OmniAb (OABIW)
OmniAb on one page: short interest, daily short volume, fails to deliver and earnings dates. Listed on Nasdaq, classified by the SEC as services-commercial physical & biological research.
10K
Short interest
settlement 2026-09-30
441.1
Days to cover
+440.1 days vs prior
42.2%
Short share of volume
2026-10-02
38
Fails to deliver
settlement 2026-09-08
Tue 3 Nov
Next earnings
estimated date
As of 2026-10-02.
Short interest
FINRA, twice a month. The newest 24 settlements in the table, 48 in the chart. JSONAs of 30 September 2026, short interest in OABIW is 9,705 shares, down 935 shares over the last month. Over the last 48 readings it ranged from 7,352 shares (15 December 2025) to 21,058 shares (31 October 2024). At the reported average volume of 22 shares a day that is 441.1 days to cover.
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| Settlement | Shares short | Change | Avg daily volume | Days to cover |
|---|---|---|---|---|
| 2026-09-30 | 9,705 | +0.1% | 22 | 441.14 |
| 2026-09-15 | 9,696 | -8.9% | 10,983 | 1.00 |
| 2026-08-31 | 10,640 | -42.5% | 46,171 | 1.00 |
| 2026-08-14 | 18,488 | +98.0% | 6,868 | 2.69 |
| 2026-07-31 | 9,338 | -4.5% | 2,556 | 3.65 |
| 2026-07-15 | 9,780 | -4.7% | 69 | 141.74 |
| 2026-06-30 | 10,261 | +6.0% | 907 | 11.31 |
| 2026-06-15 | 9,681 | +1.0% | 233 | 41.55 |
| 2026-05-29 | 9,581 | -33.6% | 8,727 | 1.10 |
| 2026-05-15 | 14,433 | +59.8% | 9,550 | 1.51 |
| 2026-04-30 | 9,032 | +0.0% | 235 | 38.43 |
| 2026-04-15 | 9,032 | -48.2% | 2,139 | 4.22 |
| 2026-03-31 | 17,451 | +0.0% | 449 | 38.87 |
| 2026-03-13 | 17,450 | +0.0% | 1,207 | 14.46 |
| 2026-02-27 | 17,450 | -1.3% | 58 | 300.86 |
| 2026-02-13 | 17,670 | +0.0% | 499 | 35.41 |
| 2026-01-30 | 17,669 | +140.3% | 6,922 | 2.55 |
| 2026-01-15 | 7,352 | +0.0% | 23 | 319.65 |
| 2025-12-31 | 7,352 | +0.0% | 78 | 94.26 |
| 2025-12-15 | 7,352 | -3.6% | 3,228 | 2.28 |
| 2025-11-28 | 7,628 | +2.4% | 9,993 | 1.00 |
| 2025-11-14 | 7,452 | -22.6% | 503 | 14.82 |
| 2025-10-31 | 9,628 | +0.0% | 143 | 67.33 |
| 2025-10-15 | 9,628 | +0.0% | 68 | 141.59 |
Daily short volume
FINRA Reg SHO, the last 30 sessions. JSONAs of 2 October 2026, the short share of OABIW volume is 42.2%, up 13.7 points over the last five sessions. Over the last 30 readings it ranged from 0.1% (2 June 2026) to 100.0% (6 July 2026). The latest reading is 3.8 points below the 30-session average of 46.1%, on 5K shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-10-02 | 2K | 5K | 42.2% | 0 |
| 2026-09-29 | 2 | 12 | 16.7% | 0 |
| 2026-09-10 | 281 | 315 | 89.2% | 0 |
| 2026-09-03 | 100 | 2K | 5.7% | 0 |
| 2026-09-02 | 377 | 3K | 10.8% | 0 |
| 2026-08-27 | 2K | 7K | 28.6% | 0 |
| 2026-08-26 | 2K | 8K | 24.5% | 1,282 |
| 2026-08-24 | 3K | 7K | 36.0% | 1,535 |
| 2026-08-20 | 8K | 22K | 35.6% | 0 |
| 2026-08-19 | 12K | 19K | 66.5% | 0 |
| 2026-08-18 | 100 | 2K | 6.3% | 0 |
| 2026-08-17 | 57K | 113K | 50.2% | 228 |
| 2026-08-13 | 2K | 4K | 47.4% | 0 |
| 2026-08-11 | 13K | 13K | 98.4% | 0 |
| 2026-08-07 | 4K | 6K | 63.5% | 0 |
| 2026-07-28 | 300 | 3K | 11.0% | 0 |
| 2026-07-23 | 5 | 10 | 50.0% | 0 |
| 2026-07-22 | 1 | 1 | 100.0% | 0 |
| 2026-07-20 | 20 | 40 | 50.0% | 0 |
| 2026-07-17 | 35 | 80 | 43.8% | 0 |
| 2026-07-16 | 15 | 40 | 37.5% | 0 |
| 2026-07-09 | 20 | 20 | 100.0% | 0 |
| 2026-07-06 | 1 | 1 | 100.0% | 0 |
| 2026-06-18 | 50 | 186 | 26.9% | 0 |
| 2026-06-16 | 100 | 3K | 4.0% | 0 |
| 2026-06-02 | 1 | 1K | 0.1% | 0 |
| 2026-05-28 | 5K | 8K | 62.3% | 4,800 |
| 2026-05-20 | 500 | 2K | 27.8% | 500 |
| 2026-05-19 | 12K | 24K | 48.8% | 0 |
| 2026-05-13 | 6K | 6K | 98.2% | 0 |
Fails to deliver
SEC, the last 30 settlement dates with a fail. JSONAs of 8 September 2026, the fails-to-deliver balance in OABIW is 38 shares, unchanged over the last settlement date. Over the last 30 readings it ranged from 1 share (9 December 2025) to 3,433 shares (18 August 2026). The latest reading sits at the bottom of that range.
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-09-08 | 38 | $0.34 | $13 |
| 2026-09-04 | 38 | $0.34 | $13 |
| 2026-08-26 | 21 | $0.23 | $5 |
| 2026-08-25 | 1 | $0.23 | $0 |
| 2026-08-21 | 627 | $0.27 | $169 |
| 2026-08-20 | 2,413 | $0.18 | $434 |
| 2026-08-19 | 2,333 | $0.20 | $467 |
| 2026-08-18 | 3,433 | $0.22 | $755 |
| 2026-08-13 | 544 | $0.08 | $44 |
| 2026-08-12 | 548 | $0.08 | $44 |
| 2026-08-11 | 96 | $0.08 | $8 |
| 2026-08-10 | 141 | $0.07 | $10 |
| 2026-06-22 | 100 | $0.12 | $12 |
| 2026-06-18 | 100 | $0.11 | $11 |
| 2026-06-17 | 100 | $0.11 | $11 |
| 2026-05-20 | 1,318 | $0.11 | $145 |
| 2026-05-13 | 469 | $0.07 | $33 |
| 2026-05-12 | 469 | $0.06 | $28 |
| 2026-05-11 | 469 | $0.06 | $28 |
| 2026-03-12 | 94 | $0.09 | $8 |
| 2026-03-11 | 94 | $0.09 | $8 |
| 2026-03-10 | 94 | $0.09 | $8 |
| 2026-01-23 | 110 | $0.11 | $12 |
| 2026-01-22 | 110 | $0.11 | $12 |
| 2026-01-21 | 111 | $0.11 | $12 |
| 2025-12-15 | 101 | $0.08 | $8 |
| 2025-12-12 | 101 | $0.08 | $8 |
| 2025-12-11 | 101 | $0.10 | $10 |
| 2025-12-09 | 1 | $0.12 | $0 |
| 2025-11-21 | 102 | $0.15 | $15 |
What this page is
OmniAb in the regulatory record
Regulators publish company data in separate files that never sit next to each other: FINRA's twice-monthly short interest, its daily short sale volume, the SEC's fails-to-deliver counts, and each insider's Form 4. A company page puts those series for one ticker on one URL, with planned sales, large holders, 13F holders and financials beside them, so the short position, the daily flow, the settlement fails and what insiders are doing can be read together.
Each section has its own history table, a one-line summary of the latest figures and its own JSON and CSV links, and says when its source last updated.
This page follows OmniAb (OABIW), SEC CIK 1846253, listed on Nasdaq, classified by the SEC as services-commercial physical & biological research. The cross-market tables live on the short interest and insider transactions hubs.
Source and updates
- Short interest
- FINRA consolidated short interestSource: FINRA.Twice a month, about eight business days after settlement. Latest 2026-09-30.JSON and CSV
- Daily short volume
- FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-10-02.JSON and CSV
- Fails to deliver
- SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-09-08.JSON and CSV
- Earnings dates
- SEC EDGAR 8-K filings (Item 2.02)Source: SEC.Twice a day. Reported dates come from the company's 8-K filings; the next date is marked as an estimate until the 8-K arrives. Latest 2026-08-06.JSON and CSV
- Company record
- EDGAR filing index for CIK 1846253Ticker, name and exchange from the SEC's company list, refreshed weekly.
- Rate limits
- 10 requests a minute without a key, 30 with a free key from a free account.
How to read it
- Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
- Insider buys next to a large short position are rare and stand out; insider sells next to one are common and mean little.
- Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.
Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.
Other companies the SEC classifies as services-commercial physical & biological research
Other company pages
Datasets
Frequently Asked Questions
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Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.