for now, if I short cny, I use double value BTS as collateral, borrow CNY to buy BTS.
this means I think BTS price will increase against CNY.
but If I think SHENZHEN's price will increase against CNY, what can I do?
first I need to short CNY, I use double value BTS as collateral and sell out CNY.
second, I need to sell BTS to get SHENZHEN, hedge the risk of BTS against CNY.
this is very complex, so I have suggest to improve it.
I can use double value BTS as collateral, and sell out CNY for SHENZHEN directory.
the command like:
short 1000 BTS as CNY to BID SHENZHEN.
then, all short should collateral BTS. you can short CNY for SHENZHEN, or short SHENZHEN for CNY.
I don't like the idea to use CNY as collateral, because CNY is not enough to use as collateral,
it need to use as cover order, or for payment.