Section 198 Notification

IG Group Holdings plc
23 January 2007


IG Group Holdings plc

Disclosure of Interest in share Under Section 198

IG Group Holdings plc (the 'Company') has received notification in accordance
with Sections 198-202 of the Companies Act 1985 that as at 19 January,
2007 Legal & General Investment Management Limited and/or its subsidiaries held
in nominee accounts the following relevant share capital of the Company:

Material Interest

HSBC BANK PLC Alc 914945                             35,855
HSBC BANK PLC Alc 636544                            160,749
HSBC BANK PLC Alc 775245                            791,589
HSBC BANK PLC Alc 357206                          6,756,128
HSBC BANK PLC Alc 866203                            630,052
HSBC BANK PLC Alc 969995                            965,098
HSBC BANK PLC Alc 999392                             28,157
HSBC BANK PLC Alc 360509                            579,151
                                                  ---------           ---------
                                                  9,946,779               3.03%
                                                 ===========         ========== 


Legal & General Investment Management Limited currently have a notifiable
interest in 9,946,779 GBPO.00005 shares which represents 3.03% of that class of
the Company share capital calculated on an issued share capital of 327,500,959
GBPO.00005 shares.

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