Difference Between Bond Yield and Bond Price

Bonds are part of or, say, a unit of corporate securities that are securitized as assets that are tradable. Bonds are issued by corporations and are considered fixed-income instruments.


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Four types of Bonds are mainly surfacing in the market: Corporate Bonds, Municipal Bonds, Government Bonds, and Agency Bonds. Corporate bonds are those that a company issues. State municipalities have the authority to issue Municipal bonds.

The U.S. Treasury issues Government bonds. There are three types: Bills, Notes, and Bonds, based on their maturity duration.

Agency Bonds are those bonds that a Government-affiliated organization issues.

Bond Yield vs Bond Price

Bond yield is the return an investor will earn based on the bond’s coupon rate and current market price. It is expressed as a percentage of the bond’s face value. The bond price is the amount an investor pays to purchase a bond. It can fluctuate based on the bond issuer’s interest rate and credit rating. Bond yield and bond price have an inverse relationship, meaning when the bond price goes up; the bond yield goes down, and vice versa.

Bond Yield vs Bond Price

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Bond yield is also expressed as yield to maturity, which is the total return on the investment on the bond if the investment on the bond is kept till its actual maturity period and all the coupons are received on time and re-invested in the bond at the same interest rate as that of the bond.

It is expressed in percentage terms.

Bond price is the monetary value of the bond that an investor will receive at the end of the maturity term of investment on the Bond. It incorporates coupons as well as capital investment. It varies greatly and is expressed in terms of the percentage of face value.

Comparison Table

Parameters of ComparisonBond YieldBond Price
MeaningIt is the interest rate on an invested bond and can vary differently.It is the valuation of a bond in monetary terms.
FormulaYield= (bond interest/ bond price)*100Bond Price = ∑(C/ (1+YTM)n )+ P / (1+i)n
n= Maturity term
YTM= yield to maturity
C=Coupon payment
P= Par value of the bond
i= Interest rate
RelationshipInversely dependent on the Bond priceInversely dependent on Bond yield
Mutual relationshipIt depends on bond price and inversely changes itself to balance the interest rates.It depends on bond yield and inversely changes itself to balance the interest rates as they do not change.
VitalityA bond yield is a must for every bond as it describes the returns.Bond price is essential for a bond to describe its evaluation.

What is Bond Yield?

Bond yield can be defined as the function of the annual percentage and the return on a specific bond invested. So, if the Bond yield is 10% on the investment, it will give an average of 10% return on the investment.

Bonds, when mature, can be sold in the open market at a reasonable price which usually fluctuates daily.

The formulae for bond yield calculation are:

Current yield= (annual interest/bond price)*100

Yield is inversely proportional to the bond price. Regardless of the bond price, the coupon always stays the same. Investors also refer to bond yield as yield to maturity(YTM). It is the overall sum of all the interest payments received by the investor and the profit or loss that occurred.

Yield to maturity somehow helps in the comparison between different types of maturities and coupons. It involves a complex calculation and includes factors such as the bond’s coupon rate, bond price, time remaining for maturity, face value, and bond price difference.

bond yield

What is Bond Price?        

The bond price is the monetary value of a bond paid by an investor to acquire the bond. It is expressed as a percentage of the face value of the bonds. Bond prices change daily by the market and the interest rates.

If the interest rate hikes after the purchase of the bonds, the bond price of those bonds decreases as the new bonds with a higher coupon rate are likely to be issued. A high-interest rate indicates a decrease in the price of existing bonds.

However, the bond price of the existing bonds increases if there is a decrease in the interest rates. This usually indicates that the investors can profit by selling the bond at a higher price than when it was purchased.

bond price

Main Differences Between Bond Yield and Bond Price

  1. Bond yield has an inverse relationship with the bond price. As the price increases, the yield decreases, and vice-versa.
  2. The change in bond yield affects the bond price and vice versa. If the bond yield rises, the price has to decrease to balance the interest rates.
  3. Bond yield is the return or monetary benefit or loss on an investment, whereas the bond price is the monetary value of a bond.
  4. While the yield is one of the significant factors the investor considers while calculating the return, the bond price is seen to check how much the investor can invest.
  5. The bond yield is expressed as a percentage value, while the bond price is monetary. E.g., the yield value of a bond is 4%, while its price is Rs.1000. it means the return on this investment will be Rs.40.
  1. https://www.sciencedirect.com/science/article/pii/B9780444594068000135
  2. https://www.tandfonline.com/doi/abs/10.1080/09603100801964370 
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