The so-called ABC behind the fund means that the name of the open-end fund is marked with a, b, c and other different marks. The three types of funds are actually the same fund (as you can see, Bank of Communications and Agricultural Bank of China increase profits), but there are some differences in the subscription (subscription) rate and the disclosure of the fund's net value: the subscription (subscription) rate is different, and Class A is the front-end charging mode, and the fund is paid in one lump sum when subscribed; Class B is the back-end charging mode, which does not charge at the time of subscription and charges at the time of redemption; Class c charging mode, that is, no subscription fee is charged, but sales service fee is charged. ☆ Different fund codes and different charging modes have different fund codes. ☆ The net fund value reveals that different categories A and B belong to one-time charges, while category C charges are accrued every day.