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http://www.survivalblog.com/2007/07/cdo_pik_satisfaction_guarantee.html
CDO PIK: Satisfaction Guaranteed or Double Your Trash Back
When I attended the U.S. Army Northern Warfare School back in 1980, I was amused to see that all of the trash dumpsters at Fort Greeley, Alaska were stenciled with "Satisfaction Guaranteed or Double Your Trash Back". I was reminded of this slogan the other day when I was doing some reading about the unfolding derivatives fiasco. I'll get back to the quip about trash near the end of this blog entry.
Let me start with some background: Just like in the traditional bond world, with Collateralized Debt Obligations (CDOs) it is always the holder of the highest rated ("senior") paper that gets paid first. Each grade level, "class", "slice" or "tranche" has its own risk level. Starting from the bottom, the lowest level tranche and then moderate risk "mezzanines" have to successively support the more senior tranches. The very lowest level tranches (called "junk" or even "toxic waste" in the bond world) are the riskiest. In a default situation, those investors holding paper in the lower level tranches will probably get nothing, or perhaps 5 cents on the dollar if they are lucky.
Now here is where it gets interesting: Some of the folks that have established the tranche ratings for CDOs for the past few years have played a little fast and loose with their terminology, effectively over-rating them. A lot of "B" rated CDO paper really should have been rated "BB", or even "BBB". Indirectly, this has made the investments even riskier, because lower rated tranches have higher margin ("leverage") requirements. When an investment goes bad, the degree of risk is directly proportional to the amount leverage employed. Highly leveraged investments can "go south" in spectacular ways. It isn't unusual in the CDO world for some tranches to\ use 25-to-1 or even 30-to-1 leverage.