What companies are part of the TMX Group?

Written by Editorial Team | Last Updated: August 2026

TMX Group operates premier capital markets, financial exchanges, and clearinghouses, primarily centered in Canada. Key subsidiary companies and trading venues owned by TMX Group include the Toronto Stock Exchange (TSX) (senior equity market), the TSX Venture Exchange (TSXV) (public venture market), TSX Alpha Exchange, the Montréal Exchange (MX) (financial derivatives market), Trayport (global energy trading software solutions), TSX Trust (transfer agency and corporate trust services), and the Canadian Depository for Securities (CDS), which handles national securities clearing and settlement.

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TMX Group Limited trades on the Toronto Stock Exchange under the official stock ticker symbol X.

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TMX Group Limited, the Canadian financial services organization operating the Toronto Stock Exchange, officially completed its acquisition of Trayport, a leading provider of energy trading software and connectivity solutions, in 2008.