期权是一种权利 ,是期权的买方从期权的卖方购买的一种权利 ,具有明显的收益性和风险性。卖方 ,又称期权的立权人 ,授予期权买方的权利 ,相应换回一定量的货币 ,即权酬 ,又称期权价格。当一项期权授予买方 ,从卖方购买特定工具的权利时 ,该期权称为看涨期权 ,当期权的买方将权 An option is a right, a right purchased by the buyer of the option from the seller of the option, with obvious profitability and risk. The seller, also known as the holder of the option, grants the right of the buyer of the option, and accordingly repurchases a certain amount of money, namely the right payment, also known as the option price. When an option gives the buyer the right to buy a particular instrument from a seller, the option is called a call option and when the buyer of the option