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HowShorted

CBXA short interest Cboe BZX

Calamos Bitcoin 90 Series Stru. 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
297
vs previous settlement
−8,035 (-96.4%)
days to cover
1.00
Settlement date
15 Sep 2026

Shares short over time

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

Fails to deliver

The SEC's fails-to-deliver figure for CBXA: 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
5,507
22 Jul 2026
Highest in window
5,507
21 Jul 2026
Days with a balance
45
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for Calamos Bitcoin 90 Series Stru 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 5.5K shares.

History

Every FINRA settlement we hold for CBXA, newest first.

Full reported short interest history
Settlement dateShares shortChangeDays to cover
15 Sep 2026297−8,0351.00
31 Aug 20268,332−10621.47
14 Aug 20268,438+18223.12
31 Jul 20268,256+1772.72
15 Jul 20268,079−9142.45
30 Jun 20268,993+2,4812.97
15 Jun 20266,512+6,4221.52
29 May 202690+471.00
15 May 202643+21.00
30 Apr 202641−3371.00
15 Apr 2026378+631.00
31 Mar 2026315+41.00
13 Mar 2026311−1531.00
27 Feb 2026464−2,8961.00
13 Feb 20263,360+3,3271.00
30 Jan 202633−241.00
15 Jan 202657−1,0511.00
15 Dec 20251,108−6051.70
28 Nov 20251,713−7102.69
14 Nov 20252,423+2,2231.14
31 Oct 2025200−2751.00
15 Oct 2025475−3281.00
30 Sep 2025803+5641.00
15 Sep 2025239+41.00
29 Aug 2025235−6041.00
15 Aug 2025839+6041.00
31 Jul 2025235−2311.00
15 Jul 2025466−2,5301.00
30 Jun 20252,996+1,2021.54
13 Jun 20251,794−1,4061.00
30 May 20253,200−26,6071.00
15 May 202529,807+13,7562.04
30 Apr 202516,051+9,1731.87
15 Apr 20256,878–1.00

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

Questions

Frequently asked questions

What is CBXA's short interest?
297 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, down 8,035 from the previous settlement.
Why is there no percentage for CBXA?
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 CBXA'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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