Have you seen $20,000?

You own a bond that will pay 7% per year for the next 10 years, on a principal of $20,000. If the prevailing discount rate is 10% throughout, what is the bond worth now?


The answer is 16313.26.

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3 solutions

Chew-Seong Cheong
Feb 16, 2015

I solved it using a spreadsheet:

Great! Spreadsheets are your best friend when pricing bonds.

Calvin Lin Staff - 6 years, 3 months ago
Calvin Lin Staff
Feb 10, 2015

The price of a bond is determined by the present value of the coupon payments. Hence, it is equal to

20000 ( 1.1 ) 10 + i = 1 10 1400 ( 1.1 ) i . \frac{ 20000} { ( 1.1) ^ {10} } + \sum_{i=1}^{10} \frac{ 1400} { (1.1) ^ i } .

This gives us the value of 16313.26

Note that since the interest rate is lower than the discount rate, hence this bond trades at a discount.

Ok so there's a summation associated with it . Actually sir, a friend(who has taken commerce) has helped me out, no it was he who gave me the answer .

But your solution is clearer .

A Former Brilliant Member - 6 years, 3 months ago
Johnno Maris
Oct 7, 2018

The present value of a coupon bond can be calculated as: PV= CPN * 1 y \frac{1}{y} * (1- 1 ( 1 + y ) N \frac{1}{(1+y)^N} ) + F V ( 1 + y ) N \frac{FV}{(1+y)^N}

  • CPN is the Coupon the bond pays.
  • y is the discount rate, also known as the Yield to Maturity.
  • N is the number of periods.
  • FV is the Future value.

Inserting the variables gives: PV= (0.07*20,000) * 1 0.1 \frac{1}{0.1} * (1- 1 ( 1 + 0.1 ) 10 \frac{1}{(1+0.1)^{10}} ) + 20 , 000 ( 1 + 0.1 ) 10 \frac{20,000}{(1+0.1)^{10}} = 16313.26

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