Use Datastream (available at Barcelona and Madrid Libraries through LSEG Workspace (formerly Refinitiv Workspace)). Search the Bonds and Convertibles area. Moodys and S&P ratings are shown in the Summary Information report (Single Series - Overview > Summary Information). Also see the Bond Credit Ratings report (Single Series - Report > Bon Credit Rating).
Use Bloomberg (access to Barcelona Library Financial room):
- For Bond Ratings Definitions, type RATD