Introduction

The UK stock market is one of the most important financial markets in the world. One of its key indicators is the FTSE 100 index. Many beginners search for what is FTSE 100, FTSE 100 definition, and UK FTSE 100 to understand how the market works.

What is FTSE 100?

The FTSE 100 (pronounced “Footsie 100”) is a stock market index that represents the 100 largest companies listed on the London Stock Exchange.

When people ask what is FTSE 100, the simple answer is:
It is a benchmark index that shows how the biggest UK companies are performing.

These companies include major businesses from sectors like:

• Banking

• Energy

• Healthcare

• Technology

• Consumer goods

FTSE 100 Definition

The FTSE 100 definition is:

A stock market index that tracks the performance of the 100 largest companies in the UK based on market capitalization.

This means the FTSE 100 index changes based on the share prices of these companies.