Share repurchase programme

London Stock Exchange Group PLC
14 March 2007

London Stock Exchange Group plc

14 March 2007



London Stock Exchange Group plc - Irrevocable, Non-discretionary Share
Repurchase Programme



London Stock Exchange Group plc (the 'Company') announces that it has commenced
a non-discretionary programme to purchase ordinary shares for cancellation, in
relation to its repurchase programme of up to £250m, during the period
commencing on 14 March 2007 and ending on 31 August 2007.



The buyback programme will be managed by the Company's brokers, JPMorgan
Cazenove and Lehman Brothers, who are independent third parties that make
trading decisions independently of, and uninfluenced by, the Company.



Any acquisitions will be effected within certain pre-set parameters, and in
accordance with both the Company's general authority to repurchase shares and
Chapter 12 of the Listing Rules which requires that the maximum price paid be
limited to no more than 5 per cent above the average market value for the shares
as derived from the London Stock Exchange Daily Official List for the five
business days immediately prior to such purchase.



Further information is available from:


London Stock Exchange              John Wallace - Media                         020 7797 1222
                                   Paul Froud - Investor Relations              020 7797 3322

JPMorgan Cazenove                  Richard Locke                                020 7155 4706
Lehman Brothers                    Stephen Pull                                 0207 103 1095





END




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