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CLEARING OPERATIONS - Clearing participant (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Clearing Operations
Cash Contributions	$ 906.3	$ 1,169.2
Non-Cash Contributions	466.1	421.5
Total Contributions	1,372.4	1,590.7
Margin deposits
Clearing Operations
Cash Contributions	426.9	600.0
Non-Cash Contributions	338.2	287.0
Total Contributions	765.1	887.0
Clearing funds
Clearing Operations
Cash Contributions	103.4	145.9
Non-Cash Contributions	38.6	41.9
Total Contributions	142.0	187.8
Interoperability funds
Clearing Operations
Cash Contributions	376.0	423.3
Non-Cash Contributions	89.3	92.6
Total Contributions	$ 465.3	$ 515.9

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