Interactive Brokers Group, Inc.
MX ˙ BMV ˙ US45841N1072
SecurityMX:IBKR / Interactive Brokers Group, Inc.
InstitutionVictory Capital Management Inc
Latest Disclosed Ownership556,413 shares
Latest Disclosed Value $ 37,318,620
Victory Capital Management Inc reports 10.34% decrease in ownership of IBKR / Interactive Brokers Group, Inc.

On May 15, 2026 - Victory Capital Management Inc filed a 13F-HR form disclosing ownership of 556,413 shares of Interactive Brokers Group, Inc. (MX:IBKR) valued at $37,318,620 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 620,595 shares of Interactive Brokers Group, Inc.. This represents a change in shares of -10.34% 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)
2026-05-15 2026-03-31 13F INTERACTIVE BROKERS GROUP IN COM 45841N107 556,413 -64,182 -10.34 37,319 -6.49 0.0179
2026-02-13 2025-12-31 13F INTERACTIVE BROKERS GROUP IN COM 45841N107 620,595 -156,868 -20.18 39,910 -25.40 0.0225
2025-11-12 2025-09-30 13F INTERACTIVE BROKERS GROUP IN COM 45841N107 777,463 -37,934 -4.65 53,497 18.41 0.0313
2025-08-13 2025-06-30 13F INTERACTIVE BROKERS GROUP IN COM 45841N107 815,397 631,999 344.61 45,181 48.78 0.0291
2025-05-02 2025-03-31 13F INTERACTIVE BROKERS GROUP IN COM 45841N107 183,398 -13,144 -6.69 30,369 -12.54 0.0311
2025-02-06 2024-12-31 13F INTERACTIVE BROKERS GROUP IN COM 45841N107 196,542 30,891 18.65 34,723 50.41 0.0341
2024-11-05 2024-09-30 13F INTERACTIVE BROKERS GROUP IN COM 45841N107 165,651 -7,881 -4.54 23,085 8.51 0.0222
2024-08-05 2024-06-30 13F INTERACTIVE BROKERS GROUP IN COM 45841N107 173,532 37,288 27.37 21,275 39.79 0.0213
2024-05-03 2024-03-31 13F INTERACTIVE BROKERS GROUP IN COM 45841N107 136,244 -4,258 -3.03 15,220 30.67 0.0149
2024-02-05 2023-12-31 13F INTERACTIVE BROKERS GROUP IN COM 45841N107 140,502 -31,536 -18.33 11,648 -21.78 0.0123
2023-11-06 2023-09-30 13F INTERACTIVE BROKERS GROUP IN COM 45841N107 172,038 72,574 72.97 14,892 80.23 0.0171
2023-07-27 2023-06-30 13F INTERACTIVE BROKERS GROUP IN COM 45841N107 99,464 -607,458 -85.93 8,262 -85.84 0.0091
2023-05-02 2023-03-31 13F INTERACTIVE BROKERS GROUP IN COM 45841N107 706,922 -274,943 -28.00 58,363 -17.84 0.0656
2023-04-25 2022-12-31 13F/A-3 INTERACTIVE BROKERS GROUP IN COM 45841N107 981,865 -81,915 -7.70 71,038 4.49 0.0817
2023-03-10 2022-12-31 13F/A-2 INTERACTIVE BROKERS GROUP IN COM 45841N107 981,865 -81,915 71,038 0.0776
2023-02-10 2022-12-31 13F/A-1 INTERACTIVE BROKERS GROUP IN COM 45841N107 981,865 -81,915 71,038 0.0490
2023-02-09 2022-12-31 13F INTERACTIVE BROKERS GROUP IN COM 45841N107 956,783 -106,997 70,745 0.0481
2022-11-02 2022-09-30 13F INTERACTIVE BROKERS GROUP IN COM 45841N107 1,063,780 214,782 25.30 67,986 45.57 0.0793
2022-08-01 2022-06-30 13F INTERACTIVE BROKERS GROUP IN COM 45841N107 848,998 68,247 8.74 46,704 -8.36 0.0532
2022-05-04 2022-03-31 13F INTERACTIVE BROKERS GROUP IN COM 45841N107 780,751 91,928 13.35 50,963 -6.84 0.0510
2022-02-07 2021-12-31 13F INTERACTIVE BROKERS GROUP IN COM 45841N107 688,823 621,079 916.80 54,706 1,195.43 0.0503
2021-11-02 2021-09-30 13F INTERACTIVE BROKERS GROUP IN COM 45841N107 67,744 8,371 14.10 4,223 8.20 0.0041
2021-08-03 2021-06-30 13F INTERACTIVE BROKERS GROUP IN COM 45841N107 59,373 -1,578 -2.59 3,903 -12.33 0.0037
2021-05-04 2021-03-31 13F INTERACTIVE BROKERS GROUP IN COM 45841N107 60,951 -8,982 -12.84 4,452 4.51 0.0046
2021-02-01 2020-12-31 13F INTERACTIVE BROKERS GROUP IN COM 45841N107 69,933 10,672 18.01 4,260 48.74 0.0047
2020-11-09 2020-09-30 13F Interactive Brokers Group COM 45841N107 59,261 50,615 585.42 2,864 693.35 0.0037
2020-08-07 2020-06-30 13F INTERACTIVE BROKERS GROUP IN COM 45841N107 8,646 4 0.05 361 -3.22 0.0005
2020-05-12 2020-03-31 13F/A-1 INTERACTIVE BROKERS GROUP IN COM 45841N107 8,642 166 1.96 373 -5.57 0.0006
2020-05-04 2020-03-31 13F INTERACTIVE BROKERS GROUP IN COM 45841N107 8,642 166 373 408.2106
2020-02-06 2019-12-31 13F/A-1 INTERACTIVE BROKERS GROUP IN COM 45841N107 8,476 -449 -5.03 395 -17.71 0.0005
2020-02-04 2019-12-31 13F INTERACTIVE BROKERS GROUP IN COM 45841N107 8,839 -86 415 497.4566
2019-11-12 2019-09-30 13F INTERACTIVE BROKERS GROUP IN COM 45841N107 8,925 8,925 480 0.0006
2018-05-04 2018-03-31 13F INTERACTIVE BROKERS GROUP IN COM 45841N107 0 -621,557 -100.00 0 -100.00
2018-02-01 2017-12-31 13F INTERACTIVE BROKERS GROUP IN COM 45841N107 621,557 -294,032 -32.11 36,802 -10.76 0.0775
2017-10-27 2017-09-30 13F INTERACTIVE BROKERS GROUP IN COM 45841N107 915,589 469,755 105.37 41,238 147.17 0.0927
2017-08-07 2017-06-30 13F INTERACTIVE BROKERS GROUP IN COM 45841N107 445,834 414,835 1,338.22 16,684 1,450.56 0.0391
2017-05-10 2017-03-31 13F INTERACTIVE BROKERS GROUP IN COM 45841N107 30,999 10,327 49.96 1,076 42.52 0.0026
2017-02-09 2016-12-31 13F INTERACTIVE BROKERS GROUP IN COM 45841N107 20,672 2,381 13.02 755 17.05 0.0019
2016-11-02 2016-09-30 13F INTERACTIVE BROKERS GROUP IN COM 45841N107 18,291 18,291 0.00 645 0.0018
2015-11-06 2015-09-30 13F Interactive Brokers Group Inc CL A COM 45841N107 0 -20,896 -100.00 0 -100.00
2015-08-14 2015-06-30 13F/A-01 Interactive Brokers Group Inc CL A COM 45841N107 20,896 20,896 5,442.71 886 12,557.14 0.0033
2015-08-07 2015-06-30 13F Interactive Brokers Group Inc CL A COM 45841N107 20,896 886
2014-02-12 2013-12-31 13F Interactive Brokers Group Common Stock 45841N107 0 -377 -100.00 0 -100.00
2014-03-12 2013-09-30 13F/A-1 Interactive Brokers Group Common Stock 45841N107 377 377 7 0.0001
2013-11-12 2013-09-30 13F Interactive Brokers Group Common Stock 45841N107 377 7
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.