What is the difference between a coupon rate and a yield to maturity?

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What is the difference between a coupon rate and a yield to maturity?

The coupon rate and yield to maturity are both important concepts in the field of bonds, but they represent different aspects of a bond's characteristics.

The coupon rate refers to the fixed interest rate that a bond issuer promises to pay to bondholders over the life of the bond. It is expressed as a percentage of the bond's face value and is typically paid semi-annually or annually. For example, if a bond has a face value of $1,000 and a coupon rate of 5%, the bondholder will receive $50 in interest payments each year.

On the other hand, the yield to maturity (YTM) represents the total return an investor can expect to earn if they hold the bond until it matures. It takes into account not only the coupon payments but also the purchase price of the bond and the time remaining until maturity. YTM is expressed as an annual percentage rate and is a measure of the bond's overall profitability.

The key difference between the coupon rate and yield to maturity is that the coupon rate is fixed and predetermined, while the yield to maturity can vary depending on the bond's market price and the prevailing interest rates. If a bond is trading at a premium (above its face value), the yield to maturity will be lower than the coupon rate. Conversely, if a bond is trading at a discount (below its face value), the yield to maturity will be higher than the coupon rate.

In summary, the coupon rate represents the fixed interest payments a bondholder will receive, while the yield to maturity reflects the total return an investor can expect if they hold the bond until maturity, taking into account the purchase price and time remaining.