What is ACEI's short interest?

78,557 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, up 63,955 from the previous settlement.

Why is there no percentage for ACEI?

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 ACEI's days to cover?

3.90 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.

ACEI short interest NYSE Arca

Innovator Equity Autocallable. 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: 78,557
vs previous settlement: +63,955 (+438.0%)
days to cover: 3.90
Settlement date: 15 Sep 2026

Shares short over time

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 ACEI: 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: 745; 14 Sep 2026
Highest in window: 67,041; 21 Nov 2025
Days with a balance: 162
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 67K shares.

History

Every FINRA settlement we hold for ACEI, newest first.

Full reported short interest history
Settlement date	Shares short	Change	Days to cover
15 Sep 2026	78,557	+63,955	3.90
31 Aug 2026	14,602	−14,266	1.00
14 Aug 2026	28,868	+2,421	1.00
31 Jul 2026	26,447	+14,400	1.24
15 Jul 2026	12,047	−7,957	1.00
30 Jun 2026	20,004	−27,569	1.00
15 Jun 2026	47,573	−16,987	1.72
29 May 2026	64,560	+37,934	4.81
15 May 2026	26,626	+2,413	1.61
30 Apr 2026	24,213	−17,419	1.19
15 Apr 2026	41,632	+21,970	1.83
31 Mar 2026	19,662	−7,999	1.03
13 Mar 2026	27,661	+8,506	2.64
27 Feb 2026	19,155	+3,551	1.00
13 Feb 2026	15,604	+5,627	1.00
30 Jan 2026	9,977	−5,998	1.00
15 Jan 2026	15,975	+4,991	1.00
31 Dec 2025	10,984	+7,550	1.22
15 Dec 2025	3,434	−1,827	1.00
28 Nov 2025	5,261	−12,018	1.00
14 Nov 2025	17,279	+11,181	1.00
31 Oct 2025	6,098	−3,771	1.01
15 Oct 2025	9,869	+4,398	1.17
30 Sep 2025	5,471	–	1.02

Scroll inside the table for earlier settlements, back to 30 Sep 2025.

Questions

Frequently asked questions

What is ACEI's short interest?: 78,557 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, up 63,955 from the previous settlement.
Why is there no percentage for ACEI?: 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 ACEI's days to cover?: 3.90 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.