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shashankar · 2023年12月07日

课后作业

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NO.PZ202001200500001602

问题如下:

Six months after the forward contract in Q1 was entered into, the spot price is USD 56 and the risk-free rate is still 5% per year. What is the (a) forward price and (b) value of the forward contract?

选项:

解释:

The forward price is 561.050.5=57.38356 * 1.05^{0.5} = 57.383.

The value of the forward contract is

57.38352.51.050.5=4.77\frac{57.383-52.5}{1.05^{0.5}}=4.77

A one-year forward contract to buy a non-dividend-paying stock is entered into when the stock price is USD 50 and the risk-free rate is 5% per year (with annual compounding).

FP0=52.5


Six months after the forward contract in Q1 was entered into, the spot price is USD 56 and the risk-free rate is still 5% per year. What is the (a) forward price and (b) value of the forward contract?


问题:为什么是57.383-52.5,而不是57.383-56

1 个答案
已采纳答案

品职答疑小助手雍 · 2023年12月07日

同学你好,因为forward price其实在第一问那个1年期,50块钱,年化rf=5%的时候已经确定了等于52.5了。

这个Q2其实问的是半年后(市场价格变化且只剩半年的情况下),forward price会变成多少。以及第一问那个forward的价值。

第一问的forward是以52.5交易的,所以其价值就是目前理论上forward price减去原始forward的price再折现。