| Interactive Brokers Group, Inc. (IBKR) | |||||||||||||||||||||||||||||||||||||||||||||||||
| Q1-CY2026 | Q4-CY2025 | Q3-CY2025 | Q2-CY2025 | Q1-CY2025 | Q4-CY2024 | Q3-CY2024 | Q2-CY2024 | Q1-CY2024 | Q4-CY2023 | Q3-CY2023 | Q2-CY2023 | Q1-CY2023 | Q4-CY2022 | Q3-CY2022 | Q2-CY2022 | Q1-CY2022 | Q4-CY2021 | Q3-CY2021 | Q2-CY2021 | Q1-CY2021 | Q4-CY2020 | Q3-CY2020 | Q2-CY2020 | Q1-CY2020 | Q4-CY2019 | Q3-CY2019 | Q2-CY2019 | Q1-CY2019 | Q4-CY2018 | Q3-CY2018 | Q2-CY2018 | Q1-CY2018 | Q4-CY2017 | Q3-CY2017 | Q2-CY2017 | Q1-CY2017 | Q4-CY2016 | Q3-CY2016 | Q2-CY2016 | Q1-CY2016 | Q4-CY2015 | Q3-CY2015 | Q2-CY2015 | Q1-CY2015 | Q4-CY2014 | Q3-CY2014 | Q2-CY2014 | Q1-CY2014 | |
| Balance Sheet Date | 2025-Dec-31 | 2025-Sep-30 | 2025-Jun-30 | 2025-Mar-31 | 2024-Dec-31 | 2024-Sep-30 | 2024-Jun-30 | 2024-Mar-31 | 2023-Dec-31 | 2023-Sep-30 | 2023-Jun-30 | 2023-Mar-31 | 2022-Dec-31 | 2022-Sep-30 | 2022-Jun-30 | 2022-Mar-31 | 2021-Dec-31 | 2021-Sep-30 | 2021-Jun-30 | 2021-Mar-31 | 2020-Dec-31 | 2020-Sep-30 | 2020-Jun-30 | 2020-Mar-31 | 2019-Dec-31 | 2019-Sep-30 | 2019-Jun-30 | 2019-Mar-31 | 2018-Dec-31 | 2018-Sep-30 | 2018-Jun-30 | 2018-Mar-31 | 2017-Dec-31 | 2017-Sep-30 | 2017-Jun-30 | 2017-Mar-31 | 2016-Dec-31 | 2016-Sep-30 | 2016-Jun-30 | 2016-Mar-31 | 2015-Dec-31 | 2015-Sep-30 | 2015-Jun-30 | 2015-Mar-31 | 2014-Dec-31 | 2014-Sep-30 | 2014-Jun-30 | 2014-Mar-31 | |
| Fiscal Period | Q4-FY2025 | Q3-FY2025 | Q2-FY2025 | Q1-FY2025 | Q4-FY2024 | Q3-FY2024 | Q2-FY2024 | Q1-FY2024 | Q4-FY2023 | Q3-FY2023 | Q2-FY2023 | Q1-FY2023 | Q4-FY2022 | Q3-FY2022 | Q2-FY2022 | Q1-FY2022 | Q4-FY2021 | Q3-FY2021 | Q2-FY2021 | Q1-FY2021 | Q4-FY2020 | Q3-FY2020 | Q2-FY2020 | Q1-FY2020 | Q4-FY2019 | Q3-FY2019 | Q2-FY2019 | Q1-FY2019 | Q4-FY2018 | Q3-FY2018 | Q2-FY2018 | Q1-FY2018 | Q4-FY2017 | Q3-FY2017 | Q2-FY2017 | Q1-FY2017 | Q4-FY2016 | Q3-FY2016 | Q2-FY2016 | Q1-FY2016 | Q4-FY2015 | Q3-FY2015 | Q2-FY2015 | Q1-FY2015 | Q4-FY2014 | Q3-FY2014 | Q2-FY2014 | Q1-FY2014 | |
| Operating Cash Flow | 1,609,000,000$ | 4,479,000,000$ | 7,139,000,000$ | 2,584,000,000$ | 1,838,000,000$ | 3,582,000,000$ | 1,621,000,000$ | 1,683,000,000$ | 2,369,000,000$ | 979,000,000$ | 2,119,000,000$ | (923,000,000$) | (30,000,000$) | 2,414,000,000$ | (541,000,000$) | 2,125,000,000$ | (375,000,000$) | 1,213,000,000$ | 1,324,000,000$ | 3,734,000,000$ | 4,596,000,000$ | (174,000,000$) | (1,557,000,000$) | 5,203,000,000$ | 488,000,000$ | 133,000,000$ | 1,442,000,000$ | 603,000,000$ | (408,000,000$) | 632,000,000$ | 931,000,000$ | 1,201,000,000$ | (1,230,000,000$) | 709,000,000$ | 807,000,000$ | 779,000,000$ | 121,000,000$ | (220,000,000$) | 377,751,000$ | 242,989,000$ | 55,000,000$ | (259,000,000$) | |||||||
| Investing Cash Flow | (59,000,000$) | (44,000,000$) | (42,000,000$) | (26,000,000$) | 18,000,000$ | (35,000,000$) | (14,000,000$) | (13,000,000$) | (25,000,000$) | (18,000,000$) | (15,000,000$) | 6,000,000$ | (19,000,000$) | (22,000,000$) | (12,000,000$) | (14,000,000$) | (129,000,000$) | (21,000,000$) | (17,000,000$) | (21,000,000$) | (22,000,000$) | (5,000,000$) | (12,000,000$) | (11,000,000$) | (12,000,000$) | (15,000,000$) | (20,000,000$) | (42,000,000$) | (14,000,000$) | (7,000,000$) | (28,000,000$) | (8,000,000$) | (12,000,000$) | (4,000,000$) | (4,000,000$) | (6,000,000$) | (13,000,000$) | (4,000,000$) | (9,670,000$) | (151,722,000$) | 128,000,000$ | 87,000,000$ | |||||||
| Purchases of Property and Equipment | |||||||||||||||||||||||||||||||||||||||||||||||||
| Financing Cash Flow | (183,000,000$) | (230,000,000$) | (331,000,000$) | (225,000,000$) | (186,000,000$) | (177,000,000$) | (333,000,000$) | (137,000,000$) | (108,000,000$) | (127,000,000$) | (252,000,000$) | (137,000,000$) | (122,000,000$) | (70,000,000$) | (173,000,000$) | (105,000,000$) | (174,000,000$) | (506,000,000$) | 158,000,000$ | (1,000,000$) | (555,000,000$) | 416,000,000$ | (27,000,000$) | (63,000,000$) | (61,000,000$) | (242,000,000$) | (46,000,000$) | (70,000,000$) | (58,000,000$) | (222,000,000$) | (55,000,000$) | (64,000,000$) | (80,000,000$) | (133,000,000$) | (84,000,000$) | (77,000,000$) | (85,000,000$) | (45,000,000$) | (65,907,000$) | (2,198,000$) | (186,000,000$) | (53,000,000$) | |||||||
| End Cash Position | 4,963,000,000$ | 5,128,000,000$ | 4,688,000,000$ | 3,500,000,000$ | 3,633,000,000$ | 3,595,000,000$ | 3,918,000,000$ | 4,063,000,000$ | 3,753,000,000$ | 3,824,000,000$ | 3,681,000,000$ | 3,214,000,000$ | 3,436,000,000$ | 3,184,000,000$ | 2,881,000,000$ | 2,667,000,000$ | 2,395,000,000$ | 2,838,000,000$ | 3,218,000,000$ | 2,627,000,000$ | 4,292,000,000$ | 3,292,000,000$ | 3,115,000,000$ | 3,101,000,000$ | 2,882,000,000$ | 3,035,000,000$ | 3,162,000,000$ | 2,546,000,000$ | 2,597,000,000$ | 3,062,000,000$ | 2,500,000,000$ | 1,901,000,000$ | 1,732,000,000$ | 2,056,000,000$ | 2,115,000,000$ | 1,656,000,000$ | 1,925,000,000$ | 1,550,000,000$ | 1,443,000,000$ | 1,747,000,000$ | 1,601,000,000$ | 1,588,000,000$ | 1,041,000,000$ | 990,000,000$ | 1,269,000,000$ | 1,011,000,000$ | 1,000,000,000$ | 991,000,000$ | |
| Exchange Rate Effect | 16,000,000$ | (38,000,000$) | 306,000,000$ | 107,000,000$ | (248,000,000$) | 153,000,000$ | (10,000,000$) | (102,000,000$) | 148,000,000$ | (76,000,000$) | 31,000,000$ | 19,000,000$ | 158,000,000$ | (123,000,000$) | (105,000,000$) | (41,000,000$) | (2,000,000$) | (40,000,000$) | 21,000,000$ | (76,000,000$) | 95,000,000$ | 45,000,000$ | 22,000,000$ | (38,000,000$) | 38,000,000$ | (28,000,000$) | 16,000,000$ | (2,000,000$) | (5,000,000$) | (4,000,000$) | (78,000,000$) | 8,000,000$ | (1,000,000$) | 5,000,000$ | 38,000,000$ | 23,000,000$ | |||||||||||||
| Dividends Paid | 192,000,000$ | 232,000,000$ | 323,000,000$ | 223,000,000$ | 166,000,000$ | 199,000,000$ | 308,000,000$ | 134,000,000$ | 114,000,000$ | 121,000,000$ | 234,000,000$ | 129,000,000$ | 105,000,000$ | 88,000,000$ | 162,000,000$ | 89,000,000$ | 154,000,000$ | 109,000,000$ | 54,000,000$ | 95,000,000$ | 45,000,000$ | 73,000,000$ | 136,000,000$ | 61,000,000$ | 62,000,000$ | 213,000,000$ | 7,000,000$ | 8,000,000$ | 7,000,000$ | 8,000,000$ | 7,000,000$ | 7,000,000$ | 7,000,000$ | 7,000,000$ | 7,000,000$ | 7,000,000$ | 6,000,000$ | 7,000,000$ | 6,000,000$ | 7,000,000$ | 7,000,000$ | 6,000,000$ | 6,000,000$ | 6,000,000$ | 6,000,000$ | 6,000,000$ | 6,000,000$ | 5,000,000$ | |
| Unlevered Free Cash Flow | 1,609,000,000$ | 4,479,000,000$ | 7,139,000,000$ | 2,584,000,000$ | 1,838,000,000$ | 3,582,000,000$ | 1,621,000,000$ | 1,683,000,000$ | 2,369,000,000$ | 979,000,000$ | 2,119,000,000$ | (923,000,000$) | (30,000,000$) | 2,414,000,000$ | (541,000,000$) | 2,125,000,000$ | (375,000,000$) | 1,213,000,000$ | 1,324,000,000$ | 3,734,000,000$ | 4,596,000,000$ | (174,000,000$) | (1,557,000,000$) | 5,203,000,000$ | 488,000,000$ | 133,000,000$ | 1,442,000,000$ | 603,000,000$ | (408,000,000$) | 632,000,000$ | 931,000,000$ | 1,201,000,000$ | (1,230,000,000$) | 709,000,000$ | 807,000,000$ | 779,000,000$ | 121,000,000$ | (220,000,000$) | 377,751,000$ | 242,989,000$ | 55,000,000$ | (259,000,000$) | |||||||