TSX Group Inc. Declares Dividend Of $0.40 Per Common Share On A Pre-Split Basis

The Board of Directors of TSX Group Inc. [TSX:X] today declared a dividend of $0.40 on each common share outstanding, before giving effect to the proposed two-for-one split of the common shares, payable on June 30, 2005 to shareholders of record at the close of business on May 31, 2005. This dividend will be paid as a dividend of $0.20 per common share outstanding if and when the shares commence trading on a post-split basis.

For the results for the first quarter ended March 31, 2005 for TSX Group Inc., click on the following link: http://www.tsx.com/en/invRelations/index.html.

About TSX Group Inc. (TSX-X)

TSX Group operates Canada's two national stock exchanges, Toronto Stock Exchange serving the senior equity market and TSX Venture Exchange serving the public venture equity market as well as Natural Gas Exchange (NGX), a leading North American exchange for the trading and clearing of natural gas and electricity contracts. TSX are the initials attached to the core equity operations of the TSX Group (www.tsx.com): Toronto Stock Exchange, TSX Venture Exchange, TSX Markets, TSX Datalinx, TSX Technologies. TSX Group is headquartered in Toronto and maintains offices in Montreal, Winnipeg, Calgary and Vancouver.