Introduction to Official List

London Stock Exchange Plc
20 July 2001

                                                                  20 July 2001

       LONDON STOCK EXCHANGE SHARES COMMENCE TRADING ON THE MAIN MARKET

Shares in London Stock Exchange plc today became available on the main market
of the Exchange.

The listing of Exchange shares follows the decision by its shareholders at
yesterday's EGM to remove the 4.9 per cent shareholding limit. Since
demutualisation last year, the Exchange's shares had been traded on a matched
bargain facility provided by Cazenove.

Welcoming the listing, Clara Furse, Chief Executive of the London Stock
Exchange, said:

'This is an important milestone in our commercial development. Full listing
gives us the flexibility we need to exploit strategic business opportunities.
We have a growing business and are in a strong position to achieve our
strategic vision and objectives.'

For further information, please contact:

Media enquiries: John Wallace - 020 7797 1222