OKEX Futures uses a "full account clawback" system to calculate the clawback rate. The system's margin call losses from all three contracts will merged and clawbacks will be calculated according to each user's entire account profit, instead of calculating each contract's margin call loss and clawback separately. Only users that have a net profit across all three contracts for that week will be subject to clawbacks. Clawbacks will only occur if the insurance fund does not have enough funds to cover the system's total margin call losses.
Example: A user has a 10BTC profit in the weekly contract, and 8BTC losses in the quarterly contract. According to the old system, when the weekly contract was delivered and clawbacks were calculated, the final clawback on the weekly contract could exceed the account's total profit of 2BTC (10BTC-8BTC). Under the 'full account clawback' system, the clawbacks will be calculated according to the account's total profit at time of delivery (10BTC-8BTC) so that the clawback value cannot exceed 2BTC.
Clawback rate = margin call losses for all users across all contracts / total account profit for all profitable users across all contracts * 100%