TR1: Notification of Major Interest in Shares

TR1: NOTIFICATION OF MAJOR INTEREST IN SHARES

1. Identity of the issuer or the underlying issuerof existing shares to which voting rights areattached: ii

CMC MARKETS PLC

2 Reason for the notification (please tick the appropriate box or boxes):

An acquisition or disposal of voting rights

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

ü

An acquisition or disposal of instruments with similar economic effect to qualifying financial instruments

An event changing the breakdown of voting rights

Other (please specify):

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

PETER CRUDDAS

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

5. Date of the transaction and date onwhich the threshold is crossed orreached: v

09/03/2016

6. Date on which issuer notified:

10/03/2016

7. Threshold(s) that is/are crossed orreached: vi, vii

N/A

8. Notified details:

A: Voting rights attached to shares viii, ix

Class/type ofshares

if possible usingthe ISIN CODE

Situation previousto the triggeringtransaction

Resulting situation after the triggering transaction

NumberofShares

NumberofVotingRights

Numberof shares

Number of votingrights

% of voting rights x

Direct

Direct xi

Indirect xii

Direct

Indirect

Ordinary Shares

158,357,767

158,357,767

165,155,374

165,155,374

57.36

GB00B14SKR37

B: Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financialinstrument

Expirationdate xiii

Exercise/Conversion Period xiv

Number of votingrights that may beacquired if theinstrument isexercised/ converted.

% of votingrights

C: Financial Instruments with similar economic effect to Qualifying Financial Instruments xv, xvi

Resulting situation after the triggering transaction

Type of financialinstrument

Exercise price

Expiration date xvii

Exercise/Conversion period xviii

Number of voting rights instrument refers to

% of voting rights xix, xx

Nominal

Delta

Total (A+B+C)

Number of voting rights

Percentage of voting rights

165,155,374

57.36

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

Proxy Voting:

10. Name of the proxy holder:

n/a

11. Number of voting rights proxy holder will ceaseto hold:

n/a

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

n/a

13. Additional information:

Pursuant to the Stock Lending Agreement with Morgan Stanley & Co. International Plc and Goldman Sachs Strategic Investments (U.K.) Limited, Peter Cruddas has had 6,797,607 Ordinary Shares re-delivered to him. The total number of voting rights held by Peter Cruddas is unaffected by this transaction.

14. Contact name:

PETER CRUDDAS

15. Contact telephone number:

020 7170 8200