A mortgage-backed security (MBS) is an ABS where the specific assets behind the security are mortgages. A collateralised debt obligation (CDO) is an ABS where the specific assets behind the security are bonds, often a pool of MBS.

Mortgage-backed securities (MBS) are fixed-income securities that utilize mortgage loans as collateral and the source of funds for payments on the security. The creation of MBS begins with a financial institution such as a bank or credit union extend- ing a mortgage loan to a borrower.

A Mortgage-backed Security (MBS) is a debt security that is collateralized by a mortgage or a collection of mortgages. An MBS is an asset-backed security that is traded on the secondary market, and that enables investors to profit from the mortgage business without the need to directly buy or sell home loans.

A credit default swap (CDS) contract is bound to a loan instrument, such as municipal bonds, corporate debt, or a mortgage-backed security (MBS). The seller of the CDS agrees to compensate the buyer in the event of the loan's default until the maturity date of the CDS contract.