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CLEARING OPERATIONS - Clearing participant (Details) - USD ($) $ in Millions | Jun. 30, 2024 | Dec. 31, 2023
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Clearing Operations |  |
Cboe Clear Europe central bank account | $ 1,674.5 | $ 772.4
Cboe Clear Europe reverse repurchase and other | 1,049.3 | 62.4
Cboe Clear Digital customer bank deposits | 5.0 | 14.0
Total cash margin deposits, clearing funds, and interoperability funds | 2,728.8 | 848.8
Cboe Clear Europe non-cash contributions | 907.8 | 930.6
Margin deposits |  |
Clearing Operations |  |
Cboe Clear Europe central bank account | 1,146.2 | 361.3
Cboe Clear Europe reverse repurchase and other | 728.4 | 2.7
Cboe Clear Digital customer bank deposits | 5.0 | 14.0
Total cash margin deposits, clearing funds, and interoperability funds | 1,879.6 | 378.0
Cboe Clear Europe non-cash contributions | 522.2 | 637.0
Clearing funds |  |
Clearing Operations |  |
Cboe Clear Europe central bank account | 173.8 | 140.1
Cboe Clear Europe reverse repurchase and other |  | 4.1
Total cash margin deposits, clearing funds, and interoperability funds | 173.8 | 144.2
Cboe Clear Europe non-cash contributions | 80.4 | 65.6
Interoperability funds |  |
Clearing Operations |  |
Cboe Clear Europe central bank account | 354.5 | 271.0
Cboe Clear Europe reverse repurchase and other | 320.9 | 55.6
Total cash margin deposits, clearing funds, and interoperability funds | 675.4 | 326.6
Cboe Clear Europe non-cash contributions | $ 305.2 | $ 228.0

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