12 April 2010

RNS Number: 0678K
IG Group Holdings plc
12 April 2010

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 No

An event changing the breakdown of voting rights No

Other (please specify):______________ N/A

3. Full name of person(s) subject to notification obligation: Janus Capital Management LLC ("Janus")

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): 08 April 2010

6. Date on which issuer notified: 08 April 2010

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

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
11,319,083

Number of voting rights
11,319,083

Resulting situation after the triggering transaction

Number of shares
10,288,825

Number of voting rights
Direct
10,288,825

Percentage of voting rights
Direct
2.85%

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
10,288,825

Percentage of voting rights
2.85%

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: Janus Capital Management LLC

11. Number of voting rights proxy holder will cease to hold: 1,030,258

12. Date on which proxy holder will cease to hold voting rights: 8 April 2010

13. Additional information:

14 Contact name:

Guy Abbi,
Company Secretary
IG Group Holdings plc

15. Contact telephone name: 020 7896 0011