The SSE Index is a weighted average of all stocks listed on the Shanghai Stock Exchange, and the GEM Index is a weighted average of all stocks listed on the GEM.

1. SSE Index "SSE Index" or "SSE Composite Index" is the abbreviation of Shanghai Securities Composite Index. Its sample stocks are all stocks listed on the Shanghai Stock Exchange, including A shares and B shares, reflecting the stocks listed on the Shanghai Stock Exchange.

Price changes have been officially released since July 15, 1991.

The official name of A-shares is RMB ordinary stocks. They are issued by companies registered in China and listed domestically. The face value is expressed in RMB and are available to domestic institutions, organizations or individuals (from April 1, 2013, residents of Hong Kong, Macao and Taiwan can open A-shares in China).

A-share account) common stocks subscribed and traded in RMB.

The official name of B shares is RMB special stocks.

It is a foreign-invested stock with a nominal value in RMB, subscribed and traded in foreign currencies, and listed and traded on stock exchanges in China (Shanghai, Shenzhen). The registration place and listing place of B-share companies are both in China.

The English letters A and B have no practical meaning and are only used to distinguish RMB ordinary stocks and RMB special stocks.

The Shanghai Composite Index reflects the trend of Shanghai Stock Exchange stocks, and stocks are a component of a joint-stock company's capital and can be transferred and bought and sold. They are the main long-term credit instrument in the capital market, are part of the ownership of a joint-stock company, and are also issued ownership certificates.

Therefore, the fundamental factor that affects the Shanghai Composite Index is the operating status of companies listed on the exchange. Various financial indicators of listed companies can be used as a reflection of the company's operating status.

2. In order to more comprehensively reflect the situation of the GEM market, provide investors with more tradable index products and financial derivatives, the GEM Index will promote index fund products and enrich the variety of securities market products. Shenzhen Stock Exchange

The GEM Index will be officially compiled and released on June 1, 2010.

The index is compiled with reference to the compilation methods and international practices of the SZSE Component Index and SZSE 100 Index (including total return index and pure price index).

At this point, the ChiNext Index, the Shenzhen Stock Exchange Component Index, and the Small and Medium-sized Enterprise Board Index*** together constitute the core index that reflects the operation of stocks listed on the Shenzhen Stock Exchange.

The GEM stock code starts with 300. For example, the Pathfinder stock code is: 300005.

The GEM index uses the starting date as a base point, calculates the stock price of that day one by one based on the circulating market value of all GEM stocks, adds a weighted average, and compares it with the "base point" on the opening day.