Interactive Brokers Group, Inc.
MX ˙ BMV ˙ US45841N1072
SecurityMX:IBKR / Interactive Brokers Group, Inc.
InstitutionJanney Montgomery Scott LLC
Latest Disclosed Ownership199,570 shares
Latest Disclosed Value $ 13,385
Janney Montgomery Scott LLC reports 1.28% decrease in ownership of IBKR / Interactive Brokers Group, Inc.

On April 22, 2026 - Janney Montgomery Scott LLC filed a 13F-HR form disclosing ownership of 199,570 shares of Interactive Brokers Group, Inc. (MX:IBKR) valued at $13,385 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 202,148 shares of Interactive Brokers Group, Inc.. This represents a change in shares of -1.28% 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)
2026-04-22 2026-03-31 13F INTERACTIVE BRKRS GRP A Common Stock 45841N107 199,570 -2,578 -1.28 13 0.00 0.0331
2026-02-11 2025-12-31 13F INTERACTIVE BRKRS GRP A Common Stock 45841N107 202,148 -11,874 -5.55 13 -7.14 0.0298
2025-10-27 2025-09-30 13F INTERACTIVE BRKRS GRP A Common Stock 45841N107 214,022 -8,128 -3.66 15 16.67 0.0349
2025-07-17 2025-06-30 13F INTERACTIVE BRKRS GRP A Common Stock 45841N107 222,150 148,380 201.14 12 0.00 0.0322
2025-04-17 2025-03-31 13F INTERACTIVE BRKRS GRP A Common Stock 45841N107 73,770 -1,332 -1.77 12 -7.69 0.0346
2025-01-17 2024-12-31 13F INTERACTIVE BRKRS GRP A Common Stock 45841N107 75,102 -1,636 -2.13 13 30.00 0.0368
2024-10-29 2024-09-30 13F INTERACTIVE BRKRS GRP A Common Stock 45841N107 76,738 278 0.36 11 11.11 0.0299
2024-07-25 2024-06-30 13F INTERACTIVE BRKRS GRP A Common Stock 45841N107 76,460 4,714 6.57 9 12.50 0.0286
2024-05-01 2024-03-31 13F INTERACTIVE BRKRS GRP A Common Stock 45841N107 71,746 1,709 2.44 8 60.00 0.0238
2024-02-08 2023-12-31 13F INTERACTIVE BRKRS GRP A Common Stock 45841N107 70,037 -111,400 -61.40 6 -66.67 0.0188
2023-11-08 2023-09-30 13F INTERACTIVE BRKRS GRP A Common Stock 45841N107 181,437 326 0.18 16 0.00 0.0585
2023-07-26 2023-06-30 13F INTERACTIVE BRKRS GRP A Common Stock 45841N107 181,111 16,370 9.94 15 15.38 0.0525
2023-04-28 2023-03-31 13F INTERACTIVE BRKRS GRP A Common Stock 45841N107 164,741 80,068 94.56 14 116.67 0.0555
2023-02-01 2022-12-31 13F INTERACTIVE BRKRS GRP A Common Stock 45841N107 84,673 -471 -0.55 6 -99.89 0.0239
2022-10-25 2022-09-30 13F INTERACTIVE BRKRS GRP A Common Stock 45841N107 85,144 971 1.15 5,442 17.54 0.0233
2022-08-03 2022-06-30 13F INTERACTIVE BRKRS GRP A Common Stock 45841N107 84,173 -5,022 -5.63 4,630 -21.25 0.0209
2022-05-04 2022-03-31 13F INDEPENDENCE HLDG CO Common Stock 45841N107 89,195 -4,876 -5.18 5,879 -21.31 0.0251
2022-01-27 2021-12-31 13F INTERACTIVE BRKRS GRP A Common Stock 45841N107 94,071 437 0.47 7,471 27.99 0.0290
2021-10-29 2021-09-30 13F INTERACTIVE BRKRS GRP A Common Stock 45841N107 93,634 2,879 3.17 5,837 -2.15 0.0250
2021-07-26 2021-06-30 13F INTERACTIVE BRKRS GRP A Common Stock 45841N107 90,755 4,317 4.99 5,965 -5.51 0.0263
2021-04-27 2021-03-31 13F INTERACTIVE BRKRS GRP A Common Stock 45841N107 86,438 28,876 50.17 6,313 80.01 0.0307
2021-01-25 2020-12-31 13F INTERACTIVE BRKRS GRP A Common Stock 45841N107 57,562 3,813 7.09 3,507 34.99 0.0169
2020-11-06 2020-09-30 13F INTERACTIVE BRKRS GRP A Common Stock 45841N107 53,749 7,614 16.50 2,598 34.82 0.0148
2020-07-23 2020-06-30 13F INTERACTIVE BRKRS GRP A Common Stock 45841N107 46,135 5,665 14.00 1,927 10.30 0.0122
2020-04-30 2020-03-31 13F INTERACTIVE BRKRS GRP A Common Stock 45841N107 40,470 1,300 3.32 1,747 -4.33 0.0138
2020-01-21 2019-12-31 13F INTERACTIVE BRKRS GRP A Common Stock 45841N107 39,170 -4,122 -9.52 1,826 -21.36 0.0120
2019-10-29 2019-09-30 13F INTERACTIVE BRKRS GRP A Common Stock 45841N107 43,292 1,162 2.76 2,322 0.69 0.0169
2019-07-29 2019-06-30 13F INTERACTIVE BROKERS GRP Common Stock 45841N107 42,130 230 0.55 2,306 5.88 0.0177
2019-04-30 2019-03-31 13F/A-1 INTERACTIVE BROKERS GRP Common Stock 45841N107 41,900 41,900 2,178 0.0179
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.