Standard & Poor's has cut the credit ratings of 15 of the world's biggest banks - mostly in Europe and the United States - in the first wave of actions under its new, tougher, ratings criteria.
In January S&P, stung by the spectacular failure of a number of highly rated institutions in the global financial crisis, announced plans to revise its global rating criteria for banks.
The result is a series of ratings revisions on hundreds of the world's banks. The revisions are being released in batches and it expects to report on Australia's big four banks - Westpac, ANZ Bank, National Australia Bank and Commonwealth Bank of Australia - before the middle of next month.
S&P said that JPMorgan Chase & Co, Bank of America Corp, Citigroup Inc, Wells Fargo & Co, Goldman Sachs Group, Morgan Stanley, Barclays Plc, HSBC Holdings, and UBS AG, were among the banks that had their ratings cut by one notch. The agency left the ratings of 20 banks unchanged and raised the ratings of two.
S&P said early this month that it would gradually roll out the updated ratings for more than 750 banking companies worldwide, starting with announcements about the biggest banks.