BTCUSD is a perpetual contract, which never expires. Each contract is worth the Quantity of BTC bought/sold.
The BTCUSD contract’s underlying price is the Overbit Index. This is dynamically weighted over several exchanges. The weighting of each exchange is determined by the size of the order book for the price quoted at the time. BTCUSD is quoted in USD. Margin and PnL calculations are denominated in Bitcoin.
The interest rate on funding is different each day and is published in the interest rates section. The funding is paid at 01:00UTC, 09:00UTC, 17:00UTC, 3 times a day. If the interest rate is positive Long positions pay and Short positions get paid. If interest rates are negative, Long positions get paid and Short positions pay.
|Initial Margin||(1 x Quantity) / Leverage + Spread^|
|Maintenance Margin||(1 x Quantity) / Leverage|
|PnL Calculation||(Exit Price – Entry Price) x Quantity / Mid-Price at Exit^^|
|Funding Rate||See Funding|
|Funding Interval||01:00UTC, 09:00UTC, 17:00UTC|
|Settlement||BTC, quoted in USD|
|Available Leverage||2x - 50x|
|Contract Size||Quantity of BTC x Price|
|Pricing Method||Market Aggregation|
^ Spread = Buy Price – Sell Price.
^^ Mid-Price at Exit = (Buy Price + Sell Price)/2 at the time of exiting the position.