TMX Group Inc. to announce financial results for Q2 2010 on Wednesday, July
28, 2010

TORONTO, July 13 /CNW/ - TMX Group Inc. will release its financial results for the second quarter 2010 on Wednesday, July 28, 2010.

A conference call to review the results will be held at 8 a.m. (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 1-800-642-1687, pass code 87836613.

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 Inc. Q2 2010 financial results

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

    WHEN:     Wednesday, July 28, 2010, 8 a.m. (EDT)

    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 (TSX-X)
    -----------------------
    

TMX Group's key subsidiaries operate cash and derivative markets for multiple asset classes including equities, fixed income and energy. Toronto Stock Exchange, TSX Venture Exchange, Montreal Exchange, Natural Gas Exchange, Boston Options Exchange (BOX), Shorcan, Equicom and other TMX Group companies provide trading markets, clearing facilities, data products and other services to the global financial community. TMX Group is headquartered in Toronto with offices in Montreal, Calgary and Vancouver. For more information about TMX Group, visit our website at www.tmx.com.

For further information: Carolyn Quick, Director, Corporate Communications, TMX Group, 416-947-4597, [email protected]; Paul Malcolmson, Director, Investor and Government Relations, TMX Group, 416-947-4317, [email protected]