CSTL
Castle Biosciences, Inc. Common Stock
stockNASDAQ
At CloseOct 2, 2026 3:59:53 PM EDT
35.58USD+0.936%(+0.33)167,719
On 2026-09-14 there were 0 FTDs. The average number of FTDs per day for September 2026 is 6.
CSTL Fails-to-Deliver (FTDs)
Fails-to-Deliver
CSTL Fails-to-Deliver
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| Trade Date (T)1 | Fails-to- Deliver2 | FTD Change | Trade Vol. | Settlement Date (T+B)4 | Closing Deadline (T+35C)5 | Price3 | $ Notional |
|---|---|---|---|---|---|---|---|
| 2026-09-11 | — | 0 | 224.2K | 2026-09-14 | 2026-10-16 | 32.33 | 0 |
| 2026-09-10 | — | 0 | 237.8K | 2026-09-11 | 2026-10-15 | 32.32 | 0 |
| 2026-09-09 | — | 0 | 194.6K | 2026-09-10 | 2026-10-14 | 32.31 | 0 |
| 2026-09-08 | — | 0 | 217.0K | 2026-09-09 | 2026-10-13 | 32.76 | 0 |
| 2026-09-04 | — | 0 | 187.7K | 2026-09-08 | 2026-10-09 | 32.91 | 0 |
| 2026-09-03 | — | 0 | 268.0K | 2026-09-04 | 2026-10-08 | 32.65 | 0 |
| 2026-09-02 | — | -57 | 200.3K | 2026-09-03 | 2026-10-07 | 33.42 | 0 |
| 2026-09-01 | 57 | +57 | 396.2K | 2026-09-02 | 2026-10-06 | 33.44 | 1,906 |
| 2026-08-31 | — | -28 | 258.0K | 2026-09-01 | 2026-10-05 | 33.03 | 0 |
| 2026-08-28 | 28 | +28 | 372.6K | 2026-08-31 | 2026-10-02 | 33.50 | 938 |
| 2026-08-27 | — | 0 | 251.2K | 2026-08-28 | 2026-10-01 | 34.26 | 0 |
| 2026-08-26 | — | 0 | 456.3K | 2026-08-27 | 2026-09-30 | 34.08 | 0 |
| 2026-08-25 | — | 0 | 483.4K | 2026-08-26 | 2026-09-29 | 35.00 | 0 |
| 2026-08-24 | — | 0 | 357.7K | 2026-08-25 | 2026-09-28 | 33.47 | 0 |
| 2026-08-21 | — | 0 | 573.5K | 2026-08-24 | 2026-09-25 | 34.20 | 0 |
| 2026-08-20 | — | -1,667 | 322.9K | 2026-08-21 | 2026-09-24 | 32.93 | 0 |
| 2026-08-19 | 1,667 | +1,667 | 451.9K | 2026-08-20 | 2026-09-23 | 32.32 | 53,877 |
| 2026-08-18 | — | 0 | 596.6K | 2026-08-19 | 2026-09-22 | 29.03 | 0 |
| 2026-08-17 | — | -23 | 225.8K | 2026-08-18 | 2026-09-21 | 29.95 | 0 |
| 2026-08-14 | 23 | +23 | 264.2K | 2026-08-17 | 2026-09-18 | 29.62 | 681 |
| 2026-08-13 | — | 0 | 362.2K | 2026-08-14 | 2026-09-17 | 30.55 | 0 |
| 2026-08-12 | — | 0 | 436.0K | 2026-08-13 | 2026-09-16 | 31.43 | 0 |
| 2026-08-11 | — | -559 | 313.5K | 2026-08-12 | 2026-09-15 | 32.24 | 0 |
| 2026-08-10 | 559 | +559 | 400.8K | 2026-08-11 | 2026-09-14 | 32.35 | 18,084 |
| 2026-08-07 | — | 0 | 241.8K | 2026-08-10 | 2026-09-11 | 32.03 | 0 |
Historical data is split-adjusted.
1 Trade Date is calculated from the Settlement Date.
2 Fails to deliver on a given day are a CUMULATIVE number of all fails outstanding until that day, plus new fails that occur that day, less fails that settle that day. A dash (—) indicates no FTDs were reported that day. It’s been shown that the SEC withholds the FTD report for two weeks, and there are often high-volume days with no reported FTDs, so it’s unclear if missing days truly indicate 0 FTDs.
3 Closing price on the Trade Date. The FTD file contains the closing price on the day previous to settlement.
4 As of May 28, 2024, the standard for settlement is next business day after a trade (T+1B). Before that, it was trade date plus two business days (T+2B).
5 RegSHO IV. 3. A broker-dealer has up to 35 calendar days following the trade date to close out the failure to deliver position by purchasing securities of like kind and quantity. Analysis of the T+35 cycle.