OKX reserves the right to adjust one or more of the applicable ratio requirements at any time, on a case-by-case basis, and in OKX's full discretion: Initial MR% Withdrawal MR% Margin Call MR% Liquidation MR% Category 1 40% 40% 30% 15% Category 2 50% 50% 35% 15% Category 3 80% 80% 50% 15% Category 4 100% 100% 70% 15% The above rules apply unless otherwise stated in any agreement between you and OKX.

MMR = Sum of USD value of each risk unit derivatives MMR + Borrowing MMR Derivatives MMR = Max {[Max (Spot shock, Theta decay risk, Extreme move) + Basis risk + Vega risk + Interest rate risk + Stablecoin depegging risk], Adjusted minimum charge} mmr Initial margin requirement (IMR) 1.3 × MMR Risk factor (MR) Derivative margin calculates 7 risks (MR1-6 and MR9) by stress testing the portfolio under a specific set of market conditions of each risk unit, and then applying a minimum charge (MR7).