What is TCAI's short interest?

12,848 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, up 9,248 from the previous settlement.

Why is there no percentage for TCAI?

Because no defensible share count exists to divide by: no SEC filer maps to the symbol (funds, notes, preferreds, warrants and foreign listings). No SEC filer maps to this symbol in EDGAR's ticker file. That is the normal case for funds, exchange-traded notes, preferred shares, warrants, units and foreign listings, none of which file a share count we could divide by.

What is TCAI'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.

TCAI short interest NYSE

Tortoise AI Infrastructure 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: no SEC filer maps to the symbol (funds, notes, preferreds, warrants and foreign listings).

Shares short: 12,848
vs previous settlement: +9,248 (+256.9%)
days to cover: 1.00
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 TCAI: 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: 19,550; 10 Sep 2026
Highest in window: 731,264; 24 Sep 2025
Days with a balance: 176
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 731K shares.

History

Every FINRA settlement we hold for TCAI, newest first.

Full reported short interest history
Settlement date	Shares short	Change	Days to cover
15 Sep 2026	12,848	+9,248	1.00
31 Aug 2026	3,600	−150,373	1.00
14 Aug 2026	153,973	+152,992	2.16
31 Jul 2026	981	−568	1.00
15 Jul 2026	1,549	−1,453	1.00
30 Jun 2026	3,002	−46,023	1.00
15 Jun 2026	49,025	+3,141	1.00
29 May 2026	45,884	−24,002	1.00
15 May 2026	69,886	+42,677	1.00
30 Apr 2026	27,209	−11,288	1.00
15 Apr 2026	38,497	+29,024	1.00
31 Mar 2026	9,473	−157,147	1.00
13 Mar 2026	166,620	+161,028	3.75
27 Feb 2026	5,592	+2,603	1.00
13 Feb 2026	2,989	−10,513	1.00
30 Jan 2026	13,502	−36,502	1.00
15 Jan 2026	50,004	+47,210	2.38
31 Dec 2025	2,794	+933	1.00
15 Dec 2025	1,861	−8,053	1.00
28 Nov 2025	9,914	+9,071	1.00
14 Nov 2025	843	−83,323	1.00
31 Oct 2025	84,166	+75,363	2.09
15 Oct 2025	8,803	−13,920	1.00
30 Sep 2025	22,723	+12,016	1.00
15 Sep 2025	10,707	+4,400	1.00
29 Aug 2025	6,307	+1,823	1.00
15 Aug 2025	4,484	–	1.00

Scroll inside the table for earlier settlements, back to 15 Aug 2025.

Questions

Frequently asked questions

What is TCAI's short interest?: 12,848 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, up 9,248 from the previous settlement.
Why is there no percentage for TCAI?: Because no defensible share count exists to divide by: no SEC filer maps to the symbol (funds, notes, preferreds, warrants and foreign listings). No SEC filer maps to this symbol in EDGAR's ticker file. That is the normal case for funds, exchange-traded notes, preferred shares, warrants, units and foreign listings, none of which file a share count we could divide by.
What is TCAI'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 symbols with counts only: shares short without a percentage. Browse by name: US companies A to Z.