As shown in the figure, if you purchase a subscription contract with an exercise price of 2.5000, the 50etf option is 5 1 13 yuan+handling fee; If you buy a put contract with an exercise price of 2.5000, the 50etf option is 5 yuan+transaction fee. Therefore, the amount of 50etf options depends on the contract you choose. In addition, Bian Xiao, a financial option, suggests that you invest in 50etf options and choose physical contracts as far as possible, and try to avoid choosing virtual contracts, especially deep virtual contracts.