by Calculated Risk on 2/22/2008 12:06:00 PM

CNBC reports: Is Time Running Out for Bond Insurers?

The decision by the big ratings agencies, Moody's, Standard & Poor's and Fitch is imminent, and at least one of the raters could make an announcement sometime today.
...
[A] downgrade of MBIA and Ambac could pose big problems for the banks that hold bonds they insure. Analyst Meredith Whitney said on CNBC yesterday that the downgrades could cause writedowns of another $75 billion at the big banks.
emphasis added