The disposable trust fund is also called the capitalization trust fund.

trust fund, also called investment fund, is a collective investment mode of "benefit sharing and risk bearing". It refers to a collective investment trust system in which the unequal funds of most investors who are uncertain in society are pooled through contracts or companies and by issuing fund bonds to form trust assets of a certain scale, which are handed over to specialized investment institutions for diversified investment according to the principle of asset portfolio, and the profits obtained are shared by investors in proportion to their capital contribution and bear corresponding risks.