Cable & Wireless Worldwide, Home Retail Group and Segro are to be relegated from the FTSE 100 this month, it was confirmed today.

In the FTSE UK Index Series’ quarterly review, it was decided that financial services group Resolution, and engineering businesses Tomkins and Weir Group will join the UK’s leading blue chip index, from their current positions in the FTSE 250. 

All changes from this review will be implemented at the close of business Friday 17 September 2010 and will take effect from the start of trading on Monday 20 September 2010.

The FTSE 100 Index represents the 100 biggest blue chip companies and is one of the world’s most recognised indices, accounting for 7.8 per cent of the world’s equity market capitalisation.

The index currently reflects approximately 85 per cent of the UK market, providing a broad and accurate investment tool for pension funds, financial products and investment portfolios in the UK and around the globe.

The FTSE committee said in a statement today that the impartial reviews ensure the UK indices remain an accurate reflection of the market they represent and are seen as an essential component to the running of the indices.