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.

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

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

Graph and download economic data for Share Prices in the United Kingdom (SPPUKQ) from Q2 1709 to Q4 2016 about academic data, United Kingdom, and price.

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 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.

United Kingdom's main stock market index, the GB100, fell to 9355 points on October 17, 2025, losing 0.86% from the previous session. Over the past month, the index has climbed 1.37% and is up 11.92% compared to the same time last year, 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 October 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.

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.

Graph and download economic data for Security Price Index, British Railway Common Shares, Stock Exchange Value for London, Great Britain (M11014GB00LONM324NNBR) from Apr 1887 to Mar 1935 about stocks, United Kingdom, securities, price index, indexes, and price.

End-of-day prices refer to the closing prices of various financial instruments, such as equities (stocks), bonds, and indices, at the end of a trading session on a particular trading day. These prices are crucial pieces of market data used by investors, traders, and financial institutions to track the performance and value of these assets over time. The Techsalerator closing prices dataset is considered the most up-to-date, standardized valuation of a security trading commences again on the next trading day. This data is used for portfolio valuation, index calculation, technical analysis and benchmarking throughout the financial industry. The End-of-Day Pricing service covers equities, equity derivative bonds, and indices listed on 170 markets worldwide.

Graph and download economic data for Volatility of Stock Price Index for United Kingdom (DDSM01GBA066NWDB) from 1985 to 2021 about volatility, stocks, United Kingdom, price index, indexes, and price.

This analysis presents a rigorous exploration of financial data, incorporating a diverse range of statistical features. By providing a robust foundation, it facilitates advanced research and innovative modeling techniques within the field of finance.

FTSE 100: Where to Next?

Financial data:

• Historical daily stock prices (open, high, low, close, volume)

• Fundamental data (e.g., market capitalization, price to earnings P/E ratio, dividend yield, earnings per share EPS, price to earnings growth, debt-to-equity ratio, price-to-book ratio, current ratio, free cash flow, projected earnings growth, return on equity, dividend payout ratio, price to sales ratio, credit rating)

• Technical indicators (e.g., moving averages, RSI, MACD, average directional index, aroon oscillator, stochastic oscillator, on-balance volume, accumulation/distribution A/D line, parabolic SAR indicator, bollinger bands indicators, fibonacci, williams percent range, commodity channel index)

Machine learning features:

• Feature engineering based on financial data and technical indicators

• Sentiment analysis data from social media and news articles

• Macroeconomic data (e.g., GDP, unemployment rate, interest rates, consumer spending, building permits, consumer confidence, inflation, producer price index, money supply, home sales, retail sales, bond yields)

Potential Applications:

• Stock price prediction

• Portfolio optimization

• Algorithmic trading

• Market sentiment analysis

• Risk management

Use Cases:

• Researchers investigating the effectiveness of machine learning in stock market prediction

• Analysts developing quantitative trading Buy/Sell strategies

• Individuals interested in building their own stock market prediction models

• Students learning about machine learning and financial applications

Additional Notes:

• The dataset may include different levels of granularity (e.g., daily, hourly)

• Data cleaning and preprocessing are essential before model training

• Regular updates are recommended to maintain the accuracy and relevance of the data

United Kingdom UK: Stocks Traded: Total Value: % of GDP data was reported at 77.974 % in 2014. This records an increase from the previous number of 61.137 % for 2013. United Kingdom UK: Stocks Traded: Total Value: % of GDP data is updated yearly, averaging 41.678 % from Dec 1975 (Median) to 2014, with 40 observations. The data reached an all-time high of 131.624 % in 2010 and a record low of 5.825 % in 1979. United Kingdom UK: Stocks Traded: Total Value: % 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. 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.; ; 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 FTSE All-Share Index shed around *********** of its value between December 2019 and March 2020, largely due to the coronavirus (COVID-19) pandemic, but likely also influenced by the uncertainty around Brexit at the time. Since then, it has recovered and reached its peak of over ***** points at the end of February 2025.The FTSE All-Share Index is the aggregation of the FTSE 100, FTSE 250 FTSE Small Cap indexes, and represents around ***** percent of the total UK market capitalization. Since December 29, 2017 the index has been comprised of the *** largest U.K. companies by market capitalization on the London Stock Exchange.

United Kingdom UK: Index: Share Price: FTSE 100 data was reported at 123.755 2010=100 in Sep 2016. This records an increase from the previous number of 113.513 2010=100 for Jun 2016. United Kingdom UK: Index: Share Price: FTSE 100 data is updated quarterly, averaging 82.851 2010=100 from Mar 1984 (Median) to Sep 2016, with 131 observations. The data reached an all-time high of 126.719 2010=100 in Jun 2015 and a record low of 19.340 2010=100 in Mar 1984. United Kingdom UK: Index: Share Price: FTSE 100 data remains active status in CEIC and is reported by International Monetary Fund. The data is categorized under Global Database’s United Kingdom – Table UK.IMF.IFS: Share Price Index: Quarterly.

Stock Price Time Series for PRS Reit PLC. The PRS REIT plc is a closed-ended real estate investment trust established to invest in the Private Rented Sector (PRS) and to provide shareholders with an attractive level of income together with the potential for capital and income growth. The Company has invested over £1bn in a portfolio of high-quality homes for private rental across the regions, having raised a total of £0.56bn (gross) through its Initial Public Offering, on 31 May 2017 and subsequent fundraisings in February 2018 and September 2021. The UK Government's Homes England has supported the Company with direct investments. The Company is listed on the Closed-ended investment funds category of the FCA's Official List and its Ordinary Shares are traded on the London Stock Exchange's Main Market. It is a constituent of the FTSE 250 Index. With 5,478 new rental homes as at 30 June 2025, the Company believes its portfolio is the largest build-to-rent single-family rental portfolio in the UK.

Polestar Automotive Holding UK stock price, live market quote, shares value, historical data, intraday chart, earnings per share and news.

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.

Gross and net capital stocks by selected industries and assets, in current prices and previous year's prices.