Calculation of contract‘s profit and loss
1. Single-currency margin: Selected margin
In single-currency margin mode, X-Perps support both Hedge mode and One-way mode
(1)Hedge mode
(2)One-way mode
| Term | Definition |
| Total | For the One-way mode, the total of long positions is a positive number, and the total of short positions is a negative number. |
| Avail. | Only shown in Hedge mode Avail. = total positions – positions of pending close orders |
| P&L | Unrealized profit or loss of current position (1) Coin-margined X-Perps swap P&L of long positions = face value * |number of contracts|* multiplier * (1 / avg. open price – 1 / mark price) P&L of short positions = face value * |number of contracts| * multiplier * (1 / mark price – 1 / avg. open price) (2) USD-margined X-Perps swapP&L of long positions = face value * |number of contracts| * multiplier * (mark price – avg. open price) P&L of short positions = face value * |number of contracts| * multiplier * (avg. open price - mark price) |
| P&L ratio | P&L/initial margin |
| Initial margin | 1） Coin-margined X-Perps swap Initial margin = face value * |number of contracts| * multiplier / (mark price * leverage)2） USD-margined X-Perps swap Initial margin = face value * |number of contracts| * multiplier * mark price / leverage |
| Maintenance margin | 1） Coin-margined X-Perps swap Maintenance margin = face value * |number of contracts| * multiplier * maintenance margin ratio / mark price2） USD-margined X-Perps swapMaintenance margin = face value * |number of contracts| * multiplier * maintenance margin ratio * mark price |
2. Multi-currency margin mode
Under the multi-currency margin mode, X-Perps support both Hedge and One-way mode
| Term | Definition |
| Total | For the One-way mode, the total of long positions is a positive number, and the total of short positions is a negative number. |
| Avail. | Only shown under Hedge mode Avail. = Total – Positions of pending close orders |
PnL |
Unrealized profit and loss of current positions (1) Crypto-margined X-Perps swap PnL of long positions = Face value * |Number of contracts| * Multiplier * (1/Avg. open price – 1/Mark price) PnL of short positions = Face value * |Number of contracts| * Multiplier * (1/Mark price – 1/Avg. open price) (2) USD margined X-Perps swap PnL of long positions = Face value * |Number of contracts| * Multiplier * (Mark price – Avg. open price) PnL of short positions = Face value * |Number of contracts| * Multiplier * (Avg. open price – Mark price) |
| PnL ratio | PnL/Position-opening margin |
| Initial margin | (1) Crypto-margined X-Perps swap Initial margin = Face value * |Number of contracts| * Multiplier / (Mark price * leverage) (2) USD-margined X-Perps swap Initial margin = Face value * |Number of contracts| * Multiplier * Mark price / Leverage |
| Maintenance margin | (1) Crypto-margined X-Perps swap Maintenance margin = Face value * |Number of contracts| * Multiplier * Maintenance margin ratio / Mark price (2) USD margined X-Perps swap Maintenance margin = Face value * |Number of contracts| * Multiplier * Maintenance margin ratio * Mark price |
3. The isolated mode of Single/Multi-currency margin
In isolated margin mode, X-Perps support both Hedge mode and One-way mode
| Term | Definition |
| Total | For the One-way mode, the total of long positions is a positive number, and the total of short positions is a negative number. |
| Avail. | Only shown in Hedge mode Avail. = total – positions of pending close orders |
| P&L | Unrealized profit or loss of current position(1)Coin-margined X-Perps swapP&L of long positions = face value * |contracts| * multiplier * (1 / avg. open price – 1 / mark price)P&L of short positions = face value * |contracts| * multiplier * (1 / mark price – 1 / avg. open price)(2)USD-margined X-Perps swapP&L of long positions = face value * |contracts| * multiplier * (mark price – avg. open price)P&L of short positions = face value * |contracts| * multiplier * (avg. open price – mark price) |
| P&L ratio | P&L/initial margin |
| liquidation price | (1)Coin-margined X-Perps swapLong positions: Est. liquidation price = face value * |number of contracts| * (maintenance margin ratio + fee rate + 1) / (margin balance + face value * |number of contracts| / avg. open price)Short positions: Est. liquidation price = face value * |number of contracts| * (maintenance margin ratio + fee rate - 1) / (margin balance - face value * |number of contracts| / avg. open price)(2)USD-margined X-Perps swapLong positions: Est. liquidation price = (margin balance - face value * |number of contracts| * avg. open price) / [face value * |number of contracts| * (maintenance margin ratio + fee rate - 1)]Short positions: Est. liquidation price = (margin balance + face value * |number of contracts| * avg. open price) / [face value * |number of contracts| * (maintenance margin ratio + fee rate + 1)] |
| Margin balance | Initial margin + margin added to or reduced from this position |
| Maintenance margin | (1)Coin-margined X-Perps swapMaintenance margin = face value * |number of contracts| * multiplier * maintenance margin ratio / mark price(2)USD-margined X-Perps swapMaintenance margin = face value * |number of contracts| * multiplier * maintenance margin ratio * mark price |
| Margin level | (Margin balance + P&L) / [position value * (maintenance margin ratio + fee rate)] (1) Coin-margined X-Perps swap Margin level = （margin balance + P&L）/ [face value * |number of contracts| / mark price * (maintenance margin ratio + fee rate)] (2) USD-margined X-Perps swap Margin level = （margin balance + P&L）/ [face value * |number of contracts| * mark price * (maintenance margin ratio + fee rate)] |
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