Custodian of funds: those banks, not all banks are qualified to trust funds;

Fund share holders: this is the general public, including some institutions;

People who buy funds will give the money they buy to the fund company, and the fund company will send fund managers to manage the money and use the money to help the people who buy funds invest in stocks or bonds.

In order to prevent fund managers or fund companies from misappropriating the money of people who buy funds, it is stipulated that fund companies should find a bank to trust the money. In other words, money is placed in banks, and fund companies can only transfer funds from banks for investment, and banks can play a certain role in supervision and management. At present, banks can sell funds on commission, that is, banks can sell funds of fund companies on commission. This is another concept.