Kirby McInerney LLP is investigating potential claims against GFI Group Inc. (“GFI” or the “Company”) (NYSE:GFIG) concerning the proposed acquisition of the Company by Chicago Mercantile Exchange Group Inc. (“CME”) (Nasdaq:CME). Under the terms of the proposed transaction, GFI stockholders will receive $4.55 per share in CME Group Class A Common Stock for each share of GFI common stock they own, valuing the deal at approximately $580 million.

The investigation concerns whether the GFI Board of Directors violated its fiduciary duties by agreeing to the proposed transaction and whether the proposed consideration adequately values the Company’s common stock.

If you are a GFI stockholder and wish to obtain additional information, please contact J. Brandon Walker, Esq. by email at bwalker@kmllp.com, or telephone at (212) 699-1145, or Melissa Fortunato, Esq. by email at mfortunato@kmllp.com, or telephone at (212) 699-1141, or toll free at (888) 529-4787, or by filling out this contact form. There is no cost or obligation to you.

Kirby McInerney LLP is a New York-based law firm concentrating in securities, stockholder, whistleblower, antitrust and consumer litigation. For additional information, please go to www.kmllp.com.