Dealogic (Holdings) plc -Transactions in own shares.

Dealogic (Holdings) plc ("the Company") announces that it has commenced a non-discretionary programme to purchase ordinary shares during its close period which commences on 15 January 2010 and is scheduled to end on 15 March 2010. The purchased shares will be held as treasury shares.

The buy back programme will be managed by an independent third party, which makes its trading decisions independently of, and uninfluenced by, the Company.

Any acquisitions will be effected within certain pre-set parameters, and in accordance with both the Company's general authority to repurchase shares which requires that the maximum price paid be limited to no more than 5 per cent above the average market value for the shares as derived from the AIM Appendix to the London Stock Exchange Daily Official List for the five business days immediately prior to such purchase.

The Company confirms that it currently has no unpublished price sensitive information.

Contacts:

Dealogic (Holdings) plc

Helen Vincent, Company Secretary                                         Tel: +44 20 7379 5650

J.P. Morgan Cazenove Limited

Nick Beevers                                                                          Tel: + 44 20 7588 2828