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Betty · 2024年04月16日

why Statement 2?

NO.PZ2019012201000078

问题如下:

Which of following two statements are correct regarding on inherent limitations of Market-neutral strategies?

Statement 1: Practically speaking, it is no easy task to maintain a beta of zero.

Statement 2:Market-neutral strategies have a limited upside in a bull market unless they are “equitized.”

选项:

A.

Statement 1

B.

Statement 2

C.

Both

解释:

Market-neutral strategies have two inherent limitations:

1 Practically speaking, it is no easy task to maintain a beta of zero. Not all risks can be efficiently hedged, and correlations between exposures are continually shifting.

2 Market-neutral strategies have a limited upside in a bull market unless they are “equitized.” Some investors, therefore, choose to index their equity exposure and overlay long/short strategies. In this case, the investor is not abandoning equity-like returns and is using the market-neutral portfolio as an overlay.

Therefore, both of the statements are correct.

还是不是很理解为什么statement 2是对的

Betty · 2024年04月18日

是因为market neutral: beta=0, 然后bull market: beta>0。equitizing的话,beta=1? market neutral 的beta为0 market 的beta为1,beta是指portfolio波动与market波动的比值,如果portfolio本身就是market,则贝塔为1。 equitizing的话,beta=1。没错。股指期货的贝塔接近1,因此:做多股指期货 + market neutral ,beta非常接近1。 但这个并不代表equitization的话,beta=1吧...

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笛子_品职助教 · 2024年04月19日

嗨,努力学习的PZer你好:


是因为market neutral: beta=0, 然后bull market: beta>0。equitizing的话,beta=1? market neutral 的beta为0 market 的beta为1,beta是指portfolio波动与market波动的比值,如果portfolio本身就是market,则贝塔为1。 equitizing的话,beta=1。没错。股指期货的贝塔接近1,因此:做多股指期货 + market neutral ,beta非常接近1。 但这个并不代表equitization的话,beta=1吧...


equitization表示:market neutral + 股指期货,这个整体的组合。


market neutral beta =0

股指期货 beta =1


整体组合的beta

=market neutral beta + 股指期货 beta

= 0+1

=1。

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笛子_品职助教 · 2024年04月18日

嗨,努力学习的PZer你好:


讲义或者书上哪里有提到这部分的beta相关内容?


Hello,亲爱的同学~

在基础讲义的第230页,老师用方框标出来了。

是statement2的原句。


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努力的时光都是限量版,加油!

笛子_品职助教 · 2024年04月17日

嗨,努力学习的PZer你好:


是因为market neutral: beta=0, 然后bull market: beta>0。equitizing的话,beta=1?

market neutral 的beta为0

market 的beta为1,beta是指portfolio波动与market波动的比值,如果portfolio本身就是market,则贝塔为1。

equitizing的话,beta=1。没错。股指期货的贝塔接近1,因此:做多股指期货 + market neutral ,beta非常接近1。



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虽然现在很辛苦,但努力过的感觉真的很好,加油!

笛子_品职助教 · 2024年04月16日

嗨,从没放弃的小努力你好:


还是不是很理解为什么statement 2是对的

Hello,亲爱的同学~

market - neutral完全抵消了大盘涨跌对portfolio收益的影响。

因此当大盘是牛市的时候,market - neutral portfolio无法跟上大盘上涨的步伐。

这就是:Market-neutral strategies have a limited upside in a bull market的意思。


unless they are “equitized.”是指,除非(unless)开股指期货的多头。

如果market - neutral + 股指期货多头,则大盘牛市的时候,股指期货多头也会跟着大盘赚取收益。


同学可以这么理解:

1)如果只有market - neutral,则牛市的时候,market - neutral无法跟上牛市的步伐,上涨能力有限。

2)但如果是market - neutral + 股指期货多头,则可以跟上牛市的步伐。



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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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