Federal Data Hub › SEC Fails-to-Deliver · JSON
Fails-to-deliver · CUSIP 12811T795
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 56 settlement days, totaling 82,658 fail shares and peaking at 15,261 shares on 2025-12-03. Persistent or spiking fails-to-deliver can signal delivery stress, naked short selling, or operational settlement problems.
| Settlement date | Fail shares | Price |
|---|---|---|
| 2026-08-26 | 38 | $27.03 |
| 2026-06-25 | 83 | $26.63 |
| 2026-06-24 | 83 | $26.64 |
| 2026-06-23 | 83 | $26.71 |
| 2026-06-22 | 83 | $26.70 |
| 2026-06-02 | 39 | $26.68 |
| 2026-06-01 | 39 | $26.68 |
| 2026-04-13 | 250 | $26.17 |
| 2026-04-10 | 250 | $26.16 |
| 2026-04-09 | 250 | $26.10 |
| 2026-04-08 | 250 | $26.00 |
| 2026-02-27 | 10 | $26.16 |
| 2026-02-26 | 10 | $26.18 |
| 2026-02-24 | 299 | $26.10 |
| 2026-02-18 | 1 | $26.11 |
| 2026-02-17 | 1 | $26.12 |
| 2026-02-13 | 1 | $26.09 |
| 2026-02-12 | 1 | $26.17 |
| 2026-02-09 | 532 | $26.15 |
| 2026-02-06 | 1,422 | $26.06 |
| 2026-02-05 | 1,522 | $26.13 |
| 2026-02-04 | 400 | $26.11 |
| 2026-02-03 | 400 | $26.15 |
| 2026-01-28 | 9 | $26.14 |
| 2026-01-27 | 9 | $26.12 |
| 2026-01-26 | 46 | $26.08 |
| 2026-01-23 | 46 | $26.08 |
| 2026-01-22 | 37 | $26.04 |
| 2026-01-21 | 37 | $26.02 |
| 2025-12-26 | 152 | $26.06 |
| 2025-12-24 | 152 | $26.01 |
| 2025-12-22 | 168 | $25.98 |
| 2025-12-19 | 228 | $25.94 |
| 2025-12-18 | 403 | $25.91 |
| 2025-12-17 | 430 | $25.95 |
| 2025-12-16 | 131 | $25.97 |
| 2025-12-15 | 500 | $25.96 |
| 2025-12-12 | 755 | $25.97 |
| 2025-12-11 | 751 | $25.98 |
| 2025-12-10 | 3,004 | $25.96 |
| 2025-12-09 | 1,003 | $25.96 |
| 2025-12-08 | 1,484 | $25.98 |
| 2025-12-05 | 1,523 | $25.95 |
| 2025-12-04 | 5,435 | $25.91 |
| 2025-12-03 | 15,261 | $25.95 |
| 2025-12-02 | 7,983 | $25.91 |
| 2025-11-06 | 3 | $25.75 |
| 2025-10-16 | 6,205 | $25.53 |
| 2025-07-09 | 159 | $24.82 |
| 2025-07-02 | 2,933 | $24.80 |
| 2025-07-01 | 2,734 | $24.81 |
| 2025-06-30 | 4,002 | $24.76 |
| 2025-06-26 | 4,086 | $24.63 |
| 2025-06-25 | 4,086 | $24.63 |
| 2025-06-24 | 4,086 | $24.54 |
| 2025-06-20 | 448 | $24.50 |
| 2025-06-18 | 448 | $24.50 |
| 2025-06-17 | 533 | $24.55 |
| 2025-06-16 | 324 | $24.47 |
| 2025-06-13 | 1,982 | $24.55 |
| 2025-06-12 | 3,282 | $24.51 |
| 2025-06-11 | 2,056 | $24.51 |
| 2025-06-04 | 145 | $24.45 |
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 12811T795 links to this security's other federal filings across the hub.
Source: SEC Fails-to-Deliver Data. License: CC0 1.0.