|Exchanges||London Stock Exchange|
|Market cap||£1.814 trillion|
(as of May 2020)
The Financial Times Stock Exchange 100 Index, also called the FTSE 100 Index, FTSE 100, FTSE, or, informally, the "Footsie" //, is a share index of the 100 companies listed on the London Stock Exchange with (in principle) the highest market capitalisation. The index is maintained by the FTSE Group, a subsidiary of the London Stock Exchange Group.
The index is maintained by the FTSE Group, now a wholly owned subsidiary of the London Stock Exchange, which originated as a joint venture between the Financial Times and the London Stock Exchange. It is calculated in real time and published every second when the market is open.
The FTSE 100 Index was launched on 3 January 1984. The market capitalisation weighted FTSE 100 index replaced the price-weighted FT30 Index as the performance benchmark for most investors.
The FTSE 100 broadly consists of the largest 100 qualifying UK companies by full market value. The total market value of a company is calculated by multiplying the share price of the company by the total number of shares they have issued. Many of these are internationally focused companies, however, so the index's movements are a fairly weak indicator of how the UK economy is faring and are significantly affected by the exchange rates of the pound sterling. A better indication of the UK economy is the FTSE 250 Index, as it contains a smaller proportion of international companies.
Even though the FTSE All-Share Index is more comprehensive, the FTSE 100 is by far the most widely used UK stock market indicator. Other related indices are the FTSE 250 Index (which includes the next largest 250 companies after the FTSE 100), the FTSE 350 Index (which is the aggregation of the FTSE 100 and 250), FTSE SmallCap Index and the FTSE Fledgling Index. The FTSE All-Share aggregates the FTSE 100, FTSE 250 and FTSE SmallCap.
To be included in the index, a company must meet a number of requirements set out by the FTSE Group, including having a full listing on the London Stock Exchange with a sterling or Euro denominated price on the Stock Exchange Electronic Trading Service, and meeting certain tests on nationality, free float, and liquidity.
Continuous trading on the London Stock Exchange starts at 08:00 and ends at 16:30 (when the closing auction starts), and closing values are taken at 16:35.
In the FTSE indices, share prices are weighted by free-float capitalisation, so that the larger companies, with more of their stock "floating", make more of a difference to the index than smaller companies. The basic formula for these indices is:
The free float adjustment factor represents the percentage of all issued shares that are readily available for trading, rounded up to the nearest multiple of 5%. The free-float capitalisation of a company is its market capitalisation multiplied by its free float adjustment factor. It therefore does not include restricted stocks, such as those held by company insiders.
The index reached the following record values:
|Closing||7,877.45||22 May 2018|
|Intraday||7,903.50||22 May 2018|
The index began on 3 January 1984 at the base level of 1000. The highest closing value of 7,877.45 was reached on 22 May 2018. The highest intra-day value of 7,903.50 was reached on 22 May 2018.
|Year||Closing level||Change in Index|
The following table lists the FTSE 100 companies after the changes on 17 December 2021.
|Company||EPIC||FTSE Industry Classification Benchmark sector|
|Admiral Group||ADM||Nonlife Insurance|
|Anglo American plc||AAL||Mining|
|Ashtead Group||AHT||Support Services|
|Associated British Foods||ABF||Food Producers|
|AstraZeneca||AZN||Pharmaceuticals & Biotechnology|
|Auto Trader Group||AUTO||Media|
|Avast||AVST||Software & Computer Services|
|Aveva||AVV||Software & Computer Services|
|BAE Systems||BA||Aerospace & Defence|
|Barratt Developments||BDEV||Household Goods & Home Construction|
|Berkeley Group Holdings||BKG||Household Goods & Home Construction|
|BP||BP||Oil & Gas Producers|
|British American Tobacco||BATS||Tobacco|
|British Land||BLND||Real Estate Investment Trusts|
|BT Group||BT-A||Fixed Line Telecommunications|
|Compass Group||CPG||Support Services|
|CRH plc||CRH||Construction & Materials|
|DCC plc||DCC||Support Services|
|Dechra Pharmaceuticals||DPH||Health Care|
|Entain||ENT||Travel & Leisure|
|Evraz||EVR||Industrial Metals & Mining|
|Ferguson plc||FERG||Support Services|
|Flutter Entertainment||FLTR||Travel & Leisure|
|GlaxoSmithKline||GSK||Pharmaceuticals & Biotechnology|
|Halma||HLMA||Electronic & Electrical Equipment|
|Hargreaves Lansdown||HL||Financial Services|
|Hikma Pharmaceuticals||HIK||Pharmaceuticals & Biotechnology|
|IHG Hotels & Resorts||IHG||Travel & Leisure|
|Intermediate Capital Group||ICP||Investment Services|
|International Airlines Group||IAG||Travel & Leisure|
|JD Sports||JD||General Retailers|
|Land Securities||LAND||Real Estate Investment Trusts|
|Legal & General||LGEN||Life Insurance|
|Lloyds Banking Group||LLOY||Banks|
|London Stock Exchange Group||LSEG||Financial Services|
|Meggitt||MGGT||Aerospace & Defence|
|Melrose Industries||MRO||Automobiles & Parts|
|Mondi||MNDI||Forestry & Paper|
|National Grid plc||NG||Gas, Water & Multi-utilities|
|Next plc||NXT||General Retailers|
|Ocado Group||OCDO||Food & Drug Retailers|
|Pershing Square Holdings||PSH||Financial Services|
|Persimmon plc||PSN||Household Goods & Home Construction|
|Phoenix Group||PHNX||Life Insurance|
|Polymetal International||POLY||Precious Metals & Mining|
|Prudential plc||PRU||Life Insurance|
|Reckitt||RKT||Household Goods & Home Construction|
|Rentokil Initial||RTO||Support Services|
|Rolls-Royce Holdings||RR||Aerospace & Defence|
|Royal Mail||RMG||Industrial Transportation|
|Sage Group||SGE||Software & Computer Services|
|Sainsbury's||SBRY||Food & Drug Retailers|
|Scottish Mortgage Investment Trust||SMT||Equity Investment Instruments|
|Segro||SGRO||Real Estate Investment Trusts|
|Severn Trent||SVT||Gas, Water & Multi-utilities|
|Shell||RDSA||Oil & Gas Producers|
|DS Smith||SMDS||General Industrials|
|Smiths Group||SMIN||General Industrials|
|Smith & Nephew||SN||Health Care Equipment & Services|
|Smurfit Kappa||SKG||General Industrials|
|Spirax-Sarco Engineering||SPX||Industrial Engineering|
|St. James's Place plc||STJ||Financial Services|
|Taylor Wimpey||TW||Household Goods & Home Construction|
|Tesco||TSCO||Food & Drug Retailers|
|United Utilities||UU||Gas, Water & Multi-utilities|
|Vodafone Group||VOD||Mobile Telecommunications|
All changes are due to market capitalisation unless noted otherwise.
Source: "FTSE: FTSE 100 Constituent Changes" (PDF; 57.9 KB)
The oldest continuous index in the UK is the FT 30, also known as the Financial Times Index or the FT Ordinary Index (FTOI). It was established in 1935 and nowadays is largely obsolete due to its redundancy. It is similar to the Dow Jones Industrial Average, and companies listed are from the industrial and commercial sectors. Financial sector companies and government stocks are excluded.
Of the original constituents, three are currently in the FTSE 100: Tate & Lyle, Imperial Tobacco and Rolls-Royce, although Rolls-Royce has not been continuously listed and Imperial Tobacco was a subsidiary of Hanson for a number of years, and is now renamed as Imperial Brands. Only one of the original FT 30 companies is still in that index: Tate & Lyle (membership is not strictly based on market capitalisation, so this does not mean they are necessarily among the top thirty companies in the FTSE 100). The best performer from the original lineup has been Imperial Tobacco.
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