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HowShorted

CPSL short interest Cboe BZX

Calamos Laddered S&P 500 Struc. 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
35,802
vs previous settlement
โˆ’7,141 (-16.6%)
days to cover
1.05
Settlement date
15 Sep 2026

Shares short over time

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

Fails to deliver

The SEC's fails-to-deliver figure for CPSL: 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
2,116
14 Sep 2026
Highest in window
182,268
3 Feb 2026
Days with a balance
172
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for Calamos Laddered S&P 500 Struc 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 182K shares.

History

Every FINRA settlement we hold for CPSL, newest first.

Full reported short interest history
Settlement dateShares shortChangeDays to cover
15 Sep 202635,802โˆ’7,1411.05
31 Aug 202642,943+33,8031.02
14 Aug 20269,140โˆ’23,2271.00
31 Jul 202632,367+3,9131.00
15 Jul 202628,454โˆ’11,4121.00
30 Jun 202639,866+3401.43
15 Jun 202639,526+6,9941.21
29 May 202632,532+17,6541.99
15 May 202614,878+7,2821.04
30 Apr 20267,596โˆ’3,7461.00
15 Apr 202611,342โˆ’8,6701.00
31 Mar 202620,012+5,8481.12
13 Mar 202614,164+9,3001.00
27 Feb 20264,864โˆ’13,1541.00
13 Feb 202618,018+8,9561.00
30 Jan 20269,062โˆ’22,1781.00
15 Jan 202631,240+10,5561.05
31 Dec 202520,684+7,8561.00
15 Dec 202512,828โˆ’20,8331.00
28 Nov 202533,661+18,9922.09
14 Nov 202514,669โˆ’7,9821.00
31 Oct 202522,651+8,5661.70
15 Oct 202514,085โˆ’10,8131.00
30 Sep 202524,898+14,0891.00
15 Sep 202510,809โˆ’23,1741.00
29 Aug 202533,983+33,2271.00
15 Aug 2025756โˆ’21,5831.00
31 Jul 202522,339+11,3261.00
15 Jul 202511,013+5,6111.00
30 Jun 20255,402โˆ’3,3691.00
13 Jun 20258,771+7691.00
30 May 20258,002โˆ’2,6831.00
15 May 202510,685โˆ’14,5131.00
30 Apr 202525,198+11,4911.95
15 Apr 202513,707+7,9821.00
31 Mar 20255,725โˆ’3,5951.00
14 Mar 20259,320+2451.00
28 Feb 20259,075โˆ’2,1741.05
14 Feb 202511,249+3,1161.00
31 Jan 20258,133โˆ’2,4181.00
15 Jan 202510,551+3631.00
31 Dec 202410,188โˆ’3,1801.00
13 Dec 202413,368+9511.00
29 Nov 202412,417+8851.00
15 Nov 202411,532+6631.00
31 Oct 202410,869โˆ’10,4871.21
15 Oct 202421,356+16,4881.00
30 Sep 20244,868โˆ’20,0221.00
13 Sep 202424,890โ€“1.00

Scroll inside the table for earlier settlements, back to 13 Sep 2024.

Questions

Frequently asked questions

What is CPSL's short interest?
35,802 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, down 7,141 from the previous settlement.
Why is there no percentage for CPSL?
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 CPSL's days to cover?
1.05 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.