Holding(s) in Company

London Stock Exchange Plc
18 April 2006

London Stock Exchange plc

18 April 2006

London Stock Exchange plc received the following letter from UBS AG on 18 April
2006.

Pursuant to Section 198 of the Companies Act 1985 we write to inform you that as
at the close of its business on 12 April 2006, UBS AG, acting through its
business group and legal entities detailed below, had an interest in 15,397,420
ordinary shares of the London Stock Exchange, representing 6.01 per cent of the
issued share capital of the Company (256,230,499).



* UBS AG London Branch holds 188,000 of the Relevant Shares by virtue of section
208(5) of the Act.

UBS business group/legal entity              Breakdown of position held (%)

*UBS AG London Branch                        14,955,802 shares            5.84%

UBS Global Asset Management Life Limited     441,618 shares               0.17%

UBS AG - Total                               15,397,420 shares            6.01%





London Stock Exchange plc, name of contact and telephone number for queries

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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