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.

United Kingdom's main stock market index, the GB100, fell to 9690 points on December 2, 2025, losing 0.13% from the previous session. Over the past month, the index has declined 0.12%, though it remains 15.91% 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 December of 2025.

Key information about United Kingdom Market Capitalization

• United Kingdom Market Capitalization accounted for 3,825.441 USD bn in Oct 2025, compared with a percentage of 3,793.672 USD bn in the previous month
• UK Market Capitalization is updated monthly, available from Apr 1999 to Oct 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.

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.

Largest UK companies by market cap

The largest UK companies by market cap are those listed on the UK stock exchange with the highest total value of all shares, representing their perceived worth by investors. These companies, such as BP, Shell, Unilever, HSBC Holdings, and GlaxoSmithKline, are considered some of the most valuable and powerful in the country, with a significant impact on the global economy. AstraZeneca, Rio Tinto, and Reckitt Benckiser are also notable high-market cap companies in the UK, reflecting their strong foothold in their respective markets.

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.

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

Graph and download economic data for Financial Market: Share Prices for United Kingdom (SPASTT01GBM661N) from Dec 1957 to Oct 2025 about stock market and United Kingdom.

The United Kingdom: Stock market value traded, percent of GDP: The latest value from 2022 is 25.4 percent, a decline from 27.19 percent in 2021. In comparison, the world average is 34.95 percent, based on data from 74 countries. Historically, the average for the United Kingdom from 1975 to 2022 is 50.17 percent. The minimum value, 5.83 percent, was reached in 1979 while the maximum of 129.28 percent was recorded in 2010.

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.

Key information about United Kingdom Market Capitalization: % of GDP

• United Kingdom Market Capitalization accounted for 82.7 % of its Nominal GDP in Dec 2024, compared with a percentage of 69.6 % 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 130.7 % in Dec 2006 and a record low of 69.6 % 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 9,720.5 points in Nov 2025

United Kingdom UK: Stocks Traded: Total Value data was reported at 2,357.017 USD bn in 2014. This records an increase from the previous number of 1,675.053 USD bn for 2013. United Kingdom UK: Stocks Traded: Total Value data is updated yearly, averaging 487.920 USD bn from Dec 1975 (Median) to 2014, with 40 observations. The data reached an all-time high of 3,947.700 USD bn in 2007 and a record low of 19.361 USD bn in 1977. United Kingdom UK: Stocks Traded: Total Value 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. The value of shares traded is the total number of shares traded, both domestic and foreign, multiplied by their respective matching prices. Figures are single counted (only one side of the transaction is considered). Companies admitted to listing and admitted to trading are included in the data. 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.

The market value of banks trading on the London Stock Exchange (LSE) fluctuated between June 2007 and December 2023. The lowest value during this period was observed in June 2020 at ****** billion British pounds, while the highest value was recorded in December 2016 at *** billion British pounds. As of December 2023, the market capitalization of banks listed on the LSE was over *** billion British pounds.

London Stock Exchange stock price, live market quote, shares value, historical data, intraday chart, earnings per share and news.

The United Kingdom: Stock market capitalization, billion USD: The latest value from 2022 is 3095.98 billion U.S. dollars, a decline from 3799.46 billion U.S. dollars in 2021. In comparison, the world average is 1225.97 billion U.S. dollars, based on data from 75 countries. Historically, the average for the United Kingdom from 1975 to 2022 is 1673.7 billion U.S. dollars. The minimum value, 30.1 billion U.S. dollars, was reached in 1979 while the maximum of 3946.88 billion U.S. dollars was recorded in 2013.

London Stock Exchange reported GBP47.16B in Market Capitalization this December of 2025, considering the latest stock price and the number of outstanding shares.Data for London Stock Exchange | LSE - Market Capitalization including historical, tables and charts were last updated by Trading Economics this last December in 2025.

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.

The most complete UK stock market historical price covering 1000 companies from 1988 - 2024. Feedback and suggestions are welcomed.

• 1026 companies
• Start date: 1988-05-03
• End date: 2024-05-22

United Kingdom Market Capitalization: LSE: Annual: Equities data was reported at 2,624,992.105 GBP mn in 2017. This records an increase from the previous number of 2,366,329.969 GBP mn for 2016. United Kingdom Market Capitalization: LSE: Annual: Equities data is updated yearly, averaging 855,216.150 GBP mn from Dec 1972 (Median) to 2017, with 46 observations. The data reached an all-time high of 2,624,992.105 GBP mn in 2017 and a record low of 17,465.700 GBP mn in 1974. United Kingdom Market Capitalization: LSE: Annual: Equities 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.

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 December 2 of 2025.