Interactive Brokers Group, Inc.
MX ˙ BMV ˙ US45841N1072
SecurityMX:IBKR / Interactive Brokers Group, Inc.
InstitutionEdgestream Partners, L.P.
Latest Disclosed Ownership37,399 shares
Latest Disclosed Value $ 2,508,351
Edgestream Partners, L.P. reports 55.58% decrease in ownership of IBKR / Interactive Brokers Group, Inc.

On May 18, 2026 - Edgestream Partners, L.P. filed a 13F-HR form disclosing ownership of 37,399 shares of Interactive Brokers Group, Inc. (MX:IBKR) valued at $2,508,351 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 84,202 shares of Interactive Brokers Group, Inc.. This represents a change in shares of -55.58% 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)
2026-05-18 2026-03-31 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 37,399 -46,803 -55.58 2,508 -53.68 0.0823
2026-02-13 2025-12-31 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 84,202 -14,084 -14.33 5,415 -19.93 0.1524
2025-11-12 2025-09-30 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 98,286 -95,722 -49.34 6,763 -37.08 0.1977
2025-08-13 2025-06-30 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 194,008 180,745 1,362.78 10,750 389.48 0.2989
2025-05-02 2025-03-31 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 13,263 -42,501 -76.22 2,196 -77.71 0.0745
2025-02-07 2024-12-31 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 55,764 10,978 24.51 9,852 57.84 0.4197
2024-11-14 2024-09-30 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 44,786 36,135 417.70 6,241 488.77 0.2745
2024-08-09 2024-06-30 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 8,651 -8,148 -48.50 1,061 -43.50 0.0511
2024-05-10 2024-03-31 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 16,799 11,208 200.47 1,877 305.18 0.0935
2024-02-14 2023-12-31 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 5,591 1,590 39.74 463 33.82 0.0334
2023-11-15 2023-09-30 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 4,001 648 19.33 346 24.46 0.0276
2023-08-10 2023-06-30 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 3,353 -2,526 -42.97 279 -42.68 0.0252
2023-05-15 2023-03-31 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 5,879 5,879 485 0.0536
2023-02-13 2022-12-31 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 0 -4,084 -100.00 0 -100.00
2022-11-14 2022-09-30 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 4,084 4,084 261 0.0202
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.