This lawsuit has been brought by plaintiffs, individually and as representatives of a class of certain Class B shareholders in CME Group, Inc. (“CME”) and certain Class B members of CME’s subsidiary, The Board of Trade of the City of Chicago, Inc. (“CBOT”). The lawsuit alleges that Defendants CME and CBOT have breached their obligations to the Class B Plaintiffs by denying the Class B Plaintiffs the best and most proximate access to the Globex electronic trading platform at the Aurora Data Center (“ADC”), by denying the Class B Plaintiffs the right to trade the full range of CME products on Globex at member rates, and by requiring the Class B Plaintiffs to pay certain fees for colocation at the ADC. Plaintiffs further allege that Defendants violated the Class B Plaintiffs’ rights by allowing Electronic Corporate Members and, on information and belief, other non-member customers to exercise the trading rights and privileges of exchange members without purchasing or leasing seats on the exchange, and by providing preferential fees to certain non-member customers. Plaintiffs seek damages and injunctive relief.

The lawsuit, Langer, et al. v. CME Group, Inc., et al., No. 2014 CH 00829, was filed on January 15, 2014 and is currently pending in the Circuit Court of Cook County, Illinois, Chancery Division. The amended Complaint and other selected case documents can be accessed at this link.

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