I.    Index Price

The index price is an important reference for perpetual futures trading and calculation of the mark price. 

1. Calculation of Index Price

To reduce the risk of price manipulation in a single market, index prices on AscendEX Futures are calculated based on the average of the spot prices from exchanges such as Binance, HTX, OKX , Poloniex, and AscendEX, excluding the highest and lowest prices.

2.How to Check Index Prices?

Check on the futures trading page of PC：

 

II.  Mark Price

The mark price is an estimation of the fair price of the perpetual futures. To improve the stability of the futures market and reduce unnecessary forced liquidations due to market impact, AscendEX’s perpetual futures use the mark price to calculate the unrealized PnL of an account and as the basis for forced liquidation.

Note: The mark price only affects unrealized PnL and the liquidation price, and does not impact realized PnL. 

1. Calculation of Mark Price

Mark price = Index price + Price Premium

Price Premium = (Time-weighted average of market prices - Time-weighted average of reference prices) / Funding interval.

2. How to Check Mark Price?

Check on the futures trading page of PC：