Interactive Brokers Group, Inc.
MX ˙ BMV ˙ US45841N1072
SecurityMX:IBKR / Interactive Brokers Group, Inc.
InstitutionDanske Bank A/s
Latest Disclosed Ownership213,708 shares
Latest Disclosed Value $ 14,333,396
Danske Bank A/s reports 4.21% decrease in ownership of IBKR / Interactive Brokers Group, Inc.

On May 12, 2026 - Danske Bank A/s filed a 13F-HR form disclosing ownership of 213,708 shares of Interactive Brokers Group, Inc. (MX:IBKR) valued at $14,333,396 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 223,108 shares of Interactive Brokers Group, Inc.. This represents a change in shares of -4.21% 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)
2026-05-12 2026-03-31 13F Interactive Brokers Group COM CL A 45841N107 213,708 -9,400 -4.21 14,333 -0.10 0.0162
2026-02-02 2025-12-31 13F Interactive Brokers Group COM CL A 45841N107 223,108 11,500 5.43 14,348 -1.46 0.0334
2025-11-19 2025-09-30 13F/A-1 Interactive Brokers Group COM CL A 45841N107 211,608 39,700 23.09 14,561 52.86 0.0362
2025-12-18 2025-06-30 13F Interactive Brokers Group COM CL A 45841N107 171,908 141,708 469.23 9,525 90.50 0.0237
2025-12-18 2025-03-31 13F Interactive Brokers Group COM CL A 45841N107 30,200 30,100 30,100.00 5,001 29,311.76 0.0153
2026-03-18 2024-12-31 13F Interactive Brokers Group COM CL A 45841N107 100 -200 -66.67 18 -58.54 0.0001
2026-03-18 2024-09-30 13F Interactive Brokers Group COM CL A 45841N107 300 100 50.00 42 70.83 0.0001
2026-03-18 2024-06-30 13F Interactive Brokers Group COM CL A 45841N107 200 200 25 0.0001
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.