United Kingdom's main stock market index, the GB100, fell to 9117 points on September 2, 2025, losing 0.87% from the previous session. Over the past month, the index has declined 0.13%, though it remains 9.86% higher than a year ago, according to trading on a contract for difference (CFD) that tracks this benchmark index from United Kingdom. United Kingdom Stock Market Index (GB100) - values, historical data, forecasts and news - updated on September of 2025.

As of January 29, 2025, the FTSE index stood at ******** points - well above its average value of around ***** points in the past few years.On the 12th of March 2020, amid the escalating crisis surrounding the coronavirus and fears of a global recession, the FTSE 100 suffered the second largest one day crash in its history and the biggest since the 1987 market crash. On the 23rd of March, the FTSE index saw its lowest value this year to date at ******** but has since began a tentative recovery. With the continuation of the pandemic, the FTSE 100 index was making a tentative recovery between late March 2020 and early June 2020. Since then the FSTE 100 index had plateaued towards the end of July, before starting a tentative upward trend in November. FTSE 100 The Financial Times Stock Exchange 100 Index, otherwise known as the FTSE 100 Index is a share index of the 100 largest companies trading on the London Stock Exchange in terms of market capitalization. At the end of March 2024, the largest company trading on the LSE was Shell. The largest ever initial public offering (IPO) on the LSE was Glencore International plc. European stock exchanges While nearly every country in Europe has a stock exchange, only five are considered major, and have a market capital of over one trillion U.S dollars. European stock exchanges make up two of the top ten major stock markets in the world. Europe’s biggest stock exchange is the Euronext which combines seven markets based in Belgium, France, England, Ireland, the Netherlands, Norway, and Portugal.

The total market capitalization of all companies trading on the London Stock Exchange (LSE) took a large hit during the early months of 2020, due mostly part to a mass sell-off of shares caused by the fears surrounding the global coronavirus (COVID-19) pandemic. Between December 2019 and March 2020, the total value of market capitalization decreased by more than *** billion British pounds (GBP). The overall number of companies currently trading has also been falling. The number of daily trades spiked in March 2020 and then decreased as well. As of February 2025, the total market value of all companies trading on the London Stock Exchange stood at over **** trillion British pounds. European stock exchanges While almost every country has a stock Exchange, in Europe only five exchanges are considered major, with total market capital amounting to over *** trillion euros. The London Stock Exchange is the second largest in Europe and tenth largest worldwide. As of January 2025, Europe’s largest stock exchange, Euronext had a total market capital of listed companies valued at approximately **** trillion U.S. dollars.

Stock market return (%, year-on-year) in United Kingdom was reported at 14.38 % in 2021, according to the World Bank collection of development indicators, compiled from officially recognized sources. United Kingdom - Stock market return (%, year-on-year) - actual values, historical data, forecasts and projections were sourced from the World Bank on September of 2025.

Key information about United Kingdom Market Capitalization

• United Kingdom Market Capitalization accounted for 3,182.091 USD bn in Feb 2025, compared with a percentage of 3,120.628 USD bn in the previous month
• UK Market Capitalization is updated monthly, available from Apr 1999 to Feb 2025
• The data reached an all-time high of 4,211.587 USD bn in Oct 2007 and a record low of 1,402.869 USD bn in Sep 2002

CEIC converts monthly Market Capitalization into USD. London Stock Exchange provides Market Capitalization in local currency. The Federal Reserve Board period end market exchange rate is used for currency conversions. Market capitalization includes only domestically listed companies. As of 2017, definitions from the revised Markets in Financial Instruments Directive (MiFID II) have been introduced.

United Kingdom Market Capitalisation: UK Main Market: Total data was reported at 2,499,251.385 GBP mn in Mar 2025. This records a decrease from the previous number of 2,527,274.100 GBP mn for Feb 2025. United Kingdom Market Capitalisation: UK Main Market: Total data is updated monthly, averaging 2,256,749.813 GBP mn from Feb 2017 (Median) to Mar 2025, with 98 observations. The data reached an all-time high of 2,527,274.100 GBP mn in Feb 2025 and a record low of 1,618,175.400 GBP mn in Oct 2020. United Kingdom Market Capitalisation: UK Main Market: Total data remains active status in CEIC and is reported by London Stock Exchange. The data is categorized under Global Database’s United Kingdom – Table UK.Z004: London Stock Exchange: Market Capitalisation: Main Market.

Between the first quarter of 2007 and the fourth quarter of 2024, the lowest market capitalization of all companies listed on the London Stock Exchange (LSE) was recorded in the first quarter of 2009, at *** trillion British pounds. As of the fourth quarter of 2024, the market capitalization of the entire LSE amounted to *** trillion British pounds. Although the value of companies trading has fluctuated and increased overall, a downward trend can be seen in the number of companies listed on the LSE.

Stock and commodity exchanges can benefit from various sources of revenue, ranging from fees charged through the purchasing and selling of stocks and commodities to the listing of companies on exchanges with IPOs. Yet, this hasn't meant exchanges have been free of challenges, with many companies looking to more attractive overseas markets in countries like the US that embrace stronger growth. The most notable culprits have been ARM and CRH, refusing to put up with the increasingly cheaper valuations offered by UK stock exchanges. Stock and commodity exchange revenue is expected to boom at a compound annual rate of 11.5% over the five years through 2024-25 to £15.4 billion. Boosted by the London Stock Exchange Group's Refinitiv purchase in 2021-22, the growth numbers seem inflated. The industry saw ample consolidations, aided by MiFID II's initiation in 2018. However, M&As have now decreased because of high borrowing costs. New reporting demands have bumped up regulatory costs, resulting in thinner profits. Banks, aligning with Basel IV, are pulling back on investments. Post-COVID market turbulence fuelled trades, but it's slowing down with economic stabilisation. The inflation slowdown pushes investors towards higher-value securities, boosting trade value despite lower volumes. The weak pound has been beneficial for revenue, especially for the LSEG, bolstered by dollar-earning companies in the FTSE 100. Stock and commodity exchange industry revenue is expected to show a moderate increase of 1.3% in 2024-25. Revenue is forecast to climb at a compound annual rate of 4.1% over the five years through 2029-30 to £18.8 billion. The cautious descent of interest rates from the Bank of England will slow down volatility and ensure greater business confidence in the UK. This will bring back up consolidation activity to support revenue growth, reviving the digital information and exchange markets. The most pressing concern for the industry will be potential limitations on access to the EEA for the clearing segment of the industry, which could shatter short-term growth and keep the tap running for companies exiting UK exchanges.

United Kingdom UK: Market Capitalization: Listed Domestic Companies data was reported at 1,868.153 USD bn in 2008. This records a decrease from the previous number of 3,846.462 USD bn for 2007. United Kingdom UK: Market Capitalization: Listed Domestic Companies data is updated yearly, averaging 972.400 USD bn from Dec 1975 (Median) to 2008, with 34 observations. The data reached an all-time high of 3,846.462 USD bn in 2007 and a record low of 30.096 USD bn in 1979. United Kingdom UK: Market Capitalization: Listed Domestic Companies data remains active status in CEIC and is reported by World Bank. The data is categorized under Global Database’s United Kingdom – Table UK.World Bank.WDI: Financial Sector. Market capitalization (also known as market value) is the share price times the number of shares outstanding (including their several classes) for listed domestic companies. Investment funds, unit trusts, and companies whose only business goal is to hold shares of other listed companies are excluded. Data are end of year values converted to U.S. dollars using corresponding year-end foreign exchange rates.; ; World Federation of Exchanges database.; Sum; Stock market data were previously sourced from Standard & Poor's until they discontinued their 'Global Stock Markets Factbook' and database in April 2013. Time series have been replaced in December 2015 with data from the World Federation of Exchanges and may differ from the previous S&P definitions and methodology.

Key information about United Kingdom Market Capitalization: % of GDP

• United Kingdom Market Capitalization accounted for 83.8 % of its Nominal GDP in Dec 2024, compared with a percentage of 70.5 % in the previous year
• UK Market Capitalization: % Nominal GDP is updated yearly, available from Dec 1999 to Dec 2024
• The data reached an all-time high of 131.2 % in Dec 2006 and a record low of 70.5 % in Dec 2023

CEIC calculates annual Market Capitalization as % of Nominal GDP from monthly Market Capitalization and quarterly Nominal GDP. London Stock Exchange provides Market Capitalization in local currency. The Office for National Statistics provides Nominal GDP in local currency. As of 2017, definitions from the revised Markets in Financial Instruments Directive (MiFID II) have been introduced. Market Capitalization includes domestically listed companies only.


Further information about United Kingdom Market Capitalization: % of GDP

• In the latest reports, FTSE All-Share recorded a daily P/E ratio of 14.4 in Jul 2022
• FTSE 100 closed at 8,674.0 points in Jan 2025

Graph and download economic data for Stock Market Capitalization to GDP for United Kingdom (DDDM01GBA156NWDB) from 1975 to 2014 about market cap, stock market, United Kingdom, capital, and GDP.

Over the five years through 2024-25, revenue has rocketed at a compound annual rate of 14.5% to £2.3 billion. The Online Stock Brokerages industry has gained users quickly, as many investors left their brokers and started trading online. The online space offered a quick and easy way for less knowledgeable people to start investing and experienced traders to get real-time updates. Recovered incomes, volatile stock markets, an increasing number of mobile connections and a growing appetite for online stock trading have fuelled revenue growth. The online stock brokerage industry experienced a rapid upward shift in revenue during the 2020-21 market volatility caused by the pandemic, rewarding commission-free platforms like Trading212. The sector managed to capitalise on surging and declining phases. Innovations became critical, with brokerages like Trading212, FreeTrade and eToro introducing attractive features to win over customers, like replicating other trade moves. Despite the sector's vulnerability during the sharp sink of Bitcoin in 2022, its subsequent rebound in 2024-25 brought renewed prospects. Offering stocks and shares ISAs and SIPPs helped certain brokerages attract more tax-savvy customers. Simultaneously, intense price competition saw various platforms reduce their commissions to lure new users, leading to a climb in revenue of 7.7% in 2024-25. Over the five years through 2029-30, revenue is set to push up at a compound annual rate of 7.9% to £3.3 billion. Investor uncertainty will weaken as macro-headwinds subside and stock markets worldwide stabilise. The value of UK and US stock markets is forecast to strengthen, enticing traders to online platforms. As UK business profits recover due to stability, businesses can manage costs efficiently, leading to increased returns and more trade commissions for online stock brokers. The brokerage industry faces fierce price competition, with companies reducing commissions to attract and retain users alongside developing novel product offerings, like AI insights and advice, ISAs, extended trading hour products and tight cybersecurity. The average profit margin is expected to improve as industry entrants, including eToro (UK) Ltd, become profitable after years of significant losses resulting from investing heavily in R&D and marketing to attract users.

The UK Mutual Funds Market is Segmented by Fund Type (Equity, Debt, Multi-Asset, Money Market, and Other Fund Types), by Investor Type (Households, Monetary Financial Institutions, General Government, Non-Financial Corporations, Insurers & Pension Funds, and Other Financial Intermediaries). The Report Offers Market Size and Forecasts for the UK Mutual Funds Market in Value (USD) for all the Above Segments.

United Kingdom UK: Market Capitalization: Listed Domestic Companies: % of GDP data was reported at 64.629 % in 2008. This records a decrease from the previous number of 125.114 % for 2007. United Kingdom UK: Market Capitalization: Listed Domestic Companies: % of GDP data is updated yearly, averaging 87.239 % from Dec 1975 (Median) to 2008, with 34 observations. The data reached an all-time high of 177.400 % in 1999 and a record low of 6.368 % in 1980. United Kingdom UK: Market Capitalization: Listed Domestic Companies: % of GDP data remains active status in CEIC and is reported by World Bank. The data is categorized under Global Database’s United Kingdom – Table UK.World Bank.WDI: Financial Sector. Market capitalization (also known as market value) is the share price times the number of shares outstanding (including their several classes) for listed domestic companies. Investment funds, unit trusts, and companies whose only business goal is to hold shares of other listed companies are excluded. Data are end of year values.; ; World Federation of Exchanges database.; Weighted average; Stock market data were previously sourced from Standard & Poor's until they discontinued their 'Global Stock Markets Factbook' and database in April 2013. Time series have been replaced in December 2015 with data from the World Federation of Exchanges and may differ from the previous S&P definitions and methodology.

Number of Businesses statistics on the Food Markets industry in the UK

The report covers UK Online Trading Platform Market Revenue, UK Online Trading Platform Market Growth, UK Online Trading Platform Market Major Players, UK Online Trading Platform Market Analysis, Cloud Services Market.

Prices for United Kingdom Stock Market Index (GB100) including live quotes, historical charts and news. United Kingdom Stock Market Index (GB100) was last updated by Trading Economics this September 2 of 2025.

As of May 2025, the pharmaceutical company AstraZeneca was the leading company listed on the London Exchange (LSE), with a market capitalization of 159 billion British pounds. This made them the largest of all companies listed on the LSE. Seen as the heart of the global financial community, the London Stock Exchange is the second-largest stock market in Europe and ranks eighth globally. Key information The London Stock Exchange (LSE) is among the largest stock market operators globally and ranks 11th in terms of the oldest stock exchanges in existence, with 224 years of operation as of 2025. Performance after Covid The COVID-19 pandemic had a profound effect on the global economy, causing considerable volatility on the stock market. The London Stock Exchange (LSE) saw a notable decline in the market capitalization value of its listed companies, reaching its lowest value in March 2020 at approximately three trillion British pounds in correlation with a surge in the average daily number of trades, which peaked at over two billion. Following this initial reaction, the LSE observed a decrease in the average daily active traders, alongside a gradual recovery in the market capitalization of the listed companies.

The UK IT Services Market Report is Segmented by Service Type (IT Consulting and Implementation, IT Outsourcing, Business Process Outsourcing, and More), End-User Enterprise Size (Small and Medium Enterprises, and Large Enterprises), Deployment Model (Onshore Delivery, Nearshore Delivery, and More), and End-User Vertical (BFSI, Government and Public Sector, and More). The Market Forecasts are Provided in Terms of Value (USD).

Between March 2018 and June 2024, the total market capitalization of technology companies listed on the London Stock Exchange (LSE) fluctuated from a high of almost *** billion British pounds in August 2021 to a low of ****** billion British pounds in December 2023.