Tranches are sections created from a pool of securities, typically debt instruments such as bonds or mortgages, that are divvied up by risk, time to maturity, or other features in order to be vendible to different investors. Each portion, or tranche, of a securitized or organized merchandise is one of several related securities offered at the same time but with changing risks, rewards and maturities to demand to a varied range of different investors. Tranches in Mortgage-Backed Securities A tranche is a public economic structure for securitized debt products, such as a collateralized debt obligation (CDO), which pools together a gathering of cash flow-making assets—such as mortgages, bonds, and loans—or a mortgage-backed security (MBS). An MBS is made of numerous mortgage pools that have a wide variability of loans, from safe loans with lower interest rates to risky loans with higher rates. Each precise mortgage pool has its personal time to maturity, which factors into the risk and reward benefits. Therefore, tranches are made to divide up the different mortgage shapes into shares that have financial terms appropriate for explicit investors.