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Belinda Von · 2024年08月09日

为什么说本题使用波动率因子来选股? 可否进一步解释一下downside risk?

* 问题详情,请 查看题干

NO.PZ202207040100001006

问题如下:

Which comment by Parker regarding factor-based approaches is most accurate? The comment regarding:

选项:

A.

value factor funds.

B.

single-factor funds.

C.

fundamental weighting.

解释:

B is correct. Relative to cap weighting, single-factor funds concentrate risk exposure to the characteristics of the factor used.

A is incorrect. Value factor funds focus on valuation measures, not volatility.

C is incorrect. Fundamental weighting’s intended advantage is overweighting stocks priced below intrinsic value and underweighting overpriced stocks.

  1. 为什么说本题使用波动率因子来选股? 请问是因为题干里面的这句话吗? 可否详细描述一下解题思路?
  2. value factor funds seek to lower downside risk 这句话是正确的吗? 老师可否进一步解释一下downside risk?


1 个答案

笛子_品职助教 · 2024年08月09日

嗨,努力学习的PZer你好:


为什么说本题使用波动率因子来选股? 请问是因为题干里面的这句话吗? 可否详细描述一下解题思路?

value factor funds seek to lower downside risk 这句话是正确的吗? 老师可否进一步解释一下downside risk?

Hello,亲爱的同学~

这道题问:

  • fundamental weighting can enhance return, but when compared with intrinsic values, it has the disadvantages of overweighting overpriced stocks and underweighting underpriced stocks;


  • value factor funds seek to lower downside risk; and


  • relative to cap weighting, single-factor funds tend to concentrate risk exposure.”

这三句话里哪个是对的。


答案选single-factor funds.,不选value factor funds。

因此:value factor funds seek to lower downside risk 这句话是不正确的。

downside risk是指下行风险,portfolio收益下降这一段的波动率。


本题说使用passive factor - based 方法选股。

这个passive factor可以是波动率,也可以是其他因子,没有说一定是波动率因子。

无论用哪个因子,对比cap weighting,passive factor - based 都存在concentrate risk exposure。

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