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?
选项:
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.
本题的考点是否为讲义549页的公式?是的话公式中的standard deviation的平方为什么可以忽略?