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GOODWILL, INTANGIBLE ASSETS, NET, AND DIGITAL ASSETS HELD (Tables) | 9 Months Ended
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Sep. 30, 2024
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of goodwill details by segment | The following table presents the details of goodwill by segment (in millions):
| Options |  | North American Equities |  | Europe and Asia Pacific |  | Global FX |  | Total
Balance as of December 31, 2023 | $ | 305.8 |  |  | $ | 2,004.4 |  |  | $ | 563.2 |  |  | $ | 267.2 |  |  | $ | 3,140.6 |
Changes in foreign currency exchange rates | — |  |  | (3.3) |  |  | 13.2 |  |  | — |  |  | 9.9 |
Balance as of September 30, 2024 | $ | 305.8 |  |  | $ | 2,001.1 |  |  | $ | 576.4 |  |  | $ | 267.2 |  |  | $ | 3,150.5 |
Schedule of details of intangible assets by segment | The following table presents the details of the intangible assets by segment (in millions):
| Options |  | North American Equities |  | Europe and Asia Pacific |  | Global FX |  | Digital |  | Total
Balance as of December 31, 2023 | $ | 134.1 |  |  | $ | 935.3 |  |  | $ | 352.5 |  |  | $ | 56.2 |  |  | $ | 83.4 |  |  | $ | 1,561.5 |
Additions | — |  |  | 1.0 |  |  | — |  |  | — |  |  | — |  |  | 1.0 |
Sales | — |  |  | — |  |  | — |  |  | — |  |  | (0.1) |  |  | (0.1) |
Amortization | (6.0) |  |  | (38.6) |  |  | (12.2) |  |  | (9.1) |  |  | (2.3) |  |  | (68.2) |
Changes in foreign currency exchange rates | — |  |  | (1.7) |  |  | 13.2 |  |  | — |  |  | — |  |  | 11.5 |
Impairment | — |  |  | — |  |  | — |  |  | — |  |  | (81.0) |  |  | (81.0) |
Balance as of September 30, 2024 | $ | 128.1 |  |  | $ | 896.0 |  |  | $ | 353.5 |  |  | $ | 47.1 |  |  | $ | — |  |  | $ | 1,424.7 |
Schedule of categories of intangible assets by segment | The following tables present the categories of intangible assets by segment as of September 30, 2024 and December 31, 2023 (in millions, except as stated):
| September 30, 2024 |  | Weighted Average Amortization Period (in years)
| Options |  | North American Equities |  | Europe and Asia Pacific |  | Global FX |  | Digital |
Trading registrations and licenses | $ | 95.5 |  |  | $ | 605.3 |  |  | $ | 218.4 |  |  | $ | — |  |  | $ | — |  |  | Indefinite
Customer relationships | 46.6 |  |  | 412.9 |  |  | 224.4 |  |  | 140.0 |  |  | — |  |  | 15
Market data customer relationships | 53.6 |  |  | 322.0 |  |  | 64.6 |  |  | 64.4 |  |  | — |  |  | 8
Technology | 28.1 |  |  | 56.5 |  |  | 35.3 |  |  | 22.5 |  |  | — |  |  | 6
Trademarks and trade names | 12.9 |  |  | 8.2 |  |  | 2.5 |  |  | 1.2 |  |  | — |  |  | 5
Digital assets held | — |  |  | 1.0 |  |  | — |  |  | — |  |  | — |  |  | Indefinite
Accumulated amortization | (108.6) |  |  | (509.9) |  |  | (191.7) |  |  | (181.0) |  |  | — |  |  |
| $ | 128.1 |  | $ | 896.0 |  | $ | 353.5 |  | $ | 47.1 |  | $ | — |  |
| December 31, 2023 |  | Weighted Average Amortization Period (in years)
| Options |  | North American Equities |  | Europe and Asia Pacific |  | Global FX |  | Digital |
Trading registrations and licenses | $ | 95.5 |  |  | $ | 606.0 |  |  | $ | 209.6 |  |  | $ | — |  |  | $ | 25.0 |  |  | Indefinite
Customer relationships | 46.6 |  |  | 413.9 |  |  | 216.1 |  |  | 140.0 |  |  | — |  |  | 15
Market data customer relationships | 53.6 |  |  | 322.0 |  |  | 61.6 |  |  | 64.4 |  |  | — |  |  | 8
Technology | 28.1 |  |  | 56.9 |  |  | 34.2 |  |  | 22.5 |  |  | 70.0 |  |  | 7
Trademarks and trade names | 12.9 |  |  | 8.2 |  |  | 2.4 |  |  | 1.2 |  |  | — |  |  | 6
Digital assets held | — |  |  | — |  |  | — |  |  | — |  |  | 0.1 |  |  | Indefinite
Accumulated amortization | (102.6) |  |  | (471.7) |  |  | (171.4) |  |  | (171.9) |  |  | (11.7) |  |  |
| $ | 134.1 |  | $ | 935.3 |  | $ | 352.5 |  | $ | 56.2 |  | $ | 83.4 |  |

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