When the user’s position is at level 3 or above, if the margin ratio of the position is lower than the required margin ratio and closing fee rate for the current position, but still higher than the minimum margin ratio and closing fee rate, the user’s entire position will not be forcibly balanced. The system will calculate the number of reduced positions required to lower the position by two levels and perform a partial reduction. After successful downshifting, if the margin ratio meets the maintenance margin ratio requirements for the new level, partial reduction of positions will be stopped; If the requirement for maintaining the margin ratio for the new level is still not met, the partial reduction process will continue to circulate.