This year, the markets have experienced constant volatility. (Infobase)

Bearish session for the Mexican S&P/BMV CPI index, which starts the day on Thursday March 2 with declines in the 0.7%until the 53,099.59 dots, after the start of the opening session. If we compare the figure with the previous days, the Mexican S&P/BMV IPC index reverses the course of the previous session, where it had obtained an increase of 0.48%, without being able to establish a stable trend in recent days.

Over the past seven days, the Mexican S&P/BMV IPC index has increased by 0.03% even if, on the contrary, from one year to the next, it always maintains a decrease in 0.8%. The Mexican S&P/BMV IPC index is 3.74% below its maximum this year (55,164.01 points) and a 8.38% above its minimum score for the current year (48,993.24 points).

a stock market index is an indicator that shows how the value of a set of assets is changingit therefore takes data from different companies or sectors of a market fragment.

These indicators are mainly used by the exchanges of each country and each of them can be integrated by companies with specific characteristics like having a similar market capitalization or belonging to the same industry, there are also some indices that only consider a handful of stocks to determine their value or others that consider hundreds of stocks.

Stock indices serve as indicator of confidence in stock market, business confidence, health of national and global economy and stock investment performance and shares of an entity. If investors lack confidence, stock prices will tend to fall.

They are also working to measure the performance of an asset manager and they allow investors to have comparisons between profitability and risk; measure the opportunities of a financial asset or create portfolios.

These types of indicators began to be used at the end of the 19th century after the journalist Charles H. Dow. To see carefully how company stocks tended to rise or fall together in price, he therefore created two indices: one that contained the 20 largest railroad companies (since that was the largest industry at the time), as well as 12 shares of other types of companies

Currently, in our economy, there are various indices and they can cluster based on their geography, sectors, company size or even asset classFor example, the American Nasdaq index is made up of the 100 largest companies mainly related to technology such as Apple (AAPL), Microsoft (MSFT), Amazon (AMZN), Facebook (FB), Alphabet (GOOG), Tesla (TSLA ), Nvidia (NVDA), PayPal (PYPL), Comcast (CMCSA), Adobe (ADBE).

Each stock index has its own calculation method, but the main component is the market capitalization of each company that incorporates it. This is obtained by multiplying the daily value of the bond in the corresponding stock market by the total number of shares outstanding in the market.

Listed companies are required to present a balance sheet of its composition. This report must be submitted every three or six months, as the case may be.

Reading a stock market index also means being attentive to its evolution over time. Current indices always start with a fixed value based on security prices on their start date, but not everyone follows this method. So it can be confusing.

If one index rises 500 points in one day, while another only gains 20, it may seem that the former has performed better. However, if the first started the day at 30,000 points and the other at 300, it can be deduced that in percentage terms the gains of the second were higher.

Between the main stock indices of the American Union is the Dow Jones Industrial Average, better known as the Dow Jones, made up of 30 companies. Likewise, the S&P500, which includes 500 of the largest companies on the New York Stock Exchange. Finally comes the Nasdaq 100which includes 100 of the largest non-financial companies.

On the other hand, the most important indices of Europe are the Euro Stoxx 50, which covers the 50 largest companies in the euro area. On the other hand, the DAX 30, the main German index containing the most outstanding companies on the Frankfurt Stock Exchange; there FTSE100 the London Stock Exchange; he CAC 40 of the Paris Stock Exchange; and the IBEX 35of the Spanish stock exchange.

In the asian continentwe have the Nikki 225, made up of the 225 largest companies on the Tokyo Stock Exchange. There is also the SSE composite index, which is listed as the strongest in China, made up of the most important companies on the Shanghai Stock Exchange. The same role played by the Hang Seung Index in Hong Kong and the KOSPI in South Korea.

As it concerns Latin Americayou have the IPCwhich contains the 35 most prestigious companies on the Mexican Stock Exchange (BMV). At least a third of them are part of the estate of tycoon Carlos Slim.

Another is the Bovespa, composed of the 50 most important companies of the Sao Paulo Stock Exchange; he Merval from Argentina; he IPSA From Chile; he MSCI COLCAP Columbia; he IBC of Caracas, made up of 6 companies from Venezuela.

Finally, there are other types of global stock indices such as the MSCI Latin Americawhich includes the 137 most important companies from Brazil, Chile, Colombia, Mexico and Peru.

Likewise, there is MSCI World, which brings together 1,600 companies from 23 developed countries; he MSCI Emerging Markets, made up of more than 800 companies from developing countries; and the S&P Global 100made up of the 100 most powerful multinational corporations on the entire planet.

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