ETF fund, namely "exchange traded fund", is a special type of open-end fund. It combines the advantages of closed-end funds and open-end funds. Investors can buy or redeem fund shares from fund management companies, and at the same time they can buy and sell ETF shares at market prices in the securities market like closed-end funds. However, the purchase and redemption must be exchanged for a basket of shares or a basket of shares.

Index fund is a fund that invests in index stocks, that is, by buying some or all of the stocks contained in an index, the investment portfolio of index fund is constructed, in order to make the changing trend of this portfolio consistent with the index, so as to obtain roughly the same rate of return as the index.

The Shanghai and Shenzhen 300 Index Fund is an index fund that tracks the Shanghai and Shenzhen 300 Index.

ETF funds and index funds are two types of funds, which are classified in different ways and are not inclusive of each other. Funds can be etf funds or index funds.

Harvest Shanghai and Shenzhen 300 Fund is an index fund, which tracks the Shanghai and Shenzhen 300 Index and is also a LOF fund. It can be traded on and off the market.