Difference Between Sensex and Nifty

Sensex (Sensitive Index) tracks the performance of 30 large-cap stocks on the Bombay Stock Exchange. Nifty (National Stock Exchange Fifty) represents 50 major stocks listed on the National Stock Exchange.
Difference Between Sensex and Nifty
3 mins
19-March-2026

Key takeaways

  • The Sensex is the benchmark index of the Bombay Stock Exchange.
  • It was introduced in 1986, making it the oldest stock index in India.
  • The Nifty is the benchmark index of the National Stock Exchange.
  • It was introduced in 1996, so it's relatively newer than the Sensex.


The Sensex and Nifty are India’s leading benchmark indices, widely used to evaluate the performance of the stock market and individual stocks. Both indices serve as essential tools for identifying market trends, assessing sentiment, and comparing market movements. While they share certain similarities, understanding their differences is key to gaining a better insight into the dynamics of the stock market. Before exploring their distinct features and contrasts, it’s important to understand what a stock market index represents.


What is Sensex?

The Sensex, short for the Sensitive Index, is a stock market index that represents the performance of the Bombay Stock Exchange (BSE). It is composed of 30 well-established and financially sound companies from diverse sectors. These 30 companies are carefully selected to provide an overview of the Indian stock market's performance. Launched on January 2, 1986, the Sensex has become a prominent benchmark for measuring the overall movement of the market.

How to Calculate Sensex?

The Sensex is determined by adding up the closing prices of the top 30 stocks included in the index, each multiplied by its relevant weight. These weights are determined by dividing the free-float market capitalisation of each stock by the base market capitalisation and then multiplying it by the index's base value.

The formula for Sensex:

Sensex = Free float market capitalisation of 30 companies / Base market capitalisation * Base value of the index.


For Sensex calculation, the base year to calculate Sensex is 1978-79 and the base value is static, Rs. 2501.24 crore is to be used as the base market capitalisation and a value is 100 is taken as base value

So, the final formula for calculation Sensex is:

Sensex = Free float Market Capitalisation of 30 firms / 25041.24 crores * 100


What is Nifty?

The Nifty, officially known as the Nifty 50, is another major stock market index in India. As the name suggests, it comprises 50 well-established and liquid stocks from different sectors. The Nifty was introduced by the National Stock Exchange (NSE) on April 22, 1996, to provide a broader representation of the equity market's performance.

How to Calculate Nifty?

The NIFTY index utilizes a methodology that is weighted according to the free-float market capitalisation. This implies that each stock's weight in the index is determined by its market capitalisation, but only the shares that are publicly available for trade are considered. These publicly available shares are known as free-float shares.

Formula for calculation NIFTY is:

NIFTY = Current Market Value / Base Market Capital * 1000


For NIFTY calculation, the base period is 3rd November 1995, the base value is considered as 1000 and the base capital stands at Rs. 2.06 trillion.

The Free Float Market Capitalisation is calculated as follows:

Free float market capitalisation = Share Price * Equity Capital * Investable Weight Factor (IWF)


Difference between Sensex and Nifty

The table below will give you a clear comparison of nifty vs sensex, helping you understand the key differences between these two major stock market indices

AspectNIFTYSensex
CompositionComprises top 50 companiesComprises top 30 companies
ExchangeNational Stock Exchange (NSE)Bombay Stock Exchange (BSE)
Base Year19951978-79
Base Value1000100
Sector RepresentationRepresents a broader range of sectors.Represents a narrower range of sectors.
Market InfluenceReflects the overall sentiment and trends of the broader market.Reflects the overall sentiment and trends of the market, but with a smaller sample size.
Impact of Large CompaniesThe performance of large companies has a relatively higher impact due to the number of constituents.The performance of large companies carries more weight due to the limited number of constituents.
Overall SignificanceWidely recognised and often referred to as a benchmark for Indian equity markets.One of the oldest and most prominent stock market indices in India.
Example ETF/ Index FundNIFTY ETFs or index funds aim to replicate NIFTY's performance.Sensex ETFs or index funds aim to replicate Sensex's performance.


Factors that affect the performance of an index

Let us take a look at the various factors that can influence the performance of an index:

1. Economic conditions

Economic indicators, such as the country’s GDP, rate of inflation, and unemployment, mirror the country's overall economic growth and stability. When it comes to the performance of an index, these economic conditions have a significant effect. A high GDP equals high consumer spending and better business activities. This, in turn, results in improved company profits and share prices.

2. Company performance

Another factor that can affect index performance is the individual companies' financial health and performance. Elements such as management changes, earnings reports, and new launches also affect the index's performance. Positive results can result in increased stock prices and vice versa.

3. Global market trends

The past few years have shown how international trends can affect the domestic stock market. Pandemics, political instability, conflicts, and natural disasters can cause the market to perform badly, subsequently impacting indices.

4. Interest rates and inflation

Rising inflation reduces everyday expenses, leading to reduced company profits. Banks respond to growing inflation by increasing interest rates, which further increases a company’s debt burden. The cycle continues with a direct effect on corporate profits and stock performance. Conversely, lower interest rates encourage borrowing and spending, which results in increased company earnings and potentially higher stock prices.

5. Government policies

When the government advocates positive policies on taxation, regulations, and economic reforms, it can impact the profitability of companies. In the past, it was seen that when RBI brings modifications to the changes in cash reserve ratios and open market operations, it affects the liquidity and performance of the share market.

List of NSE NIFTY 50 Companies

Listed below are the Nifty 50 companies.

Serial NumberStock NameSub-Sector
1Reliance Industries LtdOil & Gas - Refining & Marketing
2HDFC Bank LtdPrivate Banks
3Bharti Airtel LtdTelecom Services
4Tata Consultancy Services LtdIT Services & Consulting
5ICICI Bank LtdPrivate Banks
6State Bank of IndiaPublic Banks
7Bajaj Finance LtdConsumer Finance
8Infosys LtdIT Services & Consulting
9Hindustan Unilever LtdFMCG - Household Products
10Larsen and Toubro LtdConstruction & Engineering
11ITC LtdFMCG - Tobacco
12Maruti Suzuki India LtdFour Wheelers
13Mahindra and Mahindra LtdFour Wheelers
14HCL Technologies LtdIT Services & Consulting
15Sun Pharmaceutical Industries LtdPharmaceuticals
16Kotak Mahindra Bank LtdPrivate Banks
17Axis Bank LtdPrivate Banks
18UltraTech Cement LtdCement
19Titan Company LtdPrecious Metals, Jewellery & Watches
20Bajaj Finserv LtdInsurance
21Adani Ports and Special Economic Zone LtdPorts
22NTPC LtdPower Generation
23Bharat Electronics LtdElectronic Equipments
24Oil and Natural Gas Corporation LtdOil & Gas - Exploration & Production
25Adani Enterprises LtdCommodities Trading
26JSW Steel LtdIron & Steel
27Asian Paints LtdPaints
28Eternal LtdOnline Services
29Wipro LtdIT Services & Consulting
30Power Grid Corporation of India LtdPower Transmission & Distribution
31Bajaj Auto LtdTwo Wheelers
32Nestle India LtdFMCG - Foods
33Coal India LtdMining - Coal
34Interglobe Aviation LtdAirlines
35Tata Steel LtdIron & Steel
36SBI Life Insurance Company LtdInsurance
37Jio Financial Services LtdConsumer Finance
38Eicher Motors LtdTrucks & Buses
39Hindalco Industries LtdMetals - Aluminium
40Grasim Industries LtdCement
41HDFC Life Insurance Company LtdInsurance
42Trent LtdRetail - Apparel
43Shriram Finance LtdConsumer Finance
44Tata Motors Passenger Vehicles LtdFour Wheelers
45Tech Mahindra LtdIT Services & Consulting
46Cipla LtdPharmaceuticals
47Tata Motors LtdTrucks & Buses
48Tata Consumer Products LtdTea & Coffee
49Max Healthcare Institute LtdHospitals & Diagnostic Centres
50Apollo Hospitals Enterprise LtdHospitals & Diagnostic Centres


Listed below are the Sensex 30 companies.

Serial NumberCOMPANYINDUSTRY
1ADANI PORTS & SEZMISCELLANEOUS
2ASIAN PAINTSPAINTS
3AXIS BANKBANKING
4BAJAJ FINANCEFINANCE
5BAJAJ FINSERVFINANCE
6BHARTI AIRTELTELECOM
7ETERNAL LTDE-COMMERCE
8HCL TECHNOLOGIESSOFTWARE
9HDFC BANKBANKING
10HINDUSTAN UNILEVERFMCG
11ICICI BANKBANKING
12TrentRETAIL
13INFOSYSSOFTWARE
14ITCFOOD
15KOTAK MAHINDRA BANKBANKING
16L&TENGINEERING
17M&MAUTOMOBILES
18MARUTI SUZUKIAUTOMOBILES
19Bharat ElectronicsAEROSPACE and DEFENCE
20NTPCPOWER
21POWER GRIDPOWER
22RELIANCE IND.ENERGY
23SBIBANKING
24SUN PHARMAPHARMACEUTICALS
25TATA MOTORS PASSENGER VEHICLES LIMITEDAUTOMOBILES
26TATA STEELSTEEL
27TCSSOFTWARE
28TECH MAHINDRASOFTWARE
29TITANRETAILING
30ULTRATECH CEMENTCEMENT


Which is better? Nifty or Sensex?

Nifty and Sensex are the two prominent market indices in the country. Nifty vs. Sensex has been an ongoing debate for many years. Sensex, better known as the Bombay Stock Exchange (BSE), is among the oldest stock exchanges in the world. A large pool of stocks is listed and traded here.

NSE, on the other hand, is a much bigger player. A leader in the derivatives segment, there are not only more companies in the NSE, but it also enjoys far more trading volumes while offering higher liquidity than the Sensex.

Beginner investors are often suggested to start their investment journey from the Sensex. NSE Nifty is the way forward for those who wish to trade in derivatives F&O.

The NSE is a much broader market index with over 24 sectors. The Sensex, on th other hand, covers 13 sectors. NSE is more prominent with its numbers; the credit goes to the much bigger number of active stock traders, which brings in aggressive buying and selling and strong liquidity. Though both indices have shown similar returns historically, Sensex has traditionally performed better.

Conclusion
 

In conclusion, the Sensex and Nifty are essential tools for investors, providing insights into the Indian stock market's performance. While they share the common goal of tracking market trends, their differences in composition, calculation, and impact make them unique indicators of economic health and market behaviour.

Want to explore more interesting topics? Read now.

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Frequently asked questions

What is the basic difference between Sensex and Nifty?

The main differences lie in the number of companies, calculation methods, base years, and stock exchange associations.

How do Nifty and Sensex work?

The Nifty and Sensex are critical indicators of the Indian stock market's health, tracking the performance of specific sets of stocks. Nifty is associated with the National Stock Exchange (NSE), while Sensex represents the Bombay Stock Exchange (BSE). Both indices employ a market capitalisation-weighted methodology to aggregate the prices of their constituent stocks, reflecting market trends and investor sentiment. Fluctuations in individual stock prices directly influence these indices, offering insights into the broader market conditions. Consequently, these indices are invaluable tools for investors to evaluate portfolio performance and shape strategic investment decisions.

Is Sensex better than Nifty?

Nifty, which includes 50 companies, is considered a broader market index compared to Sensex, which tracks the top 30 performing stocks. As a result, Sensex offers a more focused view of market performance. During bullish phases, leading companies tend to outperform, often driving Sensex higher. Historically, when analysing data alone, Sensex has shown stronger returns compared to Nifty, despite Nifty's wider representation of the market.

Which is older, the Sensex or the Nifty?

The Sensex is older, having been launched in 1986, while the Nifty was introduced in 1996.

What exactly is the Sensex Nifty BSE NSE?

Sensex and Nifty are indices representing the BSE and NSE respectively, which are major stock exchanges in India.

How is Sensex different from Nifty?

The primary difference between the Sensex and Nifty is the number of companies they represent. The Sensex consists of 30 companies, while Nifty comprises 50 companies.

Another difference between the two indices is their calculation method. While both indices use the free-float market capitalisation weighted methodology, the formula for calculating their respective indices differs.

Who controls Sensex and Nifty?

The Sensex is owned by the Bombay Stock Exchange (BSE). Nifty is owned and managed by NSE Indices Limited, a wholly-owned subsidiary of the NSE Strategic Investment Corporation Limited.

What are Sensex and Nifty in simple words?

BSE and NSE are stock exchanges. Sensex and Nifty are stock market indices. Sensex, short for 'Stock Exchange Sensitive Index,' is the stock market index for the Bombay Stock Exchange (BSE). On the other hand, Nifty, which stands for 'National Stock Exchange Fifty,' is the index for the National Stock Exchange (NSE).

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