A synthetic CDO is a variation of a CDO (collateralized debt obligation) that generally uses credit default swaps and other derivatives to obtain its investment goals.[1] As such, it is a complex derivative financial security sometimes described as a bet on the performance of other mortgage (or other) products, rather than a real mortgage security.[2] The value and payment stream of a synthetic CDO is derived not from cash assets, like mortgages or credit card payments – as in the case of a regular or "cash" CDO—but from premiums paying for credit default swap "insurance" on the possibility of default of some defined set of "reference" securities—based on cash assets. The insurance-buying "counterparties" may own the "reference" securities and be managing the risk of their default, or may be speculators who've calculated that the securities will default.
Synthetics thrived for a brief time because they were cheaper and easier to create than traditional CDOs, whose raw material—mortgages—was beginning to dry up.[3] In 2005, the synthetic CDO market in corporate bonds spread to the mortgage-backed securities market,[4] where the counterparties providing the payment stream were primarily hedge funds or investment banks hedging, or often betting that certain debt the synthetic CDO referenced – usually "tranches" of subprime home mortgages – would default. Synthetic issuance jumped from $15 billion in 2005 to $61 billion in 2006,[5] when synthetics became the dominant form of CDOs in the US,[6] valued "notionally"[7] at $5 trillion by the end of the year according to one estimate.[6]
Synthetic CDOs are controversial because of their role in the subprime mortgage crisis. They enabled large wagers to be made on the value of mortgage-related securities, which critics argued may have contributed to lower lending standards and fraud.[8]
Synthetic CDOs have been criticized for serving as a way of hiding short position of bets against the subprime mortgages from unsuspecting triple-A seeking investors,[9] and contributing to the 2007-2009 financial crisis by amplifying the subprime mortgage housing bubble.[10][11] By 2012 the total notional value of synthetics had been reduced to a couple of billion dollars.[12]
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was invoked but never defined (see the help page).Synthetic CDOs on about $2 billion in debt were sold last year, Bloomberg writes, citing Citigroup data, and CDOs on another $1 billion have been sold so far this year.