You can hold whatever you want as collateral! Works for spot margin, works for futures.
Fuck it, you can margin trade ETH/BTC using TSLA as collateral if you really want ;)
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Replying to @SBF_FTX and @SBF_Alameda
I don't want to hold spot ETH.
Does using BTC instead of USD solve that?
You already allow BTC as collateral for all other contracts
How would futures differ from the ETH?BTC spot pair?
12
4
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