The credit rating of a security is an assessment of the financial stability and ability of the issuer (e.g., a company, bank, or government) to meet its debt obligations, including timely interest payments and principal repayment. These ratings are assigned by independent rating agencies such as Moody’s, Standard & Poor’s (S&P), and Fitch Ratings, and serve as a guide for investors in evaluating the risks associated with purchasing a particular security.
Credit ratings are usually expressed in a letter scale, where:
  • High Ratings (e.g., AAA, AA) indicate a low level of risk and a high likelihood that the issuer will fulfill its obligations on time and in full. Such securities are considered safe investments.
  • Medium Ratings (e.g., A, BBB) indicate a moderate level of risk. Investors can expect the issuer to meet its obligations, but these securities may be more vulnerable to adverse economic conditions.
  • Low Ratings (e.g., BB, B, CCC) signal a high level of risk and potential payment issues. Such securities are often called “junk bonds” due to their increased volatility and default risk.
  • The lowest Ratings (e.g., D) indicate that the issuer is in default or near default, and investors are likely to lose their investments.
Credit ratings help investors make informed decisions by aligning potential investment returns with the level of risk.