问题如下:
Li, a fixed-income analyst in a wealth management firm, anticipates that the curvature of the yield curve will increase over the next 6-month. Based on this expectation, Li wants to build a duration-neutral condor strategy by using the US government bond. The maximum position the portfolio can take on the 30-year bond is $200 million. The relevant information for the condor strategy is shown below:
According to the information above, the amount that Li should allocate to the 10-year bond is:
选项:
A.$483.77 million
B.$48377 million
C.$2.41million
解释:
A is correct.
考点:考察Condor策略
解析:题干已知Li预测收益率曲线的曲度会增加,并且Li需要采取的是Condor策略。在曲度增加时,应该short中期债券,long长、短两端债券。已知Li要构建的是Duration-neutral的Condor策略,并且在30年期最大头寸是$200million。已知30年期债券的PVBP是2310 per million。因此30年期的long头寸增加的Duration为:
200 × 2310 = 462,000
因此10年期债券最多可以Short: 462,000 / 955 = 483.77 million
PVBP = duration * MV * 1bps;
其中已经考虑了MV,为什么这里还要用它计算?我认为用给出的duration计算岂不更好,直接用money duration = MV * duration, 所得结果是一样的。
这里PVBP正好是duration的100倍,是因为乘了1million, duration * 1,000,000 * 1/10,000,所以这是个特例,其它题的PVBP都是与duration不同的。
所以,解答中直接用PVBP*MV,很有误导性。建议更正,谢谢。