What Is Credit Risk?

While interest rate risk (Chapter 64) is about market movements, Credit Risk (also known as Default Risk) is about the borrower’s ability to keep their promise.¹ It is the risk that a bond issuer will fail to make timely interest payments or fail to return the principal at maturity.²

In the 2026 credit cycle, as corporate debt levels reach new highs, understanding the nuances of credit risk is essential for protecting your capital from permanent loss.

1. The Three Faces of Credit Risk

Credit risk is not just a "yes or no" question of default. It manifests in three distinct ways:³

• Default Risk: The literal failure to pay.⁴ This is the most extreme form, where the borrower stops making payments entirely.
• Downgrade Risk: The risk that a credit rating agency (like S&P or Moody's) will lower the issuer's rating (e.g., from AA to BBB). Even if the company hasn't defaulted, a downgrade will cause the bond's market price to drop instantly.⁵
• Credit Spread Risk: The risk that the "extra yield" investors demand for taking on credit risk increases. If the market becomes worried about the economy, they will sell corporate bonds and buy safe Treasuries, causing corporate bond prices to fall even if no specific company’s health has changed.

2. How Credit Risk is Measured

To quantify this risk, professional analysts use several key indicators:

• Probability of Default (PD): A statistical estimate of how likely it is that the borrower will fail over a specific timeframe (usually one year).⁶
• Loss Given Default (LGD): If the borrower defaults, how much of your money will you actually lose?⁷ This depends on whether the bond is "secured" by assets like real estate or equipment.⁸
• Interest Coverage Ratio: A financial health check.⁹ It measures how many times a company can pay its interest expenses using its current earnings ($EBITDA / \text{Interest Expense}$).

3. The 5 C’s of Credit Analysis

When banks and professional bond buyers evaluate an issuer, they look at these five "Pillars":

1. Character: The issuer's reputation and history of repaying debt.¹⁰
2. Capacity: The legal and financial ability to generate enough cash flow to service the debt.¹¹
3. Capital: How much "skin in the game" the owners have. A company with high equity is less likely to walk away from its debts.
4. Collateral: Assets pledged as security for the loan.¹²
5. Conditions: External factors like the state of the economy or industry-specific trends (e.g., a recession or a new regulation).¹³

4. Why 2026 is a "High-Alert" Year

As of January 2026, the credit market is entering a "refinancing wall." Many companies that borrowed at near-zero rates in 2021 must now issue new bonds at much higher rates.

• The Risk: Companies with weak cash flows may find that their "Interest Coverage Ratio" drops dangerously low, leading to potential defaults or forced restructurings.
• The Strategy: Focus on Investment Grade (BBB- and above) bonds, which historically have much lower default rates during economic stress than "High Yield" or junk bonds.

Summary: Credit Risk Cheat Sheet