Interactive Brokers Group, Inc.
MX ˙ BMV ˙ US45841N1072
SecurityMX:IBKR / Interactive Brokers Group, Inc.
InstitutionPenserra Capital Management LLC
Latest Disclosed Ownership2,415 shares
Latest Disclosed Value $ 161
Penserra Capital Management LLC reports 40.01% decrease in ownership of IBKR / Interactive Brokers Group, Inc.

On May 11, 2026 - Penserra Capital Management LLC filed a 13F-HR form disclosing ownership of 2,415 shares of Interactive Brokers Group, Inc. (MX:IBKR) valued at $161 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 4,026 shares of Interactive Brokers Group, Inc..

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)
2026-05-11 2026-03-31 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 2,415 -1,611 -40.01 0 0.0019
2026-02-12 2025-12-31 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 4,026 964 31.48 0 0.0031
2025-11-04 2025-09-30 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 3,062 822 36.70 0 0.0025
2025-08-06 2025-06-30 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 2,240 1,745 352.53 0 0.0017
2025-04-29 2025-03-31 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 495 -9,110 -94.85 0 -100.00 0.0014
2025-02-13 2024-12-31 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 9,605 6,242 185.61 2 0.0310
2024-11-12 2024-09-30 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 3,363 -11,013 -76.61 0 -100.00 0.0101
2024-08-13 2024-06-30 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 14,376 6,343 78.96 2 0.0223
2024-05-15 2024-03-31 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 8,033 8,033 1 0.0113
2023-11-15 2023-09-30 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 0 -904 -100.00 0 0.0000
2023-08-11 2023-06-30 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 904 581 179.88 0 0.0015
2023-04-24 2023-03-31 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 323 3 0.94 0 0.0005
2023-02-13 2022-12-31 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 320 -1 -0.31 0 -100.00 0.0005
2022-11-14 2022-09-30 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 321 -55 -14.63 20 0.00 0.0006
2022-08-15 2022-06-30 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 376 -393 -51.11 20 -55.56 0.0005
2022-05-13 2022-03-31 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 769 5 0.65 45 -25.00 0.0011
2022-02-15 2021-12-31 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 764 284 59.17 60 106.90 0.0013
2021-11-15 2021-09-30 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 480 480 29 0.0006
2019-08-13 2019-06-30 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 0 -609 -100.00 0 -100.00
2019-05-08 2019-03-31 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 609 1 0.16 33 0.00 0.0026
2019-02-06 2018-12-31 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 608 -112 -15.56 33 -15.38 0.0032
2018-11-05 2018-09-30 13F INTERACTIVE BROKERS GROUP IN COM 45841N107 720 -72 -9.09 39 -23.53 0.0024
2018-08-13 2018-06-30 13F INTERACTIVE BROKERS GROUP IN COM 45841N107 792 -49,402 -98.42 51 -98.49 0.0032
2018-05-08 2018-03-31 13F INTERACTIVE BROKERS GROUP IN COM 45841N107 50,194 49,774 11,850.95 3,374 13,958.33 0.3189
2018-02-07 2017-12-31 13F INTERACTIVE BROKERS GROUP IN COM 45841N107 420 114 37.25 24 84.62 0.0032
2017-10-26 2017-09-30 13F INTERACTIVE BROKERS GROUP IN COM 45841N107 306 306 13 0.0031
2017-05-09 2017-03-31 13F INTERACTIVE BROKERS GROUP IN COM 45841N107 0 -508 -100.00 0 -100.00
2017-02-10 2016-12-31 13F INTERACTIVE BROKERS GROUP IN COM 45841N107 508 62 13.90 18 20.00 0.0021
2016-11-03 2016-09-30 13F INTERACTIVE BROKERS GROUP IN COM 45841N107 446 205 85.06 15 66.67 0.0018
2016-08-09 2016-06-30 13F INTERACTIVE BROKERS GROUP IN COM 45841N107 241 80 49.69 9 50.00 0.0013
2016-05-10 2016-03-31 13F INTERACTIVE BROKERS GROUP IN COM 45841N107 161 -65 -28.76 6 -40.00 0.0006
2016-02-08 2015-12-31 13F * INTERACTIVE BROKERS GROUP IN COM COM 45841N107 226 226 10 0.0010
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.