iifl-logo-icon 1

Coupon Vs. Yield: Meaning & Definition

Last Updated: 27 Dec 2024

The coupon rate is the annualized interest amount. It is the percentage of the face value that a bond pays in one year. The coupon rate is calculated by taking the annual coupon payment and dividing it by the bond’s face value.

A coupon bond is a bond with a fixed interest rate, or coupon. You can calculate how much interest you will receive from your investment by multiplying the bond’s face value by its coupon rate and then dividing by 100. For example, if you own a Rs 1,000 par value bond with an 8% annual coupon payment, your annual interest would be Rs 80 (Rs 1,000 x 0.08 = 80).

The difference between coupon and yield is that coupon refers to the stated interest rate payable each year, while yield refers to the actual return an investor earns from holding a bond for a year.

Investors should always be careful when examining bond data as another difference between coupon and yield is that coupon is fixed, whereas yield can change over time. Thus, investors depend on books and other outlets to provide accurate information regarding both variables.

The coupon rate and yield to maturity

The coupon rate and yield to maturity are two key terms of bonds. They might be used interchangeably, but they each have a different meaning. The coupon rate is the stated interest rate on a bond. So, if you buy a bond with a coupon rate of 4%, that means that you’ll receive an annual interest of 4% of the face value for however long you hold onto the bond (unless it gets called). The yield to maturity (YTM) is the actual return that’s earned based on the current market price of the bond. Yield refers to the amount you earn if you could hang onto this particular bond until it reaches maturity or gets called.

However, If there are changes in inflation or interest rates after a bond has been issued, its price will go up or down, depending on whether inflation and interest rates rose/fell above/below the original coupon rate. In other words, if inflation goes down and so do interest rates. Your newly-issued Rs 1,000 bond will become more valuable than before since most people won’t be buying new bonds at this lower rate while they keep cashing out their old higher-interest bonds. Consequently, your yield will go down as well because your new Rs 1,000 bond will now pay less than other higher-coupon bonds still being issued by others.

Effect of coupon and yield on bond price

Bond coupon vs yield

A bond’s coupon is a per cent rate of its face value, while yield is the return an investor receives. You might think that high coupon and high yield would be ideal, but they both influence bond price in the same way: when one goes up, the other goes down. If a bond pays high interest (coupon), you’d expect it to be more expensive than bonds with a lower interest rate. But, what about if bond prices go up? In that case, higher-yielding bonds would be cheaper since their price increased less than lower-yielding bonds—and after all, cheaper bonds are more attractive to investors.

The bottom line for coupon rates vs yield is that both of these are inversely related. As one increases or decreases, so does the other.

Yield can also be used to compare different investments that have the same coupon rate. This is an important skill since you’ll need to know how to find the price of a bond to determine its break-even yield, which you may want to do if you’re considering whether a bond is worth purchasing.

Formula:

Bond Price = Coupon Rate / (1 + YTM)^n + Par Value / (1+YTM)^n

This formula shows that the relationship between coupon rate and yield is inverse. If coupon rates increase, then the price of the bond decreases; conversely, if yields rise, then the price of bonds will increase.

Some Things to Keep in Mind When Calculating Yield to Maturity

An individual bond investor sees the coupon payment as a source of profit, whereas a bond trader sees potential gain or loss generated by variations in the bond’s market price.

If an investor purchases the bond at the original price (Par value), the yield to maturity will be equal to the coupon rate. Hence, you need to pay attention to the coupon rate if you plan on buying a new-issue bond and holding it till maturity. However, if you bought a bond at a discount, the yield to maturity will be higher than the coupon rate. Adversely, in the case of a bond purchased at a premium, the yield to maturity will be lower than the coupon rate.

What is Coupon Rate?

The coupon rate is the most important in the context of bond investment in India, representing the fixed annual interest payment that the issuer of the bond promises to pay to the holders. This rate is quoted on a percentage basis over the face value of the bond and is constant during the life of the bond. For example, if a corporate bond has a face value of ₹1,000 with a coupon rate of 8%, the annual payment is ₹80 till maturity. In India, corporate bonds have comparatively higher coupon rates than government securities, with a rate of 7% to 12% based on the credit ratings of issuers.

Therefore, a clear understanding of what coupon vs yield is all about helps the investor. Although the coupon rate is definite income, the yield represents the actual return from the bond itself as of its current market price. If market interest rises above a bond’s coupon rate, its market price might decline, resulting in a yield that is larger than the original coupon rate. On the other hand, if interest rates decline, the yield may be lower than the coupon rate. This dynamic illustrates how coupon vs yield can impact an investor’s decision-making process.

Considering market conditions will change, investors would need to take into account both metrics while evaluating bonds. For instance, if a bond is bought at a premium or discount, the yield would be quite different from the coupon rate. Therefore, coupon vs yield is crucial to assess the potential returns and make an informed investment choice in India’s diversified bond market.

What is Yield to Maturity?

Yield to Maturity (YTM) is an important concept in bond investing, representing the total expected return on a bond if held until its maturity date. It is calculated as the internal rate of return (IRR) that equates the present value of all future cash flows—both coupon payments and the bond’s face value at maturity—to the current market price of the bond. YTM is expressed as an annual percentage rate and gives investors a comprehensive measure of the profitability of a bond, assuming all coupon payments are reinvested at the same rate.

Coupon vs yield can be a very important distinction when analyzing bonds. A coupon rate is the fixed interest payment made by the issuer, while yield can change based on market conditions. For instance, if a bond has a coupon rate of 6% but is purchased at a discount, the YTM will exceed 6%. Conversely, if bought at a premium, the YTM will be lower than the coupon rate. This relationship highlights why investors must consider both metrics: while the coupon provides regular income, YTM offers insight into total returns over time.

In India, with bonds ranging from government securities to corporate bonds, investors should compare coupon vs yieldbefore investing. High YTM might suggest better potential returns, particularly in an interest rate increasing scenario where the existing bonds would trade at discounts. Hence, knowing YTM will help investors assess the risk and return more effectively on their bond portfolios.

Differences Between Coupon Rate and Bond Yield

Understanding the differences between the coupon rate and bond yield is essential for investors navigating the bond market. The terms are often discussed in relation to each other, leading to the concept of coupon vs yield. Below is a table summarizing the key differences:

 

Feature Coupon Rate Bond Yield
Payment Structure Remains constant throughout the bond’s life. Can change based on market conditions and the bond’s current price.
Calculation Calculated as a percentage of the bond’s face value (e.g., 8% on a ₹1,000 bond results in ₹80 annually). Calculated by dividing the annual coupon payment by the bond’s current market price.
Relationship with Price Independent of the bond’s market price; does not change. Inversely related to bond price; as prices increase, yields decrease, and vice versa.
Investor Focus Important for investors seeking predictable income from interest payments. More relevant for traders and investors looking at total returns and market dynamics.
Example A bond with a coupon rate of 6% pays ₹60 annually regardless of market price changes. If the same bond trades at a premium, its yield may drop below 6%; if at a discount, it may rise above 6%.

Invest wise with Expert advice

By continuing, I accept the T&C and agree to receive communication on Whatsapp

Frequently Asked Questions

No, the coupon rate is fixed at the time of issuance and remains constant for the entire life of the bond. This stability provides investors with predictable income, regardless of market fluctuations or changes in interest rates.

When market interest rates rise, existing bond prices typically decline, resulting in higher yields for new buyers. Conversely, when interest rates fall, bond prices increase, leading to lower yields. This inverse relationship is crucial for investors to understand when evaluating bond investments.

If you purchase a bond at a premium, you pay more than its face value. Consequently, the yield will be lower than the coupon rate because the higher purchase price reduces the overall return relative to the fixed coupon payments received.

Reinvesting coupon payments can enhance total returns over time by generating additional income. However, Yield to Maturity (YTM) calculations assume reinvestment at the same yield rate, which may not always be achievable due to varying market conditions and interest rates.

Invest wise with Expert advice

By continuing, I accept the T&C and agree to receive communication on Whatsapp

Knowledge Center
Logo

Logo IIFL Customer Care Number
(Gold/NCD/NBFC/Insurance/NPS)
1860-267-3000 / 7039-050-000

Logo IIFL Capital Services Support WhatsApp Number
+91 9892691696

Download The App Now

appapp
Loading...

Follow us on

facebooktwitterrssyoutubeinstagramlinkedintelegram

2025, IIFL Capital Services Ltd. All Rights Reserved

ATTENTION INVESTORS

RISK DISCLOSURE ON DERIVATIVES

Copyright © IIFL Capital Services Limited (Formerly known as IIFL Securities Ltd). All rights Reserved.

IIFL Securities Limited - Stock Broker SEBI Regn. No: INZ000164132, PMS SEBI Regn. No: INP000002213,IA SEBI Regn. No: INA000000623, SEBI RA Regn. No: INH000000248

plus
We are ISO 27001:2013 Certified.

This Certificate Demonstrates That IIFL As An Organization Has Defined And Put In Place Best-Practice Information Security Processes.