TMX Group Inc. To announce Financial Results For Q4 2011 On Wednesday, February 8, 2012

TMX Group Inc. will release its financial results for the fourth quarter of 2011 on Wednesday, February 8, 2012.

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 42191175.

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. Q4 2011 financial results

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

WHEN:
Wednesday, February 8, 2012, 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