The fund CSI 300 refers to the CSI 300 Fund with the code of 5 10300, which is an index fund.

What is the Shanghai and Shenzhen 300 Index? After all, there are only 50 places in the SSE 50 Index. Although it represents large-cap stocks, the number of large domestic enterprises is far more than 50, and the SSE 50 index is only selected from the Shanghai Stock Exchange, regardless of the stocks of the Shenzhen Stock Exchange.

The Shanghai and Shenzhen 300 Index is just to solve the above problems. It consists of 300 stocks with the largest scale and the best liquidity selected from Shanghai Stock Exchange and Shenzhen Stock Exchange, which comprehensively reflects the overall performance of listed stock prices in China A-share market. The number of constituent stocks is more than 50 than that of the Shanghai Stock Exchange, and most of them are large companies. From the perspective of market value scale, the index sample covers about 60% of the market value of Shanghai and Shenzhen stock markets, so the Shanghai and Shenzhen 300 Index is also considered as the most representative index in China.

Characteristics of the Shanghai and Shenzhen 300 Index: Like the SSE 50, the Shanghai and Shenzhen 300 Index is dominated by large-cap stocks. Because the number has expanded to 300, the coverage is wider. Moreover, in comparison, SSE 50 and CSI 300 also contain the stocks of Shenzhen Stock Exchange, which can better represent the domestic large-cap stock market. By carefully comparing the constituent stocks of SSE 50 and CSI 300, it is found that there is a complete relationship between inclusion and inclusion. The 50 constituent stocks of SSE 50 are also among the constituent stocks of CSI 300, with no less than one. Therefore, SSE 50 and CSI 300 can be expressed by the mathematical relationship "SSE 50_ CSI 300".

Shanghai and Shenzhen 300 Index Fund: Because the Shanghai and Shenzhen 300 Index is the most representative index, it has great influence. Almost every fund company has a fund that tracks the Shanghai and Shenzhen 300 Index. In many different index funds that track the same index, we will find that the net value is very different. Have a plenty of 4 yuan, have a plenty of 1 yuan. This is mainly because the time when the fund was established is different, and there is not much difference. When choosing an index fund, we should also consider the scale of the index. You can go to the private equity network to buy private equity funds. They are free. If the index fund is too small, the probability of facing liquidation will be greater. Although the liquidation of the fund does not mean that the investors have lost their money, in fact, it is forced to redeem according to the net value at the time of liquidation, but this will lead to the interruption of our investment behavior. Therefore, when making a fixed investment, we should at least pay attention to the scale of index funds, and managers should choose the scale of 1 100 million.