How is the Shanghai Composite Index calculated?

The SSE 180 Index, SSE 50 Index, etc. are weighted by the adjusted share capital of the constituent stocks, and the calculation formula is:

Index in the reporting period = (adjusted market value of the sample stocks in the reporting period base period) 1000 Wherein, adjusted market capitalization = (stock price adjusted number of shares).

The SSE 180 Financial Stock Index and the SSE 180 Infrastructure Index are calculated using the pie-weighted composite index method, and the formula is as follows:

Index in the reporting period = (adjusted market value of the sample stocks in the reporting period Base period) 1000 Among them, the adjusted market value = (stock price Adjusted number of shares and the upper limit of the weight factor), and the upper limit factor of the weight is between 0 and 1, so that the weight of the sample equity does not exceed 15% (for the SSE 180 Style Index series, the upper limit of the sample equity weight is 10%).

The adjustment of the number of share capital adopts the method of grading and ranking to adjust the share capital of the constituent shares. In accordance with international practice and the opinions of the Expert Committee, the grading method of the SSE Component Index is shown in the table below.

For example, if the proportion of tradable shares (total tradable share capital) is 7% and less than 10%, the tradable share capital is used as the weight; If the circulation ratio of a ** is 35% and falls within the range (30, 40), the corresponding weighted ratio is 40%, and 40% of the total share capital is taken as the weight.

Circulating Ratio (%)10 (10,20] (20,30] (30,40] (40,50] (50,60] (60,70] (70,80] >80 Weighted Ratio (%)Circulating Ratio 20,30,40,50,60,70,80,100.

China's **** index refers to the Shanghai market.

of the "Shanghai Composite Index" and ** of the "SZSE Constituent Index". Shanghai Composite Index: Shanghai ** Exchange.

All listed shares** (including A shares.

and B shares) as a sample, with the issuance volume as the weight (including outstanding share capital and non-tradable share capital), calculated by the weighted average method, with December 19, 1990 as the base date, and the base day index is set at 100 points. SZSE Constituent Stock Index: A stock price index with 1,000 points on July 20, 1994 as the base date and 1,000 points of stock price index from all the ** listed on the Shenzhen Stock Exchange, with the circulating share capital as the weight and the weighted average method as the weighted average method.

1. The Shanghai Composite Index generally refers to the Shanghai Composite Index, which is referred to as the "Shanghai Composite Index" or "Shanghai Composite Index", and its sample stocks are all listed on the Shanghai Stock Exchange, including A shares and B shares, reflecting the changes in the listing of the Shanghai Stock Exchange, and has been officially released since July 15, 1991.

2. Calculation method:

To calculate the index, three factors are taken into account:

The first is sampling, that is, a small number of representative constituent stocks are selected among the many **;

the second is weighted, which is a weighted average of unit price or total value, or an unweighted average;

The third is the calculation procedure, which calculates the arithmetic mean, the geometric mean, or takes into account the ** and the total value.

3. Due to the wide variety of listings, the work of calculating the average or index of all listings is arduous and complex, so people often select several representative samples from the listings and calculate the average or index of these samples. It is used to represent the overall trend and rise and fall of the entire market. There are four things that are often considered when calculating stock price averages or indices:

The sample must be typical and ordinary, and for this reason, the selection of the sample should comprehensively consider its industry distribution, market influence, ** grade, appropriate number and other factors.

The calculation method should be highly adaptable, and can make corresponding adjustments or corrections to the changing index, so that the index or average has a good sensitivity.

It is necessary to have a scientific basis and means for calculation. The caliber of the calculation basis must be unified, generally based on the ** price, but with the increase of the calculation frequency, some are calculated per hour or even shorter.

The base period should be well balanced and representative.

Tips: The above content is for reference only and does not make any suggestions. The relevant products are issued and managed by the corresponding platforms or companies, and the Bank does not assume the responsibility for the investment, redemption and risk management of the products.

Entering the market is risky, and investment needs to be cautious. Before making any investment, you should ensure that you fully understand the investment nature and risks involved in the product, and carefully evaluate the product in detail before making your own judgment on whether to participate in the transaction.

How the weighted average is calculated.

As a simple example, let's say there are 2** stocks in the SSE market, A and B, where A accounts for 90% of the market capitalization and B accounts for 10% of the market capitalization. A rose 10%, the index rose 9%; b rose 10%, the index rose 1%; Both rose 10%, and the index rose 10%. The index represents the comprehensive reaction of all the ** in a market, reflecting the overall market is still bad or bad.

Among them, the base period can be simply understood as the overall point when the index is established, for example, the base period of the Shanghai Composite Index is 100 points.

The base day can be simply understood as the time when the index is established.

Index refers to a reference number compiled by an exchange or financial service institution that indicates changes in the market.

By observing the index, we can have an intuitive understanding of the current rise and fall of the ** ticket market.

1. What are the common indices in China?

Indexes are classified according to their compilation methods and nature, which are basically divided into these five categories: size index, industry index, thematic index, style index and strategy index.

Among these five, the most often in front of everyone is the scale index, such as the well-known "CSI 300" index, which reflects the overall situation of the 300 large enterprises with good representation, good liquidity and active trading in the entire Shanghai market.

Similarly, the "SSE 50" index also belongs to the scale index, which refers to the overall situation of the 50 representative stocks in the Shanghai ** market.

To calculate the ** index, three factors should be considered: first, sampling, that is, a small number of representative constituent stocks are selected from the multitude; the second is weighted, which is a weighted average of unit price or total value, or an unweighted average; The third is the calculation procedure, which calculates the arithmetic mean, the geometric mean, or takes into account the ** and the total value. The Shanghai Composite Index is also calculated in this way.

The industry index actually represents the overall situation of a certain industry. For example, "CSI 300 Pharmaceutical" is an industry index, representing the pharmaceutical industry in the CSI 300, and it also reflects the overall performance of companies in the industry.

2. What is the use of the ** index?

As told us above, the index is representative in the selection of the market, so the index can quickly respond to the overall rise and fall of the market to us, which is also a simple understanding of the heat of the market, and even for the future trend can also be one or two. Specifically, you can click the link below to get professional reports and learn the ideas of analysis: the latest industry research reports are free to share.

The Shanghai Composite Index is a weighted composite stock price index weighted by the number of shares issued in the reporting period.

The calculation formula is: SSE Index = (reporting period ** total market value base period ** total market value) 100

Where: Total Market Value = (Market Price Total Share Capital of a Branch) That is, the total share capital of each branch * Stock Price, and then add and sum it. Each of these shares is each of the shares listed and traded on the Shanghai Stock Exchange**, including A shares and B shares;

The reporting period is the current period in which the SSE Index is calculated;

Algorithm for the total market value of the base period**;

**The index is calculated as follows:

1. The relative method, also known as the average method, is to calculate the ** index of each sample first. Add it up to find the arithmetic mean of the total. The formula is as follows: **index = sum of n samples** index n The Economist general ** index in the UK uses this calculation method;

2. The comprehensive method is to first sum up the base period and reporting period of the sample** respectively, and then compare them to find the ** index. That is: **Index = the sum of the stock prices in the reporting period The sum of the stock prices in the base period is substituted into the number

Stock price index = (8 + 12 + 14 + 18) (5 + 8 + 10 + 15) = 52 38 = that is, the stock price in the reporting period has increased compared with the base period;

3. The weighted index is weighted according to the relative importance of the sample of each period, and its weight can be the number of shares traded, the number of shares issued, etc. By time, the weights can be either base options or reported options.

**Index types are as follows:

1. Stock price index of Shanghai ** Exchange: constituent index; Composite indexes;

2. Stock price index of Shenzhen ** Exchange: constituent index; Composite indexes;

3. CSI Index: CSI 300 Index; CSI Scale Index;

4. Major stock price indices in Hong Kong and Taiwan: including Hang Seng Index, Hang Seng Composite Index Series, Hang Seng Liquidity Composite Index Series, and Hang Seng Liquidity Select Index Series.

An index is an indicative number compiled by an exchange or financial services institution that indicates changes in the market. Investors can then test the effect of their investment and use it to improve market trends. At the same time, the press, company bosses and even political leaders also use this as a reference index to observe and develop the social, political and economic development situation.

Due to the complexity of index calculations and the large variety of indices, it is common to select several representative samples from the listed indices and calculate the average or index of these samples. It is used to represent the overall trend and rise and fall of the entire market.

The calculation method of the Shanghai Composite Index, the Shanghai Composite Index series is calculated using the formula of the weighted composite ** index. Index of the reporting period = (total market capitalization of the constituent stocks in the reporting period Base period) * Index of the base period.

Total Market Capitalization = (Stock Price * Number of Shares Issued) B Shares in the Constituent Stocks** Calculated in USD when calculating the SSE B Shares Index.

The Shanghai ** Stock Exchange Composite Stock Price Index is the main composite stock price index of the Shanghai ** Stock Exchange, which reflects the statistical indicators of the overall trend of listing**.

An index is a statistical relative number of stock prices compiled to measure and reflect the overall level of the market and its changing trend.

The index is a barometer that sensitively reflects the social, political and economic changes in the country (or region) where the market is located. When the index is indicative, it indicates a decrease in the average level.

Stock index, the full name is the index **, can also be called the stock price index, futures index, refers to the stock price index as the subject of the standardized contract, the two parties agree that at a specific date in the future, according to the size of the pre-determined stock price index, the underlying index can be bought and sold, and the difference between the cash settlement price will be delivered after expiration. As a type of trading, stock index trading has essentially the same characteristics and process as ordinary commodities trading.

The index is an indicator used to reflect the overall change of the sample. The determination of **** is very complicated, because people's judgments on the intrinsic value of an enterprise and the future profit prospects are not the same. Pessimists want to sell, optimists want to buy, and when the buying volume is greater than the selling volume, the **of** will rise; When the buying volume is less than the selling volume, the **is**.

Therefore, the ** and the intrinsic value are more often consistent, but sometimes there is also a divergence. Investors tend to look for those whose intrinsic value is greater than the market, making the index of the index in constant flux.

To put it simply, the Shanghai Composite Index = the total market value of the reporting period ** the total market value of the base period ** 100 ; Among them, the official opening date of the Shanghai ** Stock Exchange - December 19, 1990 is the base period, and all 8 kinds of ** in the market at that time are used as samples, and the ** issuance volume is used as the weight for compilation.

There is no practical point in calculating the index, only by combining the index and the trading volume can you get an idea of the trend.

Hello Dear Kiss, Shanghai Composite Index = Marking Loose Rubber ** Total Market Value Base Period ** Total Market Value 100. Index, to put it simply, is a reference number compiled by an exchange or financial services institution that indicates changes in the market. By observing the index, we can have an intuitive understanding of the current ups and downs of the market.

**The principle of index arrangement is a bit complicated for us, so I won't analyze it in detail here, click the link below to teach you to quickly understand the index: a must-have basic knowledge for novices.