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W洁 · 2020年08月29日

问一道题:NO.PZ2018062006000126 [ CFA I ]

问题如下:

A bond is priced at 88.692 per 100 of par value. The bond's full price will fall to 88.642 if the yield-to-maturity rises by 10 basis points. Moreover, the bond's full price will increase to 88.762 if the yield-to-maturity decreases by 10 basis points. The approximate convexity of the bond is:

选项:

A.

105.24.

B.

225.50.

C.

687.41.

解释:

B is correct.

Approximate convexity

=[V+V+2V0]/V0×(y)2=\left[V_-+V_+-2V_0\right]/V_0\times\left(\triangle y\right)^2

=[88.762+88.642-(2*88.692)]/[(0.001)^2*88.692]

=225.499

老师我想问一下10base points怎么折算
1 个答案

WallE_品职答疑助手 · 2020年08月29日

1 basis points 是1/10000 10 bp就是10/10000=0.001