Learning Objectives:

  • Understand the fundamentals of fixed income securities and their market structure 

  • Apply bond valuation and yield calculation techniques 

  • Analyse credit spreads, credit ratings, and the determinants of credit risk 

3.1 Bond Fundamentals

Bonds are debt securities that pay periodic interest (coupon) and return principal at maturity. The University of Southampton’s Fixed Income Securities Analysis module provides “a thorough knowledge of the fixed income securities and techniques available for fixed income securities analysis” . The University of Sydney’s FINC3019 unit covers “the basic analytical framework necessary to understand the pricing of bonds and their investment characteristics” . The University of Warsaw syllabus includes “Debt instruments market” with coverage of “Concept and types of debt instruments” and “Features of the debt instrument” .

Key Bond Features:

  • Face Value (Par Value): The principal amount repaid at maturity.

  • Coupon Rate: The annual interest rate paid on the face value. Fixed coupons and floating/adjustable rates are common .

  • Maturity: The date on which the bond matures and principal is repaid.

  • Yield to Maturity (YTM): The total return anticipated if held to maturity.

  • Credit Spread: The difference between the yield on a corporate bond and a risk-free government bond, reflecting credit risk .

Bond Varieties and Special Features:

  • Bullet Bonds: Principal repaid in a single lump sum at maturity.

  • Amortizing Bonds: Principal repaid gradually over the life of the bond through scheduled payments .

  • Callable Bonds: Bonds that can be redeemed by the issuer before maturity, exposing investors to reinvestment risk.

  • Convertible Bonds: Bonds that can be converted into equity by the holder .

  • Floating-Rate Notes: Coupon payments that reset periodically based on a reference rate .

  • Asset-Backed Securities: Bonds backed by pools of assets such as mortgages or auto loans .

3.2 Bond Valuation and Yield Measurement

The University of Southampton module covers “Bond prices and yield measurements,” “Yield curves and term structure theories,” and “Default risk and price sensitivity” as core topics . The University of Sydney unit covers “Calculate bond prices and yields and identify the risks associated with investing in bonds” .

Present Value Approach: The price of a bond is the present value of expected future cash flows (coupon payments and principal) discounted at the appropriate yield.

Duration: A measure of the price sensitivity of a bond to interest rate changes. The University of Southampton module addresses “Default risk and price sensitivity” . The University of Sydney unit covers “fundamental concepts such as duration” .

Convexity: A measure of the curvature in the price-yield relationship, providing a more accurate measure of interest rate sensitivity than duration alone.

Yield Curve: The relationship between yields and maturities. The University of Southampton module includes “Yield curves and term structure theories” as a core topic . The University of Sydney unit covers “Analyse the factors likely to affect the shape of the yield curve” .

3.3 Credit Risk and Credit Spreads

Credit risk is the risk of default by the bond issuer . The University of Southampton module addresses “Default risk” .

Credit Ratings: Assessments of creditworthiness provided by rating agencies (S&P, Moody’s, Fitch). Bonds are classified as:

  • Investment Grade: Rated BBB- or higher (S&P) / Baa3 or higher (Moody’s).

  • High Yield (Junk): Rated below investment grade, reflecting higher default risk and higher yields.

Credit Spread: The premium over the risk-free rate required by investors to compensate for credit risk. Spreads widen during economic downturns and tighten during expansions.

Determinants of Credit Spreads:

  • Credit Quality: Higher default risk leads to wider spreads.

  • Economic Conditions: Spreads widen during recessions.

  • Liquidity: Less liquid bonds trade at wider spreads.

  • Maturity: Longer-maturity bonds typically have wider spreads.

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