Index funds include CSI 300, Standard & Poor's 500, NASDAQ 100, SSE 50, Nikkei 225, GEM, dividend index, fundamental index, CCTV 50 and 50AH. Index fund refers to a fund product that takes a specific index as the target index, takes the constituent stocks of the index as the investment object, builds a portfolio by purchasing all or part of the constituent stocks of the index, and tracks the performance of the target index.

Shanghai and Shenzhen 300: A financial index jointly released by Shanghai and Shenzhen Stock Exchanges on April 8, 2005, which reflects the compilation goal and operation status of the Shanghai and Shenzhen 300 Index, can be used as an evaluation standard of investment performance and provide basic conditions for indexed investment and innovation of index derivative products.

Standard & Poor's 500: It is an authoritative financial analysis institution in the world. It was founded by Mr. Poole at 1860. Provide investors with credit rating, independent analysis and research, investment consulting and other services, including the Standard & Poor's Global 1200 Index, which reflects the performance of the global stock market, and the Standard & Poor's 500 Index, which is the benchmark of the US portfolio index.

Nasdaq 100: It is the English abbreviation of the name of the automatic quotation system created by the National Association of Securities Dealers at 1968. Nasdaq is characterized by collecting and publishing quotations from securities companies that trade unlisted shares over the counter.