Early closure of Offer Period

The information contained herein may only be released, published or distributed in the United Kingdom, Jersey, Guernsey and the Isle of Man in accordance with applicable regulatory requirements. The information contained herein is not for release, publication or distribution in or into the United States, Australia, Canada, Japan, South Africa, the Republic of Ireland or in any other jurisdiction where it is unlawful to distribute this document. The Notes referred to below may only be sold in Jersey in compliance with the provisions of the Control of Borrowing (Jersey) Order 1958.

ICAP plc (the Issuer)

Issue of Sterling-denominated 5.50 per cent. Guaranteed Notes due July 2018 (the Notes)

under the £1,000,000,000

Global Medium Term Note Programme

guaranteed by ICAP Group Holdings plc (the Guarantor)

Early closure of Offer Period relating to the Notes

Terms used herein shall be deemed to be defined as such for the purposes of the Final Terms dated 12 July 2012 (the Final Terms) relating to the offer of the Notes.

Pursuant to its powers under paragraph 37 of Part A of the Final Terms, the Issuer hereby announces that the Offer Period relating to the Notes, which commenced on Thursday 12 July 2012 and which was originally scheduled to close at 12:00 pm (London time) on Tuesday 24 July 2012, will close early at 10:00 am (London time) on Wednesday 18 July 2012.

Important Information

Please refer to the information booklet dated 12 July 2012 (the Information Booklet), the offering circular dated 26 June 2012 as supplemented by a supplementary offering circular dated 12 July 2012 (together, the Offering Circular) and the Final Terms.

ICAP plc is the legal entity that will issue the Notes and ICAP Group Holdings plc is the legal entity that will guarantee the Notes. The contents of this announcement have been prepared by the Issuer and the Guarantor and approved by Lloyds TSB Bank plc and The Royal Bank of Scotland plc, the joint lead managers of the offering of the Notes, solely for the purposes of section 21(2)(b) of the Financial Services and Markets Act 2000 (FSMA). Lloyds TSB Bank plc (incorporated in England No. 2065) whose registered office is 25 Gresham Street, London EC2V 7HN is authorised and regulated by the Financial Services Authority (FSA) and is registered with the FSA (Registration Number 119278). The Royal Bank of Scotland plc (incorporated in Scotland No. 090312) whose registered office is 36 St Andrew Square, Edinburgh, EH2 2YB is authorised and regulated by the FSA and is registered with the FSA (Registration Number: 121882).

This is an advertisement and is not a prospectus for the purposes of EU Directive 2003/71/EC (as amended) or Part VI of the FSMA. The Offering Circular and the Final Terms have been prepared and made available to the public as required by Part VI of the FSMA. Investors may obtain copies of the Offering Circular and the Final Terms from the website of the London Stock Exchange and inspect copies on request at the registered office of ICAP plc at 2 Broadgate, London EC2M 7UR. Investors should not purchase any Notes except on the basis of information contained in the Offering Circular and the Final Terms.

Before buying or selling any Notes you should make sure that you fully understand and accept the risks which are set out in the Offering Circular, and you should determine whether the investment is appropriate for you on the basis of all information contained in the Offering Circular and the Final Terms. ICAP plc, ICAP Group Holdings plc, Lloyds TSB Bank plc and The Royal Bank of Scotland plc do not provide legal, tax, accounting or investment advice in relation to the Notes and are not responsible for any advice you may receive from any third party. You should be aware that the Notes involve a variety of risks and you should seek independent advice if you are in any doubt as to the suitability of this investment for your circumstances.

Subject to certain exceptions, Notes may not be offered, sold or delivered within the United States of America or to, or for the account of or benefit of, U.S. persons. This announcement does not contain or constitute an offer of, or the solicitation of an offer to buy, securities to any person in the United States, Australia, Canada, Japan, the Republic of Ireland or South Africa or to any other person to whom, or in any other jurisdiction in which, such offer or solicitation is unlawful.