ELI5: Explain Like I'm 5

Collective trust fund

A collective trust fund is when a group of people puts their money together and invests it in a shared fund. This fund can be used to do something, like buy a house or make an investment in a company. By putting their money together, the group of people is able to put more money into the fund than if each person put their money in separately. This means the fund has a better chance of doing well and making money for the group.