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天天天儿 · 2024年06月30日

50bp不算什么偏离吧

* 问题详情,请 查看题干

NO.PZ201812020100000201

问题如下:

Which approach to its total return mandate is the fund’s domestic bond portfolio most likely to use?

选项:

A.

Pure indexing

B.

Enhanced indexing

C.

Active management

解释:

B is correct.

The domestic bond portfolio’s return objective is to modestly outperform the benchmark. Its risk factors, such as duration, are to closely match the benchmark. Small deviations in sector weights are allowed, and tracking error should be less than 50 bps year. These features are typical of enhanced indexing.

题眼是small deviation吗?但50bp这么小的偏离程度居然构不成full replication吗?

1 个答案
已采纳答案

发亮_品职助教 · 2024年07月01日

嗨,从没放弃的小努力你好:


是的,文字描述的话full replication要求是完全模拟,基本没有偏离。因为在full replication的情况下,要求tracking error和active return都是等于0,即,portfolio与benchmark没有任何偏离。


题干的下面这句话已经说明了是enhanced indexing,因为他说整个策略是要追求比benchmark高25bps的收益,这已经是outperform benchmark的要求了,属于enhanced indexing的目标:

specifies a long-term return objective of 25 basis points (bps) over the benchmark index


如果是full replication这种完全模拟的方法,那他的收益目标是等于benchmark,尽可能模拟benchmark的收益,而不是试图超过。

因为在full replication下,benchmark买什么债券,portfolio就跟着买什么,benchmark的权重配比如何,portfolio就跟着模拟,在理想状态下,portfolio能够获得的收益就是benchmark的收益,不存在outperform。考虑到full replication时,实际portfolio还存在管理费和交易成本,所以即便portfolio是fully track benchmark,但他的return也会比benchmark低一些。


题干下面这句说,有一些small deviation,并且tracking error要求控制在50bps的范围内。这也进一步证明是enhanced indexing。因为如果是full replication的话,是不允许出现deviation的,且理想状态下的tracking error要求是等于0。本题题干说的small deviation以及较小的tracking error可以证明是enhanced indexing:

small deviations in sector weightings are permitted, such risk factors as duration must closely match, and tracking error is expected to be less than 50 bps per year.

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