ABOS
Acumen Pharmaceuticals, Inc. Common Stock
stockNASDAQ
Market OpenNov 11, 2026 1:27:12 PM EST
0.23USD-0.565%(-0.00)874,985
Pre-marketNov 11, 2026 9:19:30 AM EST
0.2306USD+0.261%(+0.0006)
On 2026-10-14 there were 0 FTDs. The average number of FTDs per day for October 2026 is 845.
ABOS Fails-to-Deliver (FTDs)
ABOS 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 |
|---|---|---|---|---|---|---|---|
| 2026-10-13 | — | -5,695 | 646.3K | 2026-10-14 | 2026-11-17 | 1.82 | 0 |
| 2026-10-12 | 5,695 | +5,695 | 291.6K | 2026-10-13 | 2026-11-16 | 2.02 | 11,504 |
| 2026-10-09 | — | 0 | 357.5K | 2026-10-12 | 2026-11-13 | 2.14 | 0 |
| 2026-10-08 | — | -920 | 505.2K | 2026-10-09 | 2026-11-12 | 2.10 | 0 |
| 2026-10-07 | 920 | +918 | 623.1K | 2026-10-08 | 2026-11-11 | 2.10 | 1,932 |
| 2026-10-06 | 2 | +2 | 562.9K | 2026-10-07 | 2026-11-10 | 2.03 | 4 |
| 2026-10-05 | — | 0 | 714.0K | 2026-10-06 | 2026-11-09 | 2.13 | 0 |
| 2026-10-02 | — | 0 | 580.5K | 2026-10-05 | 2026-11-06 | 2.04 | 0 |
| 2026-10-01 | — | -1,831 | 833.4K | 2026-10-02 | 2026-11-05 | 2.07 | 0 |
| 2026-09-30 | 1,831 | -11,516 | 1.5M | 2026-10-01 | 2026-11-04 | 2.22 | 4,065 |
| 2026-09-29 | 13,347 | +13,347 | 1.1M | 2026-09-30 | 2026-11-03 | 2.25 | 30,031 |
| 2026-09-28 | — | -6,016 | 856.4K | 2026-09-29 | 2026-11-02 | 2.30 | 0 |
| 2026-09-25 | 6,016 | +6,016 | 235.3K | 2026-09-28 | 2026-10-30 | 2.24 | 13,476 |
| 2026-09-24 | — | 0 | 265.9K | 2026-09-25 | 2026-10-29 | 2.24 | 0 |
| 2026-09-23 | — | 0 | 471.4K | 2026-09-24 | 2026-10-28 | 2.31 | 0 |
| 2026-09-22 | — | -3,538 | 568.4K | 2026-09-23 | 2026-10-27 | 2.65 | 0 |
| 2026-09-21 | 3,538 | +3,538 | 395.2K | 2026-09-22 | 2026-10-26 | 2.59 | 9,163 |
| 2026-09-18 | — | 0 | 890.2K | 2026-09-21 | 2026-10-23 | 2.65 | 0 |
| 2026-09-17 | — | 0 | 490.0K | 2026-09-18 | 2026-10-22 | 2.57 | 0 |
| 2026-09-16 | — | 0 | 369.3K | 2026-09-17 | 2026-10-21 | 2.61 | 0 |
| 2026-09-15 | — | 0 | 359.3K | 2026-09-16 | 2026-10-20 | 2.89 | 0 |
| 2026-09-14 | — | 0 | 394.2K | 2026-09-15 | 2026-10-19 | 2.79 | 0 |
| 2026-09-11 | — | 0 | 318.3K | 2026-09-14 | 2026-10-16 | 2.92 | 0 |
| 2026-09-10 | — | 0 | 467.9K | 2026-09-11 | 2026-10-15 | 2.86 | 0 |
| 2026-09-09 | — | 0 | 370.5K | 2026-09-10 | 2026-10-14 | 2.85 | 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.