I think you can mitigate a lot of the time and volatility risk by trading on margin, i.e. buy coin on one side and sell on the other. You can still get called

I think you can mitigate a lot of the time and volatility risk by trading on margin, i.e. buy coin on one side and sell on the other. You can still get called on either side but the risk should be smaller. [edit] change bitcoin to coin