CFA Level I · CFA Level I Exam · Credit Risk
An analyst notes that a corporate bond's rating has remained unchanged for two years, while the issuer's credit spread has widened sharply over the last six months. Which limitation of credit ratings does this observation most likely illustrate?
This illustrates that ratings lag market information. Spreads reflect investors' real-time view of credit risk, while agencies adjust ratings slowly and deliberately. A widening spread with an unchanged rating suggests the rating has not yet caught up with deteriorating credit conditions.
- ARatings are lagging indicators that can be slow to reflect changing credit conditionsCorrect
- BRatings are updated so frequently that they cause excessive volatility
- CRatings are based only on the bond's coupon rate and maturity
Explanation
Agencies change ratings gradually to avoid reversals, so ratings often lag market-implied credit risk. A widening spread with a static rating suggests the market sees deterioration that the agency has not yet recognized. Frequent updating and coupon-based rating are inaccurate descriptions of the process.
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