NO.PZ2018062007000083
问题如下:
Based on put–call parity, which of the following combinations results in a synthetic long asset position?
选项:
A.A long call, a short put, and a long bond
A short call, a long put, and a short bond
C.A long call, a short asset, and a long bond
解释:
A is correct. One can synthetically create a long asset position by buying a call, shorting a put, and buying a bond.
B is incorrect because combining a short call and a short bond with the right to sell (not buy) another asset via a long put could not result in a new synthetic long asset position.
C is incorrect because combining a long call, a short asset, and a long bond creates a long put, not a synthetic long asset.
中文解析:
本题考查put-call parity
c+k=p+s
变形得s=c+k-p
正号为long,负号代表short
如何理解asset position?