ACII short interest NYSE Arca
Innovator Index Autocallable I. 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
- 17,568
- vs previous settlement
- โ1,292 (-6.9%)
- days to cover
- 1.00
- 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 ACII: 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
- 296
- 11 Sep 2026
- Highest in window
- 384,219
- 1 Apr 2026
- Days with a balance
- 190
- 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 384K shares.
History
Every FINRA settlement we hold for ACII, newest first. สณ marks a figure FINRA itself flagged as revised.
| Settlement date | Shares short | Change | Days to cover |
|---|---|---|---|
| 15 Sep 2026 | 17,568 | โ1,292 | 1.00 |
| 31 Aug 2026 | 18,860 | โ23,466 | 1.00 |
| 14 Aug 2026 | 42,326 | +4,470 | 1.00 |
| 31 Jul 2026 | 37,856 | โ30,458 | 1.03 |
| 15 Jul 2026 | 68,314 | +29,912 | 1.73 |
| 30 Jun 2026 | 38,402 | โ12,619 | 1.00 |
| 15 Jun 2026 | 51,021 | โ6,721 | 1.00 |
| 29 May 2026 | 57,742 | +31,063 | 1.09 |
| 15 May 2026 | 26,679 | +4,759 | 1.00 |
| 30 Apr 2026 | 21,920 | โ10,068 | 1.00 |
| 15 Apr 2026 | 31,988 | +2,039 | 1.00 |
| 31 Mar 2026 | 29,949 | โ19,831 | 1.00 |
| 13 Mar 2026 | 49,780 | โ13,462 | 1.00 |
| 27 Feb 2026 | 63,242 | +16,132 | 1.85 |
| 13 Feb 2026 | 47,110 | +9,950 | 1.19 |
| 30 Jan 2026 | 37,160 | +25,205 | 1.00 |
| 15 Jan 2026 | 11,955 | โ22,859 | 1.00 |
| 31 Dec 2025 | 34,814 | +16,504 | 1.38 |
| 15 Dec 2025 | 18,310 | โ9,789 | 1.82 |
| 28 Nov 2025 | 28,099 | +19,458 | 2.73 |
| 14 Nov 2025 | 8,641 | +4,805 | 1.00 |
| 31 Oct 2025 | 3,836 | โ7,618 | 1.45 |
| 15 Oct 2025 | 11,454 | โ3,350 | 1.77 |
| 30 Sep 2025 | 14,804 | +10,339 | 3.81 |
| 30 Nov 2022 | 4,465 | โ7,560 | 1.00 |
| 15 Nov 2022 | 12,025 | โ1,157,371 | 1.00 |
| 31 Oct 2022 | 1,169,396 | +1,162,150 | 1.53 |
| 14 Oct 2022 | 7,246 | โ101 | 1.00 |
| 30 Sep 2022 | 7,347 | โ921 | 1.00 |
| 15 Sep 2022 | 8,268 | +682 | 1.00 |
| 31 Aug 2022 | 7,586 | +1,438 | 1.00 |
| 15 Aug 2022 | 6,148 | โ352 | 1.00 |
| 29 Jul 2022 | 6,500 | โ3,507 | 1.00 |
| 15 Jul 2022 | 10,007 | +27 | 1.00 |
| 30 Jun 2022 | 9,980 | +955 | 1.00 |
| 15 Jun 2022 | 9,025 | +489 | 1.00 |
| 31 May 2022 | 8,536 | โ1,374 | 1.00 |
| 13 May 2022 | 9,910 | โ1,453 | 1.00 |
| 29 Apr 2022 | 11,363 | โ6,728 | 1.00 |
| 14 Apr 2022 | 18,091 | +2,565 | 1.47 |
| 31 Mar 2022 | 15,526 | +7,023 | 1.00 |
| 15 Mar 2022 | 8,503 | โ8,076 | 1.00 |
| 28 Feb 2022 | 16,579 | โ165 | 1.00 |
| 15 Feb 2022 | 16,744 | โ2,267 | 1.00 |
| 31 Jan 2022 | 19,011 | +15,871 | 1.00 |
| 14 Jan 2022 | 3,140 | โ935 | 1.00 |
| 31 Dec 2021 | 4,075 | โ20,420 | 1.00 |
| 15 Dec 2021 | 24,495 | โ5,832 | 1.00 |
| 30 Nov 2021 | 30,327 | โ52,128 | 1.30 |
| 15 Nov 2021 | 82,455 | โ191,811 | 1.22 |
| 29 Oct 2021 | 274,266 | +250,138 | 3.16 |
| 15 Oct 2021 | 24,128 | +3,935 | 1.00 |
| 30 Sep 2021 | 20,193 | +1,346 | 1.00 |
| 15 Sep 2021 | 18,847 | โ47,879 | 1.00 |
| 31 Aug 2021 | 66,726 | +43,826 | 1.68 |
| 13 Aug 2021 | 22,900 | +8,467 | 1.18 |
| 30 Jul 2021 | 14,433 | โ16,395 | 1.00 |
| 15 Jul 2021 | 30,828 | โ15,147 | 1.00 |
| 30 Jun 2021 | 45,975 | +15,209 | 1.00 |
| 15 Jun 2021 | 30,766สณ | โ42,364 | 1.00 |
| 28 May 2021 | 73,130 | โ53,133 | 2.24 |
| 14 May 2021 | 126,263 | +15,767 | 1.33 |
| 30 Apr 2021 | 110,496 | +69,884 | 1.00 |
| 15 Apr 2021 | 40,612 | +34,073 | 1.00 |
| 31 Mar 2021 | 6,539 | โ | 4.59 |
Scroll inside the table for earlier settlements, back to 31 Mar 2021.
Questions
Frequently asked questions
- What is ACII's short interest?
- 17,568 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, down 1,292 from the previous settlement.
- Why is there no percentage for ACII?
- 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 ACII'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.