CDOs and the Mortgage Market: Lessons from The Big Short

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In the film The Big Short banks fail because of what is known as Collateralized Debt Obligation (CDO). Centered around these CDOs, the mortgage market fails which generated wealth for many of the characters inside the film. The mess of the CDOs was created by everyone who was involved in this process including homeowners, lenders, central banks, and credit rating agencies. Recently, there seems to be a rise in new CDOs which may lead to the same end. Collateralized Debt Obligations are what banks use to repackage individual loans such as auto loans, credit card debt, mortgages or corporate debt, to sell to investors on a secondary market. In the case of mortgages, these CDOs are known as mortgaged backed securities (MBS). Rather than directly lending mortgages to individuals, small banks act as middlemen to facilitate the exchange between investment markets and the individual. These CDOs are separated into what is known as tranches, or portions, each with their own rating. The ratings range from AAA to AA to BB to unrated tranches. The …show more content…

Unlike most other bonds, the mortgaged backed securities were made up of a bunch of bonds pooled together. Because of that, the rate at which the failure of these bonds were not suspected to be high as a couple failing would not likely result in the failures of the rest. It was believed that a mass failure would not happen. This is where Credit Default Swaps (CDS) come in. Similar to insurance policies, CDSs are bought to insure CDOs in case of failure. Up until the failure occurs, the buyer of these swaps are required to pay a premium. In turn, one of the causes of the financial crisis is the lack of regulation and lack of risk-detection that occurred in these subprime, or below good quality, loans. The banks lost in the end; however, they were bailed out by the

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