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CLEARING OPERATIONS - Clearing participant (Details) - USD ($) $ in Millions | Dec. 31, 2025 | Dec. 31, 2024
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Clearing Operations |  |
Cboe Clear Europe central bank account | $ 1,156.5 | $ 841.4
Cboe Clear Europe reverse repurchase and other | 460.5 |
Cboe Clear U.S. customer bank deposits | 1.2 | 4.1
Total cash margin deposits, clearing funds, and interoperability funds | 1,618.2 | 845.5
Cboe Clear Europe non-cash contributions | $ 949.0 | 997.4
Minimum collateralization, as a percent | 102.00% |
Margin Deposits |  |
Clearing Operations |  |
Cboe Clear Europe central bank account | $ 755.3 | 378.4
Cboe Clear Europe reverse repurchase and other | 137.1 |
Cboe Clear U.S. customer bank deposits | 1.2 | 4.1
Total cash margin deposits, clearing funds, and interoperability funds | 893.6 | 382.5
Cboe Clear Europe non-cash contributions | 601.3 | 691.4
Clearing Funds |  |
Clearing Operations |  |
Cboe Clear Europe central bank account | 146.8 | 173.7
Cboe Clear Europe reverse repurchase and other | 135.2 |
Cboe Clear U.S. customer bank deposits | 0.0 | 0.0
Total cash margin deposits, clearing funds, and interoperability funds | 282.0 | 173.7
Cboe Clear Europe non-cash contributions | 70.1 | 80.1
Interoperability Funds |  |
Clearing Operations |  |
Cboe Clear Europe central bank account | 254.4 | 289.3
Cboe Clear Europe reverse repurchase and other | 188.2 |
Cboe Clear U.S. customer bank deposits | 0.0 | 0.0
Total cash margin deposits, clearing funds, and interoperability funds | 442.6 | 289.3
Cboe Clear Europe non-cash contributions | $ 277.6 | $ 225.9

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