In comparing as above exemple, if expire by December when, this market index is actual it is 1130 bits, you can get 30 price difference of the dot are compensated, that is to say you earned 30 to nod.

• 比如上例中，假如12月底到期时，这个市场指数实际是1130点，你就可以得到30个点的差价补偿，也就是说你赚了30个点。