Interactive Brokers Group (IBKR)

Interactive Brokers Group on one page: short interest, daily short volume, fails to deliver, planned sales, large holders, 13F holders, financials, earnings dates and insider trades. Listed on Nasdaq, classified by the SEC as security brokers, dealers & flotation companies.

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13.1M

Short interest

settlement 2026-10-15

3.5

Days to cover

-0.1 days vs prior

31.7%

Short share of volume

2026-10-28

Fails to deliver

settlement 2026-09-30

Tue 19 Jan

Next earnings

estimated date

$7K

Insider flow, 90 days

3 buys, 0 sells

As of 2026-10-28.

Short interest

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

As of 15 October 2026, short interest in IBKR is 13,050,620 shares, up 653,625 shares over the last month. Over the last 48 readings it ranged from 1,506,923 shares (31 October 2024) to 17,058,765 shares (29 August 2025). At the reported average volume of 3.8M shares a day that is 3.5 days to cover.

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Settlement	Shares short	Change	Avg daily volume	Days to cover
2026-10-15	13,050,620	-4.8%	3,786,251	3.45
2026-09-30	13,713,846	+10.6%	3,874,809	3.54
2026-09-15	12,396,995	+20.4%	3,563,807	3.48
2026-08-31	10,298,397	+27.2%	3,862,556	2.67
2026-08-14	8,095,922	-12.5%	4,569,236	1.77
2026-07-31	9,250,070	+0.8%	4,693,159	1.97
2026-07-15	9,176,448	-19.4%	4,118,365	2.23
2026-06-30	11,389,018	-19.6%	4,920,499	2.31
2026-06-15	14,174,552	+6.3%	4,907,909	2.89
2026-05-29	13,334,420	+16.4%	6,342,846	2.10
2026-05-15	11,457,034	+5.7%	3,941,749	2.91
2026-04-30	10,841,436	+4.5%	4,788,506	2.26
2026-04-15	10,375,245	+1.4%	4,361,306	2.38
2026-03-31	10,231,595	-15.3%	5,143,916	1.99
2026-03-13	12,075,322	-9.8%	4,673,924	2.58
2026-02-27	13,380,906	+17.5%	3,680,547	3.64
2026-02-13	11,390,874	+12.1%	5,750,523	1.98
2026-01-30	10,159,672	-9.9%	6,044,350	1.68
2026-01-15	11,270,557	-11.9%	4,475,062	2.52
2025-12-31	12,787,443	+3.9%	2,885,389	4.43
2025-12-15	12,309,986	+12.3%	3,866,393	3.18
2025-11-28	10,965,805	+13.0%	4,257,099	2.58
2025-11-14	9,704,283	-1.7%	4,387,131	2.21
2025-10-31	9,873,122	-1.6%	5,155,722	1.91
2025-10-15	10,030,080	-15.1%	4,345,634	2.31
2025-09-30	11,808,810	+0.6%	4,995,139	2.36
2025-09-15	11,742,089	-31.2%	5,508,067	2.13
2025-08-29	17,058,765	+71.0%	14,970,144	1.14
2025-08-15	9,972,914	+3.8%	4,262,809	2.34
2025-07-31	9,609,625	+0.3%	6,319,316	1.52
2025-07-15	9,578,896	+0.1%	5,259,692	1.82
2025-06-30	9,569,605	+201.1%	5,493,131	1.74
2025-06-13	3,178,742	+12.9%	1,213,406	2.62
2025-05-30	2,816,162	+13.4%	1,151,144	2.45
2025-05-15	2,482,431	+16.8%	1,289,864	1.92
2025-04-30	2,125,413	+12.3%	2,015,852	1.05
2025-04-15	1,892,484	-6.5%	2,815,348	1.00
2025-03-31	2,025,075	-24.8%	2,140,757	1.00
2025-03-14	2,691,341	-13.0%	2,868,038	1.00
2025-02-28	3,092,214	+26.8%	2,526,893	1.22
2025-02-14	2,438,108	+3.4%	1,884,374	1.29
2025-01-31	2,358,880	+29.4%	2,061,173	1.14
2025-01-15	1,823,356	+10.0%	1,187,679	1.54
2024-12-31	1,657,747	-17.2%	919,426	1.80
2024-12-13	2,001,580	-14.2%	1,206,861	1.66
2024-11-29	2,331,558	+27.9%	1,092,841	2.13
2024-11-15	1,822,410	+20.9%	1,119,219	1.63
2024-10-31	1,506,923	+8.9%	916,070	1.64

Daily short volume

FINRA Reg SHO, the last 30 sessions. JSON

As of 28 October 2026, the short share of IBKR volume is 31.7%, down 5.7 points over the last five sessions. Over the last 30 readings it ranged from 17.8% (23 October 2026) to 59.6% (2 October 2026). The latest reading is 9.8 points below the 30-session average of 41.5%, on 1.8M shares reported.

Date	Short volume	Total volume	Short share	Exempt
2026-10-28	581K	1.8M	31.7%	89
2026-10-27	540K	1.9M	27.8%	29
2026-10-26	445K	2.5M	18.1%	1,840
2026-10-23	410K	2.3M	17.8%	1,936
2026-10-22	571K	1.6M	36.8%	0
2026-10-21	565K	1.5M	37.5%	1,004
2026-10-20	405K	1.4M	28.9%	5
2026-10-19	557K	1.8M	31.7%	0
2026-10-16	1.3M	3.1M	42.1%	110
2026-10-15	762K	2.5M	30.9%	1,137
2026-10-14	668K	1.8M	38.0%	640
2026-10-13	341K	1.2M	29.3%	2,052
2026-10-12	668K	1.3M	52.2%	447
2026-10-09	406K	943K	43.0%	586
2026-10-08	558K	1.3M	44.2%	333
2026-10-07	785K	1.4M	54.3%	2,483
2026-10-06	626K	1.3M	49.4%	903
2026-10-05	448K	1.0M	44.2%	640
2026-10-02	1.1M	1.8M	59.6%	425
2026-10-01	899K	2.2M	41.1%	1,051
2026-09-30	646K	1.3M	49.1%	833
2026-09-29	481K	971K	49.6%	274
2026-09-28	547K	1.1M	49.4%	252
2026-09-25	427K	1.1M	39.2%	0
2026-09-24	469K	1.3M	37.5%	17
2026-09-23	510K	1.1M	44.8%	0
2026-09-22	835K	1.5M	55.9%	3,586
2026-09-21	685K	1.2M	58.6%	945
2026-09-18	700K	1.2M	59.4%	596
2026-09-17	634K	1.5M	43.5%	2

Fails to deliver

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

As of 30 September 2026, the fails-to-deliver balance in IBKR is 15 shares, down 14,589 shares over the last settlement date. Over the last 30 readings it ranged from 1 share (25 August 2026) to 21,884 shares (8 July 2026). The latest reading sits at the bottom of that range.

Settlement	Shares failed	Price	Value
2026-09-30	15	$86.18	$1K
2026-09-21	14,604	$90.69	$1.3M
2026-09-18	15,581	$88.38	$1.4M
2026-09-15	195	$90.75	$18K
2026-09-10	1,214	$90.28	$110K
2026-09-08	34	$92.62	$3K
2026-09-04	1,068	$92.95	$99K
2026-09-01	476	$97.29	$46K
2026-08-31	1,482	$95.84	$142K
2026-08-28	2,892	$96.55	$279K
2026-08-27	2,587	$97.02	$251K
2026-08-25	1	$93.05	$93
2026-08-24	1,200	$93.87	$113K
2026-08-19	1,045	$90.56	$95K
2026-08-17	4,791	$92.06	$441K
2026-08-14	276	$91.42	$25K
2026-08-13	555	$91.66	$51K
2026-08-10	619	$87.83	$54K
2026-08-06	36	$88.74	$3K
2026-08-04	13,390	$87.75	$1.2M
2026-07-31	2,116	$90.48	$191K
2026-07-29	5,555	$90.91	$505K
2026-07-24	376	$91.76	$35K
2026-07-22	784	$94.42	$74K
2026-07-17	1,223	$92.21	$113K
2026-07-16	1,831	$97.41	$178K
2026-07-08	21,884	$94.57	$2.1M
2026-07-06	544	$91.33	$50K
2026-07-02	728	$93.25	$68K
2026-06-30	9,750	$88.20	$860K

Insider trades

SEC Form 4, newest first. JSON

Insiders at IBKR reported 3 open-market buys worth $7K in the last 90 days and no open-market sells. Latest filing: Conkling Lori A (Director) on 2026-10-01.

Date	Insider	Title	Type	Shares	Price	Value	Owned after
2026-10-01	Conkling Lori A	Director	Buy	25	$85.42	$2K	3K
2026-09-01	Conkling Lori A	Director	Buy	25	$94.53	$2K	3K
2026-08-03	Conkling Lori A	Director	Buy	25	$87.03	$2K	3K
2026-07-31	Nemser Earl H	Vice Chairman	Grant	804K	$87.99	$70.7M	804K
2026-07-01	Conkling Lori A	Director	Buy	25	$88.03	$2K	3K
2026-06-01	Conkling Lori A	Director	Buy	25	$86.10	$2K	2K
2026-05-08	Mendonca Denis	Chief Accounting Officer	Tax withholding	11K	$84.42	$942K	145K
2026-05-08	Nemser Earl H	Vice Chairman	Tax withholding	22K	$84.42	$1.9M	429K
2026-05-08	Galik Milan	Chief Executive Officer	Tax withholding	255K	$84.42	$21.5M	3.2M
2026-05-08	Frank Thomas AJ	Executive Vice President	Tax withholding	32K	$84.42	$2.7M	252K
2026-05-08	Brody Paul Jonathan	Chief Financial Officer	Tax withholding	83K	$84.42	$7.0M	2.9M
2026-05-01	Conkling Lori A	Director	Buy	25	$79.64	$2K	2K
2026-04-28	Harris Lawrence E	Director	Sell	26K	$76.93	$2.0M	173K
2026-04-01	Conkling Lori A	Director	Buy	25	$68.38	$2K	2K
2026-03-02	Conkling Lori A	Director	Buy	25	$69.21	$2K	2K
2026-02-25	Conkling Lori A	Director	Buy	50	$73.21	$4K	2K
2026-01-27	Nemser Earl H	Vice Chairman	Sell	20K	$75.75	$1.6M	0
2026-01-27	Nemser Earl H	Vice Chairman	Sell	40K	$75.07	$3.0M	20K
2026-01-26	Nemser Earl H	Vice Chairman	Sell	3K	$77.98	$242K	60K
2026-01-26	Nemser Earl H	Vice Chairman	Sell	31K	$76.72	$2.4M	63K
2026-01-26	Nemser Earl H	Vice Chairman	Sell	61K	$75.83	$4.6M	94K
2026-01-23	Nemser Earl H	Vice Chairman	Sell	60K	$78.14	$4.7M	155K
2026-01-23	Nemser Earl H	Vice Chairman	Sell	85K	$77.65	$6.6M	215K
2026-01-22	Nemser Earl H	Vice Chairman	Sell	100K	$76.81	$7.7M	300K
2026-01-01	Peterffy William	Director	Grant	389	$64.31	$25K	10K
2026-01-01	Nemser Earl H	Vice Chairman	Grant	389	$64.31	$25K	452K
2026-01-01	Yuen Nicole	Director	Grant	389	$64.31	$25K	10K
2026-01-01	Repetto Richard H	Director	Grant	389	$64.31	$25K	3K
2026-01-01	Harris Lawrence E	Director	Grant	389	$64.31	$25K	199K
2026-01-01	Galik Milan	Chief Executive Officer	Grant	389	$64.31	$25K	3.5M
2026-01-01	Conkling Lori A	Director	Grant	389	$64.31	$25K	2K
2026-01-01	Brody Paul Jonathan	Chief Financial Officer	Grant	389	$64.31	$25K	2.9M
2026-01-01	Bright Jill	Director	Grant	389	$64.31	$25K	11K
2025-12-31	Repetto Richard H	Director	Grant	389	$64.31	$25K	3K
2025-12-31	Nemser Earl H	Vice Chairman	Grant	389	$64.31	$25K	451K
2025-12-31	Nemser Earl H	Vice Chairman	Grant	23K	$0.00	$0	451K
2025-12-31	Mendonca Denis	Chief Accounting Officer	Grant	11K	$0.00	$0	156K
2025-12-31	Yuen Nicole	Director	Grant	389	$64.31	$25K	10K
2025-12-31	Peterffy William	Director	Grant	389	$64.31	$25K	10K
2025-12-31	Harris Lawrence E	Director	Grant	389	$64.31	$25K	199K
2025-12-31	Galik Milan	Chief Executive Officer	Grant	389	$64.31	$25K	3.5M
2025-12-31	Galik Milan	Chief Executive Officer	Grant	225K	$0.00	$0	3.5M
2025-12-31	Frank Thomas AJ	Executive Vice President	Grant	14K	$0.00	$0	283K
2025-12-31	Conkling Lori A	Director	Grant	389	$64.31	$25K	2K
2025-12-31	Conkling Lori A	Director	Grant	1K	$0.00	$0	1K
2025-12-31	Brody Paul Jonathan	Chief Financial Officer	Grant	389	$64.31	$25K	2.9M
2025-12-31	Brody Paul Jonathan	Chief Financial Officer	Grant	53K	$0.00	$0	2.9M
2025-12-31	Bright Jill	Director	Grant	389	$64.31	$25K	11K
2025-12-31	Conkling Lori A	Director	Grant	389	$0.00	$0	2K
2025-12-29	Galik Milan	Chief Executive Officer	Other transaction	896K	$0.00	$0	0
2025-10-29	Harris Lawrence E	Director	Sell	11K	$69.00	$735K	199K
2025-10-28	Harris Lawrence E	Director	Sell	7K	$69.15	$474K	209K
2025-10-27	Harris Lawrence E	Director	Sell	8K	$69.73	$523K	216K
2025-10-24	Harris Lawrence E	Director	Sell	8K	$68.50	$548K	224K
2025-10-23	Harris Lawrence E	Director	Sell	22K	$67.63	$1.5M	232K
2025-10-23	Bright Jill	Director	Buy	400	$65.95	$26K	10K
2025-09-30	Brody Paul Jonathan	Chief Financial Officer	Sell	1K	$70.00	$81K	7K
2025-09-30	Brody Paul Jonathan	Chief Financial Officer	Sell	2K	$69.30	$137K	8K
2025-09-29	Brody Paul Jonathan	Chief Financial Officer	Sell	2K	$68.70	$139K	10K
2025-09-29	Brody Paul Jonathan	Chief Financial Officer	Sell	9K	$68.27	$600K	12K
2025-09-29	Brody Paul Jonathan	Chief Financial Officer	Sell	7K	$67.16	$498K	21K
2025-09-26	Brody Paul Jonathan	Chief Financial Officer	Sell	2K	$66.15	$105K	28K
2025-09-26	Brody Paul Jonathan	Chief Financial Officer	Sell	15K	$65.74	$1.0M	30K
2025-09-25	Brody Paul Jonathan	Chief Financial Officer	Sell	4K	$65.19	$277K	45K
2025-09-25	Brody Paul Jonathan	Chief Financial Officer	Sell	9K	$64.76	$574K	50K
2025-09-25	Brody Paul Jonathan	Chief Financial Officer	Sell	1K	$63.81	$75K	58K
2025-09-24	Brody Paul Jonathan	Chief Financial Officer	Sell	927	$65.54	$61K	60K
2025-09-24	Brody Paul Jonathan	Chief Financial Officer	Sell	13K	$64.76	$872K	61K
2025-09-23	Brody Paul Jonathan	Chief Financial Officer	Sell	13K	$65.49	$838K	74K
2025-09-23	Brody Paul Jonathan	Chief Financial Officer	Sell	6K	$64.90	$404K	87K
2025-09-22	Brody Paul Jonathan	Chief Financial Officer	Sell	563	$64.61	$36K	93K
2025-09-22	Brody Paul Jonathan	Chief Financial Officer	Sell	15K	$63.94	$936K	94K
2025-09-19	Brody Paul Jonathan	Chief Financial Officer	Sell	7K	$64.66	$448K	101K
2025-09-19	Brody Paul Jonathan	Chief Financial Officer	Sell	140	$65.19	$9K	108K
2025-09-19	Brody Paul Jonathan	Chief Financial Officer	Sell	51K	$64.61	$3.3M	108K
2025-09-18	Brody Paul Jonathan	Chief Financial Officer	Sell	71K	$65.05	$4.6M	159K
2025-09-18	Brody Paul Jonathan	Chief Financial Officer	Sell	38K	$64.40	$2.4M	230K
2025-09-18	Brody Paul Jonathan	Chief Financial Officer	Sell	8K	$63.43	$503K	268K
2025-09-17	Brody Paul Jonathan	Chief Financial Officer	Sell	45K	$62.48	$2.8M	276K
2025-09-17	Brody Paul Jonathan	Chief Financial Officer	Sell	62K	$62.06	$3.8M	321K
2025-09-16	Brody Paul Jonathan	Chief Financial Officer	Sell	587	$62.62	$37K	382K
2025-09-16	Brody Paul Jonathan	Chief Financial Officer	Sell	99K	$62.24	$6.1M	383K
2025-09-15	Brody Paul Jonathan	Chief Financial Officer	Sell	1K	$64.26	$96K	482K
2025-09-15	Brody Paul Jonathan	Chief Financial Officer	Sell	38K	$63.79	$2.4M	483K
2025-09-15	Brody Paul Jonathan	Chief Financial Officer	Sell	57K	$62.66	$3.6M	521K
2025-09-12	Brody Paul Jonathan	Chief Financial Officer	Sell	62K	$64.19	$4.0M	578K
2025-09-12	Brody Paul Jonathan	Chief Financial Officer	Sell	36K	$63.84	$2.3M	639K
2025-09-11	Brody Paul Jonathan	Chief Financial Officer	Sell	55K	$63.54	$3.5M	675K
2025-09-11	Brody Paul Jonathan	Chief Financial Officer	Sell	58K	$62.94	$3.6M	730K
2025-09-10	Brody Paul Jonathan	Chief Financial Officer	Sell	105K	$62.51	$6.6M	788K
2025-09-09	Brody Paul Jonathan	Chief Financial Officer	Sell	85K	$62.02	$5.3M	893K
2025-09-09	Brody Paul Jonathan	Chief Financial Officer	Sell	23K	$61.30	$1.4M	977K
2025-08-14	Nemser Earl H	Vice Chairman	Sell	21K	$64.22	$1.3M	400K
2025-08-14	Nemser Earl H	Vice Chairman	Sell	33K	$63.86	$2.1M	421K
2025-08-13	Nemser Earl H	Vice Chairman	Sell	200	$67.20	$13K	454K
2025-08-13	Nemser Earl H	Vice Chairman	Sell	200	$66.09	$13K	457K
2025-08-13	Nemser Earl H	Vice Chairman	Sell	2K	$66.77	$160K	454K
2025-08-13	Nemser Earl H	Vice Chairman	Sell	200	$64.19	$13K	457K
2025-08-13	Nemser Earl H	Vice Chairman	Sell	5K	$63.75	$293K	457K
2025-08-12	Nemser Earl H	Vice Chairman	Sell	41K	$67.88	$2.8M	462K

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.

Planned sales (Form 144)

Newest first. JSON

3 Form 144 notices on file for IBKR worth $37.2M at the prices reported; 0 in the last 90 days worth $0. Latest: Harris Lawrence E filed on 2026-04-28 to sell 26,000 shares ($2.0M) from 2026-04-28.

Filed	Seller	Shares	Market value	Of outstanding	Sale from	Broker
2026-04-28	Harris Lawrence EDirector	26K	$2.0M	0.006%	2026-04-28	Interactive Brokers LLC
2026-01-22	Nemser Earl HOfficer, Director	400K	$30.3M	0.090%	2026-01-22	Interactive Brokers LLC
2025-10-23	Harris Lawrence EDirector	75K	$4.9M	0.017%	2025-10-23	Interactive Brokers LLC

Large holders (13D and 13G)

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

2 holders report 5% or more of IBKR in their latest filing, all on Schedule 13G (passive). The largest reported stake is Vanguard Capital Management at 7.3% of the class (32,540,281 shares), filed 2026-04-30 for an event on 2026-03-31.

Filed	Form	Holder	Shares	Of class	Event
2026-04-30	13G	Vanguard Capital Managementinvestment adviser	32.5M	7.3%	2026-03-31
2026-03-27	13G/Ano. 13	The Vanguard Groupinvestment adviser	0	0.0%	2026-03-13
2025-11-07	13G/Ano. 5	Bares Capital Management, Inc.investment adviser	n/a	n/a	2025-10-31
2025-10-17	13G/Ano. 16	BlackRock, Inc.parent holding company	27.6M	6.2%	2025-09-30

13F holders

Tracked managers holding IBKR at their latest 13F. JSON

12 of the 30 tracked managers held IBKR at their latest 13F, $1.61B in total at quarter-end prices. Two Sigma Investments is the largest at $725.9M (0.5% of its portfolio) as of 2026-06-30. Over the prior quarter 7 added shares and 5 cut.

Fund	Quarter	Shares	Value	Of portfolio	Change in shares
Two Sigma Investments	2026-06-30	8.3M	$725.9M	0.53%	+27K
Viking Global Investors	2026-06-30	4.8M	$420.5M	1.20%	+3.4M
D. E. Shaw & Co.	2026-06-30	1.6M	$139.5M	0.07%	+1.1M
Citadel Advisors	2026-06-30	1.1M	$94.2M	0.01%	+345K
Point72 Asset Management	2026-06-30	867K	$75.5M	0.08%	+805K
Millennium Management	2026-06-30	772K	$67.2M	0.02%	+186K
Lone Pine Capital	2026-06-30	578K	$50.3M	0.31%	new
AQR Capital Management	2026-06-30	211K	$18.4M	0.01%	-31K
Soros Fund Management	2026-06-30	151K	$13.2M	0.16%	-494K
Renaissance Technologies	2026-06-30	64K	$5.6M	0.01%	-398K
Bridgewater Associates	2026-06-30	42K	$3.7M	0.01%	-30K
Fisher Asset Management	2026-06-30	7K	$643K	0.00%	-42

Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.

Financials

SEC XBRL, as filed. JSON

In Q2 FY 2026 (quarter ended 2026-06-30) Interactive Brokers Group reported revenue of $760.0M, up 31.5% from the same quarter a year earlier (0.69 diluted EPS). In FY 2025 it generated $15.81B of operating cash flow and spent $134.0M on dividends.

Cash: $7.71B
Equity: $5.90B
Total assets: $247.31B
Shares outstanding: 42,231,651

Quarterly, last 8 quarters

Quarter	Period end	Revenue	Net income	Margin	Diluted EPS
Q2 FY 2026	2026-06-30	$760.0M	n/a	n/a	0.69
Q1 FY 2026	2026-03-31	$699.0M	n/a	n/a	0.59
Q4 FY 2025derived	2025-12-31	$667.0M	n/a	n/a	n/a
Q3 FY 2025	2025-09-30	$603.0M	n/a	n/a	0.59
Q2 FY 2025	2025-06-30	$578.0M	n/a	n/a	0.51
Q1 FY 2025	2025-03-31	$592.0M	n/a	n/a	0.48
Q4 FY 2024derived	2024-12-31	$558.0M	n/a	n/a	n/a
Q3 FY 2024	2024-09-30	$507.0M	n/a	n/a	0.42

Fiscal years, with buybacks and dividends

Fiscal year	Ends	Revenue	Net income	Operating cash flow	Capex	Buybacks	Dividends
FY 2025	2025-12-31	$2.44B	n/a	$15.81B	n/a	n/a	$134.0M
FY 2024	2024-12-31	$1.98B	n/a	$8.72B	n/a	n/a	$92.0M
FY 2023	2023-12-31	$1.56B	n/a	$4.54B	n/a	n/a	$42.0M
FY 2022	2022-12-31	$1.51B	n/a	$3.97B	n/a	n/a	$40.0M
FY 2021	2021-12-31	$1.57B	n/a	$5.90B	n/a	n/a	$38.0M

Quarters are the three-month figures the company reports; a fourth quarter marked derived is the fiscal year less the three reported quarters, since companies report it only inside the 10-K. Fiscal years are the annual figures. Buybacks are the cash the company paid to repurchase its common stock in the year, not the amount authorized. Balance sheet lines are as of 2026-06-30; shares outstanding as of 2011-05-06 from the cover page.

What this page is

Interactive Brokers Group 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 Interactive Brokers Group (IBKR), SEC CIK 1381197, listed on Nasdaq, classified by the SEC as security brokers, dealers & flotation companies. 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 2026-10-15.JSON and CSV
Daily short volume: FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-10-28.JSON and CSV
Fails to deliver: SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-09-30.JSON and CSV
Planned sales: SEC EDGAR Form 144Source: SEC.New notices appear shortly after the SEC posts them; a notice is filed on or before the sale. Latest 2026-04-28.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 2026-04-30.JSON and CSV
13F holders: SEC EDGAR Form 13F-HRSource: SEC.Quarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
Financials: SEC EDGAR 10-K and 10-Q filingsSource: SEC.Weekly; values are as filed in the 10-Q and 10-K. Latest 2026-06-30.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 2026-10-15.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 2026-10-01.JSON and CSV
Company record: EDGAR filing index for CIK 1381197Ticker, 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 security brokers, dealers & flotation companies

Other company pages

Datasets

Frequently Asked Questions

How much of IBKR is sold short?

13,050,620 shares were held short at the 2026-10-15 settlement, 3.5 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 IBKR's daily short volume?

On 2026-10-28, 581,447 of the 1,832,620 IBKR shares reported to FINRA were sold short, 31.7% of the day's reported volume. Short volume is a flow for one day, not a position.

Does IBKR have fails to deliver?

The SEC's latest file shows 15 IBKR shares failed to deliver at settlement 2026-09-30. Fails are reported per settlement date and published twice a month with a lag.

Are IBKR insiders buying or selling?

Insiders at IBKR reported 3 open-market buys worth $7K in the last 90 days and no open-market sells. Latest filing: Conkling Lori A (Director) on 2026-10-01.

Have IBKR insiders filed to sell?

3 Form 144 notices on file for IBKR worth $37.2M at the prices reported; 0 in the last 90 days worth $0. Latest: Harris Lawrence E filed on 2026-04-28 to sell 26,000 shares ($2.0M) from 2026-04-28.

Who owns 5% or more of IBKR?

What did IBKR report last quarter?

Which tracked 13F managers own IBKR?

12 of the 30 tracked 13F managers held IBKR shares at their latest filing, $1.61B in all. The largest: Two Sigma Investments (8.3M shares, $725.9M), Andreas Halvorsen's Viking Global Investors (4.8M shares, $420.5M), D. E. Shaw & Co. (1.6M shares, $139.5M), Ken Griffin's Citadel Advisors (1.1M shares, $94.2M), Steve Cohen's Point72 Asset Management (867K shares, $75.5M), Izzy Englander's Millennium Management (772K shares, $67.2M). The table above lists all 12.

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