Mr. John McKenzie reports

TMX GROUP LIMITED INCREASES DIVIDEND BY 5% TO $0.87 PER COMMON SHARE

The board of directors of TMX Group Ltd. today declared a dividend of 87 cents on each common share outstanding, an increase of four cents or 5 per cent from the previous 83 cents. This dividend is payable on March 10, 2023, to shareholders of record at the close of business on Feb. 24, 2023.

"We are pleased to announce an increase in TMX Group's quarterly dividend, once again demonstrating the strength of our diverse and resilient global business model, and a consistent ability to generate cash flows," said John McKenzie, chief executive officer, TMX Group. "Looking to the future, we are focused on serving our wide range of clients and stakeholders around the world with excellence, adapting to meet the evolving needs of the marketplace, and executing our strategy to achieve long-term, sustainable growth."

TMX Group hereby advises that this dividend is designated as an eligible dividend for Canadian income tax purposes.

About TMX Group Ltd.

TMX Group operates global markets and builds digital communities and analytic solutions that facilitate the financing, growth and success of businesses, traders and investors. TMX Group's key operations include Toronto Stock Exchange, TSX Venture Exchange, TSX Alpha Exchange, the Canadian Depository for Securities, Montreal Exchange, Canadian Derivatives Clearing Corp. and Trayport, which provide listing markets, trading markets, clearing facilities, depository services, technology solutions, data products and other services to the global financial community. TMX Group is headquartered in Toronto and operates offices across North America (Montreal, Calgary, Vancouver and New York), as well as in key international markets, including London, Singapore and Vienna.