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乐高 · 2025年04月06日

考点

NO.PZ2023040601000029

问题如下:

Following the investment committee’s approval, Patterson references the updated risk management policy in her quarterly letter to investors. She states: “At Citadel, we take risk management very seriously. In response to recent investor concerns about volatility in our multi-asset fund, we have implemented a new policy. We limit fund losses to 2% of assets with a 99% level of confidence, with additional measures to limit total losses to 3% over a rolling 30-dayperiod.”

Patterson’s comments to Citadel’s investors are least likely accurate with regard to her:

选项:

A.

use of confidence levels.

B.

discussion of limiting losses.

C.

implied percentage declines from dollar VaR limits.

解释:

VaR is an expression of a minimum loss. It is incorrect for Patterson to state that the policy will limit fund losses to 2% ($10 million ÷ $500 million) over a 5-dayperiod. In practice, the maximum loss possible in an unleveraged portfolio is the entire value of the portfolio.

老师,能帮忙解释一下这题考的是什么吗?然后为啥选B呢?谢谢

1 个答案

品职助教_七七 · 2025年04月07日

嗨,爱思考的PZer你好:


本题考察VaR的定义,A的描述是VaR中的置信区间、C的描述就是换个角度去说VaR,都没有问题。

B选项中的“limiting loss”不对。VaR不可能限制住风险,无论VaR是多少,理论上一个组合的损失都是100%。不可能limit to 3%。

 

本题为有讲解的经典题。如果整体不知道讲的是什么,可直接听讲解。如对于讲解仍有不理解处,可就不理解处后续具体提问。

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虽然现在很辛苦,但努力过的感觉真的很好,加油!

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