The following tables present the categories of intangible assets by segment as of June 30, 2024 and December 31, 2023 (in millions, except as stated): | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | June 30, 2024 | | Weighted | | | | | | North | | Europe | | | | | | | | Average | | | | | American | | and Asia | | | | | | | | Amortization | | | Options | | Equities | | Pacific | | Global FX | | Digital | | Period (in years) | Trading registrations and licenses | | $ | 95.5 | | $ | 605.0 | | $ | 206.6 | | $ | — | | $ | — | | Indefinite | Customer relationships | | | 46.6 | | | 412.3 | | | 211.4 | | | 140.0 | | | — | | 15 | Market data customer relationships | | | 53.6 | | | 322.0 | | | 61.0 | | | 64.4 | | | — | | 8 | Technology | | | 28.1 | | | 56.3 | | | 33.8 | | | 22.5 | | | — | | 6 | Trademarks and tradenames | | | 12.9 | | | 8.2 | | | 2.4 | | | 1.2 | | | — | | 6 | Digital assets held | | | — | | | 1.0 | | | — | | | — | | | 0.1 | | Indefinite | Accumulated amortization | | | (106.8) | | | (497.1) | | | (178.0) | | | (178.3) | | | — | | | | | $ | 129.9 | | $ | 907.7 | | $ | 337.2 | | $ | 49.8 | | $ | 0.1 | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | December 31, 2023 | | Weighted | | | | | | North | | Europe | | | | | | | | Average | | | | | American | | and Asia | | | | | | | | Amortization | | | Options | | Equities | | Pacific | | Global FX | | Digital | | Period (in years) | 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 tradenames | | | 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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