The FTSE 100 in Detail: Origin, Functioning, and Impact

The FTSE 100 Index, short for Financial Times Stock Exchange 100 Index, stands as a key benchmark for investors and traders worldwide. This index comprises the 100 largest companies listed on the London Stock Exchange, offering insight into the performance of the British market as a whole. Its broad base of individual stocks gives it a robust signal, surpassing indices such as the US Dow Jones or the German DAX in terms of reliability.

What Defines the FTSE 100 Index？

The FTSE 100 is a stock market index that tracks the performance of the 100 largest companies listed on the London Stock Exchange, the UK's main stock market. Created through a partnership between the Financial Times and the London Stock Exchange (FTSE), this index is a key indicator of the British financial landscape. Its composition covers various economic sectors, including financial services, energy, mining, industry, healthcare, and consumer goods.

This index serves as a yardstick for assessing the overall health of the British stock market and is often considered a barometer of the UK economy. Given the significant global presence of many of the companies that comprise it, the FTSE 100 transcends national borders, also reflecting the strength and competitiveness of multinationals in the global market.

How Are Companies Selected for the FTSE 100？

The selection of companies that make up the FTSE 100 is based primarily on their market capitalization, which represents the total value of their outstanding shares. The index includes the 100 companies with the largest market capitalization listed on the London Stock Exchange.

In addition to capitalization, the liquidity of the shares is considered, ensuring that the securities of the companies included are actively traded on the market. The index is reviewed quarterly to ensure that the constituent companies continue to meet the criteria for size, liquidity, and listing on the London Stock Exchange. Companies whose capitalization has declined significantly may be replaced by those that have experienced notable growth in market value.

The London Stock Exchange: Epicenter of the British Market

The London Stock Exchange is the UKs leading stock market, with a significant influence on the development of international stock markets. Its FTSE index is highly regarded by analysts worldwide. With a history dating back more than 300 years, the LSEG (London Stock Exchange Group) was formed in October 2007 following the merger of the London Stock Exchange with the Milan Stock Exchange (Borsa Italiana).

In addition to the FTSE 100, the London Stock Exchange is home to other important indices:

• FTSE 250: Represents the 250 companies with the next highest market capitalization after the FTSE 100.

• FTSE All-Share Index: A broader index covering all companies listed on the London Stock Exchange.

• FTSE AIM All-Share Index: Focuses on companies listed on the Alternative Investment Market (AIM), a market for smaller, growing companies.

• FTSE SmallCap Index: Includes companies with a market capitalization smaller than those in the FTSE 100 and FTSE 250.

Origins and Genesis of the FTSE 100

The FTSE 100 was created to provide a clear and accurate view of the performance of the leading companies listed on the London Stock Exchange. It was the result of a collaboration between the Financial Times and the London Stock Exchange, which explains its name. The primary objective was to establish an index that would serve as a benchmark for investors and a reliable indicator of the British economy.

Regular Adjustments and Reviews

The FTSE 100 undergoes quarterly reviews (in March, June, September, and December) to ensure that it continues to represent the 100 companies with the highest market capitalization on the London Stock Exchange. These reviews keep the index up to date and accurately reflect market dynamics.

• Quarterly Reviews: Companies with significantly increased market capitalization may be added, while those whose value has declined may be removed.

• Adjustments for Mergers and Acquisitions: The index is also adjusted in response to major corporate events that alter the size and structure of companies.

Global Impact of the FTSE 100

Despite being a British index, the FTSE 100 has a global reach due to the international nature of many of its constituent companies. Firms such as HSBC, BP, and GlaxoSmithKline operate across multiple countries, making the index a reflection of both the UK economy and global economic trends.

Significance and Importance of the FTSE 100 in the Economy

The FTSE 100 serves as an essential barometer of the UK‘s economic health. By bringing together leading companies, it offers a comprehensive view of the performance of the British market. Investors, traders, and analysts use it to assess the performance of large companies and, by extension, the country’s economy.