Federal Data Hub › SEC Fails-to-Deliver · JSON
Fails-to-deliver · CUSIP 12811T829
Over the rolling 12-month window, securities of CALAMOS ETF TR S&P 500 STRUCTU failed to deliver in the NSCC's Continuous Net Settlement system on 64 settlement days, totaling 154,478 fail shares and peaking at 39,514 shares on 2025-10-23. Persistent or spiking fails-to-deliver can signal delivery stress, naked short selling, or operational settlement problems.
| Settlement date | Fail shares | Price |
|---|---|---|
| 2026-10-14 | 536 | $28.54 |
| 2026-10-13 | 1,089 | $28.51 |
| 2026-10-09 | 3,075 | $28.52 |
| 2026-10-08 | 2,820 | $28.52 |
| 2026-10-07 | 2,502 | $28.53 |
| 2026-10-06 | 1,429 | $28.45 |
| 2026-10-05 | 2,634 | $28.42 |
| 2026-10-02 | 2,837 | $28.40 |
| 2026-10-01 | 886 | $28.32 |
| 2026-09-28 | 2,062 | $28.32 |
| 2026-09-25 | 2,062 | $28.31 |
| 2026-09-24 | 2,062 | $28.32 |
| 2026-09-21 | 71 | $28.29 |
| 2026-09-15 | 747 | $28.25 |
| 2026-09-11 | 60 | $28.23 |
| 2026-09-10 | 46 | $28.24 |
| 2026-08-28 | 838 | $28.20 |
| 2026-08-27 | 838 | $28.19 |
| 2026-08-26 | 746 | $28.17 |
| 2026-08-13 | 47 | $28.14 |
| 2026-08-12 | 65 | $28.11 |
| 2026-08-11 | 65 | $28.12 |
| 2026-04-14 | 86 | $27.31 |
| 2026-04-13 | 86 | $27.27 |
| 2026-04-10 | 86 | $27.27 |
| 2026-04-09 | 86 | $27.22 |
| 2026-04-02 | 30 | $27.05 |
| 2026-04-01 | 30 | $27.00 |
| 2026-03-31 | 30 | $26.86 |
| 2026-03-30 | 30 | $26.87 |
| 2026-03-19 | 101 | $27.07 |
| 2026-03-18 | 101 | $27.13 |
| 2026-03-12 | 1 | $27.17 |
| 2026-03-11 | 1 | $27.18 |
| 2026-02-11 | 27 | $27.23 |
| 2026-02-10 | 27 | $27.24 |
| 2026-02-09 | 27 | $27.22 |
| 2026-02-06 | 27 | $27.12 |
| 2025-12-19 | 56 | $26.98 |
| 2025-12-18 | 56 | $26.98 |
| 2025-12-17 | 56 | $26.99 |
| 2025-12-16 | 89 | $27.01 |
| 2025-12-08 | 307 | $27.00 |
| 2025-12-05 | 475 | $26.98 |
| 2025-12-04 | 407 | $26.99 |
| 2025-12-03 | 407 | $26.95 |
| 2025-11-28 | 101 | $26.93 |
| 2025-11-26 | 101 | $26.90 |
| 2025-11-25 | 99 | $26.87 |
| 2025-11-21 | 119 | $26.73 |
| 2025-11-20 | 346 | $26.80 |
| 2025-11-19 | 345 | $26.82 |
| 2025-11-18 | 84 | $26.82 |
| 2025-11-17 | 229 | $26.83 |
| 2025-11-14 | 140 | $26.82 |
| 2025-11-13 | 2,825 | $26.92 |
| 2025-11-12 | 2,648 | $26.92 |
| 2025-11-03 | 1,604 | $26.92 |
| 2025-10-31 | 153 | $26.90 |
| 2025-10-30 | 153 | $26.92 |
| 2025-10-28 | 1,509 | $26.97 |
| 2025-10-27 | 14,902 | $26.91 |
| 2025-10-24 | 15,792 | $26.91 |
| 2025-10-23 | 39,514 | $26.86 |
| 2025-10-22 | 23,681 | $26.88 |
| 2025-10-21 | 12,730 | $26.87 |
| 2025-10-20 | 10,724 | $26.83 |
| 2025-10-16 | 3,587 | $26.82 |
| 2025-10-15 | 510 | $26.81 |
| 2025-10-14 | 378 | $26.83 |
| 2025-10-10 | 5,618 | $26.84 |
| 2025-10-09 | 5,255 | $26.86 |
| 2025-10-08 | 1,679 | $26.83 |
| 2025-10-07 | 203 | $26.87 |
| 2025-10-06 | 1,023 | $26.84 |
| 2025-10-03 | 1,222 | $26.84 |
| 2025-10-02 | 1,055 | $26.85 |
| 2025-07-29 | 1 | $26.45 |
| 2025-07-28 | 1 | $26.45 |
| 2025-07-25 | 1 | $26.42 |
| 2025-07-23 | 468 | $26.37 |
| 2025-07-22 | 1,383 | $26.36 |
| 2025-07-21 | 1,281 | $26.36 |
| 2025-06-26 | 192 | $26.12 |
| 2025-06-25 | 192 | $26.13 |
| 2025-06-13 | 1 | $26.02 |
A "fail-to-deliver" occurs when a party in a securities trade does not deliver the shares by the settlement date. The SEC publishes twice-monthly files of CNS fails-to-deliver by security. This page aggregates the rolling 12-month window. CUSIP 12811T829 links to this security's other federal filings across the hub.
Source: SEC Fails-to-Deliver Data. License: CC0 1.0.