A major shake-up of the London Stock Exchange's top 100 firms, the FTSE-100, has seen seven tech and telecom firms relegated, including Marconi and Telewest.
Marconi, £4.4bn in debt and now valued at less than £1bn, will be ejected from the flagship index on 24 September, along with Colt Telecom, Telewest, Energis, Spirent, software firm Misys and computer services group CMG. ITV broadcaster Carlton Communications also drops out.
The companies will lose the support of tracking funds which buy shares in the top 100 companies, putting further pressure on their falling share prices.
They will be replaced by insurer Friends Provident, exploration firm Enterprise Oil, plumbing supplier Wolseley, water company Severn Trent, property group British Land, financial services firm Man Group, mortgage bank Northern Rock and electricity supplier Innogy.
Tech and telecom stocks remaining in the FTSE100 include BT, Logica and Electrocomponents.
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