Federal Data Hub › SEC Fails-to-Deliver · JSON
Fails-to-deliver · CUSIP 12811T779
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 52 settlement days, totaling 187,832 fail shares and peaking at 61,328 shares on 2026-02-09. Persistent or spiking fails-to-deliver can signal delivery stress, naked short selling, or operational settlement problems.
| Settlement date | Fail shares | Price |
|---|---|---|
| 2026-09-18 | 479 | $26.56 |
| 2026-09-17 | 479 | $26.48 |
| 2026-09-16 | 478 | $26.52 |
| 2026-08-28 | 917 | $26.53 |
| 2026-08-26 | 2,863 | $26.51 |
| 2026-08-25 | 3,825 | $26.50 |
| 2026-08-24 | 3,824 | $26.50 |
| 2026-08-21 | 3,824 | $26.48 |
| 2026-08-20 | 34 | $26.50 |
| 2026-08-19 | 234 | $26.50 |
| 2026-08-18 | 235 | $26.53 |
| 2026-08-17 | 877 | $26.52 |
| 2026-08-14 | 1,570 | $26.51 |
| 2026-08-13 | 1,572 | $26.47 |
| 2026-08-04 | 20 | $26.39 |
| 2026-08-03 | 18 | $26.35 |
| 2026-07-29 | 83 | $26.30 |
| 2026-07-28 | 83 | $26.28 |
| 2026-07-27 | 83 | $26.28 |
| 2026-06-04 | 46 | $26.17 |
| 2026-05-21 | 131 | $26.14 |
| 2026-05-20 | 133 | $26.10 |
| 2026-05-19 | 133 | $26.11 |
| 2026-04-07 | 57 | $25.63 |
| 2026-04-06 | 57 | $25.62 |
| 2026-04-02 | 406 | $25.61 |
| 2026-04-01 | 137 | $25.59 |
| 2026-03-31 | 1,194 | $25.47 |
| 2026-03-27 | 98 | $25.55 |
| 2026-03-26 | 500 | $25.60 |
| 2026-03-25 | 3,077 | $25.57 |
| 2026-03-24 | 5,476 | $25.60 |
| 2026-03-23 | 3,258 | $25.53 |
| 2026-03-13 | 800 | $25.62 |
| 2026-03-12 | 800 | $25.68 |
| 2026-03-11 | 800 | $25.72 |
| 2026-03-10 | 800 | $25.73 |
| 2026-03-03 | 14 | $25.77 |
| 2026-03-02 | 14 | $25.78 |
| 2026-02-27 | 1,124 | $25.77 |
| 2026-02-26 | 1,110 | $25.80 |
| 2026-02-25 | 1,193 | $25.77 |
| 2026-02-24 | 1,193 | $25.73 |
| 2026-02-23 | 83 | $25.76 |
| 2026-02-20 | 1,624 | $25.74 |
| 2026-02-19 | 790 | $25.77 |
| 2026-02-18 | 427 | $25.76 |
| 2026-02-13 | 3,007 | $25.72 |
| 2026-02-12 | 2,355 | $25.79 |
| 2026-02-11 | 2,674 | $25.80 |
| 2026-02-10 | 2,118 | $25.78 |
| 2026-02-09 | 61,328 | $25.76 |
| 2026-02-06 | 11,404 | $25.70 |
| 2026-02-05 | 12,798 | $25.74 |
| 2026-02-04 | 4,040 | $25.74 |
| 2026-02-03 | 24,589 | $25.79 |
| 2026-02-02 | 35,618 | $25.74 |
| 2026-01-30 | 268 | $25.74 |
| 2026-01-29 | 269 | $25.77 |
| 2026-01-27 | 9 | $25.72 |
| 2026-01-23 | 167 | $25.72 |
| 2026-01-21 | 386 | $25.66 |
| 2026-01-20 | 386 | $25.69 |
| 2026-01-16 | 386 | $25.67 |
| 2026-01-15 | 386 | $25.66 |
| 2025-08-27 | 1 | $24.93 |
| 2025-08-26 | 1 | $24.93 |
| 2025-06-30 | 32 | $24.56 |
| 2025-06-27 | 32 | $24.53 |
| 2025-06-04 | 46 | $24.30 |
| 2025-06-03 | 50 | $24.25 |
| 2025-06-02 | 53 | $24.24 |
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 12811T779 links to this security's other federal filings across the hub.
Source: SEC Fails-to-Deliver Data. License: CC0 1.0.