Sensitive Index
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1) Sensex is the common name for the Bombay Stock Exchange Sensitive Index. It consists of the 30 largest and most actively traded stocks, representative of various sectors, on the Bombay Stock Exchange. 2)What are the Sensex & the Nifty? Ans The Sensex is an "index". What is an index? An index is basically an indicator. It gives you a general idea about whether most of the stocks have gone up or most of the stocks have gone down. The Sensex is an indicator of all the major companies of the BSE. The Nifty is an indicator of all the major companies of the NSE. If the Sensex goes up, it means that the prices of the stocks of most of the major companies on the BSE have gone up. If the Sensex goes down, this tells you that the stock price of most of the major stocks on the BSE have gone down. Just like the Sensex represents the top stocks of the BSE, the Nifty represents the top stocks of the NSE. Just in case you are confused, the BSE, is the Bombay Stock Exchange and the NSE is the National Stock Exchange. The BSE is situated at Bombay and the NSE is situated at Delhi. These are the major stock exchanges in the country. There are other stock exchanges like the Calcutta Stock Exchange etc. but they are not as popular as the BSE and the NSE.Most of the stock trading in the country is done though the BSE & the NSE. Besides Sensex and the Nifty there are many other indexes. There is an index that gives you an idea about whether the mid-cap stocks go up and down. This is called the “BSE Mid-cap Index”. There are many other types of indexes. There is an index for the metal stocks. There is an index for the FMCG stocks. There is an index for the automobile stocks etc.
3)How to calculate BSE SENSEX?
Ans This article explains how the value of the “BSE Sensex” or “sensitive index” is calculated. If you are not sure what we mean by
the Sensex or what the Sensex is all about, you can find this out by reading our “How to make money in the stock market?” article.
The Sensex has a very important function. The Sensex is supposed to be an indicator of the stocks in the BSE. It is supposed to show whether the stocks are generally going up, or generally going down.
To show this accurately, the Sensex is calculated taking into consideration stock prices of 30 different BSE listed companies. It is calculated using the “free-float market capitalization” method. This is a world wide accepted method as one of the best methods for calculating a stock market index.
Please note: The method used for calculating the Sensex and the 30 companies that are taken into consideration are changed from time to time. This is done to make the Sensex an accurate index and so that it represents the BSE stocks properly.
To really understand how the Sensex is calculated, you simply need to understand what the term “free-float market capitalization” means. (As we said earlier, the Sensex is calculated on basis of the “free-float market capitalization” method) But, before we understand what “freefloat market capitalization” means, you first need to understand what “market capitalization” means.
4) What is "market capitalization"?
Ans
You probably think that you have never heard of the term
“market capitalization” before. You have! When you are talking about “mid-cap”, “small-cap” and “large-cap” stocks, you are talking about market capitalization!
Market cap or market capitalization is simply the worth of a company in terms of it’s shares! To put it in a simple way, if you were to buy all the shares of a particular company, what is the amount you would have to pay? That amount is called the “market capitalization”!
To calculate the market cap of a particular company, simply multiply the “current share price” by the “number of shares issued by the company”! Just to give you an idea, ONGC, has a market cap of “Rs.170,705.21 Cr” (when this article was written)
Depending on the value of the market cap, the company will either be a “mid-cap” or “large-cap” or “small-cap” company! Now the question is, how do YOU calculate the market cap of a particular company? You don’t! Just go to a website like MoneyControl.com and look up the company whose market cap you are interested in finding out! The figure in front of “Mkt. Cap” will be the market cap value.
Having seen what market cap is and how to find out the market cap of a particular company, let us try to understand the concept of “free-float market
5) What is "free-float market capitalization"? Many different types of investors hold the shares of a company! The Govt. may hold some of the shares. Some of the shares may be held by the “founders” or “directors” of the company. Some of the shares may be held by the FDI’s etc. etc!
Now, only the “open market” shares that are free for trading by anyone, are called the “free-float” shares. When we are calculating the Sensex, we are interested in these “free-float” shares!
A particular company, may have certain shares in the open market and certain shares that are not available for trading in the open market.
According the BSE, any shares that DO NOT fall under the following criteria, can be considered to be open market shares: •
Holdings by founders/directors/ acquirers which has control element
•
Holdings by persons/ bodies with "controlling interest"
•
Government holding as promoter/acquirer
•
Holdings through the FDI Route
•
Strategic stakes by private corporate bodies/ individuals
•
Equity held by associate/group companies (cross-holdings)
•
Equity held by employee welfare trusts
•
Locked-in shares and shares which would not be sold in the open market in normal course.
A company has to submit a complete report about “who has how many of the company’s shares” to the BSE. On the basis of this, the BSE will decide the “free-float factor” of the company. The “free-float factor” is a very valuable number! If you multiply the "freefloat factor" with the “market cap” of that company, you will get the “free-float market cap” which is the value of the shares of the company in the open market! A simple way to understand the “free-float market cap” would be, the total cost of buying all the shares in the open market!
So, having understood what the “free float market cap” is, now what? How do you find out the value of the Sensex at a particular point? Well, it’s pretty simple….
First: Find out the “free-float market cap” of all the 30 companies that make up the Sensex!
Second: Add all the “free-float market cap’s” of all the 30 companies!
Third: Make all this relative to the Sensex base. The value you get is the Sensex value!
The “third” step probably confused you. To understand it, you will need to understand “ratios and proportions” from 5th standard mathematics. Think of it this way:
Suppose, for a “free-float market cap” of Rs.100,000 Cr... the Sensex value is 4000… Then, for a “free-float market cap” of Rs.150,000 Cr... the Sensex value will be.. 100,000/4000=150,000 ?150,000/100,000*4000 So, the Sensex value will be 6000 if the “free-float market cap” comes to Rs.150,000 Cr!
Please Note: Every time one of the 30 companies has a “stock split” or a "bonus" etc. appropriate changes are made in the “market cap” calculations.
Now, there is only one question left to be answered, which 30 companies, why those 30 companies, why no other companies?
The 30 companies that make up the Sensex are selected and reviewed from time to time by an “index committee”. This “index committee” is made up of academicians, mutual fund managers, finance journalists, independent governing board members and other participants in the financial markets.
The main criteria for selecting the 30 stocks is as follows: Market capitalization: The company should have a market capitalization in the Top 100 market capitalization’s of the BSE. Also the market capitalization of each company should be more than 0.5% of the total market capitalization of the Index.
Trading frequency: The company to be included should have been traded on each and every trading day for the last one year. Exceptions can be made for extreme reasons like share suspension etc.
Number of trades: The scrip should be among the top 150 companies listed by average number of trades per day for the last one year.
Industry representation: The companies should be leaders in their industry group.
Listed history: The companies should have a listing history of at least one year on BSE.
Track record: In the opinion of the index committee, the company should have an acceptable track record.
Having understood all this, you now know how the Sensex is calculated.
3)How to calculate BSE SENSEX?
Ans This article explains how the value of the “BSE Sensex” or “sensitive index” is calculated. If you are not sure what we mean by
the Sensex or what the Sensex is all about, you can find this out by reading our “How to make money in the stock market?” article.
The Sensex has a very important function. The Sensex is supposed to be an indicator of the stocks in the BSE. It is supposed to show whether the stocks are generally going up, or generally going down.
To show this accurately, the Sensex is calculated taking into consideration stock prices of 30 different BSE listed companies. It is calculated using the “free-float market capitalization” method. This is a world wide accepted method as one of the best methods for calculating a stock market index.
Please note: The method used for calculating the Sensex and the 30 companies that are taken into consideration are changed from time to time. This is done to make the Sensex an accurate index and so that it represents the BSE stocks properly.
To really understand how the Sensex is calculated, you simply need to understand what the term “free-float market capitalization” means. (As we said earlier, the Sensex is calculated on basis of the “free-float market capitalization” method) But, before we understand what “freefloat market capitalization” means, you first need to understand what “market capitalization” means.
4) What is "market capitalization"?
Ans
You probably think that you have never heard of the term
“market capitalization” before. You have! When you are talking about “mid-cap”, “small-cap” and “large-cap” stocks, you are talking about market capitalization!
Market cap or market capitalization is simply the worth of a company in terms of it’s shares! To put it in a simple way, if you were to buy all the shares of a particular company, what is the amount you would have to pay? That amount is called the “market capitalization”!
To calculate the market cap of a particular company, simply multiply the “current share price” by the “number of shares issued by the company”! Just to give you an idea, ONGC, has a market cap of “Rs.170,705.21 Cr” (when this article was written)
Depending on the value of the market cap, the company will either be a “mid-cap” or “large-cap” or “small-cap” company! Now the question is, how do YOU calculate the market cap of a particular company? You don’t! Just go to a website like MoneyControl.com and look up the company whose market cap you are interested in finding out! The figure in front of “Mkt. Cap” will be the market cap value.
Having seen what market cap is and how to find out the market cap of a particular company, let us try to understand the concept of “free-float market
5) What is "free-float market capitalization"? Many different types of investors hold the shares of a company! The Govt. may hold some of the shares. Some of the shares may be held by the “founders” or “directors” of the company. Some of the shares may be held by the FDI’s etc. etc!
Now, only the “open market” shares that are free for trading by anyone, are called the “free-float” shares. When we are calculating the Sensex, we are interested in these “free-float” shares!
A particular company, may have certain shares in the open market and certain shares that are not available for trading in the open market.
According the BSE, any shares that DO NOT fall under the following criteria, can be considered to be open market shares: •
Holdings by founders/directors/ acquirers which has control element
•
Holdings by persons/ bodies with "controlling interest"
•
Government holding as promoter/acquirer
•
Holdings through the FDI Route
•
Strategic stakes by private corporate bodies/ individuals
•
Equity held by associate/group companies (cross-holdings)
•
Equity held by employee welfare trusts
•
Locked-in shares and shares which would not be sold in the open market in normal course.
A company has to submit a complete report about “who has how many of the company’s shares” to the BSE. On the basis of this, the BSE will decide the “free-float factor” of the company. The “free-float factor” is a very valuable number! If you multiply the "freefloat factor" with the “market cap” of that company, you will get the “free-float market cap” which is the value of the shares of the company in the open market! A simple way to understand the “free-float market cap” would be, the total cost of buying all the shares in the open market!
So, having understood what the “free float market cap” is, now what? How do you find out the value of the Sensex at a particular point? Well, it’s pretty simple….
First: Find out the “free-float market cap” of all the 30 companies that make up the Sensex!
Second: Add all the “free-float market cap’s” of all the 30 companies!
Third: Make all this relative to the Sensex base. The value you get is the Sensex value!
The “third” step probably confused you. To understand it, you will need to understand “ratios and proportions” from 5th standard mathematics. Think of it this way:
Suppose, for a “free-float market cap” of Rs.100,000 Cr... the Sensex value is 4000… Then, for a “free-float market cap” of Rs.150,000 Cr... the Sensex value will be.. 100,000/4000=150,000 ?150,000/100,000*4000 So, the Sensex value will be 6000 if the “free-float market cap” comes to Rs.150,000 Cr!
Please Note: Every time one of the 30 companies has a “stock split” or a "bonus" etc. appropriate changes are made in the “market cap” calculations.
Now, there is only one question left to be answered, which 30 companies, why those 30 companies, why no other companies?
The 30 companies that make up the Sensex are selected and reviewed from time to time by an “index committee”. This “index committee” is made up of academicians, mutual fund managers, finance journalists, independent governing board members and other participants in the financial markets.
The main criteria for selecting the 30 stocks is as follows: Market capitalization: The company should have a market capitalization in the Top 100 market capitalization’s of the BSE. Also the market capitalization of each company should be more than 0.5% of the total market capitalization of the Index.
Trading frequency: The company to be included should have been traded on each and every trading day for the last one year. Exceptions can be made for extreme reasons like share suspension etc.
Number of trades: The scrip should be among the top 150 companies listed by average number of trades per day for the last one year.
Industry representation: The companies should be leaders in their industry group.
Listed history: The companies should have a listing history of at least one year on BSE.
Track record: In the opinion of the index committee, the company should have an acceptable track record.
Having understood all this, you now know how the Sensex is calculated.
