News Release

TMX Group CEO Plans to Exercise Options and Sell Common Shares

February 15, 2013

February 15, 2013 (TORONTO) – TMX Group Limited (TSX-X) announced today that Tom Kloet, Chief Executive Officer, intends to exercise stock options and sell the underlying shares. As reported in TMX Group's management information circular dated March 30, 2012, Mr. Kloet has a share ownership requirement of three times his base salary, which he will continue to exceed. Under the terms of his employment agreement, Mr. Kloet must disclose his intention to sell or purchase TMX Group common shares, including the exercise of options, at least two business days prior to a transaction.

About TMX Group (TSX-X)

TMX Group's key subsidiaries operate cash and derivative markets and clearinghouses for multiple asset classes including equities, fixed income and energy. Toronto Stock Exchange, TSX Venture Exchange, TMX Select, Alpha Group, The Canadian Depository for Securities, Montreal Exchange, Canadian Derivatives Clearing Corporation, Natural Gas Exchange, BOX Options Exchange, Shorcan, Shorcan Energy Brokers, Equicom and other TMX Group companies provide listing markets, trading markets, clearing facilities, depository services, data products and other services to the global financial community. TMX Group is headquartered in Toronto and operates offices across Canada (Montreal, Calgary and Vancouver), in key U.S. markets (New York, Houston, Boston and Chicago) as well as in London, Beijing and Sydney. For more information about TMX Group, visit our website at www.tmx.com. Follow TMX Group on Twitter at http://twitter.com/tmxgroup.

For more information please contact:

Catherine Kee
Manager, Corporate Communications
TMX Group
416-814-8834
catherine.kee@tmx.com