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Know Your Terms : Bonds (Fixed Income)

Bonds, often referred to as fixed-income securities, are debt instruments through which an investor lends money to a borrower (government, corporation, or other entity) for a defined period at a predetermined interest rate. They play a crucial role in diversified portfolios, offering predictable income streams and relatively lower volatility compared to equities.

1. Face Value (Par Value)

The face value is the principal amount of the bond that the issuer agrees to repay to the bondholder upon maturity. Coupon interest is calculated based on this value.

2. Coupon Rate

The coupon rate is the fixed (or sometimes floating) annual interest rate paid by the bond issuer to the investor, expressed as a percentage of the face value.

 Example: A bond with a ₹1,000 face value and a 6% coupon rate pays ₹60 annually.

3. Maturity

The maturity date is when the bond’s principal amount is repaid to the investor, and all interest payments cease. Bonds may be:

  • Short-term: < 3 years
  • Medium-term: 3–10 years
  • Long-term: > 10 years

4. Yield

Yield represents the effective return an investor earns on a bond, factoring in purchase price, coupon payments, and time to maturity.

Common measures include:

  • Current Yield = Annual Coupon / Market Price
  • Yield to Maturity (YTM): The total return if the bond is held until maturity, assuming all coupons are reinvested.

5. Credit Rating

Bonds are rated by agencies (e.g., CRISIL, ICRA, S&P) to assess the issuer’s creditworthiness. Ratings range from AAA (highest quality) to D (default), influencing yield and perceived risk.

6. Market Price vs. Par Value

Bond prices fluctuate in the secondary market due to changes in interest rates, credit quality, and market demand.

  • Premium Bond: Price > Par Value
  • Discount Bond: Price < Par Value

7. Types of Bonds

  • Government Bonds (G-Secs): Issued by sovereign entities, considered low-risk.
  • Corporate Bonds: Issued by companies, offering higher yields with varying risk.
  • Municipal Bonds: Issued by local bodies, often with tax benefits.
  • Convertible Bonds: Can be converted into equity shares under specific conditions.
  • Zero-Coupon Bonds: Issued at a discount, no periodic interest; returns realized at maturity.

8. Interest Rate Risk

Bond prices are inversely related to interest rates. When rates rise, bond prices fall, and vice versa. Longer-duration bonds are more sensitive to rate changes.

9. Callable and Puttable Bonds

  • Callable Bonds: Issuer can redeem before maturity, often when interest rates drop.
  • Puttable Bonds: Investor can sell back to issuer before maturity, offering protection in rising rate environments.

Bonds provide stability, income, and diversification benefits in a portfolio. Understanding these key terms enables investors to evaluate fixed-income securities effectively, manage interest rate exposure, and optimize returns based on their risk profile and investment horizon.

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