News Release

TMX Group Limited to announce financial results for Q4 2012 on Wednesday, February 6, 2013

January 14, 2013

January 14, 2013 (TORONTO) TMX Group Limited (previously Maple Group Acquisition Corporation) will file its financial report for the three months and year ended December 31, 2012 on Wednesday, February 6, 2013.

A conference call to review the results will be held at 8 a.m. ET. Phone numbers for the live call are 647-427-7450 or 1-888-231-8191. An audio replay of the conference call will be available at 416-849-0833 or 1-855-859-2056, pass code 88537130.

The audio webcast of the conference call will also be available on TMX Group's website at www.tmx.com under Investor Relations.

WHAT: TMX Group Limited Q4 2012 financial results

WHO:Tom Kloet, CEO, TMX Group
Michael Ptasznik, CFO, TMX Group
Paul Malcolmson, Director, Investor Relations, TMX Group

WHEN: Wednesday, February 6, 2013, 8 a.m. ET

HOW:Phone numbers for the live call are: 647-427-7450 or 1-888-231-8191
Webcast at: www.tmx.com under Investor Relations

About TMX Group

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, Boston 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:

Carolyn Quick
Director, Corporate Communications
TMX Group
416-947-4597
carolyn.quick@tmx.com