Credit Rating
Credit Rating
An assessment of a borrower's creditworthiness and ability to meet debt obligations, issued by independent rating agencies. The two primary agencies are Moody's and Standard & Poor's (S&P), which use different rating scales. Ratings range from AAA/Aaa (highest quality) to D/C (default), with investment-grade bonds rated BBB-/Baa3 or higher and speculative-grade (high-yield or junk) bonds rated below investment-grade. Downgrades increase yields and decrease bond prices, while upgrades have the opposite effect.
A pharmaceutical company's bonds are initially rated A by S&P. After a failed drug trial, S&P downgrades the bonds to BBB-. The market price immediately drops from $1,020 to $980, and the yield increases from 4.2% to 4.8%. If downgraded further to BB+, the bonds would lose investment-grade status, triggering forced selling by institutional investors restricted to investment-grade securities only.
Students often confuse rating scales between agencies (AAA vs Aaa), misunderstand that the investment-grade threshold is BBB-/Baa3 (not BBB/Baa), or assume credit ratings are buy/sell recommendations (they assess default risk only, not investment merit). Ratings evaluate creditworthiness, not whether a bond is a good investment at current prices.
How This Is Tested
- Identifying investment-grade vs speculative-grade bonds based on credit ratings
- Understanding how rating changes (upgrades/downgrades) affect bond prices and yields
- Determining suitability of bonds for clients based on credit ratings and risk tolerance
- Comparing rating scales between S&P/Fitch (BBB-) and Moody's (Baa3) systems
- Recognizing the two primary rating agencies (Moody's and S&P) and their different rating scales
Regulatory Limits
| Description | Limit | Notes |
|---|---|---|
| Investment-grade minimum (S&P/Fitch) | BBB- | Lowest rating still considered investment-grade; adequate capacity to meet obligations |
| Investment-grade minimum (Moody's) | Baa3 | Moody's equivalent to BBB-; threshold between investment-grade and speculative |
| Highest quality rating (S&P/Fitch) | AAA | Extremely strong capacity to meet financial commitments; lowest default risk |
| Highest quality rating (Moody's) | Aaa | Moody's equivalent to AAA; judged to be of the highest quality with minimal risk |
| High-yield threshold (S&P/Fitch) | BB+ or lower | Speculative-grade bonds; below investment-grade with elevated default risk |
| High-yield threshold (Moody's) | Ba1 or lower | Moody's speculative-grade; judged to have speculative characteristics |
Example Exam Questions
Test your understanding with these practice questions. Select an answer to see the explanation.
Jennifer is a portfolio manager for a pension fund with a strict policy requiring all bond holdings to maintain investment-grade status. The fund owns $5 million in corporate bonds from Company XYZ currently rated BBB by S&P. S&P announces it is placing these bonds on "negative watch" with a potential downgrade to BB+. What is Jennifer's most appropriate course of action?
B is correct. If the bonds are downgraded from BBB to BB+, they would cross from investment-grade to speculative-grade (high-yield/junk), violating the pension fund's mandate to hold only investment-grade securities. Jennifer must prepare to sell if the downgrade occurs to maintain compliance with the fund's investment policy, even though this may require selling at depressed prices.
A is incorrect because "only one notch" represents the critical threshold between investment-grade and speculative-grade; many institutional investors have strict mandates prohibiting high-yield holdings regardless of proximity to investment-grade. C is incorrect because the fund's policy is based on maintaining investment-grade status; waiting for Moody's creates unnecessary policy violation risk if S&P downgrades first. D is incorrect because buying more bonds facing a likely downgrade increases concentration risk in securities about to violate the fund's policy and likely decline in price.
The Series 65 exam tests understanding of how credit rating changes affect portfolio compliance and fiduciary responsibilities. The investment-grade threshold (BBB-/Baa3) is critical because many institutional mandates prohibit high-yield holdings, causing forced selling when bonds are downgraded across this boundary.
Which of the following represents the minimum credit rating threshold for a bond to be classified as investment-grade by Moody's rating agency?
B is correct. Baa3 is the lowest investment-grade rating from Moody's, equivalent to BBB- from S&P and Fitch. Bonds rated Baa3 or higher are considered investment-grade with adequate capacity to meet financial commitments, though they may be more vulnerable to adverse economic conditions than higher-rated bonds.
A (Baa1) is investment-grade but not the minimum threshold; it's two notches higher than Baa3, equivalent to BBB+ from S&P/Fitch. C (Ba1) is the highest speculative-grade rating from Moody's, one notch below investment-grade; it's equivalent to BB+ from S&P/Fitch. D (BBB-) is the correct investment-grade threshold but for S&P and Fitch rating systems, not Moody's. The distinction between Baa3 and Ba1 represents the critical boundary separating investment-grade from speculative-grade debt.
The Series 65 exam frequently tests knowledge of rating scale differences between agencies. Understanding that Moody's uses Baa3 while S&P/Fitch use BBB- for the same investment-grade threshold is essential for interpreting credit ratings and making suitability determinations.
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Access Free BetaAn investment adviser is categorizing bonds in a client portfolio by credit quality. Which of the following rating combinations correctly identifies bonds as investment-grade?
B is correct. All three ratings (BBB- from S&P, Baa3 from Moody's, BBB- from Fitch) represent the minimum investment-grade threshold. These ratings indicate bonds with adequate capacity to meet financial commitments, though more vulnerable to adverse conditions than higher-rated securities.
A represents the highest speculative-grade ratings (one notch below investment-grade) from all three agencies; these are high-yield bonds, not investment-grade. C represents much lower speculative-grade ratings indicating highly speculative characteristics with significant credit risk. D contains conflicting ratings: S&P (BBB) and Fitch (BBB) are investment-grade, but Moody's (Ba2) is speculative-grade, two notches below the investment-grade threshold; in practice, the lowest rating typically determines market classification and institutional eligibility.
The Series 65 exam tests ability to interpret credit ratings across different agencies and make appropriate investment decisions. Advisers must understand rating equivalencies between agencies to properly assess credit risk and ensure portfolio compliance with client mandates or regulatory requirements.
All of the following statements about credit ratings are accurate EXCEPT
C is correct (the EXCEPT answer). Credit ratings are NOT investment recommendations to buy or sell securities. Ratings assess creditworthiness and default risk only, not whether a bond represents good value at its current market price. A highly rated bond may be overpriced (poor investment), while a lower-rated bond may be undervalued (good investment opportunity).
A is accurate: Moody's, Standard & Poor's, and Fitch are the three dominant credit rating agencies globally, often called the "Big Three." B is accurate: downgrades signal increased default risk, causing investors to demand higher yields (lower prices) to compensate for elevated risk; the inverse relationship means price decreases while yield increases. D is accurate: BBB-/Baa3 represents the minimum investment-grade threshold; bonds rated at or above this level are considered to have adequate capacity to meet obligations, while those below are classified as speculative-grade or high-yield.
The Series 65 exam tests understanding of what credit ratings actually measure versus common misconceptions. Advisers must explain to clients that ratings assess default risk, not investment merit; a bond with a low rating might still be attractive if properly priced to reflect its risk.
A municipal bond is upgraded from A to AA by Standard & Poor's. Which of the following statements about this upgrade are accurate?
1. The bond's market price would likely increase
2. The bond's coupon payment amount would increase
3. The bond's yield would likely decrease
4. The bond remains investment-grade after the upgrade
B is correct. Statements 1, 3, and 4 are accurate.
Statement 1 is TRUE: An upgrade from A to AA signals improved creditworthiness and lower default risk, making the bond more valuable. Increased demand drives the market price higher.
Statement 2 is FALSE: Coupon payment amounts are fixed when the bond is issued and do not change due to rating upgrades or downgrades. The issuer continues making the same dollar coupon payments regardless of rating changes.
Statement 3 is TRUE: As the bond's price increases, its yield decreases (inverse relationship). The fixed coupon payment divided by a higher price results in a lower yield percentage. Investors accept lower yields on higher-rated bonds due to reduced risk.
Statement 4 is TRUE: Both A and AA are well above the investment-grade threshold (BBB-/Baa3). The bond was investment-grade before the upgrade and remains investment-grade after, just with enhanced credit quality.
The Series 65 exam tests understanding of how credit rating changes affect bond pricing dynamics while recognizing which bond characteristics remain fixed. This knowledge is essential for explaining to clients why bond values fluctuate even when the issuer makes all required payments on schedule.
💡 Memory Aid
Think of credit ratings like report cards for borrowers: AAA/Aaa = A+ students (safest), BBB-/Baa3 = C- students (last passing grade before failing), and BB+/Ba1 = F students (junk/high-yield). Remember "Triple-B Minus = Breaking Point" between investment-grade (safe) and speculative-grade (risky). The two primary agencies (Moody's and S&P) grade the bonds, but ratings are NOT buy/sell recommendations, just default risk assessments.
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