WHAT IS THE REASONING BEHIND A LOW COUPON BOND BEING MORE VOLATILE IN - ProProfs Discuss
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What is the reasoning behind a low-coupon bond being more volatile in price change versus a high-coupon bond?



Asked by Halifax, Last updated: Nov 23, 2021

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John Smith

John Smith

John Smith
John Smith

Answered Sep 08, 2016

The following is a mathematical reasoning: i worked out some calculations to compare a 9% 2-year annual coupon bond vs. a 2% 2-year annual coupon bond. consider that at a 5% discount rate, the price of the 9% coupon bond is approximately $107.43 while the price of the 2% coupon bond is $94.41. when the discount rate drops from 5% to 2%, the price of the 9% coupon bond rises by a little over $6 to $113.58. at the same time, the 2% coupon bond increases in price by approximately $5.59 to a price of $100.since the low coupon bond started at a much lower price, the dollar change means much more to that bond in percentage terms than the high coupon bond price change in percentage terms. other things being equal, this relationship doesnt change low coupon bonds are more volatile in price percentage change than high coupon bonds.
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