ABD. Analysis of the number of futures contracts bought and sold = total spot value/(futures index points × multipliers per point )× β coefficient. Among them, the "futures index point × multiplier per point" in the formula is actually the value of a futures contract. It is not difficult to see from the formula that the number of futures contracts to be bought and sold is related to the size of β coefficient when the total spot value and futures contract value are determined, and the larger the β coefficient, the more futures contracts are needed; On the contrary, the less.