Share Market Value is not the value of a specific share of a company. Rather it depicts the value of the whole market. The picture of the entire share market can be observed only through the index. Thus, the valuation of the index would give the Share Market Value.
Share Market Index gives a composite idea about the relevant market. It is created through the selection of a set of shares out of the whole array of stocks which can represent the mood of the overall market. Share indexes work as a source of information for the economy as a whole.
The most common method of valuating the Share Market Index is the Weighted Average Market Capitalization Method. In this method each of the outstanding shares comprising the index are attached with a weight in accordance with its market capitalization.
Market Capitalization of a Company = (Stock Price) x (Total Number of Outstanding Shares Of the Company)
Market Capitalization measures the value of the company. This helps to categorize different companies into various sizes such as large-cap, mid-cap and small-cap where cap signifies capitalization.
Now, let us take an example to elucidate the weight attachment technique in Weighted Average Market Capitalization Method. Suppose that the market capitalization of all the stocks in an index is 10 million dollars. Now, if the market capitalization of a particular stock is 1 million dollar then the weight to be attached with that stock is 1% of the index.
Share Market Valuation can also be done through Price weighted Index. Here, the valuation of a certain index is done by considering the price of the company shares comprising the index. Hence, the movement in price of a single company share can heavily affect the value of the index. One of the very important index valued by using this method is Dow Jones Industrial Average.
Another form of share market valuation method is Fundamentally Weighted Index where the weights are attached to the shares according to the fundamental factors like sales.
Thus we can see that share market value is an average where weights are attached to the outstanding shares according to different methods used. Share market value works as a good signal to the investors for gauging the health of the share market in particular and of the domestic economy in general.
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Nouriel Roubini, a.k.a. “Doctor Doom”, is chairman of Roubini Global Economics and professor of economics at New York University’s Stern School of Business. Roubini has been consistently cited as one of the world’s top global thinkers. This year, he was voted as the most influential economist in the world by Forbes magazine.
Non-Executive Chairman of Morgan Stanley Asia. Lecturer at Yale University's School of Management and Jackson Institute for Global Affairs. Author of "The Next Asia".
Chancellor of the Exchequer of the United Kingdom from 1992 to 2007. Prime Minister of the UK between 2007 and 2010. Inaugural 'Distinguished Leader in Residence' at New York University. Advisor at World Economic Forum
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