To further improve your capital efficiency, OKX will lower the maintenance margin requirement to calculate the options maintenance margin. Effective time: 08:00 on Mar 3, 2022. The following MMR change will be applied to isolated margin as well as the cross-margin mode in single-currency and multi-currency margin accounts. The MMR calculation for options in portfolio margin mode will remain unaffected. MMR Now After Underlyings BTC and ETH options BTC options ETH options Short call 7.5% × Margin factor + Mark price 3% × Margin factor + Mark price 5% × Margin factor + Mark price Short put max × Margin factor + Mark price max × Margin factor + Mark price max × Margin factor + Mark price The margin factor is referenced in the position tier table. You can refer to options margin for the detailed options margin calculation. . OKX. Mar 2, 2023 . .