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Fixed IncomeFebruary 20, 202412 min read

Understanding Fixed Income

An introduction to bonds and fixed income securities for retail investors.

RetailBook Education

Education Team

Beginner 12 min read

What Is Fixed Income?

Fixed income securities are investments that provide regular, predictable income payments. The most common type is bonds—loans you make to governments or corporations in exchange for interest payments.

How Bonds Work

When you buy a bond:

  1. You lend money to the issuer
  2. The issuer pays you interest (the “coupon”)
  3. At maturity, you receive your principal back

Key Terms

  • Face Value (Par): The amount repaid at maturity, typically £100 or £1,000
  • Coupon Rate: The annual interest rate paid on the face value
  • Maturity Date: When the bond expires and principal is repaid
  • Yield: The effective return based on current price

Types of Fixed Income Securities

Government Bonds

Issued by national governments:

  • UK Gilts: British government bonds
  • US Treasuries: American government bonds
  • Generally low risk: Backed by government
  • Various maturities: Short, medium, long-term

Corporate Bonds

Issued by companies:

  • Investment Grade: Higher quality, lower yield
  • High Yield: Lower quality, higher yield
  • Secured/Unsecured: Asset-backed or not
  • Industry variety: Across all sectors

Municipal Bonds

Issued by local governments:

  • Fund local projects
  • Often tax-advantaged
  • Generally stable

Understanding Bond Prices

Bond prices move inversely to interest rates:

Interest RatesBond Prices
Rise ↑Fall ↓
Fall ↓Rise ↑

Why This Happens

If you hold a 3% bond and new bonds offer 4%, your bond becomes less attractive. Its price falls until its effective yield matches the market.

Yield Calculations

Current Yield

Current Yield = Annual Coupon / Current Price × 100

Example: £5 coupon on a bond priced at £95 = 5.26% yield

Yield to Maturity (YTM)

The total return if held to maturity, accounting for:

  • Coupon payments
  • Price difference from par
  • Time to maturity

Credit Ratings

Agencies rate bond issuers by creditworthiness:

RatingMeaningRisk
AAA/AaaHighest qualityLowest
AA/AaHigh qualityVery low
AUpper mediumLow
BBB/BaaMedium gradeModerate
Below BBBSpeculativeHigher

Benefits of Fixed Income

1. Predictable Income

Regular coupon payments provide steady cash flow—ideal for:

  • Retirement income
  • Regular expenses
  • Portfolio stability

2. Capital Preservation

At maturity, you receive face value back (assuming no default).

3. Diversification

Bonds often move differently from equities, reducing overall portfolio volatility.

4. Lower Volatility

Typically less price movement than stocks.

Risks to Consider

  1. Credit Risk: Issuer may default
  2. Interest Rate Risk: Prices fall when rates rise
  3. Inflation Risk: Fixed payments lose purchasing power
  4. Liquidity Risk: May be hard to sell some bonds
  5. Call Risk: Issuer may repay early

Accessing Bond Markets

Primary Market

Buy new issues directly:

  • Government bond auctions
  • Corporate bond offerings via platforms like RetailBook
  • Often better pricing than secondary market

Secondary Market

Buy existing bonds:

  • Through brokers
  • Bond ETFs for diversification
  • Bond funds for professional management

Summary

Fixed income provides predictable returns and portfolio stability. Understanding the relationship between yields, prices, and risk helps you select appropriate bonds for your investment goals.

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