NO.PZ2020021205000043
问题如下:
A delta-neutral portfolio has a gamma of -20. The price of the underlying asset suddenly increases by USD 3. Estimate what happens to the value of the portfolio. What difference does it make if the price of the underlying asset suddenly decreases by USD 3?
解释:
The USD value of the portfolio will change by: 1/2X (-20) X 3^2= -90
The change in the value of the portfolio is the same if the value of the underlying asset decreases by USD 3.
讲义里没有讲这个公式,需要掌握吗?是否能够明确一下课上没讲的东西你们题里又出现到底是考纲要求的还是没要求的?遇到很多了