NO.PZ2018123101000088
问题如下:
Smith and Carter review par, spot, and one-year forward rates (Exhibit 1) and four fixed-rate investment-grade bonds issued by Alpha Corporation which are being considered for investment (Exhibit 2).
Note: All bonds in Exhibit 2 have remaining maturities of exactly three years
Smith also states that he recently read a report issued by Brown and Company forecasting that the yield curve could invert within the next six months.
If the Brown and Company forecast comes true, which of the following is most likely to occur? The value of the embedded option in:
选项:
A.Bond 3 decreases.
B.Bond 4 decreases.
C.both Bond 3 and Bond 4 increases.
解释:
A is correct.
考点:考察利率变动对含权债券的影响
解析:
题干预测的是未来收益率曲线倒挂 , 即短期收益率高于长期收益率 。 收益率曲线由当前的Normal状态 ( 短期低于长期 ) 变为Inverted状态 ( 短期高于长期 ) 。 对于一个倒挂的收益率曲线 , 其forward rate是向下倾斜的 , 即Forward rate是逐渐降低的 ; 在这种情况下 , 会增加Callable bond中Call option的价值 , 因为发行人非常有可能在利率下跌的情况下提前赎回Callable bond 。 因此Bond 4 ( Callable ) 的Embedded option价值增加 。 在利率降低的情况下 , Putable bond不会被行权 , 因此Bond 3(Putable bond)的Embedded option价值降低 。 因此选择A 。
题目中说在未来的6个月,收益率曲线会倒挂,则短期r增加,长期r下降。又因为只是在6个月内发生,所以短期r的影响应该更大。所以put option 增加,call option减少。且putable bond实在每一年执行一次,callable是没有任何锁定期,所以6个月内产生的影响对putable来说更少,不就2次嬴政应该是bond4 callablebond decrease,选项B正确么?为什么答案说是选项A正确?我觉得答案的解析是有问题的。