NO.PZ2016070201000097
问题如下:
Given the following bond portfolios:
Which of the following statements is correct?
选项:
A.Portfolio 1 is a barbell portfolio.
B.Portfolio 2 is a bullet portfolio.
C.It is impossible for Portfolios 1 and 2 to have the same duration.
D.Portfolio 2 will have greater convexity than Portfolio 1.
解释:
考点:Bond Valuation
解析:Portfolio 1是bullet portfolio,因为10年期债券(中期)贡献3.95最大。Portfolio 2是barbell portfolio,因为5年期和20年期(短、长期)债券贡献最大。所以AB错。
Portfolio duration for 1:1.32+1.37+3.95+1.51=8.15,
Portfolio duration for 2:0.52+3.18+1.05+3.40=8.15.
所以Portfolios 1 和2有相同的duration,C选项错。
D选项,Portfolio 2在长期和短期的债券贡献最大,所以convexity相比1来的大。
是不是现金流越分散convexity 越大呢?