刘同学2020-01-27 19:21:22
01.单选题 收藏 标记 纠错 A call option with a strike price of 60 will expire in 80 days. No cash payments will be made by the underlying asset over the life of the option. If the underlying asset price is 70 and the risk-free rate of return is 5.0 percent, the lower bound for an American call option and a European call option, respectively, are closest to A the lower bound for an American call option is 10; the lower bound for a European call option is 10.64. B the lower bound for an American call option is 10.64; the lower bound for a European call option is 10. C the lower bound for an American call option is 10.64; the lower bound for a European call option is 10.64. 这个题啥也听不见,麻烦老师讲解
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Danyi2020-01-31 18:47:43
同学你好,
这道题问我们的是美式和欧式看涨期权的lower bound分别是多少。
我们知道 payoff of European call option=Max(0, St-X), St-X = 70-60/1.05^(80/365)=10.64, 所以Max(0, St-X)=Max(0, 10.64)=10.64
同样条件下,美式看涨期权它不会提前行权,所以两者一样
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对了,这里有个不明白的地方,美式看涨期权为什么不会提前行权,?美式按理说不是灵活性更强吗


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