Netherlands-based Rabobank has lost its triple-A rating from Standard & Poor's, which it had held for 30 years, becoming the latest casualty of changes made by the ratings agency to its methodology for assessing the creditworthiness of banks.

Rabobank was yesterday downgraded to AA stable by S&P. The bank has an AA2 ratings at Moody's and has been rated as AA+ by Fitch since 2002.