Open-end funds provide a better incentive mechanism than closed-end funds, because the good performance of open-end funds will attract new investors and the management fee income of fund managers will also increase. According to relevant public information, open-end fund, also known as * * * fund, refers to a fund operation mode that fund sponsors can sell fund shares or shares to investors at any time according to their needs when setting up a fund, and can redeem the issued fund shares or shares at the request of investors.