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TMX Group Limited to hold Annual Meeting and announce Q1 2013 financial results on Friday, May 10, 2013

April 10, 2013

April 10, 2013 (TORONTO) – On Friday, May 10, 2013, TMX Group Limited will hold its Annual and Special Meeting for shareholders in the TMX Gallery at 2:00PM EDT.

Journalists may attend the meeting; however, the use of video equipment will not be permitted during the meeting. There will be a brief media availability following the meeting.

TMX Group will also announce its financial results for the first quarter ended March 31, 2013. An analyst conference call will be held to review the results.

Schedule of Events for May 10, 2013:

Financial Results: Q1 2013 financial results released
Analyst Call: 8:00AM EDT
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 34369784The audio webcast of the conference call will also be available on TMX Group's website atwww.tmx.com, under Investor Relations
Annual Meeting: 2:00PM EDT
TMX Gallery
130 King Street West
Toronto, Ontario
Media Availability: Approximately 3:00PM EDT or immediately following the Annual Meeting.




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 http://www.tmx.com. Follow TMX Group on Twitter at https://twitter.com/tmxgroup.