Holding(s) in Company

IG Group Holdings plc
09 January 2008


RNS Number:
IG Group Holdings Plc - Notification of substantial shareholding
9 January 2008


TR-1: Notifications of Major Interests in Shares

1. Identity of the issuer or the underlying issuer of existing shares to which
voting rights are attached:
   IG Group Holdings PLC

2. Reason for the notification
(please place an X inside the appropriate bracket/s):

An acquisition or disposal of voting rights: ( X )

An acquisition or disposal of financial instruments which may result in the
acquisition of shares already issued to which voting rights are attached: ( )

An event changing the breakdown of voting rights: ( )

Other (please specify) : ( )
.................

3. Full name of person(s) subject to notification obligation:
    ReachCapital Management, LLC

4. Full name of shareholder(s) (if different from 3) :
.................

5. Date of transaction (and date on which the threshold is crossed or reached if
different):
   January 4, 2008

6. Date on which issuer notified:
   January 8, 2008

7. Threshold(s) that is/are crossed or reached:
   3% filing threshold.

8. Notified Details:

A: Voting rights attached to shares

Class/type of shares if possible use      Situation previous to the triggering
ISIN CODE                                             transaction
                                        Number of shares     Number of voting rights

Ordinary                                     9,872,084               9,872,084


                                    Resulting situation after the triggering
                                                   transaction
Class/type of shares if possible   Number of     Number of voting      % of voting
use ISIN CODE                      shares        rights                rights
                                                 Direct    Indirect    Direct     Indirect

Ordinary                            9,524,042    2.91%                 2.91%


B: Financial Instruments

Resulting situation after the triggering transaction

Type of      Expiration Exercise/     No. of voting rights that may be  % of
financial    date       conversion    acquired (if the instrument       voting
instrument              period/date   exercised/ converted)             rights


Total (A+B)
Number of voting rights                      % of voting rights

     9,524,042                                   2.91%

9. Chain of controlled undertakings through which the voting rights and/or the
financial instruments are effectively held, if applicable :
.................

Proxy Voting:

10. Name of proxy holder:
   ReachCapital Management, LLC

11. Number of voting rights proxy holder will cease to hold:
.................

12. Date on which proxy holder will cease to hold voting rights:
.................

13. Additional information:
   Sold below reporting threshold of 3%.

14. Contact name:
   Guy Abbi, Company Secretary
   IG Group holdings plc

15. Contact telephone number:
   020 7896 0011




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