ad
  1. Home
  2. Indices
  3. Sensex (SENSEX)
stock logo
SENSEX
₹undefined
0.00 (0.00%)

Sensex (SENSEX) live share price today at BSE

08 October, 2025 12:46 | BSE : -51

Overview
F&O
Charts
Stocks
Today`s low
0.00
Today`s high
0.00
Today`s return
View all
ad

BSE Sensex: Brief Overview of the Index

The BSE Sensex is an Index which is used as an analytical tool to measure the performance of the top 30 largest and liquid stocks in the BSE LargeMidCap. The method used in valuing the BSE Sensex Index is based on float-adjusted market capitalisation. The BSE Sensex is used as a phrase similar to 'Sensitive' and 'Index'. The movement in the market is measured in this Index, which is listed on the Indian Stock Exchange. 

The BSE Sensex index comprises the top 30 constituent stocks, representing liquid, sizable, and competitive companies. The BSE Sensex Index widely covers the electronic media in the markets of both domestic and foreign representatives. The method is primarily used for full market capitalisation, but later it changed and was used as a free-float capitalisation. The free-float market capitalisation method is considered the best method in the Sensex sector.    

The BSE Sensex was launched on 3rd April,1979, with a base year of 1978 and a base value of 100. The BSE Sensex Index comprises the top-liquid stocks in the BSE Sensex and is considered the most traditional index in India, having been launched in 1979. The world was not as developed at that time, but the revolution of the BSE Sensex Index gained popularity due to its reliable data and trust among investors. 

Key Aspects of the BSE Sensex 50

  • The market capitalisation of the Index as a percentage of total market capitalisation is 43.51%
  • The volume of the index as a percentage of the total market volume is 1.36%.
  • The calculation of the frequency of the BSE Sensex Index is 1.36%.
  • The PE Ratio of the BSE Sensex is 22.64, the P/B Ratio of the Index is 4.05, and the dividend yield is 1.26.
  • The BSE Sensex has diversified into various sectors; meanwhile, the top three sectors of the index are Finance, Information Technology, and Oil & Gas.
  • The percentage of the top three sectors is 36.05%, 10.27%, 9.01%
  • The calculation of the BSE Sensex is based on full-adjusted market capitalisation.
  • The full market capitalisation of the index is ₹ 19,482,850.46 crore, and the free-float market capitalisation is ₹ 11,231,673.26 crore.

Eligibility criteria of the BSE Sensex Index

  • The company must be listed on the BSE and shall fulfil the criteria of active trading. 
  • The company shall not be suspended from the BSE Index.
  • The trading frequency shall be at least 98% of the total trading days in the past 12 months.
  • The condition of high liquidity and regular participation shall be fulfilled for the last 12 months.
  • The representation of any single sector shall not be so high as to affect the other sectors negatively. 
  • Companies must follow the BSE listing Regulations and should have a track record of financial wealth and governance.
  • The BSE Sensex Index should follow the rebalancing criteria on a semi-annual basis.
  • If the companies do not fulfil the eligibility criteria, then they will be excluded from the Index and replaced with the company that fulfils it. 

Calculation and formulation of the BSE Sensex

By using the method of free-float market capitalisation, the BSE Sensex value shall be determined. The free-float market value of the 30 companies is reflected by the level of the index at any one time and then compared to the base period. The steps in calculating the market capitalisation are as follows: firstly, dividing the share price by the total number of shares of the company, and then multiplying it by the free-float market capitalisation and the free-float factor.    

The review criteria for the BSE Sensex Index are conducted between June and December. The Index evaluates the economic conditions of the country among various sectors, and also contributes to the development of the country and provides support to the developing sectors.

The market capitalisation shall be determined by multiplying the number of outstanding shares by the share price and then multiplying the market capitalisation by the proportion of available free float to the number of outstanding shares.

The formula for the BSE Sensex Index = Total Free-Float Market Capitalisation* Base Index Value/ Base Market Capitalisation.

Advantages of the BSE Sensex Index

  • It covers the large-cap top 30 companies and provides diversification to the investors, which helps them ensure that the index is highly growing and developing.
  • The BSE Sensex Index provides high liquidity, which provides investors with the ability to enter and exit the market freely.
  • It acted as a benchmark for large-cap ETFs, mutual funds, and index funds, which help investors track the stock market performance.

Disadvantages of the BSE Sensex Index

  • The BSE Sensex Index is most similar to the Nifty Index, which limits the ability of uniqueness for the investors.
  • The index is biased towards the small-cap sector, encompassing industries such as media, tourism, chemicals, and many others. It focuses mainly on the large-cap sector, such as Banking, IT, and energy sectors. 
  • Investors have a high chance of missing out on high growth and returns after investing in the BSE Sensex Index.

How can I invest in the BSE Sensex Index?

The investors should research the high-value stocks in the diversified sector of the BSE Sensex Index; the companies with strong financials and high profitability in the future can provide long-term growth and stability. Investors should open a demat account for trading and also select a broker to choose the best BSE Sensex top 30 stocks, which offer high potential for future growth. Or, when investing in the BSE Sensex, the completion of KYC is necessary, which enables investors to choose the best stocks in the BSE Sensex. On the platform of the brokerage, Investors can assess the Mutual Funds or ETFs. The investors can track the performance of the BSE Sensex Index Stocks through their demat account. 

Conclusion

The BSE Sensex is an Index which is used as an analytical tool to measure the performance of the top 30 largest and liquid stocks in the BSE LargeMidCap. The method used in valuing the BSE Sensex Index is based on float-adjusted market capitalisation. The BSE Sensex index comprises the top 30 constituent stocks, representing liquid, sizable, and competitive companies. The BSE Sensex Index widely covers the electronic media in the markets of both domestic and foreign representatives. The world was not as developed at that time, but the revolution of the BSE Sensex Index gained popularity due to its reliable data and trust among investors. 

The company must be listed on the BSE and shall fulfil the criteria of active trading. The trading frequency shall be at least 98% of the total trading days in the past 12 months. If the companies do not fulfil the eligibility criteria, then they will be excluded from the Index and replaced with the company that fulfils it. It covers large-cap companies and provides diversification to the investors, which helps them ensure that the index is highly growing and developing.

FAQs

What is the BSE Sensex?

arrow

The BSE Sensex is an Index which is used as an analytical tool to measure the performance of the top 30 largest and liquid stocks in the BSE LargeMidCap. The method used in valuing the BSE Sensex Index is based on float-adjusted market capitalisation. 

What are the eligibility criteria for the BSE Sensex?

arrow

The company must be listed on the BSE and shall fulfil the criteria of active trading. If the companies do not satisfy the eligibility criteria, then they will be excluded from the Index and replaced with the company that fulfils it. 

How can I invest in the BSE Sensex?

arrow

The investors should research the high-value stocks in the diversified sector of the BSE Sensex Index; the companies with strong financials and high profitability in the future can provide long-term growth and stability. On the platform of the brokerage, Investors can assess the Mutual Funds or ETFs. The investors can track the performance of the BSE Sensex  Index Stocks through their demat account.

What are the benefits of the BSE Sensex Index?

arrow

It covers large-cap companies and provides diversification to the investors, which helps them ensure that the index is highly growing and developing. The BSE Sensex Index offers high liquidity, which provides investors with the ability to enter and exit the market freely.

ad
icon

100% Safe & Secure Platform.

Univest encrypts all data and transactions to ensure a completely secure experience for our members.

Copyright

2025 Univest. All rights reserved. | Designed with ❤️ in India
About Univest
About: Univest is a cutting-edge stock market platform designed to help traders and investors maximize their returns with expert-driven advisory services and seamless trading execution. Whether you're a seasoned trader or just starting, Univest simplifies your investment journey with actionable trade recommendations, AI-powered portfolio insights, and a fully integrated brokerage experience. With Univest, you gain access to proven stock market advisory, offering expert trade ideas for stocks, futures, options, and commodities. Our one-click trade execution feature eliminates slippage, ensuring instant execution through our advisory-first brokerage. Smart portfolio management allows you to identify underperforming stocks, optimize your investments, and receive real-time alerts. Additionally, Univest provides seamless investment opportunities beyond stocks, including mutual funds, bonds, fixed deposits, and insurance (coming soon). Join over 40 lakh active investors who trust Univest to make informed and profitable trading decisions. Start investing smarter today! 🚀  
Attention Investors : To ensure a smooth trading experience and prevent unauthorized transactions, investors must update their mobile number and email ID with their stockbroker or depository participant. As per regulatory requirements, investors are required to pay a stipulated amount as an upfront margin for trading in the Cash/FO segment. We encourage all investors to regularly check their securities in the Consolidated Account Statement (CAS) issued by depository to verify their holdings.Always verify alerts and transaction details received directly from the exchange or NSDL before proceeding with any trades. Please do not make payments through unverified email links, WhatsApp, or SMS. Always trade through a registered stockbroker and verify all details before making financial decisions.
 
Disclaimer: Investments in the securities market are subject to market risks. Please read all related documents carefully before investing. Brokerage will not exceed the SEBI prescribed limit. For more disclaimer /disclosure, visit https://univest.in/stock-broker or Univest App.We collect and use your contact information for legitimate business purposes, including providing updates on our products and services. We do not sell or rent your contact information to third parties. By submitting your details, you authorize us to contact you via Call/SMS, even if you are registered under DND. This authorization remains valid for 12 months.For grievances, please contact us at hello@unibrokers.in .
 
Univest Stock Broking Disclosures
Univest Stock Broking Private Limited - SEBI Reg. No. INZ000317437 (Stock Broker), NSE TM Code: 90392, BSE TM Code: 6866, MCX TM Code: 57290 and ICCL- Self Clearing Member Code: 6866, SEBI Reg. No. IN-DP-779-2024 (Participant), NSDL DP ID: IN304748.
 Risk Disclosures on Derivatives
1. 9 out of 10 individual traders in equity Futures and Options Segment, incurred net losses.
2. On an average, loss makers registered net trading loss close to ₹ 50,000
3. Over and above the net trading losses incurred, loss makers expended an additional 28% of net trading losses as transaction costs.
4. Those making net trading profits, incurred between 15% to 50% of such profits as transaction cost.
Attention Investors: As per NSE circular dated July 6, 2022: https://nsearchives.nseindia.com/content/circulars/INSP52900.pdf, BSE circular dated July 6, 2022: https://www.bseindia.com/markets/MarketInfo/DispNewNoticesCirculars.aspx?page=20220706-55, MCX circular dated July 11, 2022: https://www.mcxindia.com/docs/default-source/circulars/english/2022/july/circular-418-2022.pdf?sfvrsn=9401991_0, investors are cautioned to abstain them from dealing in any schemes of unauthorised collective investments/portfolio management, indicative/ guaranteed/fixed returns / payments etc. 
Investors are further cautioned to avoid practices like:
a. Sharing 
i) trading credentials – login id and passwords including OTPs.
ii) trading strategies,
iii) position details.
b. Trading in leveraged products /derivatives like Options without proper understanding, which could lead to losses.
c. Writing/ selling options or trading in option strategies based on tips, without basic knowledge and understanding of the product and its risks.
d. Dealing in unsolicited tips through platforms like Whatsapp, Telegram, Instagram, YouTube, Facebook, SMS, calls, etc.
e. Trading / Trading in “Options” based on recommendations from unauthorised / unregistered investment advisors and influencers.
 Kindly read the Advisory Guidelines For Investors as prescribed by the Exchange with reference to their circular dated 27th August, 2021 regarding investor awareness and safeguarding client’s assets: https://nsearchives.nseindia.com/content/circulars/INSP49434.pdf
Kindly, read the advisory as prescribed by the Exchange with reference to their circular: NSE/ISC/51035 dated January 14, 2022 regarding Updation of mandatory KYC fields by March 31, 2022: https://www.nseindia.com/resources/exchange-communication-circulars# 
Attention Investors: Prevent unauthorised transactions in your Demat account by updating your mobile number with your depository participant. Receive alerts on your registered mobile number for debit and other important transactions in your Demat account directly from NSDL on the same day. Prevent unauthorised transactions in your Trading account by updating your mobile numbers/email addresses with your stock brokers. Receive information on your transactions directly from the Exchange on your mobile/email at the end of the day. Issued in the interest of investors. KYC is a one-time exercise while dealing in securities markets - once KYC is done through a SEBI-registered intermediary (Broker, DP), you need not undergo the same process again when you approach another intermediary. As a business, we don’t give stock tips and have not authorised anyone to trade on behalf of others. If you find anyone claiming to be part of Univest Stock Broking Private Limited and offering such services, please send us an email at hello@unibrokers.in
No need to issue cheques by investors while subscribing to IPO. Just write the bank account number and sign in the application form to authorise your bank to make payment in case of allotment. No worries for refund as the money remains in investor’s account.
Update your email ID and mobile number with your stockbroker/depository participant and receive an OTP directly from the depository on your registered email ID and/or mobile number. Check your securities/mutual funds/bonds in the Consolidated Account Statement (CAS) issued by NSDL every month.
Attention Investors: SEBI has established an Online Dispute Resolution Portal (ODR Portal) for resolving disputes in the Indian Securities Market. This circular streamlines the existing dispute resolution mechanism, offering online conciliation and arbitration, benefiting investors and listed companies https://www.sebi.gov.in/legal/circulars/jul-2023/online-resolution-of-disputes-in-the- indian-securities-market_74794.html. ODR portal for Investors - https://smartodr.in/login.
Procedure to file a complaint on SEBI SCORES: Register on SCORES portal. Mandatory details for filing complaints on SCORES: Name, PAN, Address, Mobile Number, E-mail ID. Benefits: Effective Communication, Speedy redressal of the grievances.
General
arrow down