问题如下:
In the early 2000s, Jane was calculating the VAR for a technology stock fund based on data from the past three years, which has an investment strategy of buying stocks and writing out-of-the money put options. Which of the following methods results in the most inaccurate VAR values?
选项:
A.Historical simulation based on full repricing
B.Delta-normal VAR assuming zero drift
C.Monte Carlo style VAR assuming zero drift with full repricing
D.Little or no reliance on covariance matrices.
解释:
D is correct.
考点:Advantages and disadvantages of Non-parametric methods
解析:回答本题需要了解一定的历史背景。在1996-1999年,科技股呈现出上涨的泡沫,所以只依赖2000年之前三年的历史数据会低估VAR值。D最不准确。
可否详细讲解下四个选项对错的原因,谢谢!