short divided by the security's average daily trading volume, published alongside each settlement.
Fails to deliver
The SEC's fails-to-deliver figure for PRTO: 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.
- Last balance on file
- 86
- 11 Sep 2026
- Highest in window
- 9,747
- 9 Jun 2026
- Days with a balance
- 67
- Window
- 16 Sep 2025 to 14 Sep 2026
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 9.7K shares.
History
Every FINRA settlement we hold for PRTO, newest first.
| Settlement date | Shares short | Change | Days to cover |
|---|---|---|---|
| 15 Sep 2026 | 623 | +419 | 3.18 |
| 31 Aug 2026 | 204 | −83 | 1.00 |
| 14 Aug 2026 | 287 | −1,157 | 2.54 |
| 31 Jul 2026 | 1,444 | +1,243 | 1.00 |
| 15 Jul 2026 | 201 | −137 | 1.00 |
| 30 Jun 2026 | 338 | −1,640 | 1.00 |
| 15 Jun 2026 | 1,978 | +1,736 | 1.00 |
| 15 May 2026 | 242 | −2,589 | 1.00 |
| 30 Apr 2026 | 2,831 | −2,760 | 1.46 |
| 15 Apr 2026 | 5,591 | +4,485 | 3.37 |
| 31 Mar 2026 | 1,106 | −57,345 | 1.00 |
| 31 Dec 2019 | 58,451 | −64,920 | 1.00 |
| 13 Dec 2019 | 123,371 | +4,742 | 1.00 |
| 29 Nov 2019 | 118,629 | −81,184 | 1.00 |
| 15 Nov 2019 | 199,813 | −96,488 | 1.00 |
| 31 Oct 2019 | 296,301 | −92,144 | 2.04 |
| 15 Oct 2019 | 388,445 | +64,240 | 1.38 |
| 30 Sep 2019 | 324,205 | −388,838 | 1.00 |
| 13 Sep 2019 | 713,043 | −45,486 | 2.12 |
| 30 Aug 2019 | 758,529 | −166,426 | 3.97 |
| 15 Aug 2019 | 924,955 | −27,445 | 2.60 |
| 31 Jul 2019 | 952,400 | −141,852 | 3.44 |
| 15 Jul 2019 | 1,094,252 | −51,671 | 1.93 |
| 28 Jun 2019 | 1,145,923 | −229,289 | 1.32 |
| 14 Jun 2019 | 1,375,212 | +434,932 | 1.32 |
| 31 May 2019 | 940,280 | +225,713 | 1.00 |
| 15 May 2019 | 714,567 | −297,576 | 1.81 |
| 30 Apr 2019 | 1,012,143 | +152,887 | 1.07 |
| 15 Apr 2019 | 859,256 | −344,762 | 1.00 |
| 29 Mar 2019 | 1,204,018 | +179,550 | 1.00 |
| 15 Mar 2019 | 1,024,468 | +174,071 | 2.58 |
| 28 Feb 2019 | 850,397 | +22,832 | 5.82 |
| 15 Feb 2019 | 827,565 | +352,555 | 4.72 |
| 31 Jan 2019 | 475,010 | +196,050 | 6.31 |
| 15 Jan 2019 | 278,960 | +251,787 | 3.86 |
| 31 Dec 2018 | 27,173 | +17,871 | 1.00 |
| 14 Dec 2018 | 9,302 | +154 | 1.00 |
| 30 Nov 2018 | 9,148 | −22 | 1.00 |
| 15 Nov 2018 | 9,170 | −4,857 | 1.00 |
| 31 Oct 2018 | 14,027 | −19,063 | 1.00 |
| 15 Oct 2018 | 33,090 | +4,778 | 1.00 |
| 28 Sep 2018 | 28,312 | +13,385 | 1.00 |
| 14 Sep 2018 | 14,927 | −22,583 | 1.00 |
| 31 Aug 2018 | 37,510 | +27,065 | 1.78 |
| 15 Aug 2018 | 10,445 | −19,283 | 1.00 |
| 31 Jul 2018 | 29,728 | +10,803 | 1.16 |
| 13 Jul 2018 | 18,925 | +2,067 | 1.55 |
| 29 Jun 2018 | 16,858 | −31,814 | 1.00 |
| 15 Jun 2018 | 48,672 | +23,312 | 1.14 |
| 31 May 2018 | 25,360 | +19,826 | 1.17 |
| 15 May 2018 | 5,534 | −2,296 | 1.00 |
| 30 Apr 2018 | 7,830 | −3,729 | 1.00 |
| 13 Apr 2018 | 11,559 | +2,899 | 1.00 |
| 29 Mar 2018 | 8,660 | +288 | 1.00 |
| 15 Mar 2018 | 8,372 | −25,964 | 1.00 |
| 28 Feb 2018 | 34,336 | +6,871 | 1.69 |
| 15 Feb 2018 | 27,465 | +14,039 | 1.05 |
| 31 Jan 2018 | 13,426 | −65,419 | 1.00 |
| 12 Jan 2018 | 78,845 | +63,049 | 1.00 |
| 29 Dec 2017 | 15,796 | – | 1.00 |
Scroll inside the table for earlier settlements, back to 29 Dec 2017.
Questions
Frequently asked questions
- What is PRTO's short interest?
- 623 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, up 419 from the previous settlement.
- Why is there no percentage for PRTO?
- 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 PRTO's days to cover?
- 3.18 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.