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HowShorted

CAOS short interest Cboe BZX

Alpha Architect Tail Risk 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
24,577
vs previous settlement
−32,349 (-56.8%)
days to cover
1.00
Settlement date
15 Sep 2026

Shares short over time

Aggregate net short position time series for CAOS 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 CAOS days to cover

Fails to deliver

The SEC's fails-to-deliver figure for CAOS: 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
1,378
19 Aug 2026
Highest in window
31,255
4 Mar 2026
Days with a balance
111
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for Alpha Architect Tail Risk 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 31K shares.

History

Every FINRA settlement we hold for CAOS, newest first.

Full reported short interest history
Settlement dateShares shortChangeDays to cover
15 Sep 202624,577−32,3491.00
31 Aug 202656,926+46,8101.55
14 Aug 202610,116−101,0931.00
31 Jul 2026111,209+70,8591.55
15 Jul 202640,350+28,9691.00
30 Jun 202611,381−5,6581.00
15 Jun 202617,039−27,0091.00
29 May 202644,048+38,8691.00
15 May 20265,179−10,9401.00
30 Apr 202616,119+14,5241.00
15 Apr 20261,595−123,2211.00
31 Mar 2026124,816+78,0161.39
13 Mar 202646,800+10,8721.00
27 Feb 202635,928−13,0551.00
13 Feb 202648,983+2,8841.13
30 Jan 202646,099−24,7961.00
15 Jan 202670,895+44,2562.18
31 Dec 202526,639−33,2661.00
15 Dec 202559,905+43,8281.73
28 Nov 202516,077+12,6111.00
14 Nov 20253,466−27,7741.00
31 Oct 202531,240−151.13
15 Oct 202531,255+8,3931.00
30 Sep 202522,862−22,3461.00
15 Sep 202545,208+42,9311.04
29 Aug 20252,277−3,2171.00
15 Aug 20255,494+5,1941.00
31 Jul 2025300−4,7671.00
15 Jul 20255,067−4,4801.00
30 Jun 20259,547−4,4591.00
13 Jun 202514,006+8,4591.00
30 May 20255,547−11,0651.00
15 May 202516,612+15,9621.00
30 Apr 2025650−30,0831.00
15 Apr 202530,733+30,1621.00
31 Mar 2025571−29,0721.00
14 Mar 202529,643+24,0721.00
28 Feb 20255,571−10,1601.00
14 Feb 202515,731−11,0501.00
31 Jan 202526,781−19,7471.06
15 Jan 202546,528+6,6442.31
31 Dec 202439,884+7,8721.47
13 Dec 202432,012+6,4762.88
29 Nov 202425,536+7552.56
15 Nov 202424,781−3,3661.00
31 Oct 202428,147+13,3651.83
15 Oct 202414,782−3,1501.00
30 Sep 202417,932+12,4431.55
13 Sep 20245,489+2,1031.51
30 Aug 20243,386−42,2571.00
15 Aug 202445,643+30,5831.00
31 Jul 202415,060+2,0931.91
15 Jul 202412,967−1,8671.48
28 Jun 202414,834+10,5962.90
14 Jun 20244,238+101.00
31 May 20244,228+3,7761.00
15 May 2024452−1341.00
30 Apr 2024586−11,9581.00
15 Apr 202412,544+10,4942.26
28 Mar 20242,050−2,4911.00
15 Mar 20244,541−1,5361.01
29 Feb 20246,077+3,2272.57
15 Feb 20242,850−7,1891.00
31 Jan 202410,039+4,0281.80
12 Jan 20246,011+5,8862.10
29 Dec 2023125+1241.00
15 Dec 20231−2251.00
30 Nov 2023226+2191.00
15 Nov 20237−1431.00
31 Oct 2023150−2231.00
13 Oct 2023373+2521.00
29 Sep 2023121−3051.00
15 Sep 2023426+2351.00
31 Aug 2023191−1,1861.00
15 Aug 20231,377−7,3361.00
31 Jul 20238,713+2886.96
14 Jul 20238,425−7,2506.40
30 Jun 202315,675+15,3513.33
15 Jun 2023324+2231.00
31 May 2023101−741.00
15 May 2023175+1461.00
28 Apr 202329−6231.00
14 Apr 2023652+3421.00
31 Mar 2023310−5381.00
15 Mar 2023848–1.00

Scroll inside the table for earlier settlements, back to 15 Mar 2023.

Questions

Frequently asked questions

What is CAOS's short interest?
24,577 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, down 32,349 from the previous settlement.
Why is there no percentage for CAOS?
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 CAOS'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.

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