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v3.25.1

DEBT - Schedule of Long-term Debt (Details) - USD ($) $ in Millions | Mar. 31, 2025 | Dec. 31, 2024 | Mar. 16, 2022 | Dec. 15, 2020 | Jan. 12, 2017
--- | --- | --- | --- | --- | ---
Debt Instrument |  |  |  |  |
Total debt | $ 1,441.5 | $ 1,441.0 |  |  |
Line of Credit | Revolving Credit Agreement |  |  |  |  |
Debt Instrument |  |  |  |  |
Total debt | 0.0 | 0.0 |  |  |
Line of Credit | Cboe Clear Europe Credit Facility |  |  |  |  |
Debt Instrument |  |  |  |  |
Total debt | 0.0 | 0.0 |  |  |
3.650% Senior Notes |  |  |  |  |
Debt Instrument |  |  |  |  |
Debt instrument face amount | $ 650.0 | $ 650.0 |  |  | $ 650.0
Interest rate (as a percent) | 3.65% | 3.65% |  |  | 3.65%
3.650% Senior Notes | Senior Notes |  |  |  |  |
Debt Instrument |  |  |  |  |
Total debt | $ 648.8 | $ 648.6 |  |  |
1.625% Senior Notes |  |  |  |  |
Debt Instrument |  |  |  |  |
Debt instrument face amount | $ 500.0 | $ 500.0 |  | $ 500.0 |
Interest rate (as a percent) | 1.625% | 1.625% |  | 1.625% |
1.625% Senior Notes | Senior Notes |  |  |  |  |
Debt Instrument |  |  |  |  |
Total debt | $ 495.7 | $ 495.5 |  |  |
3.000% Senior Notes |  |  |  |  |
Debt Instrument |  |  |  |  |
Debt instrument face amount | $ 300.0 | $ 300.0 | $ 300.0 |  |
Interest rate (as a percent) | 3.00% | 3.00% | 3.00% |  |
3.000% Senior Notes | Senior Notes |  |  |  |  |
Debt Instrument |  |  |  |  |
Total debt | $ 297.0 | $ 296.9 |  |  |

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