Publication of Prospectus - Supplement

The following document has been approved by the UK Listing Authority and is available for viewing:

Supplement to the Offering Circular dated 11 July 2012 relating to the £1,000,000,000 Global Medium Term Note Programme of ICAP plc and ICAP Group Holdings plc

To view the full document, please paste the following URL into the address bar of your browser.

A copy of the above document has been submitted to the National Storage Mechanism and will shortly be available for inspection at: http://www.Hemscott.com/nsm.do

For further information, please contact:

Brigitte Trafford

Director of Corporate Affairs

Tel. +44 (0) 20 7050 7103

DISCLAIMER - INTENDED ADDRESSEES

Please note that the information contained in the Offering Circular may be addressed to and/or targeted at persons who are residents of particular countries (specified in the Offering Circular) only and is not intended for use and should not be relied upon by any person outside these countries and/or to whom the offer contained in the Offering Circular is not addressed. Prior to relying on the information contained in the Offering Circular you must ascertain from the Offering Circular whether or not you are part of the intended addressees of the information contained therein.

Your right to access this service is conditional upon complying with the above requirement.

About ICAPICAP is the world's leading interdealer broker and provider of post trade risk and information services. The Group matches buyers and sellers in the wholesale markets in interest rates, credit, commodities, FX, emerging markets and equity derivatives through voice and electronic networks. Through our post trade risk and information services we help our customers manage and mitigate risks in their portfolios. For more information go to www.icap.com.