The TMX Group also owns the Toronto Stock Exchange (TSX).

As of November 2010, the TSX Venture Exchange had 2,364 listed companies with a combined market capitalization of $60,811,203,235.

[3] The Canadian Venture Exchange was created in Canada on November 29, 1999 as a result of an agreement among the Vancouver, Alberta, Toronto and Montreal exchanges to restructure the Canadian capital markets along the lines of market specialization.

The focus of the CDNX was junior companies, i.e., those whose assets, business and market capitalization were too small to be listed on the Toronto Stock Exchange (TSX).

The small-cap portion of the equities market of the Bourse de Montréal (MSE) was also merged into CDNX at this time.