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FRM一级
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The measurement error in VaR due to sampling variation should be greater with:Fewer observations and a high confidence level(e.g. 99%) 老师您好!我想问一下为什么置信度水平越高越容易有偏差?置信度水平很高,区间也就很大,这样包含正确的VaR值的可能性就会增加,为什么这里说更可能有误?
查看试题 已解决Consider a stock portfolio consisting of two stocks with normally distributed returns. The joint distribution of daily returns is constant over time and there is no serial correlation. Stock Epsilon has a market value of $100,000 with an annualized volatility of 22%. Stock Omega has a market value of $175,000 with an annualized volatility of 27%. Calculate the 95% confidence interval 1-day VaR of the portfolio. Assume a correlation coefficient of 0.3. Round to the nearest dollar assuming 252 business days in a year. The daily expected return is assumed to be zero. 老师您好!这道题能不能用视频里的方法讲一下?就是分别求出VaR1=Zα×σ×Pa,VaR2=Zα×σ×Pb,然后使用VaRp^2 = VaR1^2 + VaR2^2 + 2×ρ×VaR1×VaR2
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