Interactive Brokers Group, Inc.
MX ˙ BMV ˙ US45841N1072
SecurityMX:IBKR / Interactive Brokers Group, Inc.
InstitutionJump Financial, LLC
Latest Disclosed Ownership136,788 shares
Latest Disclosed Value $ 9,174,371
Jump Financial, LLC reports 58.42% decrease in ownership of IBKR / Interactive Brokers Group, Inc.

On May 14, 2026 - Jump Financial, LLC filed a 13F-HR form disclosing ownership of 136,788 shares of Interactive Brokers Group, Inc. (MX:IBKR) valued at $9,174,371 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 328,978 shares of Interactive Brokers Group, Inc.. This represents a change in shares of -58.42% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-14 2026-03-31 13F Interactive Brokers Group Common Stock 45841N107 136,788 -192,190 -58.42 9,174 -56.64 0.1092
2026-02-17 2025-12-31 13F Interactive Brokers Group Common Stock 45841N107 328,978 115,871 54.37 21,157 44.28 0.2599
2025-11-13 2025-09-30 13F Interactive Brokers Group Common Stock 45841N107 213,107 -490,981 -69.73 14,664 -62.42 0.1755
2025-08-13 2025-06-30 13F Interactive Brokers Group Common Stock 45841N107 704,088 497,041 240.06 39,014 13.79 0.4297
2025-05-14 2025-03-31 13F Interactive Brokers Group Common Stock 45841N107 207,047 149,404 259.19 34,285 236.68 0.4713
2025-02-13 2024-12-31 13F Interactive Brokers Group Common Stock 45841N107 57,643 26,960 87.87 10,184 138.20 0.2126
2024-11-14 2024-09-30 13F Interactive Brokers Group Common Stock 45841N107 30,683 13,030 73.81 4,276 97.55 0.0872
2024-11-14 2024-06-30 13F/A-1 Interactive Brokers Group Common Stock 45841N107 17,653 -1,031 -5.52 2,164 3.69 0.0432
2024-08-14 2024-06-30 13F INTERACTIVE BROKERS GROUP IN Common Stock 45841N107 17,653 -1,031 2,164 0.0432
2024-05-13 2024-03-31 13F INTERACTIVE BROKERS GROUP IN Common Stock 45841N107 18,684 9,860 111.74 2,087 185.50 0.0571
2024-10-21 2023-12-31 13F/A-1 Interactive Brokers Group Common Stock 45841N107 8,824 -3,180 -26.49 732 -29.64 0.0241
2024-02-07 2023-12-31 13F INTERACTIVE BROKERS GROUP IN Common Stock 45841N107 8,824 -3,180 732 0.0242
2024-10-21 2023-09-30 13F/A-1 Interactive Brokers Group Common Stock 45841N107 12,004 -25,852 -68.29 1,039 -66.95 0.0392
2023-11-07 2023-09-30 13F INTERACTIVE BROKERS GROUP IN Common Stock 45841N107 12,004 -25,852 1,039 0.0397
2024-10-21 2023-06-30 13F/A-1 INTERACTIVE BROKERS GROUP Common Stock 45841N107 37,856 -33,600 -47.02 3,145 -46.70 0.1181
2023-08-07 2023-06-30 13F INTERACTIVE BROKERS GROUP IN Common Stock 45841N107 37,856 -33,600 3,145 0.1184
2024-10-21 2023-03-31 13F/A-1 Interactive Brokers Group Common Stock 45841N107 71,456 12,368 20.93 5,899 37.99 0.2454
2023-05-03 2023-03-31 13F INTERACTIVE BROKERS GROUP IN Common Stock 45841N107 71,456 12,368 5,899 0.2454
2023-02-14 2022-12-31 13F INTERACTIVE BROKERS GROUP IN Common Stock 45841N107 59,088 -35,334 -37.42 4,275 -29.15 0.2266
2022-11-07 2022-09-30 13F INTERACTIVE BROKERS GROUP IN Common Stock 45841N107 94,422 94,422 6,034 0.2362
2024-09-06 2022-03-31 13F/A-1 Interactive Brokers Group Common Stock 45841N107 0 -17,461 -100.00 0 -100.00
2022-05-12 2022-03-31 13F Interactive Brokers Group Common Stock 45841N107 0 -17,461 0
2022-02-10 2021-12-31 13F Interactive Brokers Group Common Stock 45841N107 17,461 11,219 179.73 1,387 256.56 0.0871
2021-11-12 2021-09-30 13F INTERACTIVE BROKERS GROUP IN Common Stock 45841N107 6,242 -31,658 -83.53 389 -84.38 0.0281
2021-08-13 2021-06-30 13F INTERACTIVE BROKERS GROUP IN Common Stock 45841N107 37,900 37,900 2,491 0.2407
2021-05-15 2021-03-31 13F INTERACTIVE BROKERS GROUP IN Common Stock 45841N107 0 -18,100 -100.00 0 -100.00
2021-02-12 2020-12-31 13F INTERACTIVE BROKERS GROUP IN Common Stock 45841N107 18,100 18,100 1,103 0.1877
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.