Chinese investors and asset managers are reviewing their bond portfolios to identify issuers that may face rating downgrades, according to people familiar with the matter cited by Bloomberg. The reviews come as Chinese regulators increase scrutiny of credit ratings, including efforts to reduce the over-concentration of top-tier “AAA” ratings among bond issuers.

The Times of India reports that China’s financial watchdogs are tightening credit standards, pushing investors to reassess holdings for potential downgrades. It says the goal is to curb an unusually high number of AAA-rated issuers, a situation highlighted by recent corporate defaults. The outlet also notes that the People’s Bank of China is introducing or considering new metrics that could affect how issuers are evaluated, including factors related to yield spreads.

Together, the reports indicate that heightened rating oversight is prompting portfolio reviews and could lead to adjustments across China’s domestic bond market, though the specific scope and timing of any rating changes are not detailed in the available summaries.