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Angela · 2021年04月06日

问一道题:NO.PZ2019010402000009 [ CFA II ]

问题如下:

A dealer entered into a three-year interest rate swap with annual payments one year ago as a floating receiver. The current equilibrium fixed swap rate is 1.4853% (one year after the swap was originally entered). The initial swap rate is 1.82% and notional principle is $100 million.The value of this swap is:

选项:

A.

-670,598

B.

656,338

C.

-656,338

解释:

C is correct.

考点:interest swap 求value

解析:

Present Value Factor 1 = 11+1%×360360=0.990099\frac1{1+1\%\times\frac{360}{360}}=0.990099 

Present Value Factor 2 = 11+1.5%×720360=0.970874\frac1{1+1.5\%\times\frac{720}{360}}=0.970874

Ÿ投资者之前的合约是收浮动,付固定,现在进入反向合约,即收固定,付浮动。浮动端可以抵消,剩下的就是收新的固定利率,付之前合约中约定的swap rate。

Ÿ向上箭头:current equilibrium fixed swap rate,也就是以现在的市场条件签订一个到期日相同的合约的swap rate,它等于1.4853%。而且我们注意到,这是一个均衡的swap rate。Swap rate即固定利率,它可以看成是市场中浮动利率的打包价。所谓均衡就是说是无套利情况下计算出来的固定利率,即与interest swap rate的定价是一样的,就算题目没有告诉我们current equilibrium fixed swap rate,我们也能计算:

 10.9708740.990099+0.970874=1.4853%\frac{1-0.970874}{0.990099+0.970874}=1.4853\%

Ÿ 每一期的差额=1.4853%-1.82%(最后一期的本金相互抵消),然后向前折现,折现因子已经求出,分别为0.990099和0.970874,所以:(1.4853%1.82%)×(0.990099+0.970874)×100,000,000=656,338(1.4853\%-1.82\%)\times(0.990099+0.970874)\times100,000,000=-656,338  

老师,我画的现金流如下图,不太明白为什么后两年的float rate也是1.4853%, 为啥不是libor 1%和1.5%? 以及present factor用的利率,都是spot rate是吗?如果往合约开始第一年折现,用来算present factor的利率是1.4853%对吧?

1 个答案
已采纳答案

WallE_品职答疑助手 · 2021年04月07日

嗨,爱思考的PZer你好:


同学您好,老师真的很为你着急,你这样不理解的去做题,真的会挂掉的。我知道您说过没时间,但您这样一知半解的去做题效率是非常的低的,而且花的时间不比听课少,更主要的是二级可不像一级一样,一级不理解思路,没有系统框架照样可以过,二级行不通的。


swap rate是互换利率是分子,spot rate是折现率,也就是分母,spot rate一般是固定利率,而这里是用浮动利率来折现,因此用的是libor。


这里您没有理解重新定价法,和老师讲的画图法的区别

解析中用重新定价法,如下图:

如果用李老师介绍的画图法,则如下图:


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就算太阳没有迎着我们而来,我们正在朝着它而去,加油!

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NO.PZ2019010402000009问题如下 A aler entereinto a three-yeinterest rate swwith annupayments one yeago a floating receiver. The current equilibrium fixeswrate is 1.4853% (one yeafter the swworiginally entere. The initiswrate is 1.82% annotionprinciple is $100 million.The value of this swis: A.-670,598B.656,338C.-656,338 C is correct.考点interest sw求value解析Present Value Factor 1 = 11+1%×360360=0.990099\frac1{1+1\%\times\frac{360}{360}}=0.9900991+1%×360360​1​=0.990099 Present Value Factor 2 = 11+1.5%×720360=0.970874\frac1{1+1.5\%\times\frac{720}{360}}=0.9708741+1.5%×360720​1​=0.970874Ÿ投资者之前的合约是收浮动,付固定,现在进入反向合约,即收固定,付浮动。浮动端可以抵消,剩下的就是收新的固定利率,付之前合约中约定的swrate。Ÿ向上箭头current equilibrium fixeswrate,也就是以现在的市场条件签订一个到期日相同的合约的swrate,它等于1.4853%。而且我们注意到,这是一个均衡的swrate。Swrate即固定利率,它可以看成是市场中浮动利率的打包价。所谓均衡就是说是无套利情况下计算出来的固定利率,即与interest swrate的定价是一样的,就算题目没有告诉我们current equilibrium fixeswrate,我们也能计算 1−0.9708740.990099+0.970874=1.4853%\frac{1-0.970874}{0.990099+0.970874}=1.4853\%0.990099+0.9708741−0.970874​=1.4853%Ÿ 每一期的差额=1.4853%-1.82%(最后一期的本金相互抵消),然后向前折现,折现因子已经求出,分别为0.990099和0.970874,所以(1.4853%−1.82%)×(0.990099+0.970874)×100,000,000=−656,338(1.4853\%-1.82\%)\times(0.990099+0.970874)\times100,000,000=-656,338(1.4853%−1.82%)×(0.990099+0.970874)×100,000,000=−656,338 题干写的是收浮方,为啥说进入了反向合约。

2024-09-15 12:44 1 · 回答

NO.PZ2019010402000009 问题如下 A aler entereinto a three-yeinterest rate swwith annupayments one yeago a floating receiver. The current equilibrium fixeswrate is 1.4853% (one yeafter the swworiginally entere. The initiswrate is 1.82% annotionprinciple is $100 million.The value of this swis: A.-670,598 B.656,338 C.-656,338 C is correct.考点interest sw求value解析Present Value Factor 1 = 11+1%×360360=0.990099\frac1{1+1\%\times\frac{360}{360}}=0.9900991+1%×360360​1​=0.990099 Present Value Factor 2 = 11+1.5%×720360=0.970874\frac1{1+1.5\%\times\frac{720}{360}}=0.9708741+1.5%×360720​1​=0.970874Ÿ投资者之前的合约是收浮动,付固定,现在进入反向合约,即收固定,付浮动。浮动端可以抵消,剩下的就是收新的固定利率,付之前合约中约定的swrate。Ÿ向上箭头current equilibrium fixeswrate,也就是以现在的市场条件签订一个到期日相同的合约的swrate,它等于1.4853%。而且我们注意到,这是一个均衡的swrate。Swrate即固定利率,它可以看成是市场中浮动利率的打包价。所谓均衡就是说是无套利情况下计算出来的固定利率,即与interest swrate的定价是一样的,就算题目没有告诉我们current equilibrium fixeswrate,我们也能计算 1−0.9708740.990099+0.970874=1.4853%\frac{1-0.970874}{0.990099+0.970874}=1.4853\%0.990099+0.9708741−0.970874​=1.4853%Ÿ 每一期的差额=1.4853%-1.82%(最后一期的本金相互抵消),然后向前折现,折现因子已经求出,分别为0.990099和0.970874,所以(1.4853%−1.82%)×(0.990099+0.970874)×100,000,000=−656,338(1.4853\%-1.82\%)\times(0.990099+0.970874)\times100,000,000=-656,338(1.4853%−1.82%)×(0.990099+0.970874)×100,000,000=−656,338 投资者之前的合约是收浮动,付固定,现在进入反向合约,即收固定,付浮动。浮动端可以抵消,剩下的就是收新的固定利率,付之前合约中约定的swrate。,哪里题目体现了所谓的反向?用画图法怎么计算呢,reset节点为什么不加F(360)

2024-08-21 23:04 1 · 回答

NO.PZ2019010402000009 问题如下 A aler entereinto a three-yeinterest rate swwith annupayments one yeago a floating receiver. The current equilibrium fixeswrate is 1.4853% (one yeafter the swworiginally entere. The initiswrate is 1.82% annotionprinciple is $100 million.The value of this swis: A.-670,598 B.656,338 C.-656,338 C is correct.考点interest sw求value解析Present Value Factor 1 = 11+1%×360360=0.990099\frac1{1+1\%\times\frac{360}{360}}=0.9900991+1%×360360​1​=0.990099 Present Value Factor 2 = 11+1.5%×720360=0.970874\frac1{1+1.5\%\times\frac{720}{360}}=0.9708741+1.5%×360720​1​=0.970874Ÿ投资者之前的合约是收浮动,付固定,现在进入反向合约,即收固定,付浮动。浮动端可以抵消,剩下的就是收新的固定利率,付之前合约中约定的swrate。Ÿ向上箭头current equilibrium fixeswrate,也就是以现在的市场条件签订一个到期日相同的合约的swrate,它等于1.4853%。而且我们注意到,这是一个均衡的swrate。Swrate即固定利率,它可以看成是市场中浮动利率的打包价。所谓均衡就是说是无套利情况下计算出来的固定利率,即与interest swrate的定价是一样的,就算题目没有告诉我们current equilibrium fixeswrate,我们也能计算 1−0.9708740.990099+0.970874=1.4853%\frac{1-0.970874}{0.990099+0.970874}=1.4853\%0.990099+0.9708741−0.970874​=1.4853%Ÿ 每一期的差额=1.4853%-1.82%(最后一期的本金相互抵消),然后向前折现,折现因子已经求出,分别为0.990099和0.970874,所以(1.4853%−1.82%)×(0.990099+0.970874)×100,000,000=−656,338(1.4853\%-1.82\%)\times(0.990099+0.970874)\times100,000,000=-656,338(1.4853%−1.82%)×(0.990099+0.970874)×100,000,000=−656,338 RT

2024-05-04 14:48 1 · 回答

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2024-04-14 11:30 1 · 回答

NO.PZ2019010402000009 问题如下 A aler entereinto a three-yeinterest rate swwith annupayments one yeago a floating receiver. The current equilibrium fixeswrate is 1.4853% (one yeafter the swworiginally entere. The initiswrate is 1.82% annotionprinciple is $100 million.The value of this swis: A.-670,598 B.656,338 C.-656,338 C is correct.考点interest sw求value解析Present Value Factor 1 = 11+1%×360360=0.990099\frac1{1+1\%\times\frac{360}{360}}=0.9900991+1%×360360​1​=0.990099 Present Value Factor 2 = 11+1.5%×720360=0.970874\frac1{1+1.5\%\times\frac{720}{360}}=0.9708741+1.5%×360720​1​=0.970874Ÿ投资者之前的合约是收浮动,付固定,现在进入反向合约,即收固定,付浮动。浮动端可以抵消,剩下的就是收新的固定利率,付之前合约中约定的swrate。Ÿ向上箭头current equilibrium fixeswrate,也就是以现在的市场条件签订一个到期日相同的合约的swrate,它等于1.4853%。而且我们注意到,这是一个均衡的swrate。Swrate即固定利率,它可以看成是市场中浮动利率的打包价。所谓均衡就是说是无套利情况下计算出来的固定利率,即与interest swrate的定价是一样的,就算题目没有告诉我们current equilibrium fixeswrate,我们也能计算 1−0.9708740.990099+0.970874=1.4853%\frac{1-0.970874}{0.990099+0.970874}=1.4853\%0.990099+0.9708741−0.970874​=1.4853%Ÿ 每一期的差额=1.4853%-1.82%(最后一期的本金相互抵消),然后向前折现,折现因子已经求出,分别为0.990099和0.970874,所以(1.4853%−1.82%)×(0.990099+0.970874)×100,000,000=−656,338(1.4853\%-1.82\%)\times(0.990099+0.970874)\times100,000,000=-656,338(1.4853%−1.82%)×(0.990099+0.970874)×100,000,000=−656,338 这是啥考点?为啥进入方向对冲合约,哪里写的?

2024-04-13 20:20 1 · 回答