The CSI 300 Index is a financial indicator jointly released by the Shanghai and Shenzhen Stock Exchanges on April 8, 2005 that reflects the compilation goals and operating conditions of the CSI 300 Index, and can be used as an evaluation of investment performance. Standards provide basic conditions for index investment and index derivative product innovation.

1. The abbreviation of the CSI 300 Index: CSI 300

2. The CSI 300 Index jointly compiled by the Shanghai Stock Exchange and the Shenzhen Stock Exchange was launched on April 8, 2005. Officially released on the same day.

3. Index code: Shanghai Stock Exchange 000300 Shenzhen Stock Exchange 399300

4. The Shanghai and Shenzhen Stock Exchange 300 Index uses December 31, 2004 as the base day, and the base day point is 1,000 points.

5. The CSI 300 Index selects 300 A-shares from the Shanghai and Shenzhen stock markets as samples, including 179 stocks in the Shanghai stock market and 121 stocks in the Shenzhen stock market. The sample selection criteria are stocks with large scale and good liquidity.

6. The CSI 300 Index samples cover about 60% of the market capitalization of the Shanghai and Shenzhen markets, and has good market representativeness.

Compilation requirements of the CSI 300

1. The CSI 300 Index is based on December 31, 2004, with a base point of 1,000 points. Its calculation is based on adjusted equity as the weight. , calculated using the Pasch weighted composite price index formula. Among them, the adjusted share capital is obtained according to the hierarchical and stalling method.

2. If any constituent stocks pay dividends, the index will not be adjusted and will be allowed to fall naturally.

3. The CSI 300 Index will make regular adjustments to the constituent stocks. The adjustment principles are:

a. In principle, the index constituent stocks are adjusted once every six months, usually in early January and Adjustments will be implemented in early July and the adjustment plan will be announced two weeks in advance.

b. The proportion of each adjustment shall not exceed 10%. The buffer is set for sample adjustment. New samples ranked within 240 will be given priority, and old samples ranked before 360 ??will be retained first.

c. In principle, stocks with losses in their latest financial report will not be included in the newly selected samples, unless the stock affects the representativeness of the index.

Since the CSI 300 Index covers the two securities markets of Shanghai and Shenzhen and has good overall market representation, it has the highest voice in the selection of the underlying index of China's stock index futures and has become the underlying object of China's stock index futures. .

Index code:

Shanghai 000300

Shenzhen 399300.

The CSI 300 Index takes December 31, 2004 as the base day, and the base day point is 1,000 points.

The CSI 300 Index selects 300 A-shares from the Shanghai and Shenzhen stock markets as samples, including 179 stocks in the Shanghai stock market and 121 stocks in the Shenzhen stock market.

The sample selection criteria are stocks with large scale and good liquidity.

The samples of the CSI 300 Index cover about 60% of the market value of the Shanghai and Shenzhen markets, and have good market representation.

Compilation method of the CSI 300

The compilation goal of the CSI 300 Index is to reflect the overview and operating conditions of stock price changes in China's securities market, and to serve as an evaluation standard for investment performance. Provide basic conditions for index investment and index derivative product innovation.

Sample selection space for index component stocks: the listing and trading time is more than one quarter, unless the daily average total market value of A-shares since the listing of the stock ranks among the top 30 of all Shanghai and Shenzhen A-shares; non-ST, * ST stocks are non-suspended stocks; the company's operating conditions are good, there are no major violations of laws and regulations in the past year, and there are no major problems in the financial report; there are no obvious abnormal fluctuations or market manipulation in the stock price; other stocks that have been determined by experts to be unable to enter the index are excluded. The sampling standard is to select stocks with large scale and good liquidity as sample stocks.

The sample selection method of the CSI 300 Index is to rank the average daily trading volume of the stocks in the sample space in the most recent year (new stocks since their listing) from high to low, eliminate the bottom 50% of the stocks, and then The remaining stocks are ranked from high to low according to their daily average total market capitalization, and the top 300 stocks are selected as sample stocks.

Based on the principle of combining sample stability and dynamic tracking, the CSI 300 Index adjusts its constituent stocks every six months, with the proportion of each adjustment generally not exceeding 10%. The buffer is set for sample adjustment. New samples ranked within 240 will be given priority, and old samples ranked before 360 ??will be retained first. When a sample stock company delists, it will be removed from the index sample starting from the delisting date and replaced by the highest-ranking stock in the candidate sample at the time of the latest regular index adjustment that has not yet been transferred to the index.

The index uses adjusted equity as the weight and is calculated using the Pasch weighted comprehensive price index formula. Among them, the adjusted share capital is obtained according to the hierarchical and stalling method.

For example, if the circulating share ratio (circulating share capital/total share capital) of a certain stock is 7%, which is less than 20%, the circulating share capital will be used as the weight; if the circulating share ratio of a certain stock is 35% and falls within the interval (30, 40), the corresponding The weighting ratio is 40%, then 40% of the total share capital is used as the weight