袁同学2020-09-01 10:08:08
put 的价格是在资产价格变高、还是变低的时候,put 的价格会更高? or put option, the delta will underestimate the price effect of decrease in the underlying equity and will overestimate the price effect of increase in the underlying equity. this is due to the convex relationship between put option prices and the price of the underlying equity .this can be addressed by adjusting the put option price for the effect of gamma,which is analogous to the convexity adjustment of a bonds’ price. 这段话应该怎么理解?
回答(1)
Chris Lan2020-09-01 10:26:57
同学你好
put是在标的资产价格越低的时候,越有可能行权,所以是资产价格变低,put的价值越高。
另外这句英文的意思就是二阶导数的意思,标的资产价格变动,带来put option的价格变动有涨多跌少的效果,这就是gamma的含义。
对于option的gamma的含义与bond与convexity的含义是一样的,都是涨多跌少的意思。
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