An investment-grade credit rating is a designation given to a bond or other debt instrument by credit rating agencies. These ratings assess the creditworthiness of an issuer, typically a corporation or government, and indicate the likelihood that the issuer will default on its debt payments. Investment-grade ratings are considered low-risk and are attractive to investors seeking more stable and less risky fixed-income investments. In this extensive article, we will delve into the concept of investment-grade credit ratings, the criteria used by credit rating agencies, and the significance of these ratings in the financial markets. Table of Contents: 1. Introduction Definition…