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金融民工阿聪 · 2022年08月18日

关于equitize

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 efciently 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.

如果用衍生去overlay,例如买股指期货,这种不会影响β导致β↑吗?为什么

1 个答案
已采纳答案

笛子_品职助教 · 2022年08月19日

嗨,努力学习的PZer你好:


如果用衍生去overlay,例如买股指期货,这种不会影响β导致β↑吗?为什么

mrt-neutral + equitize的头寸是:

股票多头

股票空头(股票多头beta 等于股票空头beta)

股指期货多头


市场中性是指做多一部分股票的同时,做空一部分股票,使股票组合的beta为0

权益化是指,通过衍生品的方式,使一个beta为0的股票portfolio,收益表现变得和股票指数一样。


具体做法是:在market nuetral的基础上,做多股指期货。

在衍生品章节,还会对equitze深入学习,权益这里只要做一般了解即可。


本质就是改变beta,把原本市场中性的beta =0,改为equitize后的beta约等于1.


最终整个组合的收益效果,就和Long了一个指数相同。


至于为何要这么做,是因为这个基金经理认为指数会上涨,他既想获得market - neutral的对冲收益,也想获得指数上涨的收益。


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