10 October 2008

RNS Number: 6435F
IG Group Holdings Plc
10 October 2008

Notification of Major Interest in Shares

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 notification (yes/no)

An acquisition or disposal of voting rights Yes

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 No

Other (please specify):______________ N/A

3. Full name of person(s) subject to notification obligation: Investec Asset Management Ltd

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): 29 September 2008

6. Date on which issuer notified: 10 October 2008

7. Threshold(s) that is/are crossed or reached: 5%

8: Notified Details

A: Voting rights attached to shares

Class/type of shares

Ordinary Shares
ISIN:ISIN: GB00B06QFB75 

Situation previous to the triggering transaction 

Number of shares
17,866,694 

Number of voting rights
17,866,694 

Resulting situation after the triggering transaction

Number of shares

Number of voting rights 

Direct

Indirect
17,916,336 

Percentage of voting rights

Direct

Indirect
5.01%

B: Financial Instruments

Resulting situation after the triggering transaction

Type of financial instrument 

Expiration date 

Exercise/ conversion period/date  

No. of voting rights that may be acquired (if the instrument exercised/converted) 

Percentage of voting rights

Total (A+B)

Number of voting rights 
17,916,336 

Percentage of voting rights
5.01%

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:

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

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

13. Additional information:

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

15. Contact telephone name: 020 7896 0011