Refers to the value of multiple contracts-the absolute value of an empty contract does not exceed 200% of the planned net value (in general, it is the total equity). For example, the customer's total capital is 6.5438+0 million, and more than 600,000 bonds are occupied, which is 6 million bonds according to the general bond ratio of 654.38+00%; The margin occupation of 200,000 empty orders is 2 million empty orders, and the difference between long and short contracts is 600-200/100 = 4 *100% = 400%.