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DEBT (Tables) | 9 Months Ended
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Sep. 30, 2025
Debt Disclosure [Abstract] |
Schedule of Debt | The Company’s debt consisted of the following as of September 30, 2025 and December 31, 2024 (in millions):
| September 30, 2025 |  | December 31, 2024
$650 million fixed rate Senior Notes due January 2027, stated rate of 3.650% | $ | 649.1 |  |  | $ | 648.6 |
$500 million fixed rate Senior Notes due December 2030, stated rate of 1.625% | 496.1 |  |  | 495.5 |
$300 million fixed rate Senior Notes due March 2032, stated rate of 3.000% | 297.2 |  |  | 296.9 |
Revolving Credit Agreement | — |  |  | — |
Cboe Clear Europe Credit Facility | — |  |  | — |
Total debt | $ | 1,442.4 |  |  | $ | 1,441.0 |
Schedule of Future Expected Repayments Related to Senior Notes | The future expected repayments related to the Senior Notes as of September 30, 2025 are as follows (in millions):
Remainder of 2025 | $ | — |
2026 | — |
2027 | 650.0 |
2028 | — |
2029 | — |
Thereafter | 800.0 |
Principal amounts repayable | 1,450.0 |
Debt issuance costs | (4.4) |
Unamortized discounts on notes | (3.2) |
Total debt outstanding | $ | 1,442.4 |
Schedule of Interest Expense, Net | Components of interest expense, net recognized in the condensed consolidated statements of income for the three and nine months ended September 30, 2025 and 2024 are as follows (in millions):
| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2025 |  | 2024 |  | 2025 |  | 2024
Components of interest expense: |  |  |  |  |  |  |
Contractual interest | $ | 12.7 |  |  | $ | 12.2 |  |  | $ | 37.2 |  |  | $ | 36.8 |
Amortization of debt discount and issuance costs | 0.6 |  |  | 0.6 |  |  | 1.8 |  |  | 1.8 |
Interest expense | $ | 13.3 |  |  | $ | 12.8 |  |  | $ | 39.0 |  |  | $ | 38.6 |
Interest income | (14.3) |  |  | (11.4) |  |  | (34.0) |  |  | (20.1) |
Interest (income) expense, net | $ | (1.0) |  |  | $ | 1.4 |  |  | $ | 5.0 |  |  | $ | 18.5 |

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