FTSE Index

The FTSE 100 is a stock market index composed of the 100 largest companies listed on the London Stock Exchange (LSE) by market capitalization. It is one of the most widely followed equity indices in the United Kingdom and is often used as a gauge of the performance of the UK stock market as a whole. The FTSE 100 is maintained by the FTSE Russell, a subsidiary of the London Stock Exchange Group. It is weighted by market capitalization, meaning that companies with higher market values have a greater impact on the index's movements.