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Normy · 2023年09月28日

a选项

NO.PZ2022062601000016

问题如下:

Fund A invests in many different hedge fund strategies. The factor sensitivities for Fund A during normal conditions and crisis conditions are highlighted in Exhibit 1. At the 5% level, all exposures are significant.

Exhibit 1.

Fund A Coefficients

Bourne,the risk control director of Fund A draws the following conclusions from Exhibit 1:

Which of Bourne’s observations about Fund A is most likely accurate?

选项:

A.

Observation 1

B.

Observation 2

C.

Observation 3

解释:

C is correct. For Fund A, adding deep out-of-the-money puts during periods of market stress would explain why the correlation with equity markets is relatively neutral in normal markets but is significantly negative during periods of crisis. It also is supported by a large increase in positive correlation with volatility during periods of crisis.

A is incorrect. Fund A is unlikely to have a dedicated short bias strategy, as its sensitivity to the equity market is essentially zero except during crisis periods.

B is not correct. Fund A has a positive exposure to volatility through the VIX, especially during periods of market pressure. This does not mean that managers will sell puts against short positions.

知识点考察:Analysis of Hedge Fund Strategies

A选项,dedicated short bias是指完全做空,那么其和沪深300的系数值应该是负的。虽然normal的时候是是负的,但是-0.03,变化基本等于没有,所以与其说是dedicated short bias感觉更想EMN。所以A不对。

B选项。说是卖出期权。期权和波动率是正比,这时如果卖出期权,那么就是和波动是反比。crisis时期是高波动的,那么应该系数是小的,但是CRISIS的时候VIX的波动是增加的。所以不对。

C选项,其描述简单是说持有PUT,也就是option,还是和B解题思路一样。PUToption,与波动成正比,CRISIS的时候是高波动,所以这个时候应该系数是增加的。而表格的VIXcrisisnormal高(0.460.14),所以证明C是对的

c可以理解 但是a我认为正确在于 股票指数从原来的-0.03 增加为-0.5明显增加了short头寸

2 个答案

伯恩_品职助教 · 2023年10月09日

嗨,爱思考的PZer你好:


所以这题是看normal的情况 而不是crisis? 因为看crisis 肯定是由于股市不好 所以我看空股市 short 也没错——normal和crisis都要看。

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加油吧,让我们一起遇见更好的自己!

伯恩_品职助教 · 2023年10月07日

嗨,努力学习的PZer你好:


可以是normal的时候,-0.03s非常低,几乎等于没有,那么怎么能说其有空头呢。平常时候没有变化,危机时候其和沪深300的表现大相径庭(-0.5),说明在危机时候表现是相反的,那么PUT刚好契合,而由于是deep put,在平常的时候,由于stock变化不大,所以对deep的put影响很小,刚好符合C选项

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就算太阳没有迎着我们而来,我们正在朝着它而去,加油!

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2024-06-16 17:15 1 · 回答

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2024-05-20 16:17 1 · 回答

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2024-04-21 10:49 1 · 回答

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2024-04-06 17:52 2 · 回答

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2024-03-26 18:59 1 · 回答