Interactive Brokers Group, Inc.
MX ˙ BMV ˙ US45841N1072
SecurityMX:IBKR / Interactive Brokers Group, Inc.
InstitutionCI Private Wealth, LLC
Latest Disclosed Ownership118,302 shares
Latest Disclosed Value $ 7,871,785
CI Private Wealth, LLC reports 33.09% increase in ownership of IBKR / Interactive Brokers Group, Inc.

On May 15, 2026 - CI Private Wealth, LLC filed a 13F-HR form disclosing ownership of 118,302 shares of Interactive Brokers Group, Inc. (MX:IBKR) valued at $7,871,785 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on March 9, 2026 disclosing 88,886 shares of Interactive Brokers Group, Inc.. This represents a change in shares of 33.09% 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 CL A 45841N107 118,302 29,416 33.09 7,872 37.68 0.0110
2026-03-09 2025-12-31 13F/A-1 INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 88,886 14,378 19.30 5,717 11.53 0.0078
2026-02-19 2025-12-31 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 214,430 139,922 5,592 0.0021
2025-11-14 2025-09-30 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 74,508 2,784 3.88 5,127 28.99 0.0081
2025-09-26 2025-06-30 13F/A-1 INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 71,724 56,716 377.91 3,974 59.92 0.0053
2025-08-15 2025-06-30 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 72,016 57,008 3,990 0.0042
2025-05-14 2025-03-31 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 15,008 6,208 70.55 2,485 59.91 0.0041
2025-02-10 2024-12-31 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 8,800 1,132 14.76 1,555 45.51 0.0026
2024-11-12 2024-09-30 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 7,668 2,030 36.01 1,069 54.56 0.0017
2024-08-13 2024-06-30 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 5,638 187 3.43 691 13.84 0.0012
2024-05-09 2024-03-31 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 5,451 96 1.79 608 37.02 0.0011
2024-02-09 2023-12-31 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 5,355 -16 -0.30 444 -4.53 0.0008
2023-11-03 2023-09-30 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 5,371 5,371 465 0.0011
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.