Re: Calculating yield to maturity , incorrect answer ? why ?

Posted by johnacandy on Oct 18, 2010; 7:16pm
URL: http://quantlib.414.s1.nabble.com/Calculating-yield-to-maturity-incorrect-answer-why-tp8325p8329.html

So i made the changes as I was told which were  
Settings::instance().evaluationDate()= bondDatedDate; //which is (15,June,2010)
and made certain the Redemption was = 100.0
and i got an output of 5.667 which unfortunately is still not correct , its suppose to be 16.6
I have attached the cleaned up remodified final code at Code.txt
hope you guys could take a look at the code and tell me what I am doing wrong. As i already mentioned
I have used the calculator at http://www.investopedia.com/calculator/AOYTM.aspx
with the values
100
90
5
1
and it gives 16.67 and this is the same answer that i want.
I would be really grateful if any one could help me out..Thanks again...

Simon Ibbotson-2 wrote

1 year before maturity... so in this case, 15 June 2010

-----Original Message-----
From: johnacandy [mailto:[e-mail]]
Sent: 18 October 2010 16:33
To: [e-mail]
Subject: Re: [Quantlib-users] Calculating yield to maturity , incorrect
answer ? why ?


i am currently trying to set
Settings::instance().evaluationDate() =  ??

 which date should i insert ? 15,June,2010 or 15,June,2011
 as I have set the duration to 1 year.. ??



Simon Ibbotson-2 wrote:
>
> Try setting the evaluation date at a global level... using
> Settings::instance().evaluationDate() =
>
>  
>
> Then let us know what the result is.
>
>  
>
> ________________________________
>
> From: Hayyan Rafiq [mailto:[e-mail]]
> Sent: 18 October 2010 15:53
> To: Simon Ibbotson
> Subject: RE: [Quantlib-users] Calculating yield to maturity ,
incorrect
> answer ? why ?
>
>  
>
>
>
>> Subject: RE: [Quantlib-users] Calculating yield to maturity ,
> incorrect answer ? why ?
>> Date: Mon, 18 Oct 2010 15:46:35 +0100
>> From: [e-mail]
>> To: [e-mail]
>>
>> Attaching the code would be useful...
>>
>> -----Original Message-----
>> From: johnacandy [mailto:[e-mail]]
>> Sent: 18 October 2010 15:42
>> To: [e-mail]
>> Subject: [Quantlib-users] Calculating yield to maturity , incorrect
>> answer ? why ?
>>
>>
>> I was hoping you folks could help me out , as i dont know peoole who
> are
>> familiar with quantlib ,I checked an example out and i wrote down a
> code
>> in
>> VS2010 C++ and boost + quanlib.
>> I have attached the code in a noted pad unfortunately i am not
>> getting the required answer , hope you could help me out
>>
>> Now i have the following requirement :
>>
>> Current Price = 90
>> Par Value = 100
>> Coupon Rate = 5 %
>> Years to maturity = 1
>>
>> >From the above data an online calculator calculates the Yield to
>> maturity to
>> be = 16.667
>>
>> However the program i wrote gives 1.769. :(
>>
>> The code i wrote is attached with this email , i dont know where i am
>> going
>> wrong , could you kindly go through the program and let me know what
i
>> am
>> doing wrong , i need to readjust the above mentioned program to
> display
>> 16.6... something... Hope you could help me out...
>>
>> I have used the calculator at
>> http://www.investopedia.com/calculator/AOYTM.aspx
>> with the values
>> 100
>> 90
>> 5
>> 1
>> (select Annually)
>> and it gives 16.67
>> and thats what i want.
>> I have emailed you the code i am using on the notepad file... Plz
take
>> some
>> time to go through it. I bet i must have made a very silly mistake...
>> Thanks again
>> --
>> View this message in context:
>>
>
http://old.nabble.com/Calculating-yield-to-maturity-%2C-incorrect-answer
>> ---why---tp29991145p29991145.html
>> Sent from the quantlib-users mailing list archive at Nabble.com.
>>
>>
>>
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--
View this message in context:
http://old.nabble.com/Calculating-yield-to-maturity-%2C-incorrect-answer
---why---tp29991145p29991643.html
Sent from the quantlib-users mailing list archive at Nabble.com.


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