Stock markets are known as stock markets and stock trading market. Stock exchanges are markets where government and industry can raise long-term capital and where investors can buy and sell securities. Stock exchanges developed in response to the demand for funds to finance investments (especially initially) in foreign trade projects. The world has changed dramatically in recent years and new markets have emerged to compete with existing new markets. The following bar chart below details the relative size of emerging stock markets around the world based on total number of stocks (market capitalization). The stock market has two markets where the primary market, companies issue new shares and the secondary market where all the transactions take place. An efficient stock market is described in the as "one in which information is processed quickly and accurately and where the sharing process accurately reflects all relevant information." In simpler terms, prices indicate the best estimate or true value of stocks in the market consistently. In the simplest way, efficient stock markets are important because they channel citizens' savings and those of other countries. If the country has a well-managed, efficient and quality system of exchange towards production and productive services and, if it is efficient, the stock market channels this money to the areas that need it most. The efficiency of the stock market is an important aspect for every country and contributes greatly to the performance of its economy; therefore it is essential to be efficient in every possible aspect. Over the past few decades, the question has been “whether stock markets are really efficient.” In 1970, Fama published three different rating levels defining which markets were efficient, and this theory holds that the price of an asset is reflected by all prices. information published