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胖大恺 · 2024年07月27日

Autland Quantitative Case Scenario

Timmon then asks Richard why holdings-based attribution can generate a residual term between the portfolio performance and benchmark performance. Richard responds that the residual term cannot be explained by an action taken by the fund manager, but it could result from transactions occurring more frequently than the holdings assessments for the fund.

Richard’s answer with respect to holdings-based attribution is best described as:


A.

correct.


B.

incorrect in regard to the fund manager’s action affecting the residual term.


C.

incorrect in regard to the frequency of measuring holdings relative to transactions.


这题解答帮忙解释一下


这个考点在讲义哪个部分提及了?

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已采纳答案

吴昊_品职助教 · 2024年07月29日

嗨,从没放弃的小努力你好:


本题对应的是:Richard responds that the residual term cannot be explained by an action taken by the fund manager, but it could result from transactions occurring more frequently than the holdings assessments for the fund.

这里的residual是指归因的偏差,即holding based attribution的缺点。由于Holding base只是针对某个时间点的holding做研究,该时间点之前之后 holding 的改变(turnover)无法得知,也就是说只适合于little turnover的情况。所以一旦turnover变大,那么holding就会不准,就会造成偏差。所以交易的频繁,就会造成residual。这就是原文的意思。所以原文这句话的表述完全正确。

本题考察的是holdings-based attribution的特点和优缺点,可以参考基础班讲义P102页。

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虽然现在很辛苦,但努力过的感觉真的很好,加油!

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