问题如下:
On 1 October 20X0, Steve, a fixed income analyst, is reviewing three corporate bonds issued by Pro Star, Inc. These 3 bonds are fixed-rate bonds.
According to the information above, a fall in interest rates would cause
选项:
A. A decrease in the effective duration of Bond Z.
B. Bond Z having more upside potential than Bond Y.
C. a change in the effective convexity of Bond Z from positive to negative.
解释:
B is correct.
考点:对含权债券的理解
解析:
A 、 C两个选项的描述 , 是当利率下降时 , Callable bond的特征 , 即Bond Y的特征 。 当利率下降时 , Callable bond的价格上升幅度有限 , 因为Callable bond存在价格顶 ( 赎回价 ) , 因此当利率下降时 , 其Effective duration较小 ; 而对于Putable bond , 当利率下降时 , 其表现和普通不含权债券Option-free bond ) 一样 , 因此A选项错误 ; 对于putable bond没有negative convexity的特性 , 因此C选项错误 。 C选项描述的特征实际上是对于Callable bond , 在利率下跌时的特征 。
您好,可以解释下callable 债券negative convexity的特性么?