A portfolio (hedge portfolio) that is characterized by specific features such as zero investment and risk-free exposure (inflows and outflows of capital are not allowed). Therefore, such a portfolio needs no additional investments. Changes in the value of this portfolio come from gains made from component assets such as an asset and a money market account. The asset can be traded and resulting profit will be invested in the money-market account. Another example is a collection of options, stocks, and bonds: the option may be replicated in a synthetic manner using the self-financing trading strategy that builds on only stocks and bonds.