Holding(s) in Company

London Stock Exchange Group PLC
21 November 2006

London Stock Exchange Group plc

21 November 2006

London Stock Exchange Group plc received the following letter from ING Wholesale
Banking on 21 November 2006.

I write to inform you that at the time of writing on 21 November 2006, ING Bank
NV had reduced its holding of ordinary shares in London Stock Exchange Group to
8,310,398.  We understand that based on a number of shares in issue of
213,641,890, the holding amounts to 3.88% and is legal and beneficial.

Given that our holding has now reduced to less than 4% 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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