一、引言亚式期权是近年来出现的一种新型期权,最初是由一家美国的信托公司在日本推出的,现被广泛应用于风险管理领域,投机领域。亚式期权主要分为四种:一、标的资产算术平均,执行价格固定;二、标的资产几何平均,执行价格固定;三、标的资产为到期时的价格,执行价格几何平均;四、标的资产为到期时价格,执行价格为几何平均。亚式期权的到期日收益取决于期权合同期内股价的高低,根据合同期内股价的平均价格来决定是否执行合同,因而和欧式期权只能在到期日执行合同 I. Introduction Asian option is a new type of option emerging in recent years. It was originally launched by a U.S. trust company in Japan and is widely used in the field of risk management and speculation. Asian options are mainly divided into four types: First, the arithmetic average of the underlying assets, the implementation of a fixed price; Second, the underlying asset geometric mean, the implementation of a fixed price; Third, the underlying asset is the maturity of the price, the geometric execution of the price; Fourth, Assets are due when the price, the implementation of the geometric mean price. Maturity of Asian options returns depends on the level of the stock price during the contract period, according to the average price of the stock price during the contract period to decide whether to execute the contract, and European options can only be executed on the expiration date of the contract