Fitch Ratings announced it is upgrading 30 portions of collateralized loan obligations (CLOs). This action follows a prior assessment where Fitch indicated it was considering upgrades for hundreds of other tranches. The agency is applying a new methodology in its rating process.

This move signifies a potential shift in how CLOs are evaluated and rated. The inclusion of these 30 tranches in the upgrade list suggests that Fitch's updated framework may be identifying more favorable risk profiles within these complex debt instruments.

The broader context involves a significant number of CLO tranches already under review for potential upgrades. Fitch's latest announcement adds to this ongoing process, indicating a sustained effort to reassess and potentially improve the ratings of these securities based on its revised analytical approach.