问题如下图:
选项:
A.
B.
C.
解释:
这一题的callable bonds折现为什么不是用二叉树法?不太懂答案中的折现方法。101.55/1.01中的分子,为什么不是100呢?不是called at par 吗?
吴昊_品职助教 · 2019年03月14日
二叉树里面的都是本节点到下一个节点的One-year forward rate,只不过二叉树里这个Forward rate存在不同的可能。而我们这里就是单一的情况,也就是forward rate是确定的一个数值,不存在两种情况而已。其实原理都是一样的。
由于是callable bond,所以我们要考虑的是债券在将来是否会行权,从最后一年开始往前折现,并比较一下每个时点是否触发了行权价。如果债券的折现值大于赎回价,说明触发了行权,发行人可以以行权价赎回,所以这时候就要把债券在第二年年末的现金流调整到债券的行权价100。但是一定还要加上第二年的coupon(1.5),所以是100+1.55=101.55,而非100。
cindyfo · 2020年03月08日
请问这里为什么不考虑volatility了呢?
吴昊_品职助教 · 2020年03月08日
其实这道题就是假设volatility为0,因此只存在单一的情况,forward rate不存在不同的可能。
NO.PZ2018123101000086 问题如下 Exhibit 1 shows par, spot, anone-yeforwarrates.Bon4 is a fixeRate Bon of Alpha Corporation, with 1.55% annucoupon ancallable pwithout any lockout perio. The bonmaturity is 3 years.Baseon the information above, the value of the embeeoption in Bon4 is closest to: A.nil. B.0.1906. C.0.8789. C is correct.考点考察对含权债券的理解解析债券4是可Callable。其价值为Value of callable bon= value of straight bon– value of call option on bon此,Embeecall option的价值为Value of call option on bon= Value of straight bon– Value of callable bon用Spot rate对该Straight bon行定价为1.55(1.0100)1+1.55(1.012012)2+101.55(1.012515)3=100.8789\frac{1.55}{{(1.0100)}^1}+\frac{1.55}{{(1.012012)}^2}+\frac{101.55}{{(1.012515)}^3}=100.8789(1.0100)11.55+(1.012012)21.55+(1.012515)3101.55=100.8789无赎回保护期的可赎回债券的价值不能超过100,因此call option的价值为=100.8789–100=0.8789。 解析里Call option的Value是100.8789-100=0.8789,但是提问中回答是100.8789-100.5446=0.3343,哪种算法才是正确的呢?
NO.PZ2018123101000086 问题如下 Exhibit 1 shows par, spot, anone-yeforwarrates.Bon4 is a fixeRate Bon of Alpha Corporation, with 1.55% annucoupon ancallable pwithout any lockout perio. The bonmaturity is 3 years.Baseon the information above, the value of the embeeoption in Bon4 is closest to: A.nil. B.0.1906. C.0.3343. C is correct.考点考察对含权债券的理解解析债券4是可Callable。其价值为Value of callable bon= value of straight bon– value of call option on bon此,Embeecall option的价值为Value of call option on bon= Value of straight bon– Value of callable bon用Spot rate对该Straight bon行定价为1.55(1.0100)1+1.55(1.012012)2+101.55(1.012515)3=100.8789\frac{1.55}{{(1.0100)}^1}+\frac{1.55}{{(1.012012)}^2}+\frac{101.55}{{(1.012515)}^3}=100.8789(1.0100)11.55+(1.012012)21.55+(1.012515)3101.55=100.8789而Callable bon定价需要使用1-yeforwarrate,将债券的现金流从最后一期开始,依次向前一个节点折现,以判断折现值是否会触发行权价;使用表格中的Forwarrate对Callable bon行定价因此Call option的Value为100.8789-100.5446=0.3343 相同的题目编号,NO.PZ201712110200000304这道题的题解The value of a callable bon(par) with no call protection periocannot excee100, thprior higher the bonwoulcallet=0时刻也能call
NO.PZ2018123101000086 问题如下 Exhibit 1 shows par, spot, anone-yeforwarrates.Bon4 is a fixeRate Bon of Alpha Corporation, with 1.55% annucoupon ancallable pwithout any lockout perio. The bonmaturity is 3 years.Baseon the information above, the value of the embeeoption in Bon4 is closest to: A.nil. B.0.1906. C.0.3343. C is correct.考点考察对含权债券的理解解析债券4是可Callable。其价值为Value of callable bon= value of straight bon– value of call option on bon此,Embeecall option的价值为Value of call option on bon= Value of straight bon– Value of callable bon用Spot rate对该Straight bon行定价为1.55(1.0100)1+1.55(1.012012)2+101.55(1.012515)3=100.8789\frac{1.55}{{(1.0100)}^1}+\frac{1.55}{{(1.012012)}^2}+\frac{101.55}{{(1.012515)}^3}=100.8789(1.0100)11.55+(1.012012)21.55+(1.012515)3101.55=100.8789而Callable bon定价需要使用1-yeforwarrate,将债券的现金流从最后一期开始,依次向前一个节点折现,以判断折现值是否会触发行权价;使用表格中的Forwarrate对Callable bon行定价因此Call option的Value为100.8789-100.5446=0.3343 老师,二叉树求债券时,二叉树的利率都是forwarrate对吗?
NO.PZ2018123101000086 问题如下 Exhibit 1 shows par, spot, anone-yeforwarrates.Bon4 is a fixeRate Bon of Alpha Corporation, with 1.55% annucoupon ancallable pwithout any lockout perio. The bonmaturity is 3 years.Baseon the information above, the value of the embeeoption in Bon4 is closest to: A.nil. B.0.1906. C.0.3343. C is correct.考点考察对含权债券的理解解析债券4是可Callable。其价值为Value of callable bon= value of straight bon– value of call option on bon此,Embeecall option的价值为Value of call option on bon= Value of straight bon– Value of callable bon用Spot rate对该Straight bon行定价为1.55(1.0100)1+1.55(1.012012)2+101.55(1.012515)3=100.8789\frac{1.55}{{(1.0100)}^1}+\frac{1.55}{{(1.012012)}^2}+\frac{101.55}{{(1.012515)}^3}=100.8789(1.0100)11.55+(1.012012)21.55+(1.012515)3101.55=100.8789而Callable bon定价需要使用1-yeforwarrate,将债券的现金流从最后一期开始,依次向前一个节点折现,以判断折现值是否会触发行权价;使用表格中的Forwarrate对Callable bon行定价因此Call option的Value为100.8789-100.5446=0.3343 用forwarrate给含权债券估值是考纲内容吗?对应基础班讲义哪个位置?
NO.PZ2018123101000086 问题如下 Exhibit 1 shows par, spot, anone-yeforwarrates.Bon4 is a fixeRate Bon of Alpha Corporation, with 1.55% annucoupon ancallable pwithout any lockout perio. The bonmaturity is 3 years.Baseon the information above, the value of the embeeoption in Bon4 is closest to: A.nil. B.0.1906. C.0.3343. C is correct.考点考察对含权债券的理解解析债券4是可Callable。其价值为Value of callable bon= value of straight bon– value of call option on bon此,Embeecall option的价值为Value of call option on bon= Value of straight bon– Value of callable bon用Spot rate对该Straight bon行定价为1.55(1.0100)1+1.55(1.012012)2+101.55(1.012515)3=100.8789\frac{1.55}{{(1.0100)}^1}+\frac{1.55}{{(1.012012)}^2}+\frac{101.55}{{(1.012515)}^3}=100.8789(1.0100)11.55+(1.012012)21.55+(1.012515)3101.55=100.8789而Callable bon定价需要使用1-yeforwarrate,将债券的现金流从最后一期开始,依次向前一个节点折现,以判断折现值是否会触发行权价;使用表格中的Forwarrate对Callable bon行定价因此Call option的Value为100.8789-100.5446=0.3343 这什么原理?不用二叉树也能求含权bon格了吗?怎么没印象课上讲过?