Federal Data Hub › SEC Fails-to-Deliver · JSON
Fails-to-deliver · CUSIP 12811T704
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 20 settlement days, totaling 186,800 fail shares and peaking at 75,542 shares on 2025-08-05. Persistent or spiking fails-to-deliver can signal delivery stress, naked short selling, or operational settlement problems.
| Settlement date | Fail shares | Price |
|---|---|---|
| 2026-09-28 | 2,117 | $28.14 |
| 2026-09-25 | 2,139 | $28.11 |
| 2026-09-24 | 2,096 | $28.10 |
| 2026-09-23 | 29 | $28.13 |
| 2026-09-22 | 131 | $28.13 |
| 2026-09-18 | 21 | $28.01 |
| 2026-09-17 | 18 | $27.95 |
| 2026-09-16 | 53 | $28.01 |
| 2026-09-14 | 517 | $28.08 |
| 2026-09-02 | 3,592 | $28.04 |
| 2026-09-01 | 9,687 | $28.09 |
| 2026-08-31 | 7,544 | $28.10 |
| 2026-08-28 | 7,189 | $28.14 |
| 2026-08-27 | 415 | $28.09 |
| 2026-08-26 | 1,232 | $28.06 |
| 2026-08-25 | 2,434 | $28.05 |
| 2026-08-24 | 1,112 | $28.08 |
| 2026-08-21 | 822 | $28.05 |
| 2026-08-20 | 182 | $28.09 |
| 2026-08-19 | 1 | $28.10 |
| 2026-08-17 | 289 | $28.13 |
| 2026-08-14 | 1 | $28.13 |
| 2026-08-13 | 56 | $28.09 |
| 2026-08-12 | 261 | $28.07 |
| 2026-08-11 | 2,682 | $28.07 |
| 2026-08-10 | 3,050 | $28.12 |
| 2026-08-07 | 83 | $28.07 |
| 2026-08-06 | 5,139 | $28.07 |
| 2026-08-05 | 21,602 | $28.03 |
| 2026-08-04 | 16,430 | $27.99 |
| 2026-08-03 | 753 | $27.92 |
| 2026-07-30 | 26 | $27.87 |
| 2026-07-22 | 80 | $27.86 |
| 2026-07-17 | 32 | $27.83 |
| 2026-07-16 | 32 | $27.84 |
| 2026-07-15 | 34 | $27.84 |
| 2026-06-22 | 248 | $27.73 |
| 2025-09-08 | 2,181 | $26.48 |
| 2025-09-04 | 1,147 | $26.42 |
| 2025-08-28 | 2,958 | $26.46 |
| 2025-08-27 | 2,081 | $26.41 |
| 2025-08-26 | 2,173 | $26.40 |
| 2025-08-22 | 2,629 | $26.32 |
| 2025-08-21 | 3,986 | $26.36 |
| 2025-08-20 | 1,038 | $26.36 |
| 2025-08-19 | 236 | $26.38 |
| 2025-08-18 | 836 | $26.41 |
| 2025-08-13 | 13,489 | $26.38 |
| 2025-08-12 | 6,753 | $26.33 |
| 2025-08-11 | 1,688 | $26.34 |
| 2025-08-08 | 1,688 | $26.29 |
| 2025-08-07 | 4,361 | $26.32 |
| 2025-08-06 | 7,532 | $26.26 |
| 2025-08-05 | 75,542 | $26.28 |
| 2025-08-04 | 56,472 | $26.28 |
| 2025-08-01 | 6 | $26.20 |
| 2025-06-17 | 4 | $25.75 |
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 12811T704 links to this security's other federal filings across the hub.
Source: SEC Fails-to-Deliver Data. License: CC0 1.0.