Holding(s) in Company

London Stock Exchange Group PLC
11 August 2006


London Stock Exchange Group plc

11 August 2006

London Stock Exchange Group plc received the following letter from ING Wholesale
Banking on 11 August 2006.

I write to inform you that as the close of business on 10 August 2006 ING Bank
NV increased its holding of ordinary shares in London Stock Exchange Group to
10,771,507.  We understand that based on a number of shares in issue of
214,638,942, the holding amounts to 5.02% and is legal and beneficial.

Given that our holding now exceeds 5% we make this disclosure to you in
accordance with our obligations under Section 198 of the Companies Act.

Lisa Condron, Company Secretary Tel: [phone]

Name and signature of authorised company official responsible for making this
notification

Lisa Condron, Company Secretary




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