Federal Data Hub › SEC Fails-to-Deliver · JSON
Fails-to-deliver · CUSIP 12811T761
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 51 settlement days, totaling 113,827 fail shares and peaking at 64,557 shares on 2026-03-11. Persistent or spiking fails-to-deliver can signal delivery stress, naked short selling, or operational settlement problems.
| Settlement date | Fail shares | Price |
|---|---|---|
| 2026-08-17 | 3 | $26.09 |
| 2026-06-30 | 1 | $25.82 |
| 2026-05-20 | 60 | $25.73 |
| 2026-05-19 | 260 | $25.74 |
| 2026-05-05 | 51 | $25.66 |
| 2026-04-27 | 2 | $25.64 |
| 2026-04-24 | 1 | $25.61 |
| 2026-04-23 | 1 | $25.62 |
| 2026-04-21 | 505 | $25.61 |
| 2026-04-20 | 355 | $25.62 |
| 2026-04-17 | 398 | $25.58 |
| 2026-04-15 | 500 | $25.54 |
| 2026-04-14 | 1,000 | $25.49 |
| 2026-04-13 | 1,137 | $25.46 |
| 2026-04-10 | 37 | $25.45 |
| 2026-04-09 | 1,323 | $25.44 |
| 2026-04-08 | 1,522 | $25.33 |
| 2026-04-07 | 3,566 | $25.34 |
| 2026-04-06 | 2,825 | $25.33 |
| 2026-04-01 | 739 | $25.27 |
| 2026-03-31 | 1,133 | $25.20 |
| 2026-03-30 | 6,982 | $25.20 |
| 2026-03-25 | 985 | $25.24 |
| 2026-03-24 | 466 | $25.28 |
| 2026-03-23 | 566 | $25.25 |
| 2026-03-20 | 13 | $25.31 |
| 2026-03-19 | 78 | $25.33 |
| 2026-03-18 | 378 | $25.40 |
| 2026-03-17 | 1,592 | $25.36 |
| 2026-03-16 | 429 | $25.32 |
| 2026-03-13 | 2,760 | $25.33 |
| 2026-03-12 | 12,066 | $25.39 |
| 2026-03-11 | 64,557 | $25.44 |
| 2026-03-10 | 1,822 | $25.40 |
| 2026-03-09 | 94 | $25.39 |
| 2026-03-06 | 338 | $25.40 |
| 2026-03-05 | 2,005 | $25.45 |
| 2026-03-04 | 1,389 | $25.43 |
| 2026-03-03 | 1,227 | $25.46 |
| 2026-02-04 | 1 | $25.33 |
| 2026-01-30 | 40 | $25.32 |
| 2026-01-29 | 130 | $25.32 |
| 2026-01-23 | 70 | $25.30 |
| 2026-01-07 | 173 | $25.24 |
| 2025-11-24 | 1 | $24.86 |
| 2025-11-18 | 1 | $24.87 |
| 2025-11-17 | 1 | $24.90 |
| 2025-11-03 | 1 | $24.93 |
| 2025-09-30 | 1 | $24.81 |
| 2025-09-29 | 1 | $24.80 |
| 2025-07-14 | 81 | $24.35 |
| 2025-07-11 | 82 | $24.35 |
| 2025-07-10 | 82 | $24.35 |
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 12811T761 links to this security's other federal filings across the hub.
Source: SEC Fails-to-Deliver Data. License: CC0 1.0.