[junhyun82]

The exchange does but you have to earn it.

Example

So lets say you have a 10,000 USD perp call position on BTC. You are levered (lets say 10x). You suddenly get rekt because of some news. Your PnL is -10,000 USD with the DEX and we will give you USD 10,000 exchange credit at the end of the month. The following month when you trade, you can earn back the credit to withdraw by having at least USD 10,000 positive PnL. There is not limit to how much you use to trade so if you are a whale, you can have a 100K position and earn 10% which would allow you to get you to realize your USD 10,000.

[sna1l]

What if they keep losing more money every month?

[junhyun82]

So using the example above. You lost USD 10,000 and you get USD 10,000 Credit that you have to earn out. You happen to face bad luck and a series of bad trading decisions. Instead of earning USD 10,000, you actually lose USD 2000 more. The next month, the USD 2000 is credited given the period to earn back the USD 10,000 has lapsed and now you have a chance to earn back USD 2,000.