Interactive Brokers Group, Inc.
MX ˙ BMV ˙ US45841N1072
SecurityMX:IBKR / Interactive Brokers Group, Inc.
InstitutionFulton Bank, N.a.
Latest Disclosed Ownership5,771 shares
Latest Disclosed Value $ 387,060
Fulton Bank, N.a. reports 1.71% increase in ownership of IBKR / Interactive Brokers Group, Inc.

On April 24, 2026 - Fulton Bank, N.a. filed a 13F-HR form disclosing ownership of 5,771 shares of Interactive Brokers Group, Inc. (MX:IBKR) valued at $387,060 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 8, 2026 disclosing 5,674 shares of Interactive Brokers Group, Inc.. This represents a change in shares of 1.71% 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)
2026-04-24 2026-03-31 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 5,771 97 1.71 387 6.32 0.0076
2026-01-08 2025-12-31 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 5,674 -828 -12.73 365 -18.57 0.0070
2025-10-21 2025-09-30 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 6,502 -1,822 -21.89 447 -3.04 0.0156
2025-07-10 2025-06-30 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 8,324 5,649 211.18 461 4.30 0.0170
2025-04-09 2025-03-31 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 2,675 -644 -19.40 443 -24.57 0.0179
2025-01-08 2024-12-31 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 3,319 190 6.07 586 34.40 0.0226
2024-10-07 2024-09-30 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 3,129 195 6.65 436 21.45 0.0166
2024-07-09 2024-06-30 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 2,934 853 40.99 360 54.74 0.0145
2024-04-10 2024-03-31 13F INTERACTIVE BROKERS GROUP IN COM CL A 45841N107 2,081 2,081 232 0.0095
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.