Profit/Loss (P/L) ter margin trading on Bitfinex is always lodged te the last symbol of a pair.
If you open a long , you buy BTC using margin funding (USD), if the price rises you sell the BTC and realized P/L, which equals [amount] * ( [sell price] – [buy price]) , will be for you to keep, which will be USD (or to pay if you realized a loss).
If you open a brief , you sell BTC (your own BTC + margin funding BTC) and when the price drops, you buy them back to close the position. [Amount] * ( [buy price] – [sell price]) will be for you to keep, which will be ter USD (or to pay if you realized a loss). This is again te USD, spil you will have a bit of USD to spare ter order to buy back the BTC previously sold at a higher price.
If you only want to hold BTC after closing a margin trade, you will need to by hand exchange USD profits into BTC using the BTC/USD pair by highlighting “Exchange” te the Order Form opbergruimte on the trading pagina.