Credit Risk
Quick Definition
The risk that a borrower will fail to make payments on a debt obligation, leading to potential losses for lenders or bondholders.
What Is Credit Risk?
Credit risk is the possibility that a borrower—whether a corporation, government, or individual—will default on their debt obligations.
Types of Credit Risk:
Default Risk:
- Complete failure to pay principal or interest
- Most severe form of credit risk
- Results in potential total loss
Downgrade Risk:
- Credit rating lowered
- Bond price drops even without default
- Higher borrowing costs for issuer
Spread Risk:
- Credit spreads widen
- Market demands higher premium for risk
- Affects all non-Treasury bonds
Credit Ratings Scale:
| Rating | Grade | Risk Level |
|---|---|---|
| AAA | Investment | Lowest |
| AA | Investment | Very Low |
| A | Investment | Low |
| BBB | Investment | Moderate |
| BB | Speculative | High |
| B | Speculative | Higher |
| CCC+ | Speculative | Very High |
| D | Default | Maximum |
Measuring Credit Risk:
- Credit ratings: Moody's, S&P, Fitch
- Credit spreads: Yield vs. Treasury
- CDS spreads: Insurance cost against default
- Debt ratios: Coverage and leverage
Credit Spread Example: If Treasury yields 4% and corporate bond yields 6%, credit spread = 2% (200 basis points)
Managing Credit Risk:
- Diversification: Don't concentrate in one issuer
- Credit quality: Stick to investment grade
- Laddering: Spread maturities
- Research: Analyze issuer fundamentals
- Bond funds: Professional management
Historical Default Rates (Annual):
| Rating | 10-Year Cumulative Default |
|---|---|
| AAA | 0.5% |
| BBB | 4.6% |
| BB | 14.8% |
| B | 29.0% |
| CCC | 52.3% |
Credit Risk Example
- 1Lehman Brothers bonds went from investment grade to worthless in 2008—extreme credit risk
- 2Junk bonds yield 5% more than Treasuries to compensate for credit risk
Related Terms
Bond
A fixed-income debt security where investors loan money to an issuer in exchange for regular interest payments and return of principal at maturity.
High-Yield Bond (Junk Bond)
Bonds rated below investment grade (BB+ or lower) that offer higher interest rates to compensate for increased default risk.
Standard Deviation
A statistical measure of how spread out returns are from the average, quantifying investment volatility and risk.
Risk Management
The systematic process of identifying, assessing, and mitigating financial risks to protect portfolio value and achieve investment objectives.
Hedging
An investment strategy that uses offsetting positions to reduce the risk of adverse price movements in an existing asset or portfolio.
Sharpe Ratio
A risk-adjusted return metric measuring excess return per unit of risk, helping compare investments with different risk levels.
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