Mr. Eccleston, who will assume the role effective November 3, 2014*, will also become a member of the TMX Group Limited Board of Directors.

Mr. Eccleston brings to TMX Group more than 30 years of extensive experience gained in senior leadership roles in the information services, financial technology and capital market services sectors. Most recently, he was President, S&P Capital IQ and Chairman of the Board, S&P Dow Jones Indices, which are business lines of McGraw Hill Financial. He was with that organization for 6 years. Previously, Mr. Eccleston was at Thomson Financial for 4 years in the roles of President of Global Sales, Marketing & Services and President of the Banking and Brokerage Group. Mr. Eccleston was at Bloomberg LP for 14 years, where he held a number of roles including chief executive of Bloomberg Tradebook for 6 years. He also served as Chairman and CEO of Pivot Inc., a capital market software services company.

Chuck Winograd, Chair of TMX Group Limited, said: "The Board of Directors undertook an extensive international search for our new CEO. It was clear that Lou has the right skill set, experience and proven track record to be successful in this critical role. It was also the Board's view that he has the expertise and instincts to effectively lead the company in this rapidly-evolving operating environment."

Mr. Eccleston stated: "I am honoured to have been selected for this role, and I am very excited to be leading Canada's national group of multi-asset class exchanges. I look forward to meeting and working with the TMX Group executive and employee teams to continue building on the great success they have already achieved."

Mr. Eccleston is the successor to Thomas Kloet, who announced his intention to retire from the company in March 2014. As previously announced, Mr. Kloet has agreed to remain as CEO until October 31.

* Mr. Eccleston's start date is subject to receipt of appropriate approvals from Employment and Social Development Canada and Citizenship and Immigration Canada.