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

Other (please specify):______________

3. Full name of person(s) subject to notification obligation:

Artemis Investment Management Limited

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

Artemis Income Fund

Artemis Capital Fund

MT Income Fund

City of London Cash A/c

City of London Pension A/c

BHS Senior Management Scheme

BHS Pension Scheme

P&O Pension Scheme

Institutional Equity Income Fund

Hampstead Heath (COL)

Charities Pool (COL)

SICAV - Pan European Equity

L&G Barclays Income 1

L&G Barclays Income 2

BBC PENSION TRUST

Skandia Investment Fund

SAUL

Artemis Strategic Assets Fund

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

20 January 2010

6. Date on which issuer notified:

21 January 2010

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

5%

8: Notified Details

A: Voting rights attached to shares

Class/type of shares

If possible use ISIN code

Situation previous to the triggering transaction

Resulting situation after the triggering transaction

Number of shares

Number of voting rights

Number of shares

Number of voting rights

Percentage of voting rights

Direct

Indirect

Direct

Indirect

GB00B06QFB75

17,413,474

17,413,474

18,260,791

18,260,791

5.07%

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

Percentage of voting rights

18,260,791

5.07%

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:

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

13. Additional information:

14 Contact name:

Guy Abbi, Company Secretary

IG Group Holdings plc

15. Contact telephone name:

020 7896 0011