1. index funds are funds that track the underlying indexes, such as the Shanghai Composite Index and the Shanghai and Shenzhen 300 Index. In that way, no matter whether the stock market goes up or down, almost 95% of the funds have bought constituent stocks that track the index, and fund managers don't have to worry about the stock market. At present, index funds are all open-end funds.

2. Open-end fund means that during working hours, the fund can be redeemed at any time with the net value announced by the fund company. The amount of redemption is the actual value of your fund, and the scale of open-end funds changes at any time. Closed-end funds can not be redeemed, but can only be bought and sold in the secondary market, and the price has a certain relationship with the rise and fall of the secondary market.

3. At present, index funds are all open-end funds. If the fund manager has the ability, it is good to buy stock funds. But at present, most fund managers have different levels and earn less money than indexes, so some people like to buy index funds now.