On Thursday November 8th 2007 at 12:40 EST, Bloomberg News ran this little story by Cecile Gutscher: Insured CDOs May Have AAA Ratings Cut Four Levels, Fitch Says. Toomre Capital Markets LLC just three hours earlier posted a note entitled Incestuous Mix: Structured Credit, Financial Guarantors and Rating Agencies that was focusing on what might happen if the financial guarantors were downgraded.

Apparently, if you were an investor in collateralized debt obligations that were rated AAA because of guarantees issued by bond insurers including MBIA Inc. and Ambac Financial Group, Fitch Ratings has now decided that the credit ratings may be cut in one swell swoop by as much as four rating levels. According to this Bloomberg article, Fitch rating analyst Thomas Abruzzo said in an interview today that "We expect there could be situations that could lead to downgrades of three to four notches on insured structured-finance CDO transactions."

New York-based Fitch said Nov. 5 it may lower the top ratings of bond insurers after a review that takes into account the CDOs they guarantee. Any bond insurer that fails the new test may be downgraded within a month unless the company is able to raise more capital. ``The bond insurers themselves remain AAA but there is the potential that companies could fall short of capital and also be downgraded, but we don't expect below the AA category,'' Abruzzo said. AA is the third-highest investment grade.

Oh well… There goes another linchpin under the high-grade bond market. No longer can one buy an insured bond and assume that the bond will remain in its original rating category throughout its life cycle. Perhaps someone can now suggest what credit enhanced bonds are really worth??? Does a AAA credit rating really mean anything??? Shouldn't AAA-rated structured finance transactions trade more cheaply than AA-rated corporate debt, or maybe even A-rated corporate debt? Or maybe it really is worth JUNK???

After all, one has to use one of those modern computers to calculate the value of the structured finance security? There is no absolutely transparency like there is in whether a company might be able to pay back its debts! The structured finance market used to have some degree of trust. With these dramatic ratings downgrades in portfolios that traditionally have seen small changes in principal value, is there any question about why there is a complete breakdown in reputation and trust? Widows and orphans bought high-grade bonds because of their high quality and predictable cash flows. What is a rating worth if it can go from AAA to BB on one Friday afternoon? What the heck good is bond insurance if a rating agency can suddenly bring down the rating of the insurer and all of the insured bonds that it backs? In short, What good is a credit rating?

Maybe the rating agencies should truly adopt their First Amendment rights and say "We kinda sorta think that maybe at this point in time this security has characteristics sorta like a AAA corporate bond not issued by the federal government. However, we reserve the right to change our minds at any time and investors never ever should not use our credit assessments to make any investment decisions."

Of course, like good hearted souls, the rating agencies still would want to be paid for issuing their coveted rating opinions and never ever would want to share non-public information gathered from the issuers with other market participants. After all, their reputations and credit assessments are absolutely AAA rock solid!!

AAA to BB in one fell swoop… AAA down four rating notches in another… Pretty soon AAA truly is going to mean never ever to be trusted again.

Toomre Capital Markets is truly amazed by how reactive the rating agencies have been in the structured finance sector. Did they have no idea that ratings needed to be tracked throughout the lifetime of the transaction? Reader comments and thoughts are most welcome.