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@_@ · 2020年10月05日

问一道题：NO.PZ2016031001000069 [ CFA I ]

问题如下：

Bond G, described in the exhibit below, is sold for settlement on 16 June 2014.

Annual Coupon 5%

Coupon Payment Frequency Semiannual

Interest Payment Dates 10 April and 10 October

Maturity Date 10 October 2016

Day Count Convention 30/360

Annual Yield-to-Maturity 4%

The full price that Bond G will settle at on 16 June 2014 is closest to:

选项：

A.

102.36.

B.

103.10.

C.

103.65.

解释：

B is correct.

The bond’s full price is 103.10. The price is determined in the following manner:As of the beginning of the coupon period on 10 April 2014, there are 2.5 years (5semiannual periods) to maturity. These five semiannual periods occur on 10 October2014, 10 April 2015, 10 October 2015, 10 April 2016 and 10 October 2016.

$PV=\frac{PMT}{{(1+r)}^1}+\frac{PMT}{{(1+r)}^2}+\frac{PMT}{{(1+r)}^3}+\frac{PMT}{{(1+r)}^4}+\frac{PMT+FV}{{(1+r)}^5}$

where:

PV = present value

PMT = coupon payment per period

FV = future value paid at maturity, or the par value of the bond

r = market discount rate, or required rate of return per period

$PV=\frac{2.5}{{(1+0.02)}^1}+\frac{2.5}{{(1+0.02)}^2}+\frac{2.5}{{(1+0.02)}^3}+\frac{2.5}{{(1+0.02)}^4}+\frac{2.5\text{+}100}{{(1+0.02)}^5}$

PV = 2.45 + 2.40 + 2.36 + 2.31 + 92.84 = 102.36

The accrued interest period is identified as 66/180. The number of days between10April2014 and 16 June 2014 is 66 days based on the 30/360 day count convention. (This is 20days remaining in April + 30 days in May + 16 days in June = 66 days total). The number of days between coupon periods is assumed to be 180 days using the 30/360 day convention.

$PV^{Full}=PV\times{(1\text{ }+r)}^{66/180}$

$PV^{Full}=\text{ }102.36\times{(1.02)}^{66/180}=\text{ }103.10$

老师，我是算的AI=（66/180）x2.5算出来103.28为什么不能这么算，要用复利的方式算

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WallE_品职答疑助手 · 2020年10月06日

因为时间点不一样。

102.36是未来五笔现金流折到2014.4.10的现值之和，然后再将这个数值复利到2014年6.16。103.10是full price，扣减掉AI=(66/180)*(5/2)=0.92，clean price=103.10-0.92=102.18

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NO.PZ2016031001000069 问题如下 BonG, scribein the exhibit below, is solfor settlement on 16 June 2014.AnnuCoupon 5%Coupon Payment Frequen SemiannualInterest Payment tes 10 April an10 OctoberMaturity te 10 October 2016y Count Convention 30/360AnnuYielto-Maturity 4%The full prithBonG will settle on 16 June 2014 is closest to: A.102.36. B.103.10. C.103.65. B is correct.The bons full priis 103.10. The priis terminein the following manner:of the beginning of the coupon perioon 10 April 2014, there are 2.5 years (5semiannuperio) to maturity. These five semiannuperio occur on 10 October2014, 10 April 2015, 10 October 2015, 10 April 2016 an10 October 2016. PV=PMT(1+r)1+PMT(1+r)2+PMT(1+r)3+PMT(1+r)4+PMT+FV(1+r)5PV=\frac{PMT}{{(1+r)}^1}+\frac{PMT}{{(1+r)}^2}+\frac{PMT}{{(1+r)}^3}+\frac{PMT}{{(1+r)}^4}+\frac{PMT+FV}{{(1+r)}^5}PV=(1+r)1PMT+(1+r)2PMT+(1+r)3PMT+(1+r)4PMT+(1+r)5PMT+FVPV=2.5(1+0.02)1+2.5(1+0.02)2+2.5(1+0.02)3+2.5(1+0.02)4+2.5+100(1+0.02)5PV=\frac{2.5}{{(1+0.02)}^1}+\frac{2.5}{{(1+0.02)}^2}+\frac{2.5}{{(1+0.02)}^3}+\frac{2.5}{{(1+0.02)}^4}+\frac{2.5\text{+}100}{{(1+0.02)}^5}PV=(1+0.02)12.5+(1+0.02)22.5+(1+0.02)32.5+(1+0.02)42.5+(1+0.02)52.5+100PV = 2.45 + 2.40 + 2.36 + 2.31 + 92.84 = 102.36The accrueinterest periois intifie66/180. The number of ys between10April2014 an16 June 2014 is 66 ys baseon the 30/360 y count convention. (This is 20ys remaining in April + 30 ys in M+ 16 ys in June = 66 ys total). The number of ys between coupon perio is assumeto 180 ys using the 30/360 y convention.PVFull=PV×(1 +r)66/180PV^{Full}=PV\times{(1\text{ }+r)}^{66/180}PVFull=PV×(1 +r)66/180PVFull= 102.36×(1.02)66/180= 103.10PV^{Full}=\text{ }102.36\times{(1.02)}^{66/180}=\text{ }103.10PVFull= 102.36×(1.02)66/180= 103.10考点flpri full price解析首先，我们将未来五笔现金流折现到2014.4.10，得到现值之和为102.36。N=5，PMT=2.5，I/Y=2，FV=100，求得PV=102.36然后再将这个数值复利到2014.6.16，得到full price为103.10，故B正确。我们之所以没有直接将未来五笔现金流折到2014.6.16，是因为五笔现金流的时间间隔不同，后面四笔现金流时间间隔是半年，而从6.16到10.10之间并不是半年。因此现金流就不是一个年金的形式，我们就没有办法用计算器直接求PV了。为什么要用半年期的利率来把4月10号的PV折算到6月16号。也就是，为什么是用半年期对应的（1+2%）^(66/180)，而不是用annual的数据，（1+4%）^(66/360)

2024-09-28 19:47 1 · 回答

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2024-09-10 20:19 1 · 回答

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2024-08-10 22:46 2 · 回答

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2024-07-23 22:03 1 · 回答

NO.PZ2016031001000069 问题如下 BonG, scribein the exhibit below, is solfor settlement on 16 June 2014.AnnuCoupon 5%Coupon Payment Frequen SemiannualInterest Payment tes 10 April an10 OctoberMaturity te 10 October 2016y Count Convention 30/360AnnuYielto-Maturity 4%The full prithBonG will settle on 16 June 2014 is closest to: A.102.36. B.103.10. C.103.65. B is correct.The bons full priis 103.10. The priis terminein the following manner:of the beginning of the coupon perioon 10 April 2014, there are 2.5 years (5semiannuperio) to maturity. These five semiannuperio occur on 10 October2014, 10 April 2015, 10 October 2015, 10 April 2016 an10 October 2016. PV=PMT(1+r)1+PMT(1+r)2+PMT(1+r)3+PMT(1+r)4+PMT+FV(1+r)5PV=\frac{PMT}{{(1+r)}^1}+\frac{PMT}{{(1+r)}^2}+\frac{PMT}{{(1+r)}^3}+\frac{PMT}{{(1+r)}^4}+\frac{PMT+FV}{{(1+r)}^5}PV=(1+r)1PMT+(1+r)2PMT+(1+r)3PMT+(1+r)4PMT+(1+r)5PMT+FVPV=2.5(1+0.02)1+2.5(1+0.02)2+2.5(1+0.02)3+2.5(1+0.02)4+2.5+100(1+0.02)5PV=\frac{2.5}{{(1+0.02)}^1}+\frac{2.5}{{(1+0.02)}^2}+\frac{2.5}{{(1+0.02)}^3}+\frac{2.5}{{(1+0.02)}^4}+\frac{2.5\text{+}100}{{(1+0.02)}^5}PV=(1+0.02)12.5+(1+0.02)22.5+(1+0.02)32.5+(1+0.02)42.5+(1+0.02)52.5+100PV = 2.45 + 2.40 + 2.36 + 2.31 + 92.84 = 102.36The accrueinterest periois intifie66/180. The number of ys between10April2014 an16 June 2014 is 66 ys baseon the 30/360 y count convention. (This is 20ys remaining in April + 30 ys in M+ 16 ys in June = 66 ys total). The number of ys between coupon perio is assumeto 180 ys using the 30/360 y convention.PVFull=PV×(1 +r)66/180PV^{Full}=PV\times{(1\text{ }+r)}^{66/180}PVFull=PV×(1 +r)66/180PVFull= 102.36×(1.02)66/180= 103.10PV^{Full}=\text{ }102.36\times{(1.02)}^{66/180}=\text{ }103.10PVFull= 102.36×(1.02)66/180= 103.10考点flpri full price解析首先，我们将未来五笔现金流折现到2014.4.10，得到现值之和为102.36。N=5，PMT=2.5，I/Y=2，FV=100，求得PV=102.36然后再将这个数值复利到2014.6.16，得到full price为103.10，故B正确。我们之所以没有直接将未来五笔现金流折到2014.6.16，是因为五笔现金流的时间间隔不同，后面四笔现金流时间间隔是半年，而从6.16到10.10之间并不是半年。因此现金流就不是一个年金的形式，我们就没有办法用计算器直接求PV了。我好像跟什么题目搞混了，有道题是再投资的，什么时候才会再投资来着？

2024-07-23 21:24 2 · 回答