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IB Acquisition (IBAC)

IB Acquisition on one page: short interest, daily short volume, fails to deliver, large holders and insider trades. Listed on Nasdaq, classified by the SEC as services-commercial physical & biological research.

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2K

Short interest

settlement 2026-09-30

1.0

Days to cover

unchanged vs prior

100.0%

Short share of volume

2026-10-09

1

Fails to deliver

settlement 2026-09-14

$0

Insider flow, 90 days

0 buys, 0 sells

As of 2026-10-09.

Short interest

FINRA, twice a month. The newest 24 settlements in the table, 48 in the chart. JSON

As of 30 September 2026, short interest in IBAC is 2,339 shares, up 1,815 shares over the last month. Over the last 48 readings it ranged from 203 shares (31 October 2025) to 10,475 shares (31 October 2024). At the reported average volume of 5K shares a day that is 1.0 days to cover.

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SettlementShares shortChangeAvg daily volumeDays to cover
2026-09-302,339+449.1%4,5151.00
2026-09-15426-18.7%1,3651.00
2026-08-31524+3.0%4401.19
2026-08-14509+0.8%7071.00
2026-07-31505-86.8%4631.09
2026-07-153,836-24.3%1,7492.19
2026-06-305,064-10.4%2,5012.02
2026-06-155,649-13.7%8,6831.00
2026-05-296,548+22.5%3,6831.78
2026-05-155,344+132.2%7,5531.00
2026-04-302,302-21.9%1,0152.27
2026-04-152,949+18.6%2,9511.00
2026-03-312,486-28.1%43,7161.00
2026-03-133,460-6.9%4,2841.00
2026-02-273,718-25.8%2,9161.28
2026-02-135,008+569.5%6,1811.00
2026-01-30748+178.1%2,4231.00
2026-01-15269-64.6%8,0281.00
2025-12-31760+12.4%2,2001.00
2025-12-15676+192.6%8611.00
2025-11-28231-29.1%4,8401.00
2025-11-14326+60.6%6,9921.00
2025-10-31203-27.5%2,7001.00
2025-10-15280-42.0%48,0081.00

Daily short volume

FINRA Reg SHO, the last 30 sessions. JSON

As of 9 October 2026, the short share of IBAC volume is 100.0%, up 49.9 points over the last five sessions. Over the last 30 readings it ranged from 1.9% (22 September 2026) to 100.0% (25 August 2026). The latest reading sits at the top of that range. The latest reading is 39.1 points above the 30-session average of 60.9%, on 3 shares reported.

DateShort volumeTotal volumeShort shareExempt
2026-10-0933100.0%0
2026-10-081616100.0%0
2026-10-073560.0%0
2026-10-054666.7%0
2026-10-021961K19.5%0
2026-10-0130160150.1%0
2026-09-306624K15.7%0
2026-09-283650.0%0
2026-09-253833.6%0
2026-09-241032K4.7%0
2026-09-2322100.0%0
2026-09-2252601.9%0
2026-09-211031K8.7%0
2026-09-182K4K39.6%0
2026-09-172K3K77.4%0
2026-09-163K4K73.6%0
2026-09-153K4K93.3%0
2026-09-14468653.5%0
2026-09-1166100.0%0
2026-09-1077100.0%0
2026-09-09507507100.0%0
2026-09-08838838100.0%0
2026-09-041K1K90.9%0
2026-09-034343100.0%0
2026-09-0132992935.4%0
2026-08-3133100.0%0
2026-08-281816810.7%0
2026-08-273315920.8%0
2026-08-2566100.0%0
2026-08-203650.0%0

Fails to deliver

SEC, the last 30 settlement dates with a fail. JSON

As of 14 September 2026, the fails-to-deliver balance in IBAC is 1 share, down 71 shares over the last settlement date. Over the last 30 readings it ranged from 1 share (30 June 2026) to 1,009 shares (2 June 2026). The latest reading sits at the bottom of that range.

SettlementShares failedPriceValue
2026-09-141$10.92$11
2026-09-0972$10.91$786
2026-09-0872$10.83$780
2026-08-1820$10.83$217
2026-08-178$10.85$87
2026-08-0744$10.81$476
2026-08-0672$10.81$778
2026-08-05100$10.82$1K
2026-08-04100$10.82$1K
2026-07-3091$10.80$983
2026-07-231$10.79$11
2026-07-175$10.79$54
2026-07-1621$10.79$227
2026-07-1521$10.79$227
2026-07-1337$10.79$399
2026-07-0143$10.71$461
2026-06-301$10.78$11
2026-06-2923$10.78$248
2026-06-2620$10.79$216
2026-06-1583$10.78$895
2026-06-114$10.80$43
2026-06-10169$10.70$2K
2026-06-055$10.70$54
2026-06-0399$10.73$1K
2026-06-021,009$10.79$11K
2026-05-292$10.73$21
2026-05-27136$10.73$1K
2026-05-2617$10.79$183
2026-05-22268$10.79$3K
2026-05-21834$10.76$9K

Insider trades

SEC Form 4, newest first, 50 of 99 shown. JSON

No open-market insider trades were reported for IBAC in the last 90 days. The most recent filings are listed below. Latest filing: AQR Arbitrage LLC (TenPercentOwner) on 2026-03-23.

DateInsiderTitleTypeSharesPriceValueOwned after
2026-03-23AQR Arbitrage LLCTenPercentOwnerSell10K$10.80$112K11K
2026-03-23AQR Arbitrage LLCTenPercentOwnerSell26K$10.80$285K28K
2026-03-23AQR Arbitrage LLCTenPercentOwnerSell1K$10.80$11K1K
2026-03-23AQR Arbitrage LLCTenPercentOwnerSell30K$10.80$323K31K
2026-03-23AQR Arbitrage LLCTenPercentOwnerSell138K$10.80$1.5M144K
2026-03-23AQR Arbitrage LLCTenPercentOwnerSell25K$10.80$271K26K
2026-03-23AQR Arbitrage LLCTenPercentOwnerSell2K$10.80$18K2K
2026-03-23AQR Arbitrage LLCTenPercentOwnerSell56K$10.80$606K58K
2026-03-23AQR Arbitrage LLCTenPercentOwnerSell40K$10.80$434K42K
2026-03-23AQR Arbitrage LLCTenPercentOwnerSell6K$10.80$68K7K
2026-03-23AQR Capital Management Holdings, LLC10% ownerSell1K$10.80$11K1K
2026-03-23AQR Capital Management Holdings, LLC10% ownerSell2K$10.80$18K2K
2026-03-23AQR Capital Management Holdings, LLC10% ownerSell6K$10.80$68K7K
2026-03-23AQR Capital Management Holdings, LLC10% ownerSell10K$10.80$112K11K
2026-03-23AQR Capital Management Holdings, LLC10% ownerSell25K$10.80$271K26K
2026-03-23AQR Capital Management Holdings, LLC10% ownerSell26K$10.80$285K28K
2026-03-23AQR Capital Management Holdings, LLC10% ownerSell30K$10.80$323K31K
2026-03-23AQR Capital Management Holdings, LLC10% ownerSell40K$10.80$434K42K
2026-03-23AQR Capital Management Holdings, LLC10% ownerSell56K$10.80$606K58K
2026-03-23AQR Capital Management Holdings, LLC10% ownerSell138K$10.80$1.5M144K
2026-03-20AQR CAPITAL MANAGEMENT LLCTenPercentOwnerSell5K$10.75$50K0
2026-03-20AQR Capital Management Holdings, LLC10% ownerSell5K$10.75$50K0
2025-10-09AQR Arbitrage LLCTenPercentOwnerSell4K$10.44$38K13K
2025-10-09AQR Arbitrage LLCTenPercentOwnerSell17K$10.44$181K61K
2025-10-09AQR Arbitrage LLCTenPercentOwnerSell15K$10.44$160K54K
2025-10-09AQR Arbitrage LLCTenPercentOwnerSell15K$10.44$152K51K
2025-10-09AQR Arbitrage LLCTenPercentOwnerSell6K$10.44$63K21K
2025-10-09AQR Arbitrage LLCTenPercentOwnerSell23K$10.44$243K82K
2025-10-09AQR Arbitrage LLCTenPercentOwnerSell1K$10.44$14K5K
2025-10-09AQR Arbitrage LLCTenPercentOwnerSell943$10.44$10K3K
2025-10-09AQR Arbitrage LLCTenPercentOwnerSell615$10.44$6K2K
2025-10-09AQR Arbitrage LLCTenPercentOwnerSell80K$10.44$836K282K
2025-10-09AQR Arbitrage LLCTenPercentOwnerSell33K$10.44$340K115K
2025-10-09AQR Capital Management Holdings, LLC10% ownerSell615$10.44$6K2K
2025-10-09AQR Capital Management Holdings, LLC10% ownerSell943$10.44$10K3K
2025-10-09AQR Capital Management Holdings, LLC10% ownerSell1K$10.44$14K5K
2025-10-09AQR Capital Management Holdings, LLC10% ownerSell4K$10.44$38K13K
2025-10-09AQR Capital Management Holdings, LLC10% ownerSell6K$10.44$63K21K
2025-10-09AQR Capital Management Holdings, LLC10% ownerSell15K$10.44$152K51K
2025-10-09AQR Capital Management Holdings, LLC10% ownerSell15K$10.44$160K54K
2025-10-09AQR Capital Management Holdings, LLC10% ownerSell17K$10.44$181K61K
2025-10-09AQR Capital Management Holdings, LLC10% ownerSell23K$10.44$243K82K
2025-10-09AQR Capital Management Holdings, LLC10% ownerSell33K$10.44$340K115K
2025-10-09AQR Capital Management Holdings, LLC10% ownerSell80K$10.44$836K282K
2025-10-02AQR Arbitrage LLCTenPercentOwnerSell327$10.50$3K66K
2025-10-02AQR Arbitrage LLCTenPercentOwnerSell21$10.50$2214K
2025-10-02AQR Arbitrage LLCTenPercentOwnerSell30$10.50$3156K
2025-10-02AQR Arbitrage LLCTenPercentOwnerSell82$10.50$86116K
2025-10-02AQR Arbitrage LLCTenPercentOwnerSell135$10.50$1K27K
2025-10-02AQR Arbitrage LLCTenPercentOwnerSell14$10.50$1473K

Form 4 filings are due within two business days of the trade. Insiders sell for many reasons that say nothing about the company; open-market buys are rarer.

Large holders (13D and 13G)

One row per reporting person with its latest filing, newest first. JSON

No holder on file reports 5% or more of IBAC in its latest filing.

FiledFormHolderSharesOf classEvent
2026-04-0813G/Ano. 3AQR Capital Management Holdings, LLCparent holding company00.0%2026-03-31
2026-04-0813G/Ano. 3AQR Arbitrage, LLCinvestment adviser00.0%2026-03-31
2026-04-0813G/Ano. 3AQR Capital Management, LLCinvestment adviser00.0%2026-03-31
2026-02-1213G/Ano. 1BANK OF MONTREAL HOLDING INC.bank00.0%2025-12-31
2026-02-1213G/Ano. 1BMO NESBITT BURNS INC.broker-dealer00.0%2025-12-31
2026-02-1213G/Ano. 1Bank of Montrealparent holding company00.0%2025-12-31
2026-02-1113G/Ano. 1Barclays PLCparent holding company20K0.3%2025-12-31
2025-11-1413G/Ano. 1TD Group US Holdings LLCparent holding company00.0%2025-09-30
2025-11-1413G/Ano. 1TD SECURITIES (USA) LLCbroker-dealer00.0%2025-09-30
2025-11-1413G/Ano. 1Toronto Dominion Holdings USA Inc.parent holding company00.0%2025-09-30
2025-11-1413G/Ano. 1Toronto Dominion Banknon-US institution00.0%2025-09-30
2025-11-0713G/Ano. 1KARPUS MANAGEMENT, INC.investment adviser00.0%2025-10-31
2025-10-1413G/Ano. 1Wealthspring Capital LLCinvestment adviser, partnership00.0%2025-09-30
2025-10-1413G/Ano. 1Matthew Simsponinvestment adviser, parent holding company, partnership00.0%2025-09-30

What this page is

IB Acquisition 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 IB Acquisition (IBAC), SEC CIK 1998781, 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 2026-10-09.JSON and CSV
Fails to deliver
SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-09-14.JSON and CSV
Large holders
SEC EDGAR Schedule 13D and 13GSource: SEC.New filings appear shortly after the SEC posts them. A 13D is due within five business days of crossing 5%; a 13G follows the passive schedule. Latest 2026-04-08.JSON and CSV
Insider trades
SEC EDGAR Form 4Source: SEC.New filings appear shortly after the SEC posts them; they're due two business days after the trade. Latest 2026-03-23.JSON and CSV
Company record
EDGAR filing index for CIK 1998781Ticker, 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

How much of IBAC is sold short?
2,339 shares were held short at the 2026-09-30 settlement, 1.0 days of average volume. FINRA publishes the next count about eight business days after the 15th and the last business day of the month.
What is IBAC's daily short volume?
On 2026-10-09, 3 of the 3 IBAC shares reported to FINRA were sold short, 100.0% of the day's reported volume. Short volume is a flow for one day, not a position.
Does IBAC have fails to deliver?
The SEC's latest file shows 1 IBAC shares failed to deliver at settlement 2026-09-14. Fails are reported per settlement date and published twice a month with a lag.
Are IBAC insiders buying or selling?
No open-market insider trades were reported for IBAC in the last 90 days. The most recent filings are listed below. Latest filing: AQR Arbitrage LLC (TenPercentOwner) on 2026-03-23.
Who owns 5% or more of IBAC?
No holder on file reports 5% or more of IBAC in its latest filing.

Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.