FTSE 100 Index Historical Components & Changes

The table below lists the historical constituents of FTSE 100 index for the past six years. FTSE 100 includes one hundred companies but has currently 101 components. Royal Dutch Shell has two different share classes that are both part of the index. If a company was part of the index during the last trading day of a year, it is marked as X.

For full details of the component changes, check the historical datasets provided by Siblis Research.

FTSE 100 Historical Components (Dec 31st)



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FTSE 100 Constituent Changes

Changes to FTSE 100 index constituents in 2016

During 2016, twelve constituents were replaced. In December, Smurfit Kappa Group and ConvaTec Group replaced Poylmetal Int’l and Travis Perkins. In October, Croda International plc was added and SABMiller plc was removed. In September, Poylmetal Int’l and Micro Focus International replaced Berkeley Group Holdings and ARM Holdings plc. In June, Smiths Group and Hikma Pharmaceuticals replaced Rexam and Inmarsat plc.

The Financial Times Stock Exchange 100 Index

FTSE 100 index was created on January 1984. The index weight are calculated based on the free-float market capitalizations of the constituents. The constituents of the FTSE are reviewed and updated four times a year. Even though the index follows companies listed in London, FTSE 100 is not a very good indicator for the UK economy as a whole because many of the companies with the largest weights generate most of their revenues somewhere else than from UK. On 31st July 2015, the total market capitalization of FTSE 100 companies was 1,709,781 million GDP.

The Index is managed by FTSE Group that is part of the London Stock Exchange Group. Other major indexes related to London Stock Exchange are FTSE All-Share Index that includes companies that cover at least 98% of market value of all UK companies and FTSE 250 Index that includes the 250 most valuable companies after the components of FTSE 100.

Does the addition to FTSE 100 index impact the stock price of a company?

Many studies have found evidence of unusual returns related to additions and deletions from the index. Dr. Bryan Mase Brunel University states that there exists significant short-term cumulative abnormal returns around the event when a company is added to FTSE 100. The analysis of long-run performance yields three-year buy-and-hold abnormal returns (measured from 21 days after the event date) of 20.93% following a stock’s addition to the index and –19.31% following a deletion of a company. Marcelo Fernandes from Queen Mary University of London and Joao Mergulhao from Getulio Vargas Foundation, Sao Paulo, have developed a trading strategy that relies on the addition/deletion probability estimates. During their follow-up period, the strategy generated an average daily excess return of 11 basis points over the FTSE 100 index.

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