GFI Group Signs Cambridge Mercantile Corp. For Fenics Professional™

Leading provider of global payment services and FX chooses GFI FENICSSM for FX options business

New York, June 14th, 2011 – GFI FENICSSM announced it has entered an agreement with Cambridge Mercantile Corporation of Toronto, Canada for the licensing of FENICS Professional™ 12.1 to support its new FX options business.

Bernard Heitner, CEO, Cambridge Mercantile Corp. said, “We evaluated several systems for FX options pricing, risk management, and transaction processing. FENICS Professional provides risk reporting that is easily tailored to the specific requirements of our FX options workflow making it the best platform to suit our needs. The GFI FENICS customer support team provides in-depth training and ongoing support to help us get the most out of FENICS Professional.”

Sue Poulin, Commercial Head of GFI FENICS for the Americas commented, “We are delighted that Cambridge Mercantile Corp. has selected FENICS Professional to assist in building its FX options business. FENICS Professional allows us to cater to the needs of clients in many different market segments as it provides a robust solution for FX options analysis, pricing and reporting” and added, “GFI FENICS has seen strong growth in the Americas over the last year as it continues to prove itself as a market-leading solution in FX options.”

FENICS Professional is a suite of pricing, trading, risk management and STP (straight-through processing) components allowing customers to control, monitor and oversee every aspect of FX option trading and lifecycle management from one single interface.

GFI FENICS has been providing leading FX derivatives software since 1987. Its products are licensed to over 350 institutions worldwide with thousands of users benefiting from its solutions. Clients include banks, multinational corporations, brokers, and hedge funds.

About GFI Group Inc.

GFI Group Inc. (NYSE: “GFIG”) is a leading provider of wholesale brokerage, clearing services, electronic execution and trading support products for global financial markets. GFI Group Inc. provides brokerage services, market data, trading platform and analytics software products to institutional clients in markets for a range of fixed income, financial, equity and commodity instruments.

Fenics Software Limited is a subsidiary of GFI Group Inc.

Headquartered in New York, GFI was founded in 1987 and employs more than 2,000 people with additional offices in London, Paris, Hong Kong, Seoul, Tokyo, Singapore, Sydney, Cape Town, Santiago, Bogotá, Dubai, Dublin, Tel Aviv, Calgary, Los Angeles, Englewood (NJ) and Sugar Land (TX). GFI Group Inc. provides services and products to over 2,400 institutional clients, including leading investment and commercial banks, corporations, insurance companies and hedge funds. Its brands include GFISM, GFInet®, CreditMatch®, GFI ForexMatch®, EnergyMatch®, FENICS®, Starsupply®, Amerex®, Trayport® and Kyte®.

Forward-looking statement

Certain matters discussed in this press release contain forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. When used in this press release, the words “anticipate,” “believe,” “estimate,” “may,” “might,” “intend,” “expect” and similar expressions identify such forward-looking statements. Actual results, performance or achievements could differ materially from those contemplated, expressed or implied by the forward-looking statements contained herein. These forward-looking statements are based largely on the expectations of GFI Group Inc. (the “Company”) and are subject to a number of risks and uncertainties. These include, but are not limited to, risks and uncertainties associated with: economic, political and market factors affecting trading volumes; securities prices or demand for the Company’s brokerage services; competition from current and new competitors; the Company’s ability to attract and retain key personnel, including highly-qualified brokerage personnel; the Company’s ability to identify and develop new products and markets; changes in laws and regulations governing the Company’s business and operations or permissible activities; the Company’s ability to manage its international operations; financial difficulties experienced by the Company’s customers or key participants in the markets in which the Company focuses its brokerage services; the Company’s ability to keep up with technological changes; uncertainties relating to litigation and the Company’s ability to assess and integrate acquisition prospects. Further information about factors that could affect the Company’s financial and other results is included in the Company’s filings with the Securities and Exchange Commission. The Company does not undertake to publicly update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.

For any queries or additional information please contact:

Patricia Gutierrez

Vice President – Public Relations

GFI Group Inc.

55 Water Street, 28th Floor

New York, NY 10041

Tel: (212) 968 2964

Mob: (646) 717 4379