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Lucy · 2020年03月17日

问一道题:NO.PZ2020021203000112 [ FRM I ]

问题如下:

What is the put-call parity relation between the following compound options: call on a call and a put on a call?

解释:

We use the notation in the chapter and assume that the K1, K2, T1, and T2 are the same for both the call on the call and the put on the call. A long position in the call on a call plus the present value of K1 (with discounting from T1 to today) equals a long position in a put on the call plus the value of a European call maturing at time T2 . If c1 is the value at time T1 of a European call maturing at time T2, the result can be seen from:

max(c1 - K1, 0) + K1 = max(K1 - c1, 0)+ c1 = max(c1, K1)

老师,题目没有读懂,可以讲解一下题目及解答吗?
1 个答案
已采纳答案

品职答疑小助手雍 · 2020年03月17日

同学你好,这题其实只是把S这个 标的物当做一个call(c1),重新写了一下C+K1=P+S,只不过C和P是用取值方法表示的。

感觉……不会这么考吧,挺无聊的。

Lucy · 2020年03月25日

明白了,谢谢老师