Whats a C.D.O. (Collateralized dept obligation)?
Wall Street giants like Citigroup and Merrill Lynch have been severely shaken by their losses on an arcane innovation in finance: collateralized dept obligations, or C.D.O.'s.
Worldwide, there is more than $1.3 trillion invested in C.D.O.'s. Residential mortgage-backed securities, or R.M.B.S., make up 56 percent of the assets in C.D.O.'s. So the slump in housing has had a huge ripple effect on these investments.
Here's how a C.D.O. works.
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