2017165438+123 October, A shares opened lower and went lower, and the whole line was deeply adjusted. The Shanghai Composite Index fell below 3,400 points, the biggest one-day drop in the year. The three major stock indexes in Shenzhen, which took the lead in the previous trading day, fell more than 3% simultaneously.
In order to adapt to the development pattern of Shanghai's securities market, the Shanghai index system, with Shanghai Composite Index, Shanghai 50 Index, Shanghai 180 Index, Shanghai 380 Index, Shanghai government bond index, Shanghai Corporate Bond Index and Shanghai Fund Index as its core, scientifically represents the market structure and change characteristics of Shanghai's securities market with rich levels, extensive industries and expanded varieties.
The Shanghai Composite Index determines whether the stock price will go up or down by comparing the daily closing price with the previous day's closing price. Generally, it is indicated by "+"-"on the bulletin board above the trading desk. The percentage range of the latest stock price of the day compared with the previous day's closing price (or the previous day's closing index) is positive, negative or flat.
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The index system of Shanghai Stock Exchange, with corporate bonds and Shanghai Stock Exchange funds as the core, scientifically represents the market structure and change characteristics of Shanghai Stock Exchange with rich levels, wide industries and expanded varieties, which is convenient for multi-dimensional analysis of market participants, enhances the popularity of sample enterprises and guides the rational allocation of market funds.
A large number of industry, theme, style and strategy indexes derived from the Shanghai Stock Exchange index system provide more and more professional trading varieties and investment methods for the market, and improve the liquidity and effectiveness of the market.
The new Shanghai Composite Index is an index released by China stock market authorities to reflect the overall situation of the company after the implementation of the share-trading reform. With the comprehensive promotion of the share-trading reform, new sample stocks will continue to join the new Shanghai Composite Index. In the near future, with the completion of share reform by most listed companies in the market, the new Shanghai Composite Index will gradually become the core index that dominates the market.
Baidu Encyclopedia-Shanghai Composite Index