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Financial Times Share Indexes: Understanding Major Market Benchmarks

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Explore the comprehensive world of Financial Times Share Indexes, including historical context, types, key events, models, and their importance in finance.

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The Financial Times Share Indexes are a group of share indexes published by the Financial Times of London. They encompass a range of indexes including the Financial Times Industrial Ordinary Share Index, the Financial Times-Stock Exchange 100 Share Index (commonly known as the “Footsie”), and several other key indexes used globally to gauge the performance of stock markets.

Types

The Financial Times publishes several key indexes, each serving different purposes for investors:

  • FTSE 100: Tracks the top 100 companies by market capitalization listed on the London Stock Exchange.
  • FTSE 250: Represents the next 250 largest companies after the FTSE 100.
  • FTSE All-Share: Includes all eligible companies listed on the London Stock Exchange.
  • FT30: Focuses on 30 significant industrial companies.

FTSE 100

The FTSE 100 is often viewed as a barometer of the UK’s economy and market sentiment. It covers approximately 81% of the UK market capitalization, making it a crucial indicator.

Mathematical Formulas/Models

The FTSE indexes use the market capitalization-weighted methodology, represented by:

$$ \text{Index Level} = \frac{\sum (\text{Current Price} \times \text{Shares Outstanding})}{\text{Base Value}} \times \text{Base Index Value} $$

Importance

The Financial Times Share Indexes are vital for:

  • Benchmarking: Allowing investors to compare the performance of their portfolio against the market.
  • Investment Decisions: Helping in the construction of index-tracking funds and ETFs.
  • Economic Indicators: Reflecting broader economic trends.
  • Market Capitalization: The total market value of a company’s outstanding shares.
  • Index Fund: A fund designed to track the performance of a specific index.

FAQs

What is the FTSE 100?

The FTSE 100 is an index representing the 100 largest companies listed on the London Stock Exchange.

How is the FTSE 100 calculated?

It uses a market capitalization-weighted method, factoring in the current share prices and number of shares outstanding.
Revised on Monday, May 18, 2026
Financial Times Industrial Ordinary Share Index
Financial Times Stock Exchange Group (FTSE)