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What this chapter covers:
Type A: Calculating Bond Price Using Spot Rates
Type B: Calculating Forward Rate
Problem:
Given:
Answer:
โ Mistake 1: Using YTM instead of spot rates for valuation. โ How to avoid:
โ Mistake 2: Incorrectly applying the forward rate formula. โ How to avoid:
Visualize the yield curve. Understanding the shape (upward sloping, downward sloping, flat) helps in predicting future rate movements and applying the correct formulas.
What this chapter covers:
Type A: Valuing a Bond Using a Binomial Tree
Type B: Calculating OAS
Problem:
Given:
Answer:
โ Mistake 1: Not considering the call/put option when valuing bonds with embedded options. โ How to avoid:
โ Mistake 2: Forgetting to discount by (1 + forward rate) in the binomial tree. โ How to avoid:
Draw the binomial tree clearly. Label each node with the corresponding interest rate and bond value. This helps in visualizing the process and avoiding errors.
What this chapter covers:
Type A: Valuing a Callable Bond
Type B: Calculating Effective Duration for a Callable Bond
Problem:
Given:
Answer:
โ Mistake 1: Ignoring the call/put feature when calculating bond values. โ How to avoid:
โ Mistake 2: Using modified duration instead of effective duration for bonds with embedded options. โ How to avoid:
Remember that callable bonds have negative convexity when rates are near the call price. This means their price appreciation is limited as rates fall.
What this chapter covers:
Type A: Calculating Expected Loss
Type B: Calculating Expected Return Given Credit Migration
Problem:
Given:
Answer:
โ Mistake 1: Ignoring recovery rates when calculating loss given default. โ How to avoid:
โ Mistake 2: Not considering credit migration when evaluating bond performance. โ How to avoid:
Understand the difference between structural and reduced-form models. Structural models rely on balance sheet information, while reduced-form models use statistical modeling.
What this chapter covers:
Type A: Calculating CDS Spread
Type B: Determining CDS Payout
Problem:
Given:
Answer:
โ Mistake 1: Confusing CDS spread with the actual payout after a credit event. โ How to avoid:
โ Mistake 2: Ignoring the impact of the recovery rate on the CDS spread. โ How to avoid:
Remember that buying CDS protection is equivalent to shorting credit risk, while selling CDS protection is equivalent to going long credit risk.