Difference Between Mark Price and Last Price
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To avoid spikes and unnecessary forced liquidations during periods of high volatility, BKEX contracts synchronize with Binance by using the last price and mark price.
The last price refers to the most recent transaction price of the contract. In other words, the last trade in the transaction record determines the last price. It is used to calculate your realized profit and loss (gains and losses).
As for the mark price, it is calculated based on funding data and a basket of price data from multiple spot exchanges. Your liquidation price and unrealized profit and loss are calculated based on the mark price.