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CMBS Conduit Ratings Remain Stable; Downgrades are Moderating

North American conduit CMBS rating performance remains broadly resilient, although credit divergence across vintages and rating categories has become more pronounced, Fitch Ratings said Tuesday Affirmations continued to represent the majority of rating actions, averaging 80% by class count since 2023. Including classes that paid in full (PIF), 87% of all rating actions have been affirmations or PIF over the same period.

Downgrades are moderating, declining to 13.9% as of March. They peaked at 15.1% in 2025, driven by asset performance and valuation deterioration, rising delinquencies and Fitch’s proactive risk-based reviews. Ninety-one percent of downgrades between 2012 and the first quarter of 2026 stemmed from pre-pandemic vintages.

Investment-grade classes remain the most stable, Fitch said in its North American CMBS Conduit Ratings Transition Monitor: June 2026. Eighty-six percent have PIF or maintained their original rating and only 2.5% of classes originally rated ‘AAAsf’ have been downgraded since 2012.

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About Paul Bubny

Paul Bubny serves as Senior Content Director for Connect Commercial Real Estate, a role to which he brings 16-plus years’ experience covering the commercial real estate industry and 30-plus years in business-to-business journalism. In this capacity, he oversees daily operations while also reporting on both local/regional markets and national trends, covering individual transactions across all property types, as well as delving into broader subject matter. He produces 7-10 daily news stories per day and works with the Connect team and clients to develop longer-form content, ranging from Q&As to thought-leadership pieces. Prior to joining Connect, Paul was Managing Editor for both Real Estate Forum and GlobeSt.com at American Lawyer Media, where he oversaw operations at both publications while also producing daily news and feature-length articles. His tenure in B2B publishing stretches back into the print era, and he has served as Editor in Chief on four national trade publications. Since 1999, Paul has volunteered as the newsletter editor of passenger rail advocacy groups (one national, one local).

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