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CLEARING OPERATIONS - Clearing participant (Details) - USD ($) $ in Millions | Jun. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Clearing Operations |  |
Cash Contributions | $ 2,437.5 | $ 1,190.6
Non-Cash Contributions | 936.9 | 645.9
Total Contributions | 3,374.4 | 1,836.5
Margin deposits |  |
Clearing Operations |  |
Cash Contributions | 1,041.7 | 319.5
Non-Cash Contributions | 744.7 | 401.0
Total Contributions | 1,786.4 | 720.5
Clearing funds |  |
Clearing Operations |  |
Cash Contributions | 146.5 | 492.6
Non-Cash Contributions | 49.1 | 69.7
Total Contributions | 195.6 | 562.3
Interoperability funds |  |
Clearing Operations |  |
Cash Contributions | 1,249.3 | 378.5
Non-Cash Contributions | 143.1 | 175.2
Total Contributions | $ 1,392.4 | $ 553.7

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