The Hindu Business Line  2 hrs ago  Comment 
Circumspect market behaviour on account of worse-than-expected consumer confidence data from US saw the Nifty and the Sensex trading down by nearly one per cent. At 9.53 a.m., the 30-share BSE inde...
The Economic Times  4 hrs ago  Comment 
Tata Metaliks fell 5%, Indian Hotels declined 3.2% to Rs 125.65 and Tata Steel dropped 2.5% to Rs 415.50. The Sensex and the midcap index fell 0.3% each.
Equitymaster  Oct 25  Comment 
Posted by Equitymaster        After opening the day flat, the Indian share markets registered some further losses and went on to trade in the red. Sectoral indices are trading on a mixed note with stocks from the metal sector and...
The Economic Times  Oct 25  Comment 
Domestic equity indices are likely to trade on a flat note on Tuesday, tracking marginal gains in US stocks in overnight trade, ahead of results of many blue chip companies.
The Times of India  Oct 24  Comment 
Domestic stocks took on more strength on positive cues from Europe as the benchmark Sensex rallied nearly 102 points to hit a three-week high of 28,179 ahead of a crucial meeting between the government and top management of banks on NPAs.
Equitymaster  Oct 24  Comment 
Posted by Equitymaster        The Indian share market rose marginally during the noon trading session amid mixed Asian cues. Sectoral Indices are trading on a mixed note with stocks from PSU & banking sector leading the gains. While...
Reuters  Oct 24  Comment 
REUTERS - Indian shares ended higher on Monday, driven by strong performances by ICICI Bank and Tata Motors, as investors gear up for a crucial week of quarterly results.
The Economic Times  Oct 24  Comment 
Dalal Street mavens believe a win for Hillary Clinton could prove to be a big positive for markets across the globe, including India, the survey showed.
The Hindu Business Line  Oct 24  Comment 
The Sensex and Nifty ended higher, driven by strong performances by ICICI Bank and Tata Motors, as investors gear up for a crucial week of quarterly results. The broader NSE index closed up 15.9 p...
The Economic Times  Oct 24  Comment 
The Nifty50 reclaimed its crucial resistance level of 8,700 supported by gains in power, consumer durables, capital goods, banks, auto, and oil & gas stocks.


The BSE Sensex is a market capitalized index that tracks 30 stocks from the Bombay Stock Exchange, which are representative of the stocks from various sectors of the Bombay Stock Exchange. They account for approximately one fifth of the capitalization of the exchange. It is the second largest exchange of India in terms of volume and first in terms of shares listed. The BSE Sensex has more than ten thousand shares listed.[1]


The index is calculated based on a free-float capitalization method; a variation of the market cap method. Instead of using a company's outstanding shares it uses its float, or shares that are readily available for trading. The free-float method, therefore, does not include restricted stocks, such as those held by company insiders.

The Free float Adjustment factor, or FAF for short, represents the proportion of shares that is freefloated as a percentage of issued shares and then its rounded up to the nearest mulitple of 5% for calculation purposes. To find the free-float capitalization of a company, first find its market cap (number of outstanding shares x share price) then multiply its free-float factor.

The free-float factor is determined by the percentage of floated shares to outstanding. For example, if a company has a float of 4 million shares and outstanding shares of 5 million, the percent of float to outstanding is 80%. A company with an 80% free float falls in the 75-80% free-float factor, or 0.80, which is then multiplied by its market cap. For example: $120 million (12 million shares at $10/share) x 0.80 = $96 million.[2]


The composition of the BSE Sensex, as of August 27, 2008:[3]

COMPANY NAME TICKER on the BSE Industry Free float Factor
ACC LimitedBY:500410Housing Related0.60
Bharat Heavy Electricals LimitedBY:500103Capital goods0.35
Bharti Airtel LtdBY:532454Telecom0.35
DLF Ltd.BY:532868Housing Related0.15
Grasim Industries Ltd.BY:500300Diversified0.75
HDFC Bank (HDB)BY:500180Finance0.85
Hindalco Industries LtdBY:500440Metals, Metal Products and Mining0.70
Hindustan Unilever LtdBY:500696Fast Moving Consumer Goods0.50
ICICI Bank (IBN)BY:532174Finance1.00
Infosys Technologies (INFY)BY:500209Information Technology0.85
ITC LtdBY:500875Fast Moving Consumer Goods0.70
Jaiprakash Associates Ltd.BY:532532Housing Related0.60
Larsen & Toubro LimitedBY:500510Capital Goods0.90
Mahindra & Mahindra LtdBY:500520Transport Equipments0.80
Maruti Suzuki India LtdBY:532500Transport Equipments0.50
National Thermal Power Corporation LtdBY:532555Power0.15
Oil and Natural Gas Corporation BY:500312OIl & Gas0.20
Ranbaxy Laboratories Ltd.BY:500359Healthcare0.70
Reliance Communications (532712-BY)BY:532712Telecom0.35
Reliance Industries Limited (RELIANCE-IN)BY:500325Oil & Gas0.50
Reliance Infrastructure Ltd.BY:500390Power0.65
Satyam Computer Services (SAY)BY:500376Information Technology0.95
Sterlite Industries (India) Ltd.BY:500900Metals, Metal Products and Mining 0.40
Tata Consultancy Services LimitedBY:532540Information Technology0.25
Tata Motors (TTM)BY:500570Transport Equipments0.60
Tata Power Company Ltd.BY:500400Power0.70
Tata Steel Limited (500470-BY)BY:500470Metals, Metal Products and Mining0.70
Wipro (WIT)BY:507685Information Technology0.20



  1. You must specify title = and url = when using {{cite web}}..
  2. Investopedia.com
  3. List of Sensex stocks
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