NO.PZ2023091901000050
问题如下:
A risk manager is evaluating a portfolio of equities
with an annual volatility of 12.1% per year that is benchmarked to the Straits
Times Index. If the risk-free rate is 2.5% per year, based on the regression
results given in the chart below, what is the Jensen's alpha of the portfolio?
选项:
A.0.4936%
0.5387%
1.2069%
3.7069%
解释:
Excess Return on Portfolio=0.4936×Excess Return on Market + 3.7069.
The Jensen's alpha is equal to the y-intercept, or the
excess return of the portfolio when the excess market return is zero. Therefore
it is 3.7069%.
The Jensen's alpha is equal to the y-intercept, 这是不是就是Jensen alpha的定义。题干里面其他的条件都是干扰项,其实没有用的?从题干来看,不太能看出应该从哪里入手