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aileen20180623 · 2024年04月06日

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NO.PZ202401170100001006

问题如下:

The specialist hedge fund strategy that Mukilteo plans to recommend is most likely

选项:

A.cross-asset volatility trading between the US and Japanese markets. B.selling equity volatility and collecting the volatility risk premium. C.buying longer-dated out-of-the-money options on VIX index futures

解释:

C is correct. Mukilteo needs to recommend a specialist hedge fund strategy that can help PWPF maintain a high Sharpe ratio even in a crisis when equity markets fall. Buying longer-dated out-of-the-money options on VIX index futures is a long equity volatility position that works as a protective hedge, particularly in an equity market crisis when volatility spikes and equity prices fall. A long volatility strategy is a useful potential diversifier for long equity investments (albeit at the cost of the option premium paid by the volatility buyer). Because equity volatility is approximately 80% negatively correlated with equity market returns, a long position in equity volatility can substantially reduce the portfolio’s standard deviation, which would serve to increase its Sharpe ratio. Longer-dated options will have more absolute exposure to volatility levels (i.e., vega exposure) than shorter-dated options, and out-of-the-money options will typically trade at higher implied volatility levels than at-the-money options.

请问这个题目是啥意思?为啥选C。为啥不选b,哪里的考点

1 个答案

pzqa35 · 2024年04月07日

嗨,爱思考的PZer你好:


M想要在推荐一个专家策略,这个策略在市场下跌的时候仍然能够维持一个高的sharp ratio,那么这里有一个隐含条件就是市场下跌,波动性也会变得更高。所以这个问题最终就变成了一个需要在波动率变高的时候能够表现好的策略,也就是long volatility的策略。

A选项中,这个人并不是要利用两个市场的波动率不同进行套利,所以是错误的。

B选项是一个short volatility,从而赚取premium的一个策略,也就相当于是卖保险,所以跟我们的头寸刚好是相反的。

C选项中说的是买一个VIX index futures,这是一个long volatility的操作,因为VIX本身代表的就是波动率,long VIX futures也就是获得一个long volatility的头寸。

这个是volatility trading中的考点,是指实现long volatility的路径之一。

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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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