User Tutorial
How it works?
Perp Shield differs from Aster Perpetual Futures, offering an easier, faster, and more streamlined trading experience. Users can trade more quickly and find it simpler to operate and start trading. Below are some guidelines to get started with Perp Shield:
Long：Indicating an uptrend. If users expect the price to increase, they can select LONG as the direction. Users will then gain profit when the price rises.
Short：Indicating a downtrend. If users expect the price to decrease, they can select SHORT as the direction. Users will then gain profit when the price drops.
Leverage：The minimum leverage supported in Perp Shield is 20x, while the highest leverage is 1001x. The higher the chosen leverage, the greater the risk.
Funding Rate: The Funding Rate is calculated hourly. It may be adjusted based on market performance;
Note:
The higher the leverage of the positions, the greater the risk. Users will be charged a funding fee if they hold a position for more than 1 hour. The funding rate and funding fee, which users pay to (or receive from) traders on the opposite side of the trade, depend on market conditions.
To maintain market stability, if a user's profit from a single position trading pair exceeds 50,000 USDT, the system will automatically close the position for the user. After settling without any issues, the system will release the profit funds to the user.
Calculation of Profit and Loss (PNL), Return on Equity (ROE), and Liquidation Price
PNL= Size of position * (Mark Price - Entry Price) * Direction
Size of position = Initial Margin * Leverage / Entry Price
If the position direction is LONG, the calculation of position direction will be 1, whereas if the position direction is SHORT, the calculation of position direction will be -1
ROE% = PNL/ Initial MarginFor example: If the last price of BTCUSDT now is 26.250 USDT and the user would like to go LONG, user places an initial margin of 5 USDT with 200x leverage and an entry price of 26,266 USDT.
Unrealized PNL = (5*200/26,266) *(26,250 - 26,266) = - 0.6091 USDT
ROE% = - 0.6091/5 = -12.18%
Forced Liquidation Price = (Position Size * Open Price - Accumulated Funding Rate - Initial Margin * Liquidation. Lost Rate) / Position Size * Position Direction
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