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Re:Show HN: Collateralized Debt Agreements Using Smart Contr... by mccoyspace on Thursday January 18, 2018 @07:52PM (#16183142)
Similar to what is required for bitcoin futures on cboe
Re:Show HN: Collateralized Debt Agreements Using Smart Contr... by whatok on Friday January 19, 2018 @06:42AM (#16185501)
CBOE margin requirements are nowhere near that. 40-44% depending on what kind of client as of 01-17-18.

http://cfe.cboe.com/margins/cfe-margins