Introduction
Nifty and Sensex are two of the most important stock market indices in India. They are used as benchmark indicators for the performance of the Indian stock market. They represent the weighted average of the performance of the top 50 and 30 stocks, respectively, listed on the National Stock Exchange (NSE) of India. In this article, we will discuss Nifty and Sensex in detail, including their origin, calculation, importance, and how they are used by investors and traders.
Nifty
The Nifty 50, also known as the Nifty, is a stock market index of the National Stock Exchange (NSE) of India. It was launched on April 1, 1996, and represents the weighted average of the performance of 50 of the largest and most liquid stocks listed on the NSE. The Nifty is considered one of the most important stock market indices in India and is widely followed by investors and traders.
Calculation
The Nifty is calculated using the free float market capitalization weighted method. This means that the weight of a stock in the index is proportional to its market capitalization, adjusted for the number of shares that are readily available for trading. The market capitalization of a stock is determined by multiplying its current market price by the number of outstanding shares.

The Nifty 50 is reviewed and rebalanced quarterly to ensure that it remains representative of the Indian stock market. Stocks are added or removed based on their market capitalization, liquidity, and other criteria. The Nifty is a market-capitalization weighted index, meaning that stocks with a higher market capitalization will have a higher weight in the index.
Importance
The Nifty is considered a benchmark index for the Indian stock market and is widely used as an indicator of the performance of the Indian economy. It is used by investors and traders to assess the overall performance of the Indian stock market and to make investment decisions. The Nifty is also used as a benchmark for various mutual funds and exchange-traded funds (ETFs) in India.
The Nifty provides a broad perspective on the Indian stock market as it includes stocks from a range of sectors, including finance, healthcare, technology, and consumer goods. This means that it is a good indicator of the performance of the Indian economy as a whole.
Investors and traders can also use the Nifty to compare the performance of different stocks and sectors. For example, they can compare the performance of the Nifty with the performance of individual stocks or sectors to determine which stocks or sectors are outperforming the market.
Sensex
The BSE SENSEX, also known as the Sensex, is a stock market index of the Bombay Stock Exchange (BSE) of India. It was launched on January 1, 1986, and represents the weighted average of the performance of 30 of the largest and most liquid stocks listed on the BSE. The Sensex is considered one of the most important stock market indices in India and is widely followed by investors and traders.
Calculation
The Sensex is calculated using the free float market capitalization weighted method. This means that the weight of a stock in the index is proportional to its market capitalization, adjusted for the number of shares that are readily available for trading. The market capitalization of a stock is determined by multiplying its current market price by the number of outstanding shares.
The Sensex 30 is reviewed and rebalanced annually to ensure that it remains representative of the Indian stock market. Stocks are added or removed based on their market capitalization, liquidity, and other criteria. The Sensex is a market-capitalization weighted index, meaning that stocks with a higher market capitalization will have a higher