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saturn44 · 2022年04月23日

官网69题

虽然asset的market value大于liability,但是没有超过10%的阈值,可以用active management?


Puhuyesva’s approach matches the interest rate sensitivity of the asset portfolio to that of the liabilities. If she has reasonably strong beliefs about how interest rates will change in the near future and the surplus exceeds her threshold of 10% of assets, she will adjust the interest rate sensitivity of the asset portfolio to attempt to increase the surplus. She typically uses derivatives positions to adjust the asset portfolio’s interest rate sensitivity, rather than buying and selling securities.

Puhuyesva believes interest rates will fall over the next three months and wants to position the asset portfolio accordingly. She intends to use futures contracts on the 10-year Treasury bond. The three-month contract has a par value of USD100,000 and a basis point value of USD102.30 per contract. Exhibit 1 provides current information about the asset and liability portfolios.


The most appropriate action given Puhuyesva’s views on interest rates and the information in Exhibit 1 would be to buy:

  1. 492 contracts.
  2. 614 contracts.
  3. 552 contracts.


2 个答案

发亮_品职助教 · 2022年04月26日

嗨,从没放弃的小努力你好:


the surplus exceeds her threshold of 10% of assets, 是要计算surplus大于现有资产的10%? 即21.72million?


是的,threshold门槛定位10%的Asset,就是21.72 million

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虽然现在很辛苦,但努力过的感觉真的很好,加油!

发亮_品职助教 · 2022年04月25日

嗨,爱思考的PZer你好:


虽然asset的market value大于liability,但是没有超过10%的阈值,可以用active management?


不行的,Surplus需要先大于设定的阈值才能使用active management。

如下图原版书标黄部分,要大于Threshold才可用active。这个Treshold阈值可以是0,即Surplus =0就可以使用active,或者像这道题一样,规定了阈值是10%,那就必须surplus要先大于等于10%才能使用active。




所以这道题应该选552份会比较合理,这个份数恰好够fully-hedge,依然是passive的immunization,这个份数没有Active的成份在。


但是这道题的答案却是614份,应该是表格里面的Market value数据没给对,这道题是想考查的Contingent immunization Overhedge的考点。这道题了解一下就行,出题不太严谨。

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努力的时光都是限量版,加油!

saturn44 · 2022年04月25日

the surplus exceeds her threshold of 10% of assets, 是要计算surplus大于现有资产的10%? 即21.72million?

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